radeonsi: extract TGSI memory/texture opcode handling into its own file

It's about time to get the growth of si_shader.c somewhat under control.

Reviewed-by: Marek Olšák <[email protected]>

5 files changed, 1886 insertions, 1841 deletions

diff --git a/src/gallium/drivers/radeonsi/Makefile.sources b/src/gallium/drivers/radeonsi/Makefile.sources
index b4e7fce71e9..626fe6f57ca 100644
--- a/src/gallium/drivers/radeonsi/Makefile.sources
+++ b/src/gallium/drivers/radeonsi/Makefile.sources
@@ -18,6 +18,7 @@ C_SOURCES := \
 	si_shader.h \
 	si_shader_internal.h \
 	si_shader_tgsi_alu.c \
+	si_shader_tgsi_mem.c \
 	si_shader_tgsi_setup.c \
 	si_state.c \
 	si_state_draw.c \
diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index 56a86cd1847..a49449b4ef5 100644
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -3328,44 +3328,6 @@ static void si_llvm_return_fs_outputs(struct lp_build_tgsi_context *bld_base)
 	ctx->return_value = ret;
 }
 
-/**
- * Given a v8i32 resource descriptor for a buffer, extract the size of the
- * buffer in number of elements and return it as an i32.
- */
-static LLVMValueRef get_buffer_size(
-	struct lp_build_tgsi_context *bld_base,
-	LLVMValueRef descriptor)
-{
-	struct si_shader_context *ctx = si_shader_context(bld_base);
-	struct gallivm_state *gallivm = &ctx->gallivm;
-	LLVMBuilderRef builder = gallivm->builder;
-	LLVMValueRef size =
-		LLVMBuildExtractElement(builder, descriptor,
-					LLVMConstInt(ctx->i32, 2, 0), "");
-
-	if (ctx->screen->b.chip_class == VI) {
-		/* On VI, the descriptor contains the size in bytes,
-		 * but TXQ must return the size in elements.
-		 * The stride is always non-zero for resources using TXQ.
-		 */
-		LLVMValueRef stride =
-			LLVMBuildExtractElement(builder, descriptor,
-						ctx->i32_1, "");
-		stride = LLVMBuildLShr(builder, stride,
-				       LLVMConstInt(ctx->i32, 16, 0), "");
-		stride = LLVMBuildAnd(builder, stride,
-				      LLVMConstInt(ctx->i32, 0x3FFF, 0), "");
-
-		size = LLVMBuildUDiv(builder, size, stride, "");
-	}
-
-	return size;
-}
-
-static void build_tex_intrinsic(const struct lp_build_tgsi_action *action,
-				struct lp_build_tgsi_context *bld_base,
-				struct lp_build_emit_data *emit_data);
-
 /* Prevent optimizations (at least of memory accesses) across the current
  * point in the program by emitting empty inline assembly that is marked as
  * having side effects.
@@ -3462,1762 +3424,12 @@ static void clock_emit(
 		LLVMBuildExtractElement(gallivm->builder, tmp, ctx->i32_1, "");
 }
 
-static LLVMValueRef
-shader_buffer_fetch_rsrc(struct si_shader_context *ctx,
-			 const struct tgsi_full_src_register *reg)
-{
-	LLVMValueRef index;
-	LLVMValueRef rsrc_ptr = LLVMGetParam(ctx->main_fn,
-					     ctx->param_shader_buffers);
-
-	if (!reg->Register.Indirect)
-		index = LLVMConstInt(ctx->i32, reg->Register.Index, 0);
-	else
-		index = si_get_bounded_indirect_index(ctx, &reg->Indirect,
-						      reg->Register.Index,
-						      SI_NUM_SHADER_BUFFERS);
-
-	return ac_build_indexed_load_const(&ctx->ac, rsrc_ptr, index);
-}
-
-static bool tgsi_is_array_sampler(unsigned target)
-{
-	return target == TGSI_TEXTURE_1D_ARRAY ||
-	       target == TGSI_TEXTURE_SHADOW1D_ARRAY ||
-	       target == TGSI_TEXTURE_2D_ARRAY ||
-	       target == TGSI_TEXTURE_SHADOW2D_ARRAY ||
-	       target == TGSI_TEXTURE_CUBE_ARRAY ||
-	       target == TGSI_TEXTURE_SHADOWCUBE_ARRAY ||
-	       target == TGSI_TEXTURE_2D_ARRAY_MSAA;
-}
-
-static bool tgsi_is_array_image(unsigned target)
-{
-	return target == TGSI_TEXTURE_3D ||
-	       target == TGSI_TEXTURE_CUBE ||
-	       target == TGSI_TEXTURE_1D_ARRAY ||
-	       target == TGSI_TEXTURE_2D_ARRAY ||
-	       target == TGSI_TEXTURE_CUBE_ARRAY ||
-	       target == TGSI_TEXTURE_2D_ARRAY_MSAA;
-}
-
-/**
- * Given a 256-bit resource descriptor, force the DCC enable bit to off.
- *
- * At least on Tonga, executing image stores on images with DCC enabled and
- * non-trivial can eventually lead to lockups. This can occur when an
- * application binds an image as read-only but then uses a shader that writes
- * to it. The OpenGL spec allows almost arbitrarily bad behavior (including
- * program termination) in this case, but it doesn't cost much to be a bit
- * nicer: disabling DCC in the shader still leads to undefined results but
- * avoids the lockup.
- */
-static LLVMValueRef force_dcc_off(struct si_shader_context *ctx,
-				  LLVMValueRef rsrc)
-{
-	if (ctx->screen->b.chip_class <= CIK) {
-		return rsrc;
-	} else {
-		LLVMBuilderRef builder = ctx->gallivm.builder;
-		LLVMValueRef i32_6 = LLVMConstInt(ctx->i32, 6, 0);
-		LLVMValueRef i32_C = LLVMConstInt(ctx->i32, C_008F28_COMPRESSION_EN, 0);
-		LLVMValueRef tmp;
-
-		tmp = LLVMBuildExtractElement(builder, rsrc, i32_6, "");
-		tmp = LLVMBuildAnd(builder, tmp, i32_C, "");
-		return LLVMBuildInsertElement(builder, rsrc, tmp, i32_6, "");
-	}
-}
-
 LLVMTypeRef si_const_array(LLVMTypeRef elem_type, int num_elements)
 {
 	return LLVMPointerType(LLVMArrayType(elem_type, num_elements),
 			       CONST_ADDR_SPACE);
 }
 
-static LLVMValueRef load_image_desc(struct si_shader_context *ctx,
-				    LLVMValueRef list, LLVMValueRef index,
-				    unsigned target)
-{
-	LLVMBuilderRef builder = ctx->gallivm.builder;
-
-	if (target == TGSI_TEXTURE_BUFFER) {
-		index = LLVMBuildMul(builder, index,
-				     LLVMConstInt(ctx->i32, 2, 0), "");
-		index = LLVMBuildAdd(builder, index,
-				     ctx->i32_1, "");
-		list = LLVMBuildPointerCast(builder, list,
-					    si_const_array(ctx->v4i32, 0), "");
-	}
-
-	return ac_build_indexed_load_const(&ctx->ac, list, index);
-}
-
-/**
- * Load the resource descriptor for \p image.
- */
-static void
-image_fetch_rsrc(
-	struct lp_build_tgsi_context *bld_base,
-	const struct tgsi_full_src_register *image,
-	bool is_store, unsigned target,
-	LLVMValueRef *rsrc)
-{
-	struct si_shader_context *ctx = si_shader_context(bld_base);
-	LLVMValueRef rsrc_ptr = LLVMGetParam(ctx->main_fn,
-					     ctx->param_images);
-	LLVMValueRef index;
-	bool dcc_off = is_store;
-
-	assert(image->Register.File == TGSI_FILE_IMAGE);
-
-	if (!image->Register.Indirect) {
-		const struct tgsi_shader_info *info = bld_base->info;
-		unsigned images_writemask = info->images_store |
-					    info->images_atomic;
-
-		index = LLVMConstInt(ctx->i32, image->Register.Index, 0);
-
-		if (images_writemask & (1 << image->Register.Index))
-			dcc_off = true;
-	} else {
-		/* From the GL_ARB_shader_image_load_store extension spec:
-		 *
-		 *    If a shader performs an image load, store, or atomic
-		 *    operation using an image variable declared as an array,
-		 *    and if the index used to select an individual element is
-		 *    negative or greater than or equal to the size of the
-		 *    array, the results of the operation are undefined but may
-		 *    not lead to termination.
-		 */
-		index = si_get_bounded_indirect_index(ctx, &image->Indirect,
-						      image->Register.Index,
-						      SI_NUM_IMAGES);
-	}
-
-	*rsrc = load_image_desc(ctx, rsrc_ptr, index, target);
-	if (dcc_off && target != TGSI_TEXTURE_BUFFER)
-		*rsrc = force_dcc_off(ctx, *rsrc);
-}
-
-static LLVMValueRef image_fetch_coords(
-		struct lp_build_tgsi_context *bld_base,
-		const struct tgsi_full_instruction *inst,
-		unsigned src, LLVMValueRef desc)
-{
-	struct si_shader_context *ctx = si_shader_context(bld_base);
-	struct gallivm_state *gallivm = &ctx->gallivm;
-	LLVMBuilderRef builder = gallivm->builder;
-	unsigned target = inst->Memory.Texture;
-	unsigned num_coords = tgsi_util_get_texture_coord_dim(target);
-	LLVMValueRef coords[4];
-	LLVMValueRef tmp;
-	int chan;
-
-	for (chan = 0; chan < num_coords; ++chan) {
-		tmp = lp_build_emit_fetch(bld_base, inst, src, chan);
-		tmp = LLVMBuildBitCast(builder, tmp, ctx->i32, "");
-		coords[chan] = tmp;
-	}
-
-	if (ctx->screen->b.chip_class >= GFX9) {
-		/* 1D textures are allocated and used as 2D on GFX9. */
-		if (target == TGSI_TEXTURE_1D) {
-			coords[1] = ctx->i32_0;
-			num_coords++;
-		} else if (target == TGSI_TEXTURE_1D_ARRAY) {
-			coords[2] = coords[1];
-			coords[1] = ctx->i32_0;
-			num_coords++;
-		} else if (target == TGSI_TEXTURE_2D) {
-			/* The hw can't bind a slice of a 3D image as a 2D
-			 * image, because it ignores BASE_ARRAY if the target
-			 * is 3D. The workaround is to read BASE_ARRAY and set
-			 * it as the 3rd address operand for all 2D images.
-			 */
-			LLVMValueRef first_layer, const5, mask;
-
-			const5 = LLVMConstInt(ctx->i32, 5, 0);
-			mask = LLVMConstInt(ctx->i32, S_008F24_BASE_ARRAY(~0), 0);
-			first_layer = LLVMBuildExtractElement(builder, desc, const5, "");
-			first_layer = LLVMBuildAnd(builder, first_layer, mask, "");
-
-			coords[2] = first_layer;
-			num_coords++;
-		}
-	}
-
-	if (num_coords == 1)
-		return coords[0];
-
-	if (num_coords == 3) {
-		/* LLVM has difficulties lowering 3-element vectors. */
-		coords[3] = bld_base->uint_bld.undef;
-		num_coords = 4;
-	}
-
-	return lp_build_gather_values(gallivm, coords, num_coords);
-}
-
-/**
- * Append the extra mode bits that are used by image load and store.
- */
-static void image_append_args(
-		struct si_shader_context *ctx,
-		struct lp_build_emit_data * emit_data,
-		unsigned target,
-		bool atomic,
-		bool force_glc)
-{
-	const struct tgsi_full_instruction *inst = emit_data->inst;
-	LLVMValueRef i1false = LLVMConstInt(ctx->i1, 0, 0);
-	LLVMValueRef i1true = LLVMConstInt(ctx->i1, 1, 0);
-	LLVMValueRef r128 = i1false;
-	LLVMValueRef da = tgsi_is_array_image(target) ? i1true : i1false;
-	LLVMValueRef glc =
-		force_glc ||
-		inst->Memory.Qualifier & (TGSI_MEMORY_COHERENT | TGSI_MEMORY_VOLATILE) ?
-		i1true : i1false;
-	LLVMValueRef slc = i1false;
-	LLVMValueRef lwe = i1false;
-
-	if (atomic || (HAVE_LLVM <= 0x0309)) {
-		emit_data->args[emit_data->arg_count++] = r128;
-		emit_data->args[emit_data->arg_count++] = da;
-		if (!atomic) {
-			emit_data->args[emit_data->arg_count++] = glc;
-		}
-		emit_data->args[emit_data->arg_count++] = slc;
-		return;
-	}
-
-	/* HAVE_LLVM >= 0x0400 */
-	emit_data->args[emit_data->arg_count++] = glc;
-	emit_data->args[emit_data->arg_count++] = slc;
-	emit_data->args[emit_data->arg_count++] = lwe;
-	emit_data->args[emit_data->arg_count++] = da;
-}
-
-/**
- * Append the resource and indexing arguments for buffer intrinsics.
- *
- * \param rsrc the v4i32 buffer resource
- * \param index index into the buffer (stride-based)
- * \param offset byte offset into the buffer
- */
-static void buffer_append_args(
-		struct si_shader_context *ctx,
-		struct lp_build_emit_data *emit_data,
-		LLVMValueRef rsrc,
-		LLVMValueRef index,
-		LLVMValueRef offset,
-		bool atomic,
-		bool force_glc)
-{
-	const struct tgsi_full_instruction *inst = emit_data->inst;
-	LLVMValueRef i1false = LLVMConstInt(ctx->i1, 0, 0);
-	LLVMValueRef i1true = LLVMConstInt(ctx->i1, 1, 0);
-
-	emit_data->args[emit_data->arg_count++] = rsrc;
-	emit_data->args[emit_data->arg_count++] = index; /* vindex */
-	emit_data->args[emit_data->arg_count++] = offset; /* voffset */
-	if (!atomic) {
-		emit_data->args[emit_data->arg_count++] =
-			force_glc ||
-			inst->Memory.Qualifier & (TGSI_MEMORY_COHERENT | TGSI_MEMORY_VOLATILE) ?
-			i1true : i1false; /* glc */
-	}
-	emit_data->args[emit_data->arg_count++] = i1false; /* slc */
-}
-
-static void load_fetch_args(
-		struct lp_build_tgsi_context * bld_base,
-		struct lp_build_emit_data * emit_data)
-{
-	struct si_shader_context *ctx = si_shader_context(bld_base);
-	struct gallivm_state *gallivm = &ctx->gallivm;
-	const struct tgsi_full_instruction * inst = emit_data->inst;
-	unsigned target = inst->Memory.Texture;
-	LLVMValueRef rsrc;
-
-	emit_data->dst_type = ctx->v4f32;
-
-	if (inst->Src[0].Register.File == TGSI_FILE_BUFFER) {
-		LLVMBuilderRef builder = gallivm->builder;
-		LLVMValueRef offset;
-		LLVMValueRef tmp;
-
-		rsrc = shader_buffer_fetch_rsrc(ctx, &inst->Src[0]);
-
-		tmp = lp_build_emit_fetch(bld_base, inst, 1, 0);
-		offset = LLVMBuildBitCast(builder, tmp, ctx->i32, "");
-
-		buffer_append_args(ctx, emit_data, rsrc, ctx->i32_0,
-				   offset, false, false);
-	} else if (inst->Src[0].Register.File == TGSI_FILE_IMAGE) {
-		LLVMValueRef coords;
-
-		image_fetch_rsrc(bld_base, &inst->Src[0], false, target, &rsrc);
-		coords = image_fetch_coords(bld_base, inst, 1, rsrc);
-
-		if (target == TGSI_TEXTURE_BUFFER) {
-			buffer_append_args(ctx, emit_data, rsrc, coords,
-					   ctx->i32_0, false, false);
-		} else {
-			emit_data->args[0] = coords;
-			emit_data->args[1] = rsrc;
-			emit_data->args[2] = LLVMConstInt(ctx->i32, 15, 0); /* dmask */
-			emit_data->arg_count = 3;
-
-			image_append_args(ctx, emit_data, target, false, false);
-		}
-	}
-}
-
-static unsigned get_load_intr_attribs(bool readonly_memory)
-{
-	/* READNONE means writes can't affect it, while READONLY means that
-	 * writes can affect it. */
-	return readonly_memory && HAVE_LLVM >= 0x0400 ?
-				 LP_FUNC_ATTR_READNONE :
-				 LP_FUNC_ATTR_READONLY;
-}
-
-static unsigned get_store_intr_attribs(bool writeonly_memory)
-{
-	return writeonly_memory && HAVE_LLVM >= 0x0400 ?
-				  LP_FUNC_ATTR_INACCESSIBLE_MEM_ONLY :
-				  LP_FUNC_ATTR_WRITEONLY;
-}
-
-static void load_emit_buffer(struct si_shader_context *ctx,
-			     struct lp_build_emit_data *emit_data,
-			     bool readonly_memory)
-{
-	const struct tgsi_full_instruction *inst = emit_data->inst;
-	struct gallivm_state *gallivm = &ctx->gallivm;
-	LLVMBuilderRef builder = gallivm->builder;
-	uint writemask = inst->Dst[0].Register.WriteMask;
-	uint count = util_last_bit(writemask);
-	const char *intrinsic_name;
-	LLVMTypeRef dst_type;
-
-	switch (count) {
-	case 1:
-		intrinsic_name = "llvm.amdgcn.buffer.load.f32";
-		dst_type = ctx->f32;
-		break;
-	case 2:
-		intrinsic_name = "llvm.amdgcn.buffer.load.v2f32";
-		dst_type = LLVMVectorType(ctx->f32, 2);
-		break;
-	default: // 3 & 4
-		intrinsic_name = "llvm.amdgcn.buffer.load.v4f32";
-		dst_type = ctx->v4f32;
-		count = 4;
-	}
-
-	emit_data->output[emit_data->chan] = lp_build_intrinsic(
-			builder, intrinsic_name, dst_type,
-			emit_data->args, emit_data->arg_count,
-			get_load_intr_attribs(readonly_memory));
-}
-
-static LLVMValueRef get_memory_ptr(struct si_shader_context *ctx,
-                                   const struct tgsi_full_instruction *inst,
-                                   LLVMTypeRef type, int arg)
-{
-	struct gallivm_state *gallivm = &ctx->gallivm;
-	LLVMBuilderRef builder = gallivm->builder;
-	LLVMValueRef offset, ptr;
-	int addr_space;
-
-	offset = lp_build_emit_fetch(&ctx->bld_base, inst, arg, 0);
-	offset = LLVMBuildBitCast(builder, offset, ctx->i32, "");
-
-	ptr = ctx->shared_memory;
-	ptr = LLVMBuildGEP(builder, ptr, &offset, 1, "");
-	addr_space = LLVMGetPointerAddressSpace(LLVMTypeOf(ptr));
-	ptr = LLVMBuildBitCast(builder, ptr, LLVMPointerType(type, addr_space), "");
-
-	return ptr;
-}
-
-static void load_emit_memory(
-		struct si_shader_context *ctx,
-		struct lp_build_emit_data *emit_data)
-{
-	const struct tgsi_full_instruction *inst = emit_data->inst;
-	struct gallivm_state *gallivm = &ctx->gallivm;
-	LLVMBuilderRef builder = gallivm->builder;
-	unsigned writemask = inst->Dst[0].Register.WriteMask;
-	LLVMValueRef channels[4], ptr, derived_ptr, index;
-	int chan;
-
-	ptr = get_memory_ptr(ctx, inst, ctx->f32, 1);
-
-	for (chan = 0; chan < 4; ++chan) {
-		if (!(writemask & (1 << chan))) {
-			channels[chan] = LLVMGetUndef(ctx->f32);
-			continue;
-		}
-
-		index = LLVMConstInt(ctx->i32, chan, 0);
-		derived_ptr = LLVMBuildGEP(builder, ptr, &index, 1, "");
-		channels[chan] = LLVMBuildLoad(builder, derived_ptr, "");
-	}
-	emit_data->output[emit_data->chan] = lp_build_gather_values(gallivm, channels, 4);
-}
-
-/**
- * Return true if the memory accessed by a LOAD or STORE instruction is
- * read-only or write-only, respectively.
- *
- * \param shader_buffers_reverse_access_mask
- *	For LOAD, set this to (store | atomic) slot usage in the shader.
- *	For STORE, set this to (load | atomic) slot usage in the shader.
- * \param images_reverse_access_mask  Same as above, but for images.
- */
-static bool is_oneway_access_only(const struct tgsi_full_instruction *inst,
-				  const struct tgsi_shader_info *info,
-				  unsigned shader_buffers_reverse_access_mask,
-				  unsigned images_reverse_access_mask)
-{
-	/* RESTRICT means NOALIAS.
-	 * If there are no writes, we can assume the accessed memory is read-only.
-	 * If there are no reads, we can assume the accessed memory is write-only.
-	 */
-	if (inst->Memory.Qualifier & TGSI_MEMORY_RESTRICT) {
-		unsigned reverse_access_mask;
-
-		if (inst->Src[0].Register.File == TGSI_FILE_BUFFER) {
-			reverse_access_mask = shader_buffers_reverse_access_mask;
-		} else if (inst->Memory.Texture == TGSI_TEXTURE_BUFFER) {
-			reverse_access_mask = info->images_buffers &
-					      images_reverse_access_mask;
-		} else {
-			reverse_access_mask = ~info->images_buffers &
-					      images_reverse_access_mask;
-		}
-
-		if (inst->Src[0].Register.Indirect) {
-			if (!reverse_access_mask)
-				return true;
-		} else {
-			if (!(reverse_access_mask &
-			      (1u << inst->Src[0].Register.Index)))
-				return true;
-		}
-	}
-
-	/* If there are no buffer writes (for both shader buffers & image
-	 * buffers), it implies that buffer memory is read-only.
-	 * If there are no buffer reads (for both shader buffers & image
-	 * buffers), it implies that buffer memory is write-only.
-	 *
-	 * Same for the case when there are no writes/reads for non-buffer
-	 * images.
-	 */
-	if (inst->Src[0].Register.File == TGSI_FILE_BUFFER ||
-	    (inst->Src[0].Register.File == TGSI_FILE_IMAGE &&
-	     inst->Memory.Texture == TGSI_TEXTURE_BUFFER)) {
-		if (!shader_buffers_reverse_access_mask &&
-		    !(info->images_buffers & images_reverse_access_mask))
-			return true;
-	} else {
-		if (!(~info->images_buffers & images_reverse_access_mask))
-			return true;
-	}
-	return false;
-}
-
-static void load_emit(
-		const struct lp_build_tgsi_action *action,
-		struct lp_build_tgsi_context *bld_base,
-		struct lp_build_emit_data *emit_data)
-{
-	struct si_shader_context *ctx = si_shader_context(bld_base);
-	struct gallivm_state *gallivm = &ctx->gallivm;
-	LLVMBuilderRef builder = gallivm->builder;
-	const struct tgsi_full_instruction * inst = emit_data->inst;
-	const struct tgsi_shader_info *info = &ctx->shader->selector->info;
-	char intrinsic_name[64];
-	bool readonly_memory = false;
-
-	if (inst->Src[0].Register.File == TGSI_FILE_MEMORY) {
-		load_emit_memory(ctx, emit_data);
-		return;
-	}
-
-	if (inst->Memory.Qualifier & TGSI_MEMORY_VOLATILE)
-		si_emit_waitcnt(ctx, VM_CNT);
-
-	readonly_memory = !(inst->Memory.Qualifier & TGSI_MEMORY_VOLATILE) &&
-			  is_oneway_access_only(inst, info,
-						info->shader_buffers_store |
-						info->shader_buffers_atomic,
-						info->images_store |
-						info->images_atomic);
-
-	if (inst->Src[0].Register.File == TGSI_FILE_BUFFER) {
-		load_emit_buffer(ctx, emit_data, readonly_memory);
-		return;
-	}
-
-	if (inst->Memory.Texture == TGSI_TEXTURE_BUFFER) {
-		emit_data->output[emit_data->chan] =
-			lp_build_intrinsic(
-				builder, "llvm.amdgcn.buffer.load.format.v4f32", emit_data->dst_type,
-				emit_data->args, emit_data->arg_count,
-				get_load_intr_attribs(readonly_memory));
-	} else {
-		ac_get_image_intr_name("llvm.amdgcn.image.load",
-				       emit_data->dst_type,		/* vdata */
-				       LLVMTypeOf(emit_data->args[0]), /* coords */
-				       LLVMTypeOf(emit_data->args[1]), /* rsrc */
-				       intrinsic_name, sizeof(intrinsic_name));
-
-		emit_data->output[emit_data->chan] =
-			lp_build_intrinsic(
-				builder, intrinsic_name, emit_data->dst_type,
-				emit_data->args, emit_data->arg_count,
-				get_load_intr_attribs(readonly_memory));
-	}
-}
-
-static void store_fetch_args(
-		struct lp_build_tgsi_context * bld_base,
-		struct lp_build_emit_data * emit_data)
-{
-	struct si_shader_context *ctx = si_shader_context(bld_base);
-	struct gallivm_state *gallivm = &ctx->gallivm;
-	LLVMBuilderRef builder = gallivm->builder;
-	const struct tgsi_full_instruction * inst = emit_data->inst;
-	struct tgsi_full_src_register memory;
-	LLVMValueRef chans[4];
-	LLVMValueRef data;
-	LLVMValueRef rsrc;
-	unsigned chan;
-
-	emit_data->dst_type = LLVMVoidTypeInContext(gallivm->context);
-
-	for (chan = 0; chan < 4; ++chan) {
-		chans[chan] = lp_build_emit_fetch(bld_base, inst, 1, chan);
-	}
-	data = lp_build_gather_values(gallivm, chans, 4);
-
-	emit_data->args[emit_data->arg_count++] = data;
-
-	memory = tgsi_full_src_register_from_dst(&inst->Dst[0]);
-
-	if (inst->Dst[0].Register.File == TGSI_FILE_BUFFER) {
-		LLVMValueRef offset;
-		LLVMValueRef tmp;
-
-		rsrc = shader_buffer_fetch_rsrc(ctx, &memory);
-
-		tmp = lp_build_emit_fetch(bld_base, inst, 0, 0);
-		offset = LLVMBuildBitCast(builder, tmp, ctx->i32, "");
-
-		buffer_append_args(ctx, emit_data, rsrc, ctx->i32_0,
-				   offset, false, false);
-	} else if (inst->Dst[0].Register.File == TGSI_FILE_IMAGE) {
-		unsigned target = inst->Memory.Texture;
-		LLVMValueRef coords;
-
-		/* 8bit/16bit TC L1 write corruption bug on SI.
-		 * All store opcodes not aligned to a dword are affected.
-		 *
-		 * The only way to get unaligned stores in radeonsi is through
-		 * shader images.
-		 */
-		bool force_glc = ctx->screen->b.chip_class == SI;
-
-		image_fetch_rsrc(bld_base, &memory, true, target, &rsrc);
-		coords = image_fetch_coords(bld_base, inst, 0, rsrc);
-
-		if (target == TGSI_TEXTURE_BUFFER) {
-			buffer_append_args(ctx, emit_data, rsrc, coords,
-					   ctx->i32_0, false, force_glc);
-		} else {
-			emit_data->args[1] = coords;
-			emit_data->args[2] = rsrc;
-			emit_data->args[3] = LLVMConstInt(ctx->i32, 15, 0); /* dmask */
-			emit_data->arg_count = 4;
-
-			image_append_args(ctx, emit_data, target, false, force_glc);
-		}
-	}
-}
-
-static void store_emit_buffer(
-		struct si_shader_context *ctx,
-		struct lp_build_emit_data *emit_data,
-		bool writeonly_memory)
-{
-	const struct tgsi_full_instruction *inst = emit_data->inst;
-	struct gallivm_state *gallivm = &ctx->gallivm;
-	LLVMBuilderRef builder = gallivm->builder;
-	LLVMValueRef base_data = emit_data->args[0];
-	LLVMValueRef base_offset = emit_data->args[3];
-	unsigned writemask = inst->Dst[0].Register.WriteMask;
-
-	while (writemask) {
-		int start, count;
-		const char *intrinsic_name;
-		LLVMValueRef data;
-		LLVMValueRef offset;
-		LLVMValueRef tmp;
-
-		u_bit_scan_consecutive_range(&writemask, &start, &count);
-
-		/* Due to an LLVM limitation, split 3-element writes
-		 * into a 2-element and a 1-element write. */
-		if (count == 3) {
-			writemask |= 1 << (start + 2);
-			count = 2;
-		}
-
-		if (count == 4) {
-			data = base_data;
-			intrinsic_name = "llvm.amdgcn.buffer.store.v4f32";
-		} else if (count == 2) {
-			LLVMTypeRef v2f32 = LLVMVectorType(ctx->f32, 2);
-
-			tmp = LLVMBuildExtractElement(
-				builder, base_data,
-				LLVMConstInt(ctx->i32, start, 0), "");
-			data = LLVMBuildInsertElement(
-				builder, LLVMGetUndef(v2f32), tmp,
-				ctx->i32_0, "");
-
-			tmp = LLVMBuildExtractElement(
-				builder, base_data,
-				LLVMConstInt(ctx->i32, start + 1, 0), "");
-			data = LLVMBuildInsertElement(
-				builder, data, tmp, ctx->i32_1, "");
-
-			intrinsic_name = "llvm.amdgcn.buffer.store.v2f32";
-		} else {
-			assert(count == 1);
-			data = LLVMBuildExtractElement(
-				builder, base_data,
-				LLVMConstInt(ctx->i32, start, 0), "");
-			intrinsic_name = "llvm.amdgcn.buffer.store.f32";
-		}
-
-		offset = base_offset;
-		if (start != 0) {
-			offset = LLVMBuildAdd(
-				builder, offset,
-				LLVMConstInt(ctx->i32, start * 4, 0), "");
-		}
-
-		emit_data->args[0] = data;
-		emit_data->args[3] = offset;
-
-		lp_build_intrinsic(
-			builder, intrinsic_name, emit_data->dst_type,
-			emit_data->args, emit_data->arg_count,
-			get_store_intr_attribs(writeonly_memory));
-	}
-}
-
-static void store_emit_memory(
-		struct si_shader_context *ctx,
-		struct lp_build_emit_data *emit_data)
-{
-	const struct tgsi_full_instruction *inst = emit_data->inst;
-	struct gallivm_state *gallivm = &ctx->gallivm;
-	LLVMBuilderRef builder = gallivm->builder;
-	unsigned writemask = inst->Dst[0].Register.WriteMask;
-	LLVMValueRef ptr, derived_ptr, data, index;
-	int chan;
-
-	ptr = get_memory_ptr(ctx, inst, ctx->f32, 0);
-
-	for (chan = 0; chan < 4; ++chan) {
-		if (!(writemask & (1 << chan))) {
-			continue;
-		}
-		data = lp_build_emit_fetch(&ctx->bld_base, inst, 1, chan);
-		index = LLVMConstInt(ctx->i32, chan, 0);
-		derived_ptr = LLVMBuildGEP(builder, ptr, &index, 1, "");
-		LLVMBuildStore(builder, data, derived_ptr);
-	}
-}
-
-static void store_emit(
-		const struct lp_build_tgsi_action *action,
-		struct lp_build_tgsi_context *bld_base,
-		struct lp_build_emit_data *emit_data)
-{
-	struct si_shader_context *ctx = si_shader_context(bld_base);
-	struct gallivm_state *gallivm = &ctx->gallivm;
-	LLVMBuilderRef builder = gallivm->builder;
-	const struct tgsi_full_instruction * inst = emit_data->inst;
-	const struct tgsi_shader_info *info = &ctx->shader->selector->info;
-	unsigned target = inst->Memory.Texture;
-	char intrinsic_name[64];
-	bool writeonly_memory = false;
-
-	if (inst->Dst[0].Register.File == TGSI_FILE_MEMORY) {
-		store_emit_memory(ctx, emit_data);
-		return;
-	}
-
-	if (inst->Memory.Qualifier & TGSI_MEMORY_VOLATILE)
-		si_emit_waitcnt(ctx, VM_CNT);
-
-	writeonly_memory = is_oneway_access_only(inst, info,
-						 info->shader_buffers_load |
-						 info->shader_buffers_atomic,
-						 info->images_load |
-						 info->images_atomic);
-
-	if (inst->Dst[0].Register.File == TGSI_FILE_BUFFER) {
-		store_emit_buffer(ctx, emit_data, writeonly_memory);
-		return;
-	}
-
-	if (target == TGSI_TEXTURE_BUFFER) {
-		emit_data->output[emit_data->chan] = lp_build_intrinsic(
-			builder, "llvm.amdgcn.buffer.store.format.v4f32",
-			emit_data->dst_type, emit_data->args,
-			emit_data->arg_count,
-			get_store_intr_attribs(writeonly_memory));
-	} else {
-		ac_get_image_intr_name("llvm.amdgcn.image.store",
-				       LLVMTypeOf(emit_data->args[0]), /* vdata */
-				       LLVMTypeOf(emit_data->args[1]), /* coords */
-				       LLVMTypeOf(emit_data->args[2]), /* rsrc */
-				       intrinsic_name, sizeof(intrinsic_name));
-
-		emit_data->output[emit_data->chan] =
-			lp_build_intrinsic(
-				builder, intrinsic_name, emit_data->dst_type,
-				emit_data->args, emit_data->arg_count,
-				get_store_intr_attribs(writeonly_memory));
-	}
-}
-
-static void atomic_fetch_args(
-		struct lp_build_tgsi_context * bld_base,
-		struct lp_build_emit_data * emit_data)
-{
-	struct si_shader_context *ctx = si_shader_context(bld_base);
-	struct gallivm_state *gallivm = &ctx->gallivm;
-	LLVMBuilderRef builder = gallivm->builder;
-	const struct tgsi_full_instruction * inst = emit_data->inst;
-	LLVMValueRef data1, data2;
-	LLVMValueRef rsrc;
-	LLVMValueRef tmp;
-
-	emit_data->dst_type = ctx->f32;
-
-	tmp = lp_build_emit_fetch(bld_base, inst, 2, 0);
-	data1 = LLVMBuildBitCast(builder, tmp, ctx->i32, "");
-
-	if (inst->Instruction.Opcode == TGSI_OPCODE_ATOMCAS) {
-		tmp = lp_build_emit_fetch(bld_base, inst, 3, 0);
-		data2 = LLVMBuildBitCast(builder, tmp, ctx->i32, "");
-	}
-
-	/* llvm.amdgcn.image/buffer.atomic.cmpswap reflect the hardware order
-	 * of arguments, which is reversed relative to TGSI (and GLSL)
-	 */
-	if (inst->Instruction.Opcode == TGSI_OPCODE_ATOMCAS)
-		emit_data->args[emit_data->arg_count++] = data2;
-	emit_data->args[emit_data->arg_count++] = data1;
-
-	if (inst->Src[0].Register.File == TGSI_FILE_BUFFER) {
-		LLVMValueRef offset;
-
-		rsrc = shader_buffer_fetch_rsrc(ctx, &inst->Src[0]);
-
-		tmp = lp_build_emit_fetch(bld_base, inst, 1, 0);
-		offset = LLVMBuildBitCast(builder, tmp, ctx->i32, "");
-
-		buffer_append_args(ctx, emit_data, rsrc, ctx->i32_0,
-				   offset, true, false);
-	} else if (inst->Src[0].Register.File == TGSI_FILE_IMAGE) {
-		unsigned target = inst->Memory.Texture;
-		LLVMValueRef coords;
-
-		image_fetch_rsrc(bld_base, &inst->Src[0], true, target, &rsrc);
-		coords = image_fetch_coords(bld_base, inst, 1, rsrc);
-
-		if (target == TGSI_TEXTURE_BUFFER) {
-			buffer_append_args(ctx, emit_data, rsrc, coords,
-					   ctx->i32_0, true, false);
-		} else {
-			emit_data->args[emit_data->arg_count++] = coords;
-			emit_data->args[emit_data->arg_count++] = rsrc;
-
-			image_append_args(ctx, emit_data, target, true, false);
-		}
-	}
-}
-
-static void atomic_emit_memory(struct si_shader_context *ctx,
-                               struct lp_build_emit_data *emit_data) {
-	struct gallivm_state *gallivm = &ctx->gallivm;
-	LLVMBuilderRef builder = gallivm->builder;
-	const struct tgsi_full_instruction * inst = emit_data->inst;
-	LLVMValueRef ptr, result, arg;
-
-	ptr = get_memory_ptr(ctx, inst, ctx->i32, 1);
-
-	arg = lp_build_emit_fetch(&ctx->bld_base, inst, 2, 0);
-	arg = LLVMBuildBitCast(builder, arg, ctx->i32, "");
-
-	if (inst->Instruction.Opcode == TGSI_OPCODE_ATOMCAS) {
-		LLVMValueRef new_data;
-		new_data = lp_build_emit_fetch(&ctx->bld_base,
-		                               inst, 3, 0);
-
-		new_data = LLVMBuildBitCast(builder, new_data, ctx->i32, "");
-
-		result = LLVMBuildAtomicCmpXchg(builder, ptr, arg, new_data,
-		                       LLVMAtomicOrderingSequentiallyConsistent,
-		                       LLVMAtomicOrderingSequentiallyConsistent,
-		                       false);
-
-		result = LLVMBuildExtractValue(builder, result, 0, "");
-	} else {
-		LLVMAtomicRMWBinOp op;
-
-		switch(inst->Instruction.Opcode) {
-			case TGSI_OPCODE_ATOMUADD:
-				op = LLVMAtomicRMWBinOpAdd;
-				break;
-			case TGSI_OPCODE_ATOMXCHG:
-				op = LLVMAtomicRMWBinOpXchg;
-				break;
-			case TGSI_OPCODE_ATOMAND:
-				op = LLVMAtomicRMWBinOpAnd;
-				break;
-			case TGSI_OPCODE_ATOMOR:
-				op = LLVMAtomicRMWBinOpOr;
-				break;
-			case TGSI_OPCODE_ATOMXOR:
-				op = LLVMAtomicRMWBinOpXor;
-				break;
-			case TGSI_OPCODE_ATOMUMIN:
-				op = LLVMAtomicRMWBinOpUMin;
-				break;
-			case TGSI_OPCODE_ATOMUMAX:
-				op = LLVMAtomicRMWBinOpUMax;
-				break;
-			case TGSI_OPCODE_ATOMIMIN:
-				op = LLVMAtomicRMWBinOpMin;
-				break;
-			case TGSI_OPCODE_ATOMIMAX:
-				op = LLVMAtomicRMWBinOpMax;
-				break;
-			default:
-				unreachable("unknown atomic opcode");
-		}
-
-		result = LLVMBuildAtomicRMW(builder, op, ptr, arg,
-		                       LLVMAtomicOrderingSequentiallyConsistent,
-		                       false);
-	}
-	emit_data->output[emit_data->chan] = LLVMBuildBitCast(builder, result, emit_data->dst_type, "");
-}
-
-static void atomic_emit(
-		const struct lp_build_tgsi_action *action,
-		struct lp_build_tgsi_context *bld_base,
-		struct lp_build_emit_data *emit_data)
-{
-	struct si_shader_context *ctx = si_shader_context(bld_base);
-	struct gallivm_state *gallivm = &ctx->gallivm;
-	LLVMBuilderRef builder = gallivm->builder;
-	const struct tgsi_full_instruction * inst = emit_data->inst;
-	char intrinsic_name[40];
-	LLVMValueRef tmp;
-
-	if (inst->Src[0].Register.File == TGSI_FILE_MEMORY) {
-		atomic_emit_memory(ctx, emit_data);
-		return;
-	}
-
-	if (inst->Src[0].Register.File == TGSI_FILE_BUFFER ||
-	    inst->Memory.Texture == TGSI_TEXTURE_BUFFER) {
-		snprintf(intrinsic_name, sizeof(intrinsic_name),
-			 "llvm.amdgcn.buffer.atomic.%s", action->intr_name);
-	} else {
-		LLVMValueRef coords;
-		char coords_type[8];
-
-		if (inst->Instruction.Opcode == TGSI_OPCODE_ATOMCAS)
-			coords = emit_data->args[2];
-		else
-			coords = emit_data->args[1];
-
-		ac_build_type_name_for_intr(LLVMTypeOf(coords), coords_type, sizeof(coords_type));
-		snprintf(intrinsic_name, sizeof(intrinsic_name),
-			 "llvm.amdgcn.image.atomic.%s.%s",
-			 action->intr_name, coords_type);
-	}
-
-	tmp = lp_build_intrinsic(
-		builder, intrinsic_name, ctx->i32,
-		emit_data->args, emit_data->arg_count, 0);
-	emit_data->output[emit_data->chan] =
-		LLVMBuildBitCast(builder, tmp, ctx->f32, "");
-}
-
-static void set_tex_fetch_args(struct si_shader_context *ctx,
-			       struct lp_build_emit_data *emit_data,
-			       unsigned target,
-			       LLVMValueRef res_ptr, LLVMValueRef samp_ptr,
-			       LLVMValueRef *param, unsigned count,
-			       unsigned dmask)
-{
-	struct gallivm_state *gallivm = &ctx->gallivm;
-	struct ac_image_args args = {};
-
-	/* Pad to power of two vector */
-	while (count < util_next_power_of_two(count))
-		param[count++] = LLVMGetUndef(ctx->i32);
-
-	if (count > 1)
-		args.addr = lp_build_gather_values(gallivm, param, count);
-	else
-		args.addr = param[0];
-
-	args.resource = res_ptr;
-	args.sampler = samp_ptr;
-	args.dmask = dmask;
-	args.unorm = target == TGSI_TEXTURE_RECT ||
-		     target == TGSI_TEXTURE_SHADOWRECT;
-	args.da = tgsi_is_array_sampler(target);
-
-	/* Ugly, but we seem to have no other choice right now. */
-	STATIC_ASSERT(sizeof(args) <= sizeof(emit_data->args));
-	memcpy(emit_data->args, &args, sizeof(args));
-}
-
-static LLVMValueRef fix_resinfo(struct si_shader_context *ctx,
-				unsigned target, LLVMValueRef out)
-{
-	LLVMBuilderRef builder = ctx->gallivm.builder;
-
-	/* 1D textures are allocated and used as 2D on GFX9. */
-        if (ctx->screen->b.chip_class >= GFX9 &&
-	    (target == TGSI_TEXTURE_1D_ARRAY ||
-	     target == TGSI_TEXTURE_SHADOW1D_ARRAY)) {
-		LLVMValueRef layers =
-			LLVMBuildExtractElement(builder, out,
-						LLVMConstInt(ctx->i32, 2, 0), "");
-		out = LLVMBuildInsertElement(builder, out, layers,
-					     ctx->i32_1, "");
-	}
-
-	/* Divide the number of layers by 6 to get the number of cubes. */
-	if (target == TGSI_TEXTURE_CUBE_ARRAY ||
-	    target == TGSI_TEXTURE_SHADOWCUBE_ARRAY) {
-		LLVMValueRef imm2 = LLVMConstInt(ctx->i32, 2, 0);
-
-		LLVMValueRef z = LLVMBuildExtractElement(builder, out, imm2, "");
-		z = LLVMBuildSDiv(builder, z, LLVMConstInt(ctx->i32, 6, 0), "");
-
-		out = LLVMBuildInsertElement(builder, out, z, imm2, "");
-	}
-	return out;
-}
-
-static void resq_fetch_args(
-		struct lp_build_tgsi_context * bld_base,
-		struct lp_build_emit_data * emit_data)
-{
-	struct si_shader_context *ctx = si_shader_context(bld_base);
-	const struct tgsi_full_instruction *inst = emit_data->inst;
-	const struct tgsi_full_src_register *reg = &inst->Src[0];
-
-	emit_data->dst_type = ctx->v4i32;
-
-	if (reg->Register.File == TGSI_FILE_BUFFER) {
-		emit_data->args[0] = shader_buffer_fetch_rsrc(ctx, reg);
-		emit_data->arg_count = 1;
-	} else if (inst->Memory.Texture == TGSI_TEXTURE_BUFFER) {
-		image_fetch_rsrc(bld_base, reg, false, inst->Memory.Texture,
-				 &emit_data->args[0]);
-		emit_data->arg_count = 1;
-	} else {
-		LLVMValueRef res_ptr;
-		unsigned image_target;
-
-		if (inst->Memory.Texture == TGSI_TEXTURE_3D)
-			image_target = TGSI_TEXTURE_2D_ARRAY;
-		else
-			image_target = inst->Memory.Texture;
-
-		image_fetch_rsrc(bld_base, reg, false, inst->Memory.Texture,
-				 &res_ptr);
-		set_tex_fetch_args(ctx, emit_data, image_target,
-				   res_ptr, NULL, &ctx->i32_0, 1,
-				   0xf);
-	}
-}
-
-static void resq_emit(
-		const struct lp_build_tgsi_action *action,
-		struct lp_build_tgsi_context *bld_base,
-		struct lp_build_emit_data *emit_data)
-{
-	struct si_shader_context *ctx = si_shader_context(bld_base);
-	struct gallivm_state *gallivm = &ctx->gallivm;
-	LLVMBuilderRef builder = gallivm->builder;
-	const struct tgsi_full_instruction *inst = emit_data->inst;
-	LLVMValueRef out;
-
-	if (inst->Src[0].Register.File == TGSI_FILE_BUFFER) {
-		out = LLVMBuildExtractElement(builder, emit_data->args[0],
-					      LLVMConstInt(ctx->i32, 2, 0), "");
-	} else if (inst->Memory.Texture == TGSI_TEXTURE_BUFFER) {
-		out = get_buffer_size(bld_base, emit_data->args[0]);
-	} else {
-		struct ac_image_args args;
-
-		memcpy(&args, emit_data->args, sizeof(args)); /* ugly */
-		args.opcode = ac_image_get_resinfo;
-		out = ac_build_image_opcode(&ctx->ac, &args);
-
-		out = fix_resinfo(ctx, inst->Memory.Texture, out);
-	}
-
-	emit_data->output[emit_data->chan] = out;
-}
-
-static const struct lp_build_tgsi_action tex_action;
-
-enum desc_type {
-	DESC_IMAGE,
-	DESC_BUFFER,
-	DESC_FMASK,
-	DESC_SAMPLER,
-};
-
-/**
- * Load an image view, fmask view. or sampler state descriptor.
- */
-static LLVMValueRef load_sampler_desc(struct si_shader_context *ctx,
-				      LLVMValueRef list, LLVMValueRef index,
-				      enum desc_type type)
-{
-	struct gallivm_state *gallivm = &ctx->gallivm;
-	LLVMBuilderRef builder = gallivm->builder;
-
-	switch (type) {
-	case DESC_IMAGE:
-		/* The image is at [0:7]. */
-		index = LLVMBuildMul(builder, index, LLVMConstInt(ctx->i32, 2, 0), "");
-		break;
-	case DESC_BUFFER:
-		/* The buffer is in [4:7]. */
-		index = LLVMBuildMul(builder, index, LLVMConstInt(ctx->i32, 4, 0), "");
-		index = LLVMBuildAdd(builder, index, ctx->i32_1, "");
-		list = LLVMBuildPointerCast(builder, list,
-					    si_const_array(ctx->v4i32, 0), "");
-		break;
-	case DESC_FMASK:
-		/* The FMASK is at [8:15]. */
-		index = LLVMBuildMul(builder, index, LLVMConstInt(ctx->i32, 2, 0), "");
-		index = LLVMBuildAdd(builder, index, ctx->i32_1, "");
-		break;
-	case DESC_SAMPLER:
-		/* The sampler state is at [12:15]. */
-		index = LLVMBuildMul(builder, index, LLVMConstInt(ctx->i32, 4, 0), "");
-		index = LLVMBuildAdd(builder, index, LLVMConstInt(ctx->i32, 3, 0), "");
-		list = LLVMBuildPointerCast(builder, list,
-					    si_const_array(ctx->v4i32, 0), "");
-		break;
-	}
-
-	return ac_build_indexed_load_const(&ctx->ac, list, index);
-}
-
-/* Disable anisotropic filtering if BASE_LEVEL == LAST_LEVEL.
- *
- * SI-CI:
- *   If BASE_LEVEL == LAST_LEVEL, the shader must disable anisotropic
- *   filtering manually. The driver sets img7 to a mask clearing
- *   MAX_ANISO_RATIO if BASE_LEVEL == LAST_LEVEL. The shader must do:
- *     s_and_b32 samp0, samp0, img7
- *
- * VI:
- *   The ANISO_OVERRIDE sampler field enables this fix in TA.
- */
-static LLVMValueRef sici_fix_sampler_aniso(struct si_shader_context *ctx,
-					   LLVMValueRef res, LLVMValueRef samp)
-{
-	LLVMBuilderRef builder = ctx->gallivm.builder;
-	LLVMValueRef img7, samp0;
-
-	if (ctx->screen->b.chip_class >= VI)
-		return samp;
-
-	img7 = LLVMBuildExtractElement(builder, res,
-				       LLVMConstInt(ctx->i32, 7, 0), "");
-	samp0 = LLVMBuildExtractElement(builder, samp,
-					ctx->i32_0, "");
-	samp0 = LLVMBuildAnd(builder, samp0, img7, "");
-	return LLVMBuildInsertElement(builder, samp, samp0,
-				      ctx->i32_0, "");
-}
-
-static void tex_fetch_ptrs(
-	struct lp_build_tgsi_context *bld_base,
-	struct lp_build_emit_data *emit_data,
-	LLVMValueRef *res_ptr, LLVMValueRef *samp_ptr, LLVMValueRef *fmask_ptr)
-{
-	struct si_shader_context *ctx = si_shader_context(bld_base);
-	LLVMValueRef list = LLVMGetParam(ctx->main_fn, ctx->param_samplers);
-	const struct tgsi_full_instruction *inst = emit_data->inst;
-	const struct tgsi_full_src_register *reg;
-	unsigned target = inst->Texture.Texture;
-	unsigned sampler_src;
-	LLVMValueRef index;
-
-	sampler_src = emit_data->inst->Instruction.NumSrcRegs - 1;
-	reg = &emit_data->inst->Src[sampler_src];
-
-	if (reg->Register.Indirect) {
-		index = si_get_bounded_indirect_index(ctx,
-						      &reg->Indirect,
-						      reg->Register.Index,
-						      SI_NUM_SAMPLERS);
-	} else {
-		index = LLVMConstInt(ctx->i32, reg->Register.Index, 0);
-	}
-
-	if (target == TGSI_TEXTURE_BUFFER)
-		*res_ptr = load_sampler_desc(ctx, list, index, DESC_BUFFER);
-	else
-		*res_ptr = load_sampler_desc(ctx, list, index, DESC_IMAGE);
-
-	if (samp_ptr)
-		*samp_ptr = NULL;
-	if (fmask_ptr)
-		*fmask_ptr = NULL;
-
-	if (target == TGSI_TEXTURE_2D_MSAA ||
-	    target == TGSI_TEXTURE_2D_ARRAY_MSAA) {
-		if (fmask_ptr)
-			*fmask_ptr = load_sampler_desc(ctx, list, index,
-						       DESC_FMASK);
-	} else if (target != TGSI_TEXTURE_BUFFER) {
-		if (samp_ptr) {
-			*samp_ptr = load_sampler_desc(ctx, list, index,
-						      DESC_SAMPLER);
-			*samp_ptr = sici_fix_sampler_aniso(ctx, *res_ptr, *samp_ptr);
-		}
-	}
-}
-
-static void txq_fetch_args(
-	struct lp_build_tgsi_context *bld_base,
-	struct lp_build_emit_data *emit_data)
-{
-	struct si_shader_context *ctx = si_shader_context(bld_base);
-	const struct tgsi_full_instruction *inst = emit_data->inst;
-	unsigned target = inst->Texture.Texture;
-	LLVMValueRef res_ptr;
-	LLVMValueRef address;
-
-	tex_fetch_ptrs(bld_base, emit_data, &res_ptr, NULL, NULL);
-
-	if (target == TGSI_TEXTURE_BUFFER) {
-		/* Read the size from the buffer descriptor directly. */
-		emit_data->args[0] = get_buffer_size(bld_base, res_ptr);
-		return;
-	}
-
-	/* Textures - set the mip level. */
-	address = lp_build_emit_fetch(bld_base, inst, 0, TGSI_CHAN_X);
-
-	set_tex_fetch_args(ctx, emit_data, target, res_ptr,
-			   NULL, &address, 1, 0xf);
-}
-
-static void txq_emit(const struct lp_build_tgsi_action *action,
-		     struct lp_build_tgsi_context *bld_base,
-		     struct lp_build_emit_data *emit_data)
-{
-	struct si_shader_context *ctx = si_shader_context(bld_base);
-	struct ac_image_args args;
-	unsigned target = emit_data->inst->Texture.Texture;
-
-	if (target == TGSI_TEXTURE_BUFFER) {
-		/* Just return the buffer size. */
-		emit_data->output[emit_data->chan] = emit_data->args[0];
-		return;
-	}
-
-	memcpy(&args, emit_data->args, sizeof(args)); /* ugly */
-
-	args.opcode = ac_image_get_resinfo;
-	LLVMValueRef result = ac_build_image_opcode(&ctx->ac, &args);
-
-	emit_data->output[emit_data->chan] = fix_resinfo(ctx, target, result);
-}
-
-static void tex_fetch_args(
-	struct lp_build_tgsi_context *bld_base,
-	struct lp_build_emit_data *emit_data)
-{
-	struct si_shader_context *ctx = si_shader_context(bld_base);
-	struct gallivm_state *gallivm = &ctx->gallivm;
-	const struct tgsi_full_instruction *inst = emit_data->inst;
-	unsigned opcode = inst->Instruction.Opcode;
-	unsigned target = inst->Texture.Texture;
-	LLVMValueRef coords[5], derivs[6];
-	LLVMValueRef address[16];
-	unsigned num_coords = tgsi_util_get_texture_coord_dim(target);
-	int ref_pos = tgsi_util_get_shadow_ref_src_index(target);
-	unsigned count = 0;
-	unsigned chan;
-	unsigned num_deriv_channels = 0;
-	bool has_offset = inst->Texture.NumOffsets > 0;
-	LLVMValueRef res_ptr, samp_ptr, fmask_ptr = NULL;
-	unsigned dmask = 0xf;
-
-	tex_fetch_ptrs(bld_base, emit_data, &res_ptr, &samp_ptr, &fmask_ptr);
-
-	if (target == TGSI_TEXTURE_BUFFER) {
-		emit_data->dst_type = ctx->v4f32;
-		emit_data->args[0] = res_ptr;
-		emit_data->args[1] = ctx->i32_0;
-		emit_data->args[2] = lp_build_emit_fetch(bld_base, emit_data->inst, 0, TGSI_CHAN_X);
-		emit_data->arg_count = 3;
-		return;
-	}
-
-	/* Fetch and project texture coordinates */
-	coords[3] = lp_build_emit_fetch(bld_base, emit_data->inst, 0, TGSI_CHAN_W);
-	for (chan = 0; chan < 3; chan++ ) {
-		coords[chan] = lp_build_emit_fetch(bld_base,
-						   emit_data->inst, 0,
-						   chan);
-		if (opcode == TGSI_OPCODE_TXP)
-			coords[chan] = lp_build_emit_llvm_binary(bld_base,
-								 TGSI_OPCODE_DIV,
-								 coords[chan],
-								 coords[3]);
-	}
-
-	if (opcode == TGSI_OPCODE_TXP)
-		coords[3] = bld_base->base.one;
-
-	/* Pack offsets. */
-	if (has_offset &&
-	    opcode != TGSI_OPCODE_TXF &&
-	    opcode != TGSI_OPCODE_TXF_LZ) {
-		/* The offsets are six-bit signed integers packed like this:
-		 *   X=[5:0], Y=[13:8], and Z=[21:16].
-		 */
-		LLVMValueRef offset[3], pack;
-
-		assert(inst->Texture.NumOffsets == 1);
-
-		for (chan = 0; chan < 3; chan++) {
-			offset[chan] = lp_build_emit_fetch_texoffset(bld_base,
-								     emit_data->inst, 0, chan);
-			offset[chan] = LLVMBuildAnd(gallivm->builder, offset[chan],
-						    LLVMConstInt(ctx->i32, 0x3f, 0), "");
-			if (chan)
-				offset[chan] = LLVMBuildShl(gallivm->builder, offset[chan],
-							    LLVMConstInt(ctx->i32, chan*8, 0), "");
-		}
-
-		pack = LLVMBuildOr(gallivm->builder, offset[0], offset[1], "");
-		pack = LLVMBuildOr(gallivm->builder, pack, offset[2], "");
-		address[count++] = pack;
-	}
-
-	/* Pack LOD bias value */
-	if (opcode == TGSI_OPCODE_TXB)
-		address[count++] = coords[3];
-	if (opcode == TGSI_OPCODE_TXB2)
-		address[count++] = lp_build_emit_fetch(bld_base, inst, 1, TGSI_CHAN_X);
-
-	/* Pack depth comparison value */
-	if (tgsi_is_shadow_target(target) && opcode != TGSI_OPCODE_LODQ) {
-		LLVMValueRef z;
-
-		if (target == TGSI_TEXTURE_SHADOWCUBE_ARRAY) {
-			z = lp_build_emit_fetch(bld_base, inst, 1, TGSI_CHAN_X);
-		} else {
-			assert(ref_pos >= 0);
-			z = coords[ref_pos];
-		}
-
-		/* TC-compatible HTILE promotes Z16 and Z24 to Z32_FLOAT,
-		 * so the depth comparison value isn't clamped for Z16 and
-		 * Z24 anymore. Do it manually here.
-		 *
-		 * It's unnecessary if the original texture format was
-		 * Z32_FLOAT, but we don't know that here.
-		 */
-		if (ctx->screen->b.chip_class == VI)
-			z = ac_build_clamp(&ctx->ac, z);
-
-		address[count++] = z;
-	}
-
-	/* Pack user derivatives */
-	if (opcode == TGSI_OPCODE_TXD) {
-		int param, num_src_deriv_channels, num_dst_deriv_channels;
-
-		switch (target) {
-		case TGSI_TEXTURE_3D:
-			num_src_deriv_channels = 3;
-			num_dst_deriv_channels = 3;
-			num_deriv_channels = 3;
-			break;
-		case TGSI_TEXTURE_2D:
-		case TGSI_TEXTURE_SHADOW2D:
-		case TGSI_TEXTURE_RECT:
-		case TGSI_TEXTURE_SHADOWRECT:
-		case TGSI_TEXTURE_2D_ARRAY:
-		case TGSI_TEXTURE_SHADOW2D_ARRAY:
-			num_src_deriv_channels = 2;
-			num_dst_deriv_channels = 2;
-			num_deriv_channels = 2;
-			break;
-		case TGSI_TEXTURE_CUBE:
-		case TGSI_TEXTURE_SHADOWCUBE:
-		case TGSI_TEXTURE_CUBE_ARRAY:
-		case TGSI_TEXTURE_SHADOWCUBE_ARRAY:
-			/* Cube derivatives will be converted to 2D. */
-			num_src_deriv_channels = 3;
-			num_dst_deriv_channels = 3;
-			num_deriv_channels = 2;
-			break;
-		case TGSI_TEXTURE_1D:
-		case TGSI_TEXTURE_SHADOW1D:
-		case TGSI_TEXTURE_1D_ARRAY:
-		case TGSI_TEXTURE_SHADOW1D_ARRAY:
-			num_src_deriv_channels = 1;
-
-			/* 1D textures are allocated and used as 2D on GFX9. */
-			if (ctx->screen->b.chip_class >= GFX9) {
-				num_dst_deriv_channels = 2;
-				num_deriv_channels = 2;
-			} else {
-				num_dst_deriv_channels = 1;
-				num_deriv_channels = 1;
-			}
-			break;
-		default:
-			unreachable("invalid target");
-		}
-
-		for (param = 0; param < 2; param++) {
-			for (chan = 0; chan < num_src_deriv_channels; chan++)
-				derivs[param * num_dst_deriv_channels + chan] =
-					lp_build_emit_fetch(bld_base, inst, param+1, chan);
-
-			/* Fill in the rest with zeros. */
-			for (chan = num_src_deriv_channels;
-			     chan < num_dst_deriv_channels; chan++)
-				derivs[param * num_dst_deriv_channels + chan] =
-					bld_base->base.zero;
-		}
-	}
-
-	if (target == TGSI_TEXTURE_CUBE ||
-	    target == TGSI_TEXTURE_CUBE_ARRAY ||
-	    target == TGSI_TEXTURE_SHADOWCUBE ||
-	    target == TGSI_TEXTURE_SHADOWCUBE_ARRAY)
-		ac_prepare_cube_coords(&ctx->ac,
-				       opcode == TGSI_OPCODE_TXD,
-				       target == TGSI_TEXTURE_CUBE_ARRAY ||
-				       target == TGSI_TEXTURE_SHADOWCUBE_ARRAY,
-				       coords, derivs);
-
-	if (opcode == TGSI_OPCODE_TXD)
-		for (int i = 0; i < num_deriv_channels * 2; i++)
-			address[count++] = derivs[i];
-
-	/* Pack texture coordinates */
-	address[count++] = coords[0];
-	if (num_coords > 1)
-		address[count++] = coords[1];
-	if (num_coords > 2)
-		address[count++] = coords[2];
-
-	/* 1D textures are allocated and used as 2D on GFX9. */
-	if (ctx->screen->b.chip_class >= GFX9) {
-		LLVMValueRef filler;
-
-		/* Use 0.5, so that we don't sample the border color. */
-		if (opcode == TGSI_OPCODE_TXF)
-			filler = ctx->i32_0;
-		else
-			filler = LLVMConstReal(ctx->f32, 0.5);
-
-		if (target == TGSI_TEXTURE_1D ||
-		    target == TGSI_TEXTURE_SHADOW1D) {
-			address[count++] = filler;
-		} else if (target == TGSI_TEXTURE_1D_ARRAY ||
-			   target == TGSI_TEXTURE_SHADOW1D_ARRAY) {
-			address[count] = address[count - 1];
-			address[count - 1] = filler;
-			count++;
-		}
-	}
-
-	/* Pack LOD or sample index */
-	if (opcode == TGSI_OPCODE_TXL || opcode == TGSI_OPCODE_TXF)
-		address[count++] = coords[3];
-	else if (opcode == TGSI_OPCODE_TXL2)
-		address[count++] = lp_build_emit_fetch(bld_base, inst, 1, TGSI_CHAN_X);
-
-	if (count > 16) {
-		assert(!"Cannot handle more than 16 texture address parameters");
-		count = 16;
-	}
-
-	for (chan = 0; chan < count; chan++ ) {
-		address[chan] = LLVMBuildBitCast(gallivm->builder,
-						 address[chan], ctx->i32, "");
-	}
-
-	/* Adjust the sample index according to FMASK.
-	 *
-	 * For uncompressed MSAA surfaces, FMASK should return 0x76543210,
-	 * which is the identity mapping. Each nibble says which physical sample
-	 * should be fetched to get that sample.
-	 *
-	 * For example, 0x11111100 means there are only 2 samples stored and
-	 * the second sample covers 3/4 of the pixel. When reading samples 0
-	 * and 1, return physical sample 0 (determined by the first two 0s
-	 * in FMASK), otherwise return physical sample 1.
-	 *
-	 * The sample index should be adjusted as follows:
-	 *   sample_index = (fmask >> (sample_index * 4)) & 0xF;
-	 */
-	if (target == TGSI_TEXTURE_2D_MSAA ||
-	    target == TGSI_TEXTURE_2D_ARRAY_MSAA) {
-		struct lp_build_emit_data txf_emit_data = *emit_data;
-		LLVMValueRef txf_address[4];
-		/* We only need .xy for non-arrays, and .xyz for arrays. */
-		unsigned txf_count = target == TGSI_TEXTURE_2D_MSAA ? 2 : 3;
-		struct tgsi_full_instruction inst = {};
-
-		memcpy(txf_address, address, sizeof(txf_address));
-
-		/* Read FMASK using TXF_LZ. */
-		inst.Instruction.Opcode = TGSI_OPCODE_TXF_LZ;
-		inst.Texture.Texture = target;
-		txf_emit_data.inst = &inst;
-		txf_emit_data.chan = 0;
-		set_tex_fetch_args(ctx, &txf_emit_data,
-				   target, fmask_ptr, NULL,
-				   txf_address, txf_count, 0xf);
-		build_tex_intrinsic(&tex_action, bld_base, &txf_emit_data);
-
-		/* Initialize some constants. */
-		LLVMValueRef four = LLVMConstInt(ctx->i32, 4, 0);
-		LLVMValueRef F = LLVMConstInt(ctx->i32, 0xF, 0);
-
-		/* Apply the formula. */
-		LLVMValueRef fmask =
-			LLVMBuildExtractElement(gallivm->builder,
-						txf_emit_data.output[0],
-						ctx->i32_0, "");
-
-		unsigned sample_chan = txf_count; /* the sample index is last */
-
-		LLVMValueRef sample_index4 =
-			LLVMBuildMul(gallivm->builder, address[sample_chan], four, "");
-
-		LLVMValueRef shifted_fmask =
-			LLVMBuildLShr(gallivm->builder, fmask, sample_index4, "");
-
-		LLVMValueRef final_sample =
-			LLVMBuildAnd(gallivm->builder, shifted_fmask, F, "");
-
-		/* Don't rewrite the sample index if WORD1.DATA_FORMAT of the FMASK
-		 * resource descriptor is 0 (invalid),
-		 */
-		LLVMValueRef fmask_desc =
-			LLVMBuildBitCast(gallivm->builder, fmask_ptr,
-					 ctx->v8i32, "");
-
-		LLVMValueRef fmask_word1 =
-			LLVMBuildExtractElement(gallivm->builder, fmask_desc,
-						ctx->i32_1, "");
-
-		LLVMValueRef word1_is_nonzero =
-			LLVMBuildICmp(gallivm->builder, LLVMIntNE,
-				      fmask_word1, ctx->i32_0, "");
-
-		/* Replace the MSAA sample index. */
-		address[sample_chan] =
-			LLVMBuildSelect(gallivm->builder, word1_is_nonzero,
-					final_sample, address[sample_chan], "");
-	}
-
-	if (opcode == TGSI_OPCODE_TXF ||
-	    opcode == TGSI_OPCODE_TXF_LZ) {
-		/* add tex offsets */
-		if (inst->Texture.NumOffsets) {
-			struct lp_build_context *uint_bld = &bld_base->uint_bld;
-			const struct tgsi_texture_offset *off = inst->TexOffsets;
-
-			assert(inst->Texture.NumOffsets == 1);
-
-			switch (target) {
-			case TGSI_TEXTURE_3D:
-				address[2] = lp_build_add(uint_bld, address[2],
-						ctx->imms[off->Index * TGSI_NUM_CHANNELS + off->SwizzleZ]);
-				/* fall through */
-			case TGSI_TEXTURE_2D:
-			case TGSI_TEXTURE_SHADOW2D:
-			case TGSI_TEXTURE_RECT:
-			case TGSI_TEXTURE_SHADOWRECT:
-			case TGSI_TEXTURE_2D_ARRAY:
-			case TGSI_TEXTURE_SHADOW2D_ARRAY:
-				address[1] =
-					lp_build_add(uint_bld, address[1],
-						ctx->imms[off->Index * TGSI_NUM_CHANNELS + off->SwizzleY]);
-				/* fall through */
-			case TGSI_TEXTURE_1D:
-			case TGSI_TEXTURE_SHADOW1D:
-			case TGSI_TEXTURE_1D_ARRAY:
-			case TGSI_TEXTURE_SHADOW1D_ARRAY:
-				address[0] =
-					lp_build_add(uint_bld, address[0],
-						ctx->imms[off->Index * TGSI_NUM_CHANNELS + off->SwizzleX]);
-				break;
-				/* texture offsets do not apply to other texture targets */
-			}
-		}
-	}
-
-	if (opcode == TGSI_OPCODE_TG4) {
-		unsigned gather_comp = 0;
-
-		/* DMASK was repurposed for GATHER4. 4 components are always
-		 * returned and DMASK works like a swizzle - it selects
-		 * the component to fetch. The only valid DMASK values are
-		 * 1=red, 2=green, 4=blue, 8=alpha. (e.g. 1 returns
-		 * (red,red,red,red) etc.) The ISA document doesn't mention
-		 * this.
-		 */
-
-		/* Get the component index from src1.x for Gather4. */
-		if (!tgsi_is_shadow_target(target)) {
-			LLVMValueRef comp_imm;
-			struct tgsi_src_register src1 = inst->Src[1].Register;
-
-			assert(src1.File == TGSI_FILE_IMMEDIATE);
-
-			comp_imm = ctx->imms[src1.Index * TGSI_NUM_CHANNELS + src1.SwizzleX];
-			gather_comp = LLVMConstIntGetZExtValue(comp_imm);
-			gather_comp = CLAMP(gather_comp, 0, 3);
-		}
-
-		dmask = 1 << gather_comp;
-	}
-
-	set_tex_fetch_args(ctx, emit_data, target, res_ptr,
-			   samp_ptr, address, count, dmask);
-}
-
-/* Gather4 should follow the same rules as bilinear filtering, but the hardware
- * incorrectly forces nearest filtering if the texture format is integer.
- * The only effect it has on Gather4, which always returns 4 texels for
- * bilinear filtering, is that the final coordinates are off by 0.5 of
- * the texel size.
- *
- * The workaround is to subtract 0.5 from the unnormalized coordinates,
- * or (0.5 / size) from the normalized coordinates.
- */
-static void si_lower_gather4_integer(struct si_shader_context *ctx,
-				     struct ac_image_args *args,
-				     unsigned target)
-{
-	LLVMBuilderRef builder = ctx->gallivm.builder;
-	LLVMValueRef coord = args->addr;
-	LLVMValueRef half_texel[2];
-	/* Texture coordinates start after:
-	 *   {offset, bias, z-compare, derivatives}
-	 * Only the offset and z-compare can occur here.
-	 */
-	unsigned coord_vgpr_index = (int)args->offset + (int)args->compare;
-	int c;
-
-	if (target == TGSI_TEXTURE_RECT ||
-	    target == TGSI_TEXTURE_SHADOWRECT) {
-		half_texel[0] = half_texel[1] = LLVMConstReal(ctx->f32, -0.5);
-	} else {
-		struct tgsi_full_instruction txq_inst = {};
-		struct lp_build_emit_data txq_emit_data = {};
-
-		/* Query the texture size. */
-		txq_inst.Texture.Texture = target;
-		txq_emit_data.inst = &txq_inst;
-		txq_emit_data.dst_type = ctx->v4i32;
-		set_tex_fetch_args(ctx, &txq_emit_data, target,
-				   args->resource, NULL, &ctx->i32_0,
-				   1, 0xf);
-		txq_emit(NULL, &ctx->bld_base, &txq_emit_data);
-
-		/* Compute -0.5 / size. */
-		for (c = 0; c < 2; c++) {
-			half_texel[c] =
-				LLVMBuildExtractElement(builder, txq_emit_data.output[0],
-							LLVMConstInt(ctx->i32, c, 0), "");
-			half_texel[c] = LLVMBuildUIToFP(builder, half_texel[c], ctx->f32, "");
-			half_texel[c] =
-				lp_build_emit_llvm_unary(&ctx->bld_base,
-							 TGSI_OPCODE_RCP, half_texel[c]);
-			half_texel[c] = LLVMBuildFMul(builder, half_texel[c],
-						      LLVMConstReal(ctx->f32, -0.5), "");
-		}
-	}
-
-	for (c = 0; c < 2; c++) {
-		LLVMValueRef tmp;
-		LLVMValueRef index = LLVMConstInt(ctx->i32, coord_vgpr_index + c, 0);
-
-		tmp = LLVMBuildExtractElement(builder, coord, index, "");
-		tmp = LLVMBuildBitCast(builder, tmp, ctx->f32, "");
-		tmp = LLVMBuildFAdd(builder, tmp, half_texel[c], "");
-		tmp = LLVMBuildBitCast(builder, tmp, ctx->i32, "");
-		coord = LLVMBuildInsertElement(builder, coord, tmp, index, "");
-	}
-
-	args->addr = coord;
-}
-
-static void build_tex_intrinsic(const struct lp_build_tgsi_action *action,
-				struct lp_build_tgsi_context *bld_base,
-				struct lp_build_emit_data *emit_data)
-{
-	struct si_shader_context *ctx = si_shader_context(bld_base);
-	const struct tgsi_full_instruction *inst = emit_data->inst;
-	struct ac_image_args args;
-	unsigned opcode = inst->Instruction.Opcode;
-	unsigned target = inst->Texture.Texture;
-
-	if (target == TGSI_TEXTURE_BUFFER) {
-		emit_data->output[emit_data->chan] =
-			ac_build_buffer_load_format(&ctx->ac,
-						    emit_data->args[0],
-						    emit_data->args[2],
-						    emit_data->args[1],
-						    true);
-		return;
-	}
-
-	memcpy(&args, emit_data->args, sizeof(args)); /* ugly */
-
-	args.opcode = ac_image_sample;
-	args.compare = tgsi_is_shadow_target(target);
-	args.offset = inst->Texture.NumOffsets > 0;
-
-	switch (opcode) {
-	case TGSI_OPCODE_TXF:
-	case TGSI_OPCODE_TXF_LZ:
-		args.opcode = opcode == TGSI_OPCODE_TXF_LZ ||
-			      target == TGSI_TEXTURE_2D_MSAA ||
-			      target == TGSI_TEXTURE_2D_ARRAY_MSAA ?
-				      ac_image_load : ac_image_load_mip;
-		args.compare = false;
-		args.offset = false;
-		break;
-	case TGSI_OPCODE_LODQ:
-		args.opcode = ac_image_get_lod;
-		args.compare = false;
-		args.offset = false;
-		break;
-	case TGSI_OPCODE_TEX:
-	case TGSI_OPCODE_TEX2:
-	case TGSI_OPCODE_TXP:
-		if (ctx->type != PIPE_SHADER_FRAGMENT)
-			args.level_zero = true;
-		break;
-	case TGSI_OPCODE_TEX_LZ:
-		args.level_zero = true;
-		break;
-	case TGSI_OPCODE_TXB:
-	case TGSI_OPCODE_TXB2:
-		assert(ctx->type == PIPE_SHADER_FRAGMENT);
-		args.bias = true;
-		break;
-	case TGSI_OPCODE_TXL:
-	case TGSI_OPCODE_TXL2:
-		args.lod = true;
-		break;
-	case TGSI_OPCODE_TXD:
-		args.deriv = true;
-		break;
-	case TGSI_OPCODE_TG4:
-		args.opcode = ac_image_gather4;
-		args.level_zero = true;
-		break;
-	default:
-		assert(0);
-		return;
-	}
-
-	/* The hardware needs special lowering for Gather4 with integer formats. */
-	if (ctx->screen->b.chip_class <= VI &&
-	    opcode == TGSI_OPCODE_TG4) {
-		struct tgsi_shader_info *info = &ctx->shader->selector->info;
-		/* This will also work with non-constant indexing because of how
-		 * glsl_to_tgsi works and we intent to preserve that behavior.
-		 */
-		const unsigned src_idx = 2;
-		unsigned sampler = inst->Src[src_idx].Register.Index;
-
-		assert(inst->Src[src_idx].Register.File == TGSI_FILE_SAMPLER);
-
-		if (info->sampler_type[sampler] == TGSI_RETURN_TYPE_SINT ||
-		    info->sampler_type[sampler] == TGSI_RETURN_TYPE_UINT)
-			si_lower_gather4_integer(ctx, &args, target);
-	}
-
-	emit_data->output[emit_data->chan] =
-		ac_build_image_opcode(&ctx->ac, &args);
-}
-
-static void si_llvm_emit_txqs(
-	const struct lp_build_tgsi_action *action,
-	struct lp_build_tgsi_context *bld_base,
-	struct lp_build_emit_data *emit_data)
-{
-	struct si_shader_context *ctx = si_shader_context(bld_base);
-	struct gallivm_state *gallivm = &ctx->gallivm;
-	LLVMBuilderRef builder = gallivm->builder;
-	LLVMValueRef res, samples;
-	LLVMValueRef res_ptr, samp_ptr, fmask_ptr = NULL;
-
-	tex_fetch_ptrs(bld_base, emit_data, &res_ptr, &samp_ptr, &fmask_ptr);
-
-
-	/* Read the samples from the descriptor directly. */
-	res = LLVMBuildBitCast(builder, res_ptr, ctx->v8i32, "");
-	samples = LLVMBuildExtractElement(
-		builder, res,
-		LLVMConstInt(ctx->i32, 3, 0), "");
-	samples = LLVMBuildLShr(builder, samples,
-				LLVMConstInt(ctx->i32, 16, 0), "");
-	samples = LLVMBuildAnd(builder, samples,
-			       LLVMConstInt(ctx->i32, 0xf, 0), "");
-	samples = LLVMBuildShl(builder, ctx->i32_1,
-			       samples, "");
-
-	emit_data->output[emit_data->chan] = samples;
-}
-
 static void si_llvm_emit_ddxy(
 	const struct lp_build_tgsi_action *action,
 	struct lp_build_tgsi_context *bld_base,
@@ -5693,11 +3905,6 @@ static void si_llvm_emit_barrier(const struct lp_build_tgsi_action *action,
 			   ctx->voidt, NULL, 0, LP_FUNC_ATTR_CONVERGENT);
 }
 
-static const struct lp_build_tgsi_action tex_action = {
-	.fetch_args = tex_fetch_args,
-	.emit = build_tex_intrinsic,
-};
-
 static const struct lp_build_tgsi_action interp_action = {
 	.fetch_args = interp_fetch_args,
 	.emit = build_interp_intrinsic,
@@ -7150,7 +5357,6 @@ static void si_init_shader_ctx(struct si_shader_context *ctx,
 			       LLVMTargetMachineRef tm)
 {
 	struct lp_build_tgsi_context *bld_base;
-	struct lp_build_tgsi_action tmpl = {};
 
 	si_llvm_context_init(ctx, sscreen, tm);
 
@@ -7161,53 +5367,6 @@ static void si_init_shader_ctx(struct si_shader_context *ctx,
 	bld_base->op_actions[TGSI_OPCODE_INTERP_SAMPLE] = interp_action;
 	bld_base->op_actions[TGSI_OPCODE_INTERP_OFFSET] = interp_action;
 
-	bld_base->op_actions[TGSI_OPCODE_TEX] = tex_action;
-	bld_base->op_actions[TGSI_OPCODE_TEX_LZ] = tex_action;
-	bld_base->op_actions[TGSI_OPCODE_TEX2] = tex_action;
-	bld_base->op_actions[TGSI_OPCODE_TXB] = tex_action;
-	bld_base->op_actions[TGSI_OPCODE_TXB2] = tex_action;
-	bld_base->op_actions[TGSI_OPCODE_TXD] = tex_action;
-	bld_base->op_actions[TGSI_OPCODE_TXF] = tex_action;
-	bld_base->op_actions[TGSI_OPCODE_TXF_LZ] = tex_action;
-	bld_base->op_actions[TGSI_OPCODE_TXL] = tex_action;
-	bld_base->op_actions[TGSI_OPCODE_TXL2] = tex_action;
-	bld_base->op_actions[TGSI_OPCODE_TXP] = tex_action;
-	bld_base->op_actions[TGSI_OPCODE_TXQ].fetch_args = txq_fetch_args;
-	bld_base->op_actions[TGSI_OPCODE_TXQ].emit = txq_emit;
-	bld_base->op_actions[TGSI_OPCODE_TG4] = tex_action;
-	bld_base->op_actions[TGSI_OPCODE_LODQ] = tex_action;
-	bld_base->op_actions[TGSI_OPCODE_TXQS].emit = si_llvm_emit_txqs;
-
-	bld_base->op_actions[TGSI_OPCODE_LOAD].fetch_args = load_fetch_args;
-	bld_base->op_actions[TGSI_OPCODE_LOAD].emit = load_emit;
-	bld_base->op_actions[TGSI_OPCODE_STORE].fetch_args = store_fetch_args;
-	bld_base->op_actions[TGSI_OPCODE_STORE].emit = store_emit;
-	bld_base->op_actions[TGSI_OPCODE_RESQ].fetch_args = resq_fetch_args;
-	bld_base->op_actions[TGSI_OPCODE_RESQ].emit = resq_emit;
-
-	tmpl.fetch_args = atomic_fetch_args;
-	tmpl.emit = atomic_emit;
-	bld_base->op_actions[TGSI_OPCODE_ATOMUADD] = tmpl;
-	bld_base->op_actions[TGSI_OPCODE_ATOMUADD].intr_name = "add";
-	bld_base->op_actions[TGSI_OPCODE_ATOMXCHG] = tmpl;
-	bld_base->op_actions[TGSI_OPCODE_ATOMXCHG].intr_name = "swap";
-	bld_base->op_actions[TGSI_OPCODE_ATOMCAS] = tmpl;
-	bld_base->op_actions[TGSI_OPCODE_ATOMCAS].intr_name = "cmpswap";
-	bld_base->op_actions[TGSI_OPCODE_ATOMAND] = tmpl;
-	bld_base->op_actions[TGSI_OPCODE_ATOMAND].intr_name = "and";
-	bld_base->op_actions[TGSI_OPCODE_ATOMOR] = tmpl;
-	bld_base->op_actions[TGSI_OPCODE_ATOMOR].intr_name = "or";
-	bld_base->op_actions[TGSI_OPCODE_ATOMXOR] = tmpl;
-	bld_base->op_actions[TGSI_OPCODE_ATOMXOR].intr_name = "xor";
-	bld_base->op_actions[TGSI_OPCODE_ATOMUMIN] = tmpl;
-	bld_base->op_actions[TGSI_OPCODE_ATOMUMIN].intr_name = "umin";
-	bld_base->op_actions[TGSI_OPCODE_ATOMUMAX] = tmpl;
-	bld_base->op_actions[TGSI_OPCODE_ATOMUMAX].intr_name = "umax";
-	bld_base->op_actions[TGSI_OPCODE_ATOMIMIN] = tmpl;
-	bld_base->op_actions[TGSI_OPCODE_ATOMIMIN].intr_name = "smin";
-	bld_base->op_actions[TGSI_OPCODE_ATOMIMAX] = tmpl;
-	bld_base->op_actions[TGSI_OPCODE_ATOMIMAX].intr_name = "smax";
-
 	bld_base->op_actions[TGSI_OPCODE_MEMBAR].emit = membar_emit;
 
 	bld_base->op_actions[TGSI_OPCODE_CLOCK].emit = clock_emit;
diff --git a/src/gallium/drivers/radeonsi/si_shader_internal.h b/src/gallium/drivers/radeonsi/si_shader_internal.h
index 82a672f5092..69e6dfcf920 100644
--- a/src/gallium/drivers/radeonsi/si_shader_internal.h
+++ b/src/gallium/drivers/radeonsi/si_shader_internal.h
@@ -301,5 +301,6 @@ LLVMValueRef si_get_bounded_indirect_index(struct si_shader_context *ctx,
 LLVMTypeRef si_const_array(LLVMTypeRef elem_type, int num_elements);
 
 void si_shader_context_init_alu(struct lp_build_tgsi_context *bld_base);
+void si_shader_context_init_mem(struct si_shader_context *ctx);
 
 #endif
diff --git a/src/gallium/drivers/radeonsi/si_shader_tgsi_mem.c b/src/gallium/drivers/radeonsi/si_shader_tgsi_mem.c
new file mode 100644
index 00000000000..13b46949d01
--- /dev/null
+++ b/src/gallium/drivers/radeonsi/si_shader_tgsi_mem.c
@@ -0,0 +1,1883 @@
+/*
+ * Copyright 2017 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "si_shader_internal.h"
+#include "si_pipe.h"
+#include "sid.h"
+#include "gallivm/lp_bld_arit.h"
+#include "gallivm/lp_bld_gather.h"
+#include "gallivm/lp_bld_intr.h"
+#include "tgsi/tgsi_build.h"
+#include "tgsi/tgsi_parse.h"
+#include "tgsi/tgsi_util.h"
+
+static void build_tex_intrinsic(const struct lp_build_tgsi_action *action,
+				struct lp_build_tgsi_context *bld_base,
+				struct lp_build_emit_data *emit_data);
+
+static const struct lp_build_tgsi_action tex_action;
+
+enum desc_type {
+	DESC_IMAGE,
+	DESC_BUFFER,
+	DESC_FMASK,
+	DESC_SAMPLER,
+};
+
+/**
+ * Given a v8i32 resource descriptor for a buffer, extract the size of the
+ * buffer in number of elements and return it as an i32.
+ */
+static LLVMValueRef get_buffer_size(
+	struct lp_build_tgsi_context *bld_base,
+	LLVMValueRef descriptor)
+{
+	struct si_shader_context *ctx = si_shader_context(bld_base);
+	struct gallivm_state *gallivm = &ctx->gallivm;
+	LLVMBuilderRef builder = gallivm->builder;
+	LLVMValueRef size =
+		LLVMBuildExtractElement(builder, descriptor,
+					LLVMConstInt(ctx->i32, 2, 0), "");
+
+	if (ctx->screen->b.chip_class == VI) {
+		/* On VI, the descriptor contains the size in bytes,
+		 * but TXQ must return the size in elements.
+		 * The stride is always non-zero for resources using TXQ.
+		 */
+		LLVMValueRef stride =
+			LLVMBuildExtractElement(builder, descriptor,
+						ctx->i32_1, "");
+		stride = LLVMBuildLShr(builder, stride,
+				       LLVMConstInt(ctx->i32, 16, 0), "");
+		stride = LLVMBuildAnd(builder, stride,
+				      LLVMConstInt(ctx->i32, 0x3FFF, 0), "");
+
+		size = LLVMBuildUDiv(builder, size, stride, "");
+	}
+
+	return size;
+}
+
+static LLVMValueRef
+shader_buffer_fetch_rsrc(struct si_shader_context *ctx,
+			 const struct tgsi_full_src_register *reg)
+{
+	LLVMValueRef index;
+	LLVMValueRef rsrc_ptr = LLVMGetParam(ctx->main_fn,
+					     ctx->param_shader_buffers);
+
+	if (!reg->Register.Indirect)
+		index = LLVMConstInt(ctx->i32, reg->Register.Index, 0);
+	else
+		index = si_get_bounded_indirect_index(ctx, &reg->Indirect,
+						      reg->Register.Index,
+						      SI_NUM_SHADER_BUFFERS);
+
+	return ac_build_indexed_load_const(&ctx->ac, rsrc_ptr, index);
+}
+
+static bool tgsi_is_array_sampler(unsigned target)
+{
+	return target == TGSI_TEXTURE_1D_ARRAY ||
+	       target == TGSI_TEXTURE_SHADOW1D_ARRAY ||
+	       target == TGSI_TEXTURE_2D_ARRAY ||
+	       target == TGSI_TEXTURE_SHADOW2D_ARRAY ||
+	       target == TGSI_TEXTURE_CUBE_ARRAY ||
+	       target == TGSI_TEXTURE_SHADOWCUBE_ARRAY ||
+	       target == TGSI_TEXTURE_2D_ARRAY_MSAA;
+}
+
+static bool tgsi_is_array_image(unsigned target)
+{
+	return target == TGSI_TEXTURE_3D ||
+	       target == TGSI_TEXTURE_CUBE ||
+	       target == TGSI_TEXTURE_1D_ARRAY ||
+	       target == TGSI_TEXTURE_2D_ARRAY ||
+	       target == TGSI_TEXTURE_CUBE_ARRAY ||
+	       target == TGSI_TEXTURE_2D_ARRAY_MSAA;
+}
+
+/**
+ * Given a 256-bit resource descriptor, force the DCC enable bit to off.
+ *
+ * At least on Tonga, executing image stores on images with DCC enabled and
+ * non-trivial can eventually lead to lockups. This can occur when an
+ * application binds an image as read-only but then uses a shader that writes
+ * to it. The OpenGL spec allows almost arbitrarily bad behavior (including
+ * program termination) in this case, but it doesn't cost much to be a bit
+ * nicer: disabling DCC in the shader still leads to undefined results but
+ * avoids the lockup.
+ */
+static LLVMValueRef force_dcc_off(struct si_shader_context *ctx,
+				  LLVMValueRef rsrc)
+{
+	if (ctx->screen->b.chip_class <= CIK) {
+		return rsrc;
+	} else {
+		LLVMBuilderRef builder = ctx->gallivm.builder;
+		LLVMValueRef i32_6 = LLVMConstInt(ctx->i32, 6, 0);
+		LLVMValueRef i32_C = LLVMConstInt(ctx->i32, C_008F28_COMPRESSION_EN, 0);
+		LLVMValueRef tmp;
+
+		tmp = LLVMBuildExtractElement(builder, rsrc, i32_6, "");
+		tmp = LLVMBuildAnd(builder, tmp, i32_C, "");
+		return LLVMBuildInsertElement(builder, rsrc, tmp, i32_6, "");
+	}
+}
+
+static LLVMValueRef load_image_desc(struct si_shader_context *ctx,
+				    LLVMValueRef list, LLVMValueRef index,
+				    unsigned target)
+{
+	LLVMBuilderRef builder = ctx->gallivm.builder;
+
+	if (target == TGSI_TEXTURE_BUFFER) {
+		index = LLVMBuildMul(builder, index,
+				     LLVMConstInt(ctx->i32, 2, 0), "");
+		index = LLVMBuildAdd(builder, index,
+				     ctx->i32_1, "");
+		list = LLVMBuildPointerCast(builder, list,
+					    si_const_array(ctx->v4i32, 0), "");
+	}
+
+	return ac_build_indexed_load_const(&ctx->ac, list, index);
+}
+
+/**
+ * Load the resource descriptor for \p image.
+ */
+static void
+image_fetch_rsrc(
+	struct lp_build_tgsi_context *bld_base,
+	const struct tgsi_full_src_register *image,
+	bool is_store, unsigned target,
+	LLVMValueRef *rsrc)
+{
+	struct si_shader_context *ctx = si_shader_context(bld_base);
+	LLVMValueRef rsrc_ptr = LLVMGetParam(ctx->main_fn,
+					     ctx->param_images);
+	LLVMValueRef index;
+	bool dcc_off = is_store;
+
+	assert(image->Register.File == TGSI_FILE_IMAGE);
+
+	if (!image->Register.Indirect) {
+		const struct tgsi_shader_info *info = bld_base->info;
+		unsigned images_writemask = info->images_store |
+					    info->images_atomic;
+
+		index = LLVMConstInt(ctx->i32, image->Register.Index, 0);
+
+		if (images_writemask & (1 << image->Register.Index))
+			dcc_off = true;
+	} else {
+		/* From the GL_ARB_shader_image_load_store extension spec:
+		 *
+		 *    If a shader performs an image load, store, or atomic
+		 *    operation using an image variable declared as an array,
+		 *    and if the index used to select an individual element is
+		 *    negative or greater than or equal to the size of the
+		 *    array, the results of the operation are undefined but may
+		 *    not lead to termination.
+		 */
+		index = si_get_bounded_indirect_index(ctx, &image->Indirect,
+						      image->Register.Index,
+						      SI_NUM_IMAGES);
+	}
+
+	*rsrc = load_image_desc(ctx, rsrc_ptr, index, target);
+	if (dcc_off && target != TGSI_TEXTURE_BUFFER)
+		*rsrc = force_dcc_off(ctx, *rsrc);
+}
+
+static LLVMValueRef image_fetch_coords(
+		struct lp_build_tgsi_context *bld_base,
+		const struct tgsi_full_instruction *inst,
+		unsigned src, LLVMValueRef desc)
+{
+	struct si_shader_context *ctx = si_shader_context(bld_base);
+	struct gallivm_state *gallivm = &ctx->gallivm;
+	LLVMBuilderRef builder = gallivm->builder;
+	unsigned target = inst->Memory.Texture;
+	unsigned num_coords = tgsi_util_get_texture_coord_dim(target);
+	LLVMValueRef coords[4];
+	LLVMValueRef tmp;
+	int chan;
+
+	for (chan = 0; chan < num_coords; ++chan) {
+		tmp = lp_build_emit_fetch(bld_base, inst, src, chan);
+		tmp = LLVMBuildBitCast(builder, tmp, ctx->i32, "");
+		coords[chan] = tmp;
+	}
+
+	if (ctx->screen->b.chip_class >= GFX9) {
+		/* 1D textures are allocated and used as 2D on GFX9. */
+		if (target == TGSI_TEXTURE_1D) {
+			coords[1] = ctx->i32_0;
+			num_coords++;
+		} else if (target == TGSI_TEXTURE_1D_ARRAY) {
+			coords[2] = coords[1];
+			coords[1] = ctx->i32_0;
+			num_coords++;
+		} else if (target == TGSI_TEXTURE_2D) {
+			/* The hw can't bind a slice of a 3D image as a 2D
+			 * image, because it ignores BASE_ARRAY if the target
+			 * is 3D. The workaround is to read BASE_ARRAY and set
+			 * it as the 3rd address operand for all 2D images.
+			 */
+			LLVMValueRef first_layer, const5, mask;
+
+			const5 = LLVMConstInt(ctx->i32, 5, 0);
+			mask = LLVMConstInt(ctx->i32, S_008F24_BASE_ARRAY(~0), 0);
+			first_layer = LLVMBuildExtractElement(builder, desc, const5, "");
+			first_layer = LLVMBuildAnd(builder, first_layer, mask, "");
+
+			coords[2] = first_layer;
+			num_coords++;
+		}
+	}
+
+	if (num_coords == 1)
+		return coords[0];
+
+	if (num_coords == 3) {
+		/* LLVM has difficulties lowering 3-element vectors. */
+		coords[3] = bld_base->uint_bld.undef;
+		num_coords = 4;
+	}
+
+	return lp_build_gather_values(gallivm, coords, num_coords);
+}
+
+/**
+ * Append the extra mode bits that are used by image load and store.
+ */
+static void image_append_args(
+		struct si_shader_context *ctx,
+		struct lp_build_emit_data * emit_data,
+		unsigned target,
+		bool atomic,
+		bool force_glc)
+{
+	const struct tgsi_full_instruction *inst = emit_data->inst;
+	LLVMValueRef i1false = LLVMConstInt(ctx->i1, 0, 0);
+	LLVMValueRef i1true = LLVMConstInt(ctx->i1, 1, 0);
+	LLVMValueRef r128 = i1false;
+	LLVMValueRef da = tgsi_is_array_image(target) ? i1true : i1false;
+	LLVMValueRef glc =
+		force_glc ||
+		inst->Memory.Qualifier & (TGSI_MEMORY_COHERENT | TGSI_MEMORY_VOLATILE) ?
+		i1true : i1false;
+	LLVMValueRef slc = i1false;
+	LLVMValueRef lwe = i1false;
+
+	if (atomic || (HAVE_LLVM <= 0x0309)) {
+		emit_data->args[emit_data->arg_count++] = r128;
+		emit_data->args[emit_data->arg_count++] = da;
+		if (!atomic) {
+			emit_data->args[emit_data->arg_count++] = glc;
+		}
+		emit_data->args[emit_data->arg_count++] = slc;
+		return;
+	}
+
+	/* HAVE_LLVM >= 0x0400 */
+	emit_data->args[emit_data->arg_count++] = glc;
+	emit_data->args[emit_data->arg_count++] = slc;
+	emit_data->args[emit_data->arg_count++] = lwe;
+	emit_data->args[emit_data->arg_count++] = da;
+}
+
+/**
+ * Append the resource and indexing arguments for buffer intrinsics.
+ *
+ * \param rsrc the v4i32 buffer resource
+ * \param index index into the buffer (stride-based)
+ * \param offset byte offset into the buffer
+ */
+static void buffer_append_args(
+		struct si_shader_context *ctx,
+		struct lp_build_emit_data *emit_data,
+		LLVMValueRef rsrc,
+		LLVMValueRef index,
+		LLVMValueRef offset,
+		bool atomic,
+		bool force_glc)
+{
+	const struct tgsi_full_instruction *inst = emit_data->inst;
+	LLVMValueRef i1false = LLVMConstInt(ctx->i1, 0, 0);
+	LLVMValueRef i1true = LLVMConstInt(ctx->i1, 1, 0);
+
+	emit_data->args[emit_data->arg_count++] = rsrc;
+	emit_data->args[emit_data->arg_count++] = index; /* vindex */
+	emit_data->args[emit_data->arg_count++] = offset; /* voffset */
+	if (!atomic) {
+		emit_data->args[emit_data->arg_count++] =
+			force_glc ||
+			inst->Memory.Qualifier & (TGSI_MEMORY_COHERENT | TGSI_MEMORY_VOLATILE) ?
+			i1true : i1false; /* glc */
+	}
+	emit_data->args[emit_data->arg_count++] = i1false; /* slc */
+}
+
+static void load_fetch_args(
+		struct lp_build_tgsi_context * bld_base,
+		struct lp_build_emit_data * emit_data)
+{
+	struct si_shader_context *ctx = si_shader_context(bld_base);
+	struct gallivm_state *gallivm = &ctx->gallivm;
+	const struct tgsi_full_instruction * inst = emit_data->inst;
+	unsigned target = inst->Memory.Texture;
+	LLVMValueRef rsrc;
+
+	emit_data->dst_type = ctx->v4f32;
+
+	if (inst->Src[0].Register.File == TGSI_FILE_BUFFER) {
+		LLVMBuilderRef builder = gallivm->builder;
+		LLVMValueRef offset;
+		LLVMValueRef tmp;
+
+		rsrc = shader_buffer_fetch_rsrc(ctx, &inst->Src[0]);
+
+		tmp = lp_build_emit_fetch(bld_base, inst, 1, 0);
+		offset = LLVMBuildBitCast(builder, tmp, ctx->i32, "");
+
+		buffer_append_args(ctx, emit_data, rsrc, ctx->i32_0,
+				   offset, false, false);
+	} else if (inst->Src[0].Register.File == TGSI_FILE_IMAGE) {
+		LLVMValueRef coords;
+
+		image_fetch_rsrc(bld_base, &inst->Src[0], false, target, &rsrc);
+		coords = image_fetch_coords(bld_base, inst, 1, rsrc);
+
+		if (target == TGSI_TEXTURE_BUFFER) {
+			buffer_append_args(ctx, emit_data, rsrc, coords,
+					   ctx->i32_0, false, false);
+		} else {
+			emit_data->args[0] = coords;
+			emit_data->args[1] = rsrc;
+			emit_data->args[2] = LLVMConstInt(ctx->i32, 15, 0); /* dmask */
+			emit_data->arg_count = 3;
+
+			image_append_args(ctx, emit_data, target, false, false);
+		}
+	}
+}
+
+static unsigned get_load_intr_attribs(bool readonly_memory)
+{
+	/* READNONE means writes can't affect it, while READONLY means that
+	 * writes can affect it. */
+	return readonly_memory && HAVE_LLVM >= 0x0400 ?
+				 LP_FUNC_ATTR_READNONE :
+				 LP_FUNC_ATTR_READONLY;
+}
+
+static unsigned get_store_intr_attribs(bool writeonly_memory)
+{
+	return writeonly_memory && HAVE_LLVM >= 0x0400 ?
+				  LP_FUNC_ATTR_INACCESSIBLE_MEM_ONLY :
+				  LP_FUNC_ATTR_WRITEONLY;
+}
+
+static void load_emit_buffer(struct si_shader_context *ctx,
+			     struct lp_build_emit_data *emit_data,
+			     bool readonly_memory)
+{
+	const struct tgsi_full_instruction *inst = emit_data->inst;
+	struct gallivm_state *gallivm = &ctx->gallivm;
+	LLVMBuilderRef builder = gallivm->builder;
+	uint writemask = inst->Dst[0].Register.WriteMask;
+	uint count = util_last_bit(writemask);
+	const char *intrinsic_name;
+	LLVMTypeRef dst_type;
+
+	switch (count) {
+	case 1:
+		intrinsic_name = "llvm.amdgcn.buffer.load.f32";
+		dst_type = ctx->f32;
+		break;
+	case 2:
+		intrinsic_name = "llvm.amdgcn.buffer.load.v2f32";
+		dst_type = LLVMVectorType(ctx->f32, 2);
+		break;
+	default: // 3 & 4
+		intrinsic_name = "llvm.amdgcn.buffer.load.v4f32";
+		dst_type = ctx->v4f32;
+		count = 4;
+	}
+
+	emit_data->output[emit_data->chan] = lp_build_intrinsic(
+			builder, intrinsic_name, dst_type,
+			emit_data->args, emit_data->arg_count,
+			get_load_intr_attribs(readonly_memory));
+}
+
+static LLVMValueRef get_memory_ptr(struct si_shader_context *ctx,
+                                   const struct tgsi_full_instruction *inst,
+                                   LLVMTypeRef type, int arg)
+{
+	struct gallivm_state *gallivm = &ctx->gallivm;
+	LLVMBuilderRef builder = gallivm->builder;
+	LLVMValueRef offset, ptr;
+	int addr_space;
+
+	offset = lp_build_emit_fetch(&ctx->bld_base, inst, arg, 0);
+	offset = LLVMBuildBitCast(builder, offset, ctx->i32, "");
+
+	ptr = ctx->shared_memory;
+	ptr = LLVMBuildGEP(builder, ptr, &offset, 1, "");
+	addr_space = LLVMGetPointerAddressSpace(LLVMTypeOf(ptr));
+	ptr = LLVMBuildBitCast(builder, ptr, LLVMPointerType(type, addr_space), "");
+
+	return ptr;
+}
+
+static void load_emit_memory(
+		struct si_shader_context *ctx,
+		struct lp_build_emit_data *emit_data)
+{
+	const struct tgsi_full_instruction *inst = emit_data->inst;
+	struct gallivm_state *gallivm = &ctx->gallivm;
+	LLVMBuilderRef builder = gallivm->builder;
+	unsigned writemask = inst->Dst[0].Register.WriteMask;
+	LLVMValueRef channels[4], ptr, derived_ptr, index;
+	int chan;
+
+	ptr = get_memory_ptr(ctx, inst, ctx->f32, 1);
+
+	for (chan = 0; chan < 4; ++chan) {
+		if (!(writemask & (1 << chan))) {
+			channels[chan] = LLVMGetUndef(ctx->f32);
+			continue;
+		}
+
+		index = LLVMConstInt(ctx->i32, chan, 0);
+		derived_ptr = LLVMBuildGEP(builder, ptr, &index, 1, "");
+		channels[chan] = LLVMBuildLoad(builder, derived_ptr, "");
+	}
+	emit_data->output[emit_data->chan] = lp_build_gather_values(gallivm, channels, 4);
+}
+
+/**
+ * Return true if the memory accessed by a LOAD or STORE instruction is
+ * read-only or write-only, respectively.
+ *
+ * \param shader_buffers_reverse_access_mask
+ *	For LOAD, set this to (store | atomic) slot usage in the shader.
+ *	For STORE, set this to (load | atomic) slot usage in the shader.
+ * \param images_reverse_access_mask  Same as above, but for images.
+ */
+static bool is_oneway_access_only(const struct tgsi_full_instruction *inst,
+				  const struct tgsi_shader_info *info,
+				  unsigned shader_buffers_reverse_access_mask,
+				  unsigned images_reverse_access_mask)
+{
+	/* RESTRICT means NOALIAS.
+	 * If there are no writes, we can assume the accessed memory is read-only.
+	 * If there are no reads, we can assume the accessed memory is write-only.
+	 */
+	if (inst->Memory.Qualifier & TGSI_MEMORY_RESTRICT) {
+		unsigned reverse_access_mask;
+
+		if (inst->Src[0].Register.File == TGSI_FILE_BUFFER) {
+			reverse_access_mask = shader_buffers_reverse_access_mask;
+		} else if (inst->Memory.Texture == TGSI_TEXTURE_BUFFER) {
+			reverse_access_mask = info->images_buffers &
+					      images_reverse_access_mask;
+		} else {
+			reverse_access_mask = ~info->images_buffers &
+					      images_reverse_access_mask;
+		}
+
+		if (inst->Src[0].Register.Indirect) {
+			if (!reverse_access_mask)
+				return true;
+		} else {
+			if (!(reverse_access_mask &
+			      (1u << inst->Src[0].Register.Index)))
+				return true;
+		}
+	}
+
+	/* If there are no buffer writes (for both shader buffers & image
+	 * buffers), it implies that buffer memory is read-only.
+	 * If there are no buffer reads (for both shader buffers & image
+	 * buffers), it implies that buffer memory is write-only.
+	 *
+	 * Same for the case when there are no writes/reads for non-buffer
+	 * images.
+	 */
+	if (inst->Src[0].Register.File == TGSI_FILE_BUFFER ||
+	    (inst->Src[0].Register.File == TGSI_FILE_IMAGE &&
+	     inst->Memory.Texture == TGSI_TEXTURE_BUFFER)) {
+		if (!shader_buffers_reverse_access_mask &&
+		    !(info->images_buffers & images_reverse_access_mask))
+			return true;
+	} else {
+		if (!(~info->images_buffers & images_reverse_access_mask))
+			return true;
+	}
+	return false;
+}
+
+static void load_emit(
+		const struct lp_build_tgsi_action *action,
+		struct lp_build_tgsi_context *bld_base,
+		struct lp_build_emit_data *emit_data)
+{
+	struct si_shader_context *ctx = si_shader_context(bld_base);
+	struct gallivm_state *gallivm = &ctx->gallivm;
+	LLVMBuilderRef builder = gallivm->builder;
+	const struct tgsi_full_instruction * inst = emit_data->inst;
+	const struct tgsi_shader_info *info = &ctx->shader->selector->info;
+	char intrinsic_name[64];
+	bool readonly_memory = false;
+
+	if (inst->Src[0].Register.File == TGSI_FILE_MEMORY) {
+		load_emit_memory(ctx, emit_data);
+		return;
+	}
+
+	if (inst->Memory.Qualifier & TGSI_MEMORY_VOLATILE)
+		si_emit_waitcnt(ctx, VM_CNT);
+
+	readonly_memory = !(inst->Memory.Qualifier & TGSI_MEMORY_VOLATILE) &&
+			  is_oneway_access_only(inst, info,
+						info->shader_buffers_store |
+						info->shader_buffers_atomic,
+						info->images_store |
+						info->images_atomic);
+
+	if (inst->Src[0].Register.File == TGSI_FILE_BUFFER) {
+		load_emit_buffer(ctx, emit_data, readonly_memory);
+		return;
+	}
+
+	if (inst->Memory.Texture == TGSI_TEXTURE_BUFFER) {
+		emit_data->output[emit_data->chan] =
+			lp_build_intrinsic(
+				builder, "llvm.amdgcn.buffer.load.format.v4f32", emit_data->dst_type,
+				emit_data->args, emit_data->arg_count,
+				get_load_intr_attribs(readonly_memory));
+	} else {
+		ac_get_image_intr_name("llvm.amdgcn.image.load",
+				       emit_data->dst_type,		/* vdata */
+				       LLVMTypeOf(emit_data->args[0]), /* coords */
+				       LLVMTypeOf(emit_data->args[1]), /* rsrc */
+				       intrinsic_name, sizeof(intrinsic_name));
+
+		emit_data->output[emit_data->chan] =
+			lp_build_intrinsic(
+				builder, intrinsic_name, emit_data->dst_type,
+				emit_data->args, emit_data->arg_count,
+				get_load_intr_attribs(readonly_memory));
+	}
+}
+
+static void store_fetch_args(
+		struct lp_build_tgsi_context * bld_base,
+		struct lp_build_emit_data * emit_data)
+{
+	struct si_shader_context *ctx = si_shader_context(bld_base);
+	struct gallivm_state *gallivm = &ctx->gallivm;
+	LLVMBuilderRef builder = gallivm->builder;
+	const struct tgsi_full_instruction * inst = emit_data->inst;
+	struct tgsi_full_src_register memory;
+	LLVMValueRef chans[4];
+	LLVMValueRef data;
+	LLVMValueRef rsrc;
+	unsigned chan;
+
+	emit_data->dst_type = LLVMVoidTypeInContext(gallivm->context);
+
+	for (chan = 0; chan < 4; ++chan) {
+		chans[chan] = lp_build_emit_fetch(bld_base, inst, 1, chan);
+	}
+	data = lp_build_gather_values(gallivm, chans, 4);
+
+	emit_data->args[emit_data->arg_count++] = data;
+
+	memory = tgsi_full_src_register_from_dst(&inst->Dst[0]);
+
+	if (inst->Dst[0].Register.File == TGSI_FILE_BUFFER) {
+		LLVMValueRef offset;
+		LLVMValueRef tmp;
+
+		rsrc = shader_buffer_fetch_rsrc(ctx, &memory);
+
+		tmp = lp_build_emit_fetch(bld_base, inst, 0, 0);
+		offset = LLVMBuildBitCast(builder, tmp, ctx->i32, "");
+
+		buffer_append_args(ctx, emit_data, rsrc, ctx->i32_0,
+				   offset, false, false);
+	} else if (inst->Dst[0].Register.File == TGSI_FILE_IMAGE) {
+		unsigned target = inst->Memory.Texture;
+		LLVMValueRef coords;
+
+		/* 8bit/16bit TC L1 write corruption bug on SI.
+		 * All store opcodes not aligned to a dword are affected.
+		 *
+		 * The only way to get unaligned stores in radeonsi is through
+		 * shader images.
+		 */
+		bool force_glc = ctx->screen->b.chip_class == SI;
+
+		image_fetch_rsrc(bld_base, &memory, true, target, &rsrc);
+		coords = image_fetch_coords(bld_base, inst, 0, rsrc);
+
+		if (target == TGSI_TEXTURE_BUFFER) {
+			buffer_append_args(ctx, emit_data, rsrc, coords,
+					   ctx->i32_0, false, force_glc);
+		} else {
+			emit_data->args[1] = coords;
+			emit_data->args[2] = rsrc;
+			emit_data->args[3] = LLVMConstInt(ctx->i32, 15, 0); /* dmask */
+			emit_data->arg_count = 4;
+
+			image_append_args(ctx, emit_data, target, false, force_glc);
+		}
+	}
+}
+
+static void store_emit_buffer(
+		struct si_shader_context *ctx,
+		struct lp_build_emit_data *emit_data,
+		bool writeonly_memory)
+{
+	const struct tgsi_full_instruction *inst = emit_data->inst;
+	struct gallivm_state *gallivm = &ctx->gallivm;
+	LLVMBuilderRef builder = gallivm->builder;
+	LLVMValueRef base_data = emit_data->args[0];
+	LLVMValueRef base_offset = emit_data->args[3];
+	unsigned writemask = inst->Dst[0].Register.WriteMask;
+
+	while (writemask) {
+		int start, count;
+		const char *intrinsic_name;
+		LLVMValueRef data;
+		LLVMValueRef offset;
+		LLVMValueRef tmp;
+
+		u_bit_scan_consecutive_range(&writemask, &start, &count);
+
+		/* Due to an LLVM limitation, split 3-element writes
+		 * into a 2-element and a 1-element write. */
+		if (count == 3) {
+			writemask |= 1 << (start + 2);
+			count = 2;
+		}
+
+		if (count == 4) {
+			data = base_data;
+			intrinsic_name = "llvm.amdgcn.buffer.store.v4f32";
+		} else if (count == 2) {
+			LLVMTypeRef v2f32 = LLVMVectorType(ctx->f32, 2);
+
+			tmp = LLVMBuildExtractElement(
+				builder, base_data,
+				LLVMConstInt(ctx->i32, start, 0), "");
+			data = LLVMBuildInsertElement(
+				builder, LLVMGetUndef(v2f32), tmp,
+				ctx->i32_0, "");
+
+			tmp = LLVMBuildExtractElement(
+				builder, base_data,
+				LLVMConstInt(ctx->i32, start + 1, 0), "");
+			data = LLVMBuildInsertElement(
+				builder, data, tmp, ctx->i32_1, "");
+
+			intrinsic_name = "llvm.amdgcn.buffer.store.v2f32";
+		} else {
+			assert(count == 1);
+			data = LLVMBuildExtractElement(
+				builder, base_data,
+				LLVMConstInt(ctx->i32, start, 0), "");
+			intrinsic_name = "llvm.amdgcn.buffer.store.f32";
+		}
+
+		offset = base_offset;
+		if (start != 0) {
+			offset = LLVMBuildAdd(
+				builder, offset,
+				LLVMConstInt(ctx->i32, start * 4, 0), "");
+		}
+
+		emit_data->args[0] = data;
+		emit_data->args[3] = offset;
+
+		lp_build_intrinsic(
+			builder, intrinsic_name, emit_data->dst_type,
+			emit_data->args, emit_data->arg_count,
+			get_store_intr_attribs(writeonly_memory));
+	}
+}
+
+static void store_emit_memory(
+		struct si_shader_context *ctx,
+		struct lp_build_emit_data *emit_data)
+{
+	const struct tgsi_full_instruction *inst = emit_data->inst;
+	struct gallivm_state *gallivm = &ctx->gallivm;
+	LLVMBuilderRef builder = gallivm->builder;
+	unsigned writemask = inst->Dst[0].Register.WriteMask;
+	LLVMValueRef ptr, derived_ptr, data, index;
+	int chan;
+
+	ptr = get_memory_ptr(ctx, inst, ctx->f32, 0);
+
+	for (chan = 0; chan < 4; ++chan) {
+		if (!(writemask & (1 << chan))) {
+			continue;
+		}
+		data = lp_build_emit_fetch(&ctx->bld_base, inst, 1, chan);
+		index = LLVMConstInt(ctx->i32, chan, 0);
+		derived_ptr = LLVMBuildGEP(builder, ptr, &index, 1, "");
+		LLVMBuildStore(builder, data, derived_ptr);
+	}
+}
+
+static void store_emit(
+		const struct lp_build_tgsi_action *action,
+		struct lp_build_tgsi_context *bld_base,
+		struct lp_build_emit_data *emit_data)
+{
+	struct si_shader_context *ctx = si_shader_context(bld_base);
+	struct gallivm_state *gallivm = &ctx->gallivm;
+	LLVMBuilderRef builder = gallivm->builder;
+	const struct tgsi_full_instruction * inst = emit_data->inst;
+	const struct tgsi_shader_info *info = &ctx->shader->selector->info;
+	unsigned target = inst->Memory.Texture;
+	char intrinsic_name[64];
+	bool writeonly_memory = false;
+
+	if (inst->Dst[0].Register.File == TGSI_FILE_MEMORY) {
+		store_emit_memory(ctx, emit_data);
+		return;
+	}
+
+	if (inst->Memory.Qualifier & TGSI_MEMORY_VOLATILE)
+		si_emit_waitcnt(ctx, VM_CNT);
+
+	writeonly_memory = is_oneway_access_only(inst, info,
+						 info->shader_buffers_load |
+						 info->shader_buffers_atomic,
+						 info->images_load |
+						 info->images_atomic);
+
+	if (inst->Dst[0].Register.File == TGSI_FILE_BUFFER) {
+		store_emit_buffer(ctx, emit_data, writeonly_memory);
+		return;
+	}
+
+	if (target == TGSI_TEXTURE_BUFFER) {
+		emit_data->output[emit_data->chan] = lp_build_intrinsic(
+			builder, "llvm.amdgcn.buffer.store.format.v4f32",
+			emit_data->dst_type, emit_data->args,
+			emit_data->arg_count,
+			get_store_intr_attribs(writeonly_memory));
+	} else {
+		ac_get_image_intr_name("llvm.amdgcn.image.store",
+				       LLVMTypeOf(emit_data->args[0]), /* vdata */
+				       LLVMTypeOf(emit_data->args[1]), /* coords */
+				       LLVMTypeOf(emit_data->args[2]), /* rsrc */
+				       intrinsic_name, sizeof(intrinsic_name));
+
+		emit_data->output[emit_data->chan] =
+			lp_build_intrinsic(
+				builder, intrinsic_name, emit_data->dst_type,
+				emit_data->args, emit_data->arg_count,
+				get_store_intr_attribs(writeonly_memory));
+	}
+}
+
+static void atomic_fetch_args(
+		struct lp_build_tgsi_context * bld_base,
+		struct lp_build_emit_data * emit_data)
+{
+	struct si_shader_context *ctx = si_shader_context(bld_base);
+	struct gallivm_state *gallivm = &ctx->gallivm;
+	LLVMBuilderRef builder = gallivm->builder;
+	const struct tgsi_full_instruction * inst = emit_data->inst;
+	LLVMValueRef data1, data2;
+	LLVMValueRef rsrc;
+	LLVMValueRef tmp;
+
+	emit_data->dst_type = ctx->f32;
+
+	tmp = lp_build_emit_fetch(bld_base, inst, 2, 0);
+	data1 = LLVMBuildBitCast(builder, tmp, ctx->i32, "");
+
+	if (inst->Instruction.Opcode == TGSI_OPCODE_ATOMCAS) {
+		tmp = lp_build_emit_fetch(bld_base, inst, 3, 0);
+		data2 = LLVMBuildBitCast(builder, tmp, ctx->i32, "");
+	}
+
+	/* llvm.amdgcn.image/buffer.atomic.cmpswap reflect the hardware order
+	 * of arguments, which is reversed relative to TGSI (and GLSL)
+	 */
+	if (inst->Instruction.Opcode == TGSI_OPCODE_ATOMCAS)
+		emit_data->args[emit_data->arg_count++] = data2;
+	emit_data->args[emit_data->arg_count++] = data1;
+
+	if (inst->Src[0].Register.File == TGSI_FILE_BUFFER) {
+		LLVMValueRef offset;
+
+		rsrc = shader_buffer_fetch_rsrc(ctx, &inst->Src[0]);
+
+		tmp = lp_build_emit_fetch(bld_base, inst, 1, 0);
+		offset = LLVMBuildBitCast(builder, tmp, ctx->i32, "");
+
+		buffer_append_args(ctx, emit_data, rsrc, ctx->i32_0,
+				   offset, true, false);
+	} else if (inst->Src[0].Register.File == TGSI_FILE_IMAGE) {
+		unsigned target = inst->Memory.Texture;
+		LLVMValueRef coords;
+
+		image_fetch_rsrc(bld_base, &inst->Src[0], true, target, &rsrc);
+		coords = image_fetch_coords(bld_base, inst, 1, rsrc);
+
+		if (target == TGSI_TEXTURE_BUFFER) {
+			buffer_append_args(ctx, emit_data, rsrc, coords,
+					   ctx->i32_0, true, false);
+		} else {
+			emit_data->args[emit_data->arg_count++] = coords;
+			emit_data->args[emit_data->arg_count++] = rsrc;
+
+			image_append_args(ctx, emit_data, target, true, false);
+		}
+	}
+}
+
+static void atomic_emit_memory(struct si_shader_context *ctx,
+                               struct lp_build_emit_data *emit_data) {
+	struct gallivm_state *gallivm = &ctx->gallivm;
+	LLVMBuilderRef builder = gallivm->builder;
+	const struct tgsi_full_instruction * inst = emit_data->inst;
+	LLVMValueRef ptr, result, arg;
+
+	ptr = get_memory_ptr(ctx, inst, ctx->i32, 1);
+
+	arg = lp_build_emit_fetch(&ctx->bld_base, inst, 2, 0);
+	arg = LLVMBuildBitCast(builder, arg, ctx->i32, "");
+
+	if (inst->Instruction.Opcode == TGSI_OPCODE_ATOMCAS) {
+		LLVMValueRef new_data;
+		new_data = lp_build_emit_fetch(&ctx->bld_base,
+		                               inst, 3, 0);
+
+		new_data = LLVMBuildBitCast(builder, new_data, ctx->i32, "");
+
+		result = LLVMBuildAtomicCmpXchg(builder, ptr, arg, new_data,
+		                       LLVMAtomicOrderingSequentiallyConsistent,
+		                       LLVMAtomicOrderingSequentiallyConsistent,
+		                       false);
+
+		result = LLVMBuildExtractValue(builder, result, 0, "");
+	} else {
+		LLVMAtomicRMWBinOp op;
+
+		switch(inst->Instruction.Opcode) {
+			case TGSI_OPCODE_ATOMUADD:
+				op = LLVMAtomicRMWBinOpAdd;
+				break;
+			case TGSI_OPCODE_ATOMXCHG:
+				op = LLVMAtomicRMWBinOpXchg;
+				break;
+			case TGSI_OPCODE_ATOMAND:
+				op = LLVMAtomicRMWBinOpAnd;
+				break;
+			case TGSI_OPCODE_ATOMOR:
+				op = LLVMAtomicRMWBinOpOr;
+				break;
+			case TGSI_OPCODE_ATOMXOR:
+				op = LLVMAtomicRMWBinOpXor;
+				break;
+			case TGSI_OPCODE_ATOMUMIN:
+				op = LLVMAtomicRMWBinOpUMin;
+				break;
+			case TGSI_OPCODE_ATOMUMAX:
+				op = LLVMAtomicRMWBinOpUMax;
+				break;
+			case TGSI_OPCODE_ATOMIMIN:
+				op = LLVMAtomicRMWBinOpMin;
+				break;
+			case TGSI_OPCODE_ATOMIMAX:
+				op = LLVMAtomicRMWBinOpMax;
+				break;
+			default:
+				unreachable("unknown atomic opcode");
+		}
+
+		result = LLVMBuildAtomicRMW(builder, op, ptr, arg,
+		                       LLVMAtomicOrderingSequentiallyConsistent,
+		                       false);
+	}
+	emit_data->output[emit_data->chan] = LLVMBuildBitCast(builder, result, emit_data->dst_type, "");
+}
+
+static void atomic_emit(
+		const struct lp_build_tgsi_action *action,
+		struct lp_build_tgsi_context *bld_base,
+		struct lp_build_emit_data *emit_data)
+{
+	struct si_shader_context *ctx = si_shader_context(bld_base);
+	struct gallivm_state *gallivm = &ctx->gallivm;
+	LLVMBuilderRef builder = gallivm->builder;
+	const struct tgsi_full_instruction * inst = emit_data->inst;
+	char intrinsic_name[40];
+	LLVMValueRef tmp;
+
+	if (inst->Src[0].Register.File == TGSI_FILE_MEMORY) {
+		atomic_emit_memory(ctx, emit_data);
+		return;
+	}
+
+	if (inst->Src[0].Register.File == TGSI_FILE_BUFFER ||
+	    inst->Memory.Texture == TGSI_TEXTURE_BUFFER) {
+		snprintf(intrinsic_name, sizeof(intrinsic_name),
+			 "llvm.amdgcn.buffer.atomic.%s", action->intr_name);
+	} else {
+		LLVMValueRef coords;
+		char coords_type[8];
+
+		if (inst->Instruction.Opcode == TGSI_OPCODE_ATOMCAS)
+			coords = emit_data->args[2];
+		else
+			coords = emit_data->args[1];
+
+		ac_build_type_name_for_intr(LLVMTypeOf(coords), coords_type, sizeof(coords_type));
+		snprintf(intrinsic_name, sizeof(intrinsic_name),
+			 "llvm.amdgcn.image.atomic.%s.%s",
+			 action->intr_name, coords_type);
+	}
+
+	tmp = lp_build_intrinsic(
+		builder, intrinsic_name, ctx->i32,
+		emit_data->args, emit_data->arg_count, 0);
+	emit_data->output[emit_data->chan] =
+		LLVMBuildBitCast(builder, tmp, ctx->f32, "");
+}
+
+static void set_tex_fetch_args(struct si_shader_context *ctx,
+			       struct lp_build_emit_data *emit_data,
+			       unsigned target,
+			       LLVMValueRef res_ptr, LLVMValueRef samp_ptr,
+			       LLVMValueRef *param, unsigned count,
+			       unsigned dmask)
+{
+	struct gallivm_state *gallivm = &ctx->gallivm;
+	struct ac_image_args args = {};
+
+	/* Pad to power of two vector */
+	while (count < util_next_power_of_two(count))
+		param[count++] = LLVMGetUndef(ctx->i32);
+
+	if (count > 1)
+		args.addr = lp_build_gather_values(gallivm, param, count);
+	else
+		args.addr = param[0];
+
+	args.resource = res_ptr;
+	args.sampler = samp_ptr;
+	args.dmask = dmask;
+	args.unorm = target == TGSI_TEXTURE_RECT ||
+		     target == TGSI_TEXTURE_SHADOWRECT;
+	args.da = tgsi_is_array_sampler(target);
+
+	/* Ugly, but we seem to have no other choice right now. */
+	STATIC_ASSERT(sizeof(args) <= sizeof(emit_data->args));
+	memcpy(emit_data->args, &args, sizeof(args));
+}
+
+static LLVMValueRef fix_resinfo(struct si_shader_context *ctx,
+				unsigned target, LLVMValueRef out)
+{
+	LLVMBuilderRef builder = ctx->gallivm.builder;
+
+	/* 1D textures are allocated and used as 2D on GFX9. */
+        if (ctx->screen->b.chip_class >= GFX9 &&
+	    (target == TGSI_TEXTURE_1D_ARRAY ||
+	     target == TGSI_TEXTURE_SHADOW1D_ARRAY)) {
+		LLVMValueRef layers =
+			LLVMBuildExtractElement(builder, out,
+						LLVMConstInt(ctx->i32, 2, 0), "");
+		out = LLVMBuildInsertElement(builder, out, layers,
+					     ctx->i32_1, "");
+	}
+
+	/* Divide the number of layers by 6 to get the number of cubes. */
+	if (target == TGSI_TEXTURE_CUBE_ARRAY ||
+	    target == TGSI_TEXTURE_SHADOWCUBE_ARRAY) {
+		LLVMValueRef imm2 = LLVMConstInt(ctx->i32, 2, 0);
+
+		LLVMValueRef z = LLVMBuildExtractElement(builder, out, imm2, "");
+		z = LLVMBuildSDiv(builder, z, LLVMConstInt(ctx->i32, 6, 0), "");
+
+		out = LLVMBuildInsertElement(builder, out, z, imm2, "");
+	}
+	return out;
+}
+
+static void resq_fetch_args(
+		struct lp_build_tgsi_context * bld_base,
+		struct lp_build_emit_data * emit_data)
+{
+	struct si_shader_context *ctx = si_shader_context(bld_base);
+	const struct tgsi_full_instruction *inst = emit_data->inst;
+	const struct tgsi_full_src_register *reg = &inst->Src[0];
+
+	emit_data->dst_type = ctx->v4i32;
+
+	if (reg->Register.File == TGSI_FILE_BUFFER) {
+		emit_data->args[0] = shader_buffer_fetch_rsrc(ctx, reg);
+		emit_data->arg_count = 1;
+	} else if (inst->Memory.Texture == TGSI_TEXTURE_BUFFER) {
+		image_fetch_rsrc(bld_base, reg, false, inst->Memory.Texture,
+				 &emit_data->args[0]);
+		emit_data->arg_count = 1;
+	} else {
+		LLVMValueRef res_ptr;
+		unsigned image_target;
+
+		if (inst->Memory.Texture == TGSI_TEXTURE_3D)
+			image_target = TGSI_TEXTURE_2D_ARRAY;
+		else
+			image_target = inst->Memory.Texture;
+
+		image_fetch_rsrc(bld_base, reg, false, inst->Memory.Texture,
+				 &res_ptr);
+		set_tex_fetch_args(ctx, emit_data, image_target,
+				   res_ptr, NULL, &ctx->i32_0, 1,
+				   0xf);
+	}
+}
+
+static void resq_emit(
+		const struct lp_build_tgsi_action *action,
+		struct lp_build_tgsi_context *bld_base,
+		struct lp_build_emit_data *emit_data)
+{
+	struct si_shader_context *ctx = si_shader_context(bld_base);
+	struct gallivm_state *gallivm = &ctx->gallivm;
+	LLVMBuilderRef builder = gallivm->builder;
+	const struct tgsi_full_instruction *inst = emit_data->inst;
+	LLVMValueRef out;
+
+	if (inst->Src[0].Register.File == TGSI_FILE_BUFFER) {
+		out = LLVMBuildExtractElement(builder, emit_data->args[0],
+					      LLVMConstInt(ctx->i32, 2, 0), "");
+	} else if (inst->Memory.Texture == TGSI_TEXTURE_BUFFER) {
+		out = get_buffer_size(bld_base, emit_data->args[0]);
+	} else {
+		struct ac_image_args args;
+
+		memcpy(&args, emit_data->args, sizeof(args)); /* ugly */
+		args.opcode = ac_image_get_resinfo;
+		out = ac_build_image_opcode(&ctx->ac, &args);
+
+		out = fix_resinfo(ctx, inst->Memory.Texture, out);
+	}
+
+	emit_data->output[emit_data->chan] = out;
+}
+
+/**
+ * Load an image view, fmask view. or sampler state descriptor.
+ */
+static LLVMValueRef load_sampler_desc(struct si_shader_context *ctx,
+				      LLVMValueRef list, LLVMValueRef index,
+				      enum desc_type type)
+{
+	struct gallivm_state *gallivm = &ctx->gallivm;
+	LLVMBuilderRef builder = gallivm->builder;
+
+	switch (type) {
+	case DESC_IMAGE:
+		/* The image is at [0:7]. */
+		index = LLVMBuildMul(builder, index, LLVMConstInt(ctx->i32, 2, 0), "");
+		break;
+	case DESC_BUFFER:
+		/* The buffer is in [4:7]. */
+		index = LLVMBuildMul(builder, index, LLVMConstInt(ctx->i32, 4, 0), "");
+		index = LLVMBuildAdd(builder, index, ctx->i32_1, "");
+		list = LLVMBuildPointerCast(builder, list,
+					    si_const_array(ctx->v4i32, 0), "");
+		break;
+	case DESC_FMASK:
+		/* The FMASK is at [8:15]. */
+		index = LLVMBuildMul(builder, index, LLVMConstInt(ctx->i32, 2, 0), "");
+		index = LLVMBuildAdd(builder, index, ctx->i32_1, "");
+		break;
+	case DESC_SAMPLER:
+		/* The sampler state is at [12:15]. */
+		index = LLVMBuildMul(builder, index, LLVMConstInt(ctx->i32, 4, 0), "");
+		index = LLVMBuildAdd(builder, index, LLVMConstInt(ctx->i32, 3, 0), "");
+		list = LLVMBuildPointerCast(builder, list,
+					    si_const_array(ctx->v4i32, 0), "");
+		break;
+	}
+
+	return ac_build_indexed_load_const(&ctx->ac, list, index);
+}
+
+/* Disable anisotropic filtering if BASE_LEVEL == LAST_LEVEL.
+ *
+ * SI-CI:
+ *   If BASE_LEVEL == LAST_LEVEL, the shader must disable anisotropic
+ *   filtering manually. The driver sets img7 to a mask clearing
+ *   MAX_ANISO_RATIO if BASE_LEVEL == LAST_LEVEL. The shader must do:
+ *     s_and_b32 samp0, samp0, img7
+ *
+ * VI:
+ *   The ANISO_OVERRIDE sampler field enables this fix in TA.
+ */
+static LLVMValueRef sici_fix_sampler_aniso(struct si_shader_context *ctx,
+					   LLVMValueRef res, LLVMValueRef samp)
+{
+	LLVMBuilderRef builder = ctx->gallivm.builder;
+	LLVMValueRef img7, samp0;
+
+	if (ctx->screen->b.chip_class >= VI)
+		return samp;
+
+	img7 = LLVMBuildExtractElement(builder, res,
+				       LLVMConstInt(ctx->i32, 7, 0), "");
+	samp0 = LLVMBuildExtractElement(builder, samp,
+					ctx->i32_0, "");
+	samp0 = LLVMBuildAnd(builder, samp0, img7, "");
+	return LLVMBuildInsertElement(builder, samp, samp0,
+				      ctx->i32_0, "");
+}
+
+static void tex_fetch_ptrs(
+	struct lp_build_tgsi_context *bld_base,
+	struct lp_build_emit_data *emit_data,
+	LLVMValueRef *res_ptr, LLVMValueRef *samp_ptr, LLVMValueRef *fmask_ptr)
+{
+	struct si_shader_context *ctx = si_shader_context(bld_base);
+	LLVMValueRef list = LLVMGetParam(ctx->main_fn, ctx->param_samplers);
+	const struct tgsi_full_instruction *inst = emit_data->inst;
+	const struct tgsi_full_src_register *reg;
+	unsigned target = inst->Texture.Texture;
+	unsigned sampler_src;
+	LLVMValueRef index;
+
+	sampler_src = emit_data->inst->Instruction.NumSrcRegs - 1;
+	reg = &emit_data->inst->Src[sampler_src];
+
+	if (reg->Register.Indirect) {
+		index = si_get_bounded_indirect_index(ctx,
+						      &reg->Indirect,
+						      reg->Register.Index,
+						      SI_NUM_SAMPLERS);
+	} else {
+		index = LLVMConstInt(ctx->i32, reg->Register.Index, 0);
+	}
+
+	if (target == TGSI_TEXTURE_BUFFER)
+		*res_ptr = load_sampler_desc(ctx, list, index, DESC_BUFFER);
+	else
+		*res_ptr = load_sampler_desc(ctx, list, index, DESC_IMAGE);
+
+	if (samp_ptr)
+		*samp_ptr = NULL;
+	if (fmask_ptr)
+		*fmask_ptr = NULL;
+
+	if (target == TGSI_TEXTURE_2D_MSAA ||
+	    target == TGSI_TEXTURE_2D_ARRAY_MSAA) {
+		if (fmask_ptr)
+			*fmask_ptr = load_sampler_desc(ctx, list, index,
+						       DESC_FMASK);
+	} else if (target != TGSI_TEXTURE_BUFFER) {
+		if (samp_ptr) {
+			*samp_ptr = load_sampler_desc(ctx, list, index,
+						      DESC_SAMPLER);
+			*samp_ptr = sici_fix_sampler_aniso(ctx, *res_ptr, *samp_ptr);
+		}
+	}
+}
+
+static void txq_fetch_args(
+	struct lp_build_tgsi_context *bld_base,
+	struct lp_build_emit_data *emit_data)
+{
+	struct si_shader_context *ctx = si_shader_context(bld_base);
+	const struct tgsi_full_instruction *inst = emit_data->inst;
+	unsigned target = inst->Texture.Texture;
+	LLVMValueRef res_ptr;
+	LLVMValueRef address;
+
+	tex_fetch_ptrs(bld_base, emit_data, &res_ptr, NULL, NULL);
+
+	if (target == TGSI_TEXTURE_BUFFER) {
+		/* Read the size from the buffer descriptor directly. */
+		emit_data->args[0] = get_buffer_size(bld_base, res_ptr);
+		return;
+	}
+
+	/* Textures - set the mip level. */
+	address = lp_build_emit_fetch(bld_base, inst, 0, TGSI_CHAN_X);
+
+	set_tex_fetch_args(ctx, emit_data, target, res_ptr,
+			   NULL, &address, 1, 0xf);
+}
+
+static void txq_emit(const struct lp_build_tgsi_action *action,
+		     struct lp_build_tgsi_context *bld_base,
+		     struct lp_build_emit_data *emit_data)
+{
+	struct si_shader_context *ctx = si_shader_context(bld_base);
+	struct ac_image_args args;
+	unsigned target = emit_data->inst->Texture.Texture;
+
+	if (target == TGSI_TEXTURE_BUFFER) {
+		/* Just return the buffer size. */
+		emit_data->output[emit_data->chan] = emit_data->args[0];
+		return;
+	}
+
+	memcpy(&args, emit_data->args, sizeof(args)); /* ugly */
+
+	args.opcode = ac_image_get_resinfo;
+	LLVMValueRef result = ac_build_image_opcode(&ctx->ac, &args);
+
+	emit_data->output[emit_data->chan] = fix_resinfo(ctx, target, result);
+}
+
+static void tex_fetch_args(
+	struct lp_build_tgsi_context *bld_base,
+	struct lp_build_emit_data *emit_data)
+{
+	struct si_shader_context *ctx = si_shader_context(bld_base);
+	struct gallivm_state *gallivm = &ctx->gallivm;
+	const struct tgsi_full_instruction *inst = emit_data->inst;
+	unsigned opcode = inst->Instruction.Opcode;
+	unsigned target = inst->Texture.Texture;
+	LLVMValueRef coords[5], derivs[6];
+	LLVMValueRef address[16];
+	unsigned num_coords = tgsi_util_get_texture_coord_dim(target);
+	int ref_pos = tgsi_util_get_shadow_ref_src_index(target);
+	unsigned count = 0;
+	unsigned chan;
+	unsigned num_deriv_channels = 0;
+	bool has_offset = inst->Texture.NumOffsets > 0;
+	LLVMValueRef res_ptr, samp_ptr, fmask_ptr = NULL;
+	unsigned dmask = 0xf;
+
+	tex_fetch_ptrs(bld_base, emit_data, &res_ptr, &samp_ptr, &fmask_ptr);
+
+	if (target == TGSI_TEXTURE_BUFFER) {
+		emit_data->dst_type = ctx->v4f32;
+		emit_data->args[0] = res_ptr;
+		emit_data->args[1] = ctx->i32_0;
+		emit_data->args[2] = lp_build_emit_fetch(bld_base, emit_data->inst, 0, TGSI_CHAN_X);
+		emit_data->arg_count = 3;
+		return;
+	}
+
+	/* Fetch and project texture coordinates */
+	coords[3] = lp_build_emit_fetch(bld_base, emit_data->inst, 0, TGSI_CHAN_W);
+	for (chan = 0; chan < 3; chan++ ) {
+		coords[chan] = lp_build_emit_fetch(bld_base,
+						   emit_data->inst, 0,
+						   chan);
+		if (opcode == TGSI_OPCODE_TXP)
+			coords[chan] = lp_build_emit_llvm_binary(bld_base,
+								 TGSI_OPCODE_DIV,
+								 coords[chan],
+								 coords[3]);
+	}
+
+	if (opcode == TGSI_OPCODE_TXP)
+		coords[3] = bld_base->base.one;
+
+	/* Pack offsets. */
+	if (has_offset &&
+	    opcode != TGSI_OPCODE_TXF &&
+	    opcode != TGSI_OPCODE_TXF_LZ) {
+		/* The offsets are six-bit signed integers packed like this:
+		 *   X=[5:0], Y=[13:8], and Z=[21:16].
+		 */
+		LLVMValueRef offset[3], pack;
+
+		assert(inst->Texture.NumOffsets == 1);
+
+		for (chan = 0; chan < 3; chan++) {
+			offset[chan] = lp_build_emit_fetch_texoffset(bld_base,
+								     emit_data->inst, 0, chan);
+			offset[chan] = LLVMBuildAnd(gallivm->builder, offset[chan],
+						    LLVMConstInt(ctx->i32, 0x3f, 0), "");
+			if (chan)
+				offset[chan] = LLVMBuildShl(gallivm->builder, offset[chan],
+							    LLVMConstInt(ctx->i32, chan*8, 0), "");
+		}
+
+		pack = LLVMBuildOr(gallivm->builder, offset[0], offset[1], "");
+		pack = LLVMBuildOr(gallivm->builder, pack, offset[2], "");
+		address[count++] = pack;
+	}
+
+	/* Pack LOD bias value */
+	if (opcode == TGSI_OPCODE_TXB)
+		address[count++] = coords[3];
+	if (opcode == TGSI_OPCODE_TXB2)
+		address[count++] = lp_build_emit_fetch(bld_base, inst, 1, TGSI_CHAN_X);
+
+	/* Pack depth comparison value */
+	if (tgsi_is_shadow_target(target) && opcode != TGSI_OPCODE_LODQ) {
+		LLVMValueRef z;
+
+		if (target == TGSI_TEXTURE_SHADOWCUBE_ARRAY) {
+			z = lp_build_emit_fetch(bld_base, inst, 1, TGSI_CHAN_X);
+		} else {
+			assert(ref_pos >= 0);
+			z = coords[ref_pos];
+		}
+
+		/* TC-compatible HTILE promotes Z16 and Z24 to Z32_FLOAT,
+		 * so the depth comparison value isn't clamped for Z16 and
+		 * Z24 anymore. Do it manually here.
+		 *
+		 * It's unnecessary if the original texture format was
+		 * Z32_FLOAT, but we don't know that here.
+		 */
+		if (ctx->screen->b.chip_class == VI)
+			z = ac_build_clamp(&ctx->ac, z);
+
+		address[count++] = z;
+	}
+
+	/* Pack user derivatives */
+	if (opcode == TGSI_OPCODE_TXD) {
+		int param, num_src_deriv_channels, num_dst_deriv_channels;
+
+		switch (target) {
+		case TGSI_TEXTURE_3D:
+			num_src_deriv_channels = 3;
+			num_dst_deriv_channels = 3;
+			num_deriv_channels = 3;
+			break;
+		case TGSI_TEXTURE_2D:
+		case TGSI_TEXTURE_SHADOW2D:
+		case TGSI_TEXTURE_RECT:
+		case TGSI_TEXTURE_SHADOWRECT:
+		case TGSI_TEXTURE_2D_ARRAY:
+		case TGSI_TEXTURE_SHADOW2D_ARRAY:
+			num_src_deriv_channels = 2;
+			num_dst_deriv_channels = 2;
+			num_deriv_channels = 2;
+			break;
+		case TGSI_TEXTURE_CUBE:
+		case TGSI_TEXTURE_SHADOWCUBE:
+		case TGSI_TEXTURE_CUBE_ARRAY:
+		case TGSI_TEXTURE_SHADOWCUBE_ARRAY:
+			/* Cube derivatives will be converted to 2D. */
+			num_src_deriv_channels = 3;
+			num_dst_deriv_channels = 3;
+			num_deriv_channels = 2;
+			break;
+		case TGSI_TEXTURE_1D:
+		case TGSI_TEXTURE_SHADOW1D:
+		case TGSI_TEXTURE_1D_ARRAY:
+		case TGSI_TEXTURE_SHADOW1D_ARRAY:
+			num_src_deriv_channels = 1;
+
+			/* 1D textures are allocated and used as 2D on GFX9. */
+			if (ctx->screen->b.chip_class >= GFX9) {
+				num_dst_deriv_channels = 2;
+				num_deriv_channels = 2;
+			} else {
+				num_dst_deriv_channels = 1;
+				num_deriv_channels = 1;
+			}
+			break;
+		default:
+			unreachable("invalid target");
+		}
+
+		for (param = 0; param < 2; param++) {
+			for (chan = 0; chan < num_src_deriv_channels; chan++)
+				derivs[param * num_dst_deriv_channels + chan] =
+					lp_build_emit_fetch(bld_base, inst, param+1, chan);
+
+			/* Fill in the rest with zeros. */
+			for (chan = num_src_deriv_channels;
+			     chan < num_dst_deriv_channels; chan++)
+				derivs[param * num_dst_deriv_channels + chan] =
+					bld_base->base.zero;
+		}
+	}
+
+	if (target == TGSI_TEXTURE_CUBE ||
+	    target == TGSI_TEXTURE_CUBE_ARRAY ||
+	    target == TGSI_TEXTURE_SHADOWCUBE ||
+	    target == TGSI_TEXTURE_SHADOWCUBE_ARRAY)
+		ac_prepare_cube_coords(&ctx->ac,
+				       opcode == TGSI_OPCODE_TXD,
+				       target == TGSI_TEXTURE_CUBE_ARRAY ||
+				       target == TGSI_TEXTURE_SHADOWCUBE_ARRAY,
+				       coords, derivs);
+
+	if (opcode == TGSI_OPCODE_TXD)
+		for (int i = 0; i < num_deriv_channels * 2; i++)
+			address[count++] = derivs[i];
+
+	/* Pack texture coordinates */
+	address[count++] = coords[0];
+	if (num_coords > 1)
+		address[count++] = coords[1];
+	if (num_coords > 2)
+		address[count++] = coords[2];
+
+	/* 1D textures are allocated and used as 2D on GFX9. */
+	if (ctx->screen->b.chip_class >= GFX9) {
+		LLVMValueRef filler;
+
+		/* Use 0.5, so that we don't sample the border color. */
+		if (opcode == TGSI_OPCODE_TXF)
+			filler = ctx->i32_0;
+		else
+			filler = LLVMConstReal(ctx->f32, 0.5);
+
+		if (target == TGSI_TEXTURE_1D ||
+		    target == TGSI_TEXTURE_SHADOW1D) {
+			address[count++] = filler;
+		} else if (target == TGSI_TEXTURE_1D_ARRAY ||
+			   target == TGSI_TEXTURE_SHADOW1D_ARRAY) {
+			address[count] = address[count - 1];
+			address[count - 1] = filler;
+			count++;
+		}
+	}
+
+	/* Pack LOD or sample index */
+	if (opcode == TGSI_OPCODE_TXL || opcode == TGSI_OPCODE_TXF)
+		address[count++] = coords[3];
+	else if (opcode == TGSI_OPCODE_TXL2)
+		address[count++] = lp_build_emit_fetch(bld_base, inst, 1, TGSI_CHAN_X);
+
+	if (count > 16) {
+		assert(!"Cannot handle more than 16 texture address parameters");
+		count = 16;
+	}
+
+	for (chan = 0; chan < count; chan++ ) {
+		address[chan] = LLVMBuildBitCast(gallivm->builder,
+						 address[chan], ctx->i32, "");
+	}
+
+	/* Adjust the sample index according to FMASK.
+	 *
+	 * For uncompressed MSAA surfaces, FMASK should return 0x76543210,
+	 * which is the identity mapping. Each nibble says which physical sample
+	 * should be fetched to get that sample.
+	 *
+	 * For example, 0x11111100 means there are only 2 samples stored and
+	 * the second sample covers 3/4 of the pixel. When reading samples 0
+	 * and 1, return physical sample 0 (determined by the first two 0s
+	 * in FMASK), otherwise return physical sample 1.
+	 *
+	 * The sample index should be adjusted as follows:
+	 *   sample_index = (fmask >> (sample_index * 4)) & 0xF;
+	 */
+	if (target == TGSI_TEXTURE_2D_MSAA ||
+	    target == TGSI_TEXTURE_2D_ARRAY_MSAA) {
+		struct lp_build_emit_data txf_emit_data = *emit_data;
+		LLVMValueRef txf_address[4];
+		/* We only need .xy for non-arrays, and .xyz for arrays. */
+		unsigned txf_count = target == TGSI_TEXTURE_2D_MSAA ? 2 : 3;
+		struct tgsi_full_instruction inst = {};
+
+		memcpy(txf_address, address, sizeof(txf_address));
+
+		/* Read FMASK using TXF_LZ. */
+		inst.Instruction.Opcode = TGSI_OPCODE_TXF_LZ;
+		inst.Texture.Texture = target;
+		txf_emit_data.inst = &inst;
+		txf_emit_data.chan = 0;
+		set_tex_fetch_args(ctx, &txf_emit_data,
+				   target, fmask_ptr, NULL,
+				   txf_address, txf_count, 0xf);
+		build_tex_intrinsic(&tex_action, bld_base, &txf_emit_data);
+
+		/* Initialize some constants. */
+		LLVMValueRef four = LLVMConstInt(ctx->i32, 4, 0);
+		LLVMValueRef F = LLVMConstInt(ctx->i32, 0xF, 0);
+
+		/* Apply the formula. */
+		LLVMValueRef fmask =
+			LLVMBuildExtractElement(gallivm->builder,
+						txf_emit_data.output[0],
+						ctx->i32_0, "");
+
+		unsigned sample_chan = txf_count; /* the sample index is last */
+
+		LLVMValueRef sample_index4 =
+			LLVMBuildMul(gallivm->builder, address[sample_chan], four, "");
+
+		LLVMValueRef shifted_fmask =
+			LLVMBuildLShr(gallivm->builder, fmask, sample_index4, "");
+
+		LLVMValueRef final_sample =
+			LLVMBuildAnd(gallivm->builder, shifted_fmask, F, "");
+
+		/* Don't rewrite the sample index if WORD1.DATA_FORMAT of the FMASK
+		 * resource descriptor is 0 (invalid),
+		 */
+		LLVMValueRef fmask_desc =
+			LLVMBuildBitCast(gallivm->builder, fmask_ptr,
+					 ctx->v8i32, "");
+
+		LLVMValueRef fmask_word1 =
+			LLVMBuildExtractElement(gallivm->builder, fmask_desc,
+						ctx->i32_1, "");
+
+		LLVMValueRef word1_is_nonzero =
+			LLVMBuildICmp(gallivm->builder, LLVMIntNE,
+				      fmask_word1, ctx->i32_0, "");
+
+		/* Replace the MSAA sample index. */
+		address[sample_chan] =
+			LLVMBuildSelect(gallivm->builder, word1_is_nonzero,
+					final_sample, address[sample_chan], "");
+	}
+
+	if (opcode == TGSI_OPCODE_TXF ||
+	    opcode == TGSI_OPCODE_TXF_LZ) {
+		/* add tex offsets */
+		if (inst->Texture.NumOffsets) {
+			struct lp_build_context *uint_bld = &bld_base->uint_bld;
+			const struct tgsi_texture_offset *off = inst->TexOffsets;
+
+			assert(inst->Texture.NumOffsets == 1);
+
+			switch (target) {
+			case TGSI_TEXTURE_3D:
+				address[2] = lp_build_add(uint_bld, address[2],
+						ctx->imms[off->Index * TGSI_NUM_CHANNELS + off->SwizzleZ]);
+				/* fall through */
+			case TGSI_TEXTURE_2D:
+			case TGSI_TEXTURE_SHADOW2D:
+			case TGSI_TEXTURE_RECT:
+			case TGSI_TEXTURE_SHADOWRECT:
+			case TGSI_TEXTURE_2D_ARRAY:
+			case TGSI_TEXTURE_SHADOW2D_ARRAY:
+				address[1] =
+					lp_build_add(uint_bld, address[1],
+						ctx->imms[off->Index * TGSI_NUM_CHANNELS + off->SwizzleY]);
+				/* fall through */
+			case TGSI_TEXTURE_1D:
+			case TGSI_TEXTURE_SHADOW1D:
+			case TGSI_TEXTURE_1D_ARRAY:
+			case TGSI_TEXTURE_SHADOW1D_ARRAY:
+				address[0] =
+					lp_build_add(uint_bld, address[0],
+						ctx->imms[off->Index * TGSI_NUM_CHANNELS + off->SwizzleX]);
+				break;
+				/* texture offsets do not apply to other texture targets */
+			}
+		}
+	}
+
+	if (opcode == TGSI_OPCODE_TG4) {
+		unsigned gather_comp = 0;
+
+		/* DMASK was repurposed for GATHER4. 4 components are always
+		 * returned and DMASK works like a swizzle - it selects
+		 * the component to fetch. The only valid DMASK values are
+		 * 1=red, 2=green, 4=blue, 8=alpha. (e.g. 1 returns
+		 * (red,red,red,red) etc.) The ISA document doesn't mention
+		 * this.
+		 */
+
+		/* Get the component index from src1.x for Gather4. */
+		if (!tgsi_is_shadow_target(target)) {
+			LLVMValueRef comp_imm;
+			struct tgsi_src_register src1 = inst->Src[1].Register;
+
+			assert(src1.File == TGSI_FILE_IMMEDIATE);
+
+			comp_imm = ctx->imms[src1.Index * TGSI_NUM_CHANNELS + src1.SwizzleX];
+			gather_comp = LLVMConstIntGetZExtValue(comp_imm);
+			gather_comp = CLAMP(gather_comp, 0, 3);
+		}
+
+		dmask = 1 << gather_comp;
+	}
+
+	set_tex_fetch_args(ctx, emit_data, target, res_ptr,
+			   samp_ptr, address, count, dmask);
+}
+
+/* Gather4 should follow the same rules as bilinear filtering, but the hardware
+ * incorrectly forces nearest filtering if the texture format is integer.
+ * The only effect it has on Gather4, which always returns 4 texels for
+ * bilinear filtering, is that the final coordinates are off by 0.5 of
+ * the texel size.
+ *
+ * The workaround is to subtract 0.5 from the unnormalized coordinates,
+ * or (0.5 / size) from the normalized coordinates.
+ */
+static void si_lower_gather4_integer(struct si_shader_context *ctx,
+				     struct ac_image_args *args,
+				     unsigned target)
+{
+	LLVMBuilderRef builder = ctx->gallivm.builder;
+	LLVMValueRef coord = args->addr;
+	LLVMValueRef half_texel[2];
+	/* Texture coordinates start after:
+	 *   {offset, bias, z-compare, derivatives}
+	 * Only the offset and z-compare can occur here.
+	 */
+	unsigned coord_vgpr_index = (int)args->offset + (int)args->compare;
+	int c;
+
+	if (target == TGSI_TEXTURE_RECT ||
+	    target == TGSI_TEXTURE_SHADOWRECT) {
+		half_texel[0] = half_texel[1] = LLVMConstReal(ctx->f32, -0.5);
+	} else {
+		struct tgsi_full_instruction txq_inst = {};
+		struct lp_build_emit_data txq_emit_data = {};
+
+		/* Query the texture size. */
+		txq_inst.Texture.Texture = target;
+		txq_emit_data.inst = &txq_inst;
+		txq_emit_data.dst_type = ctx->v4i32;
+		set_tex_fetch_args(ctx, &txq_emit_data, target,
+				   args->resource, NULL, &ctx->i32_0,
+				   1, 0xf);
+		txq_emit(NULL, &ctx->bld_base, &txq_emit_data);
+
+		/* Compute -0.5 / size. */
+		for (c = 0; c < 2; c++) {
+			half_texel[c] =
+				LLVMBuildExtractElement(builder, txq_emit_data.output[0],
+							LLVMConstInt(ctx->i32, c, 0), "");
+			half_texel[c] = LLVMBuildUIToFP(builder, half_texel[c], ctx->f32, "");
+			half_texel[c] =
+				lp_build_emit_llvm_unary(&ctx->bld_base,
+							 TGSI_OPCODE_RCP, half_texel[c]);
+			half_texel[c] = LLVMBuildFMul(builder, half_texel[c],
+						      LLVMConstReal(ctx->f32, -0.5), "");
+		}
+	}
+
+	for (c = 0; c < 2; c++) {
+		LLVMValueRef tmp;
+		LLVMValueRef index = LLVMConstInt(ctx->i32, coord_vgpr_index + c, 0);
+
+		tmp = LLVMBuildExtractElement(builder, coord, index, "");
+		tmp = LLVMBuildBitCast(builder, tmp, ctx->f32, "");
+		tmp = LLVMBuildFAdd(builder, tmp, half_texel[c], "");
+		tmp = LLVMBuildBitCast(builder, tmp, ctx->i32, "");
+		coord = LLVMBuildInsertElement(builder, coord, tmp, index, "");
+	}
+
+	args->addr = coord;
+}
+
+static void build_tex_intrinsic(const struct lp_build_tgsi_action *action,
+				struct lp_build_tgsi_context *bld_base,
+				struct lp_build_emit_data *emit_data)
+{
+	struct si_shader_context *ctx = si_shader_context(bld_base);
+	const struct tgsi_full_instruction *inst = emit_data->inst;
+	struct ac_image_args args;
+	unsigned opcode = inst->Instruction.Opcode;
+	unsigned target = inst->Texture.Texture;
+
+	if (target == TGSI_TEXTURE_BUFFER) {
+		emit_data->output[emit_data->chan] =
+			ac_build_buffer_load_format(&ctx->ac,
+						    emit_data->args[0],
+						    emit_data->args[2],
+						    emit_data->args[1],
+						    true);
+		return;
+	}
+
+	memcpy(&args, emit_data->args, sizeof(args)); /* ugly */
+
+	args.opcode = ac_image_sample;
+	args.compare = tgsi_is_shadow_target(target);
+	args.offset = inst->Texture.NumOffsets > 0;
+
+	switch (opcode) {
+	case TGSI_OPCODE_TXF:
+	case TGSI_OPCODE_TXF_LZ:
+		args.opcode = opcode == TGSI_OPCODE_TXF_LZ ||
+			      target == TGSI_TEXTURE_2D_MSAA ||
+			      target == TGSI_TEXTURE_2D_ARRAY_MSAA ?
+				      ac_image_load : ac_image_load_mip;
+		args.compare = false;
+		args.offset = false;
+		break;
+	case TGSI_OPCODE_LODQ:
+		args.opcode = ac_image_get_lod;
+		args.compare = false;
+		args.offset = false;
+		break;
+	case TGSI_OPCODE_TEX:
+	case TGSI_OPCODE_TEX2:
+	case TGSI_OPCODE_TXP:
+		if (ctx->type != PIPE_SHADER_FRAGMENT)
+			args.level_zero = true;
+		break;
+	case TGSI_OPCODE_TEX_LZ:
+		args.level_zero = true;
+		break;
+	case TGSI_OPCODE_TXB:
+	case TGSI_OPCODE_TXB2:
+		assert(ctx->type == PIPE_SHADER_FRAGMENT);
+		args.bias = true;
+		break;
+	case TGSI_OPCODE_TXL:
+	case TGSI_OPCODE_TXL2:
+		args.lod = true;
+		break;
+	case TGSI_OPCODE_TXD:
+		args.deriv = true;
+		break;
+	case TGSI_OPCODE_TG4:
+		args.opcode = ac_image_gather4;
+		args.level_zero = true;
+		break;
+	default:
+		assert(0);
+		return;
+	}
+
+	/* The hardware needs special lowering for Gather4 with integer formats. */
+	if (ctx->screen->b.chip_class <= VI &&
+	    opcode == TGSI_OPCODE_TG4) {
+		struct tgsi_shader_info *info = &ctx->shader->selector->info;
+		/* This will also work with non-constant indexing because of how
+		 * glsl_to_tgsi works and we intent to preserve that behavior.
+		 */
+		const unsigned src_idx = 2;
+		unsigned sampler = inst->Src[src_idx].Register.Index;
+
+		assert(inst->Src[src_idx].Register.File == TGSI_FILE_SAMPLER);
+
+		if (info->sampler_type[sampler] == TGSI_RETURN_TYPE_SINT ||
+		    info->sampler_type[sampler] == TGSI_RETURN_TYPE_UINT)
+			si_lower_gather4_integer(ctx, &args, target);
+	}
+
+	emit_data->output[emit_data->chan] =
+		ac_build_image_opcode(&ctx->ac, &args);
+}
+
+static void si_llvm_emit_txqs(
+	const struct lp_build_tgsi_action *action,
+	struct lp_build_tgsi_context *bld_base,
+	struct lp_build_emit_data *emit_data)
+{
+	struct si_shader_context *ctx = si_shader_context(bld_base);
+	struct gallivm_state *gallivm = &ctx->gallivm;
+	LLVMBuilderRef builder = gallivm->builder;
+	LLVMValueRef res, samples;
+	LLVMValueRef res_ptr, samp_ptr, fmask_ptr = NULL;
+
+	tex_fetch_ptrs(bld_base, emit_data, &res_ptr, &samp_ptr, &fmask_ptr);
+
+
+	/* Read the samples from the descriptor directly. */
+	res = LLVMBuildBitCast(builder, res_ptr, ctx->v8i32, "");
+	samples = LLVMBuildExtractElement(
+		builder, res,
+		LLVMConstInt(ctx->i32, 3, 0), "");
+	samples = LLVMBuildLShr(builder, samples,
+				LLVMConstInt(ctx->i32, 16, 0), "");
+	samples = LLVMBuildAnd(builder, samples,
+			       LLVMConstInt(ctx->i32, 0xf, 0), "");
+	samples = LLVMBuildShl(builder, ctx->i32_1,
+			       samples, "");
+
+	emit_data->output[emit_data->chan] = samples;
+}
+
+static const struct lp_build_tgsi_action tex_action = {
+	.fetch_args = tex_fetch_args,
+	.emit = build_tex_intrinsic,
+};
+
+/**
+ * Setup actions for TGSI memory opcode, including texture opcodes.
+ */
+void si_shader_context_init_mem(struct si_shader_context *ctx)
+{
+	struct lp_build_tgsi_context *bld_base;
+	struct lp_build_tgsi_action tmpl = {};
+
+	bld_base = &ctx->bld_base;
+
+	bld_base->op_actions[TGSI_OPCODE_TEX] = tex_action;
+	bld_base->op_actions[TGSI_OPCODE_TEX_LZ] = tex_action;
+	bld_base->op_actions[TGSI_OPCODE_TEX2] = tex_action;
+	bld_base->op_actions[TGSI_OPCODE_TXB] = tex_action;
+	bld_base->op_actions[TGSI_OPCODE_TXB2] = tex_action;
+	bld_base->op_actions[TGSI_OPCODE_TXD] = tex_action;
+	bld_base->op_actions[TGSI_OPCODE_TXF] = tex_action;
+	bld_base->op_actions[TGSI_OPCODE_TXF_LZ] = tex_action;
+	bld_base->op_actions[TGSI_OPCODE_TXL] = tex_action;
+	bld_base->op_actions[TGSI_OPCODE_TXL2] = tex_action;
+	bld_base->op_actions[TGSI_OPCODE_TXP] = tex_action;
+	bld_base->op_actions[TGSI_OPCODE_TXQ].fetch_args = txq_fetch_args;
+	bld_base->op_actions[TGSI_OPCODE_TXQ].emit = txq_emit;
+	bld_base->op_actions[TGSI_OPCODE_TG4] = tex_action;
+	bld_base->op_actions[TGSI_OPCODE_LODQ] = tex_action;
+	bld_base->op_actions[TGSI_OPCODE_TXQS].emit = si_llvm_emit_txqs;
+
+	bld_base->op_actions[TGSI_OPCODE_LOAD].fetch_args = load_fetch_args;
+	bld_base->op_actions[TGSI_OPCODE_LOAD].emit = load_emit;
+	bld_base->op_actions[TGSI_OPCODE_STORE].fetch_args = store_fetch_args;
+	bld_base->op_actions[TGSI_OPCODE_STORE].emit = store_emit;
+	bld_base->op_actions[TGSI_OPCODE_RESQ].fetch_args = resq_fetch_args;
+	bld_base->op_actions[TGSI_OPCODE_RESQ].emit = resq_emit;
+
+	tmpl.fetch_args = atomic_fetch_args;
+	tmpl.emit = atomic_emit;
+	bld_base->op_actions[TGSI_OPCODE_ATOMUADD] = tmpl;
+	bld_base->op_actions[TGSI_OPCODE_ATOMUADD].intr_name = "add";
+	bld_base->op_actions[TGSI_OPCODE_ATOMXCHG] = tmpl;
+	bld_base->op_actions[TGSI_OPCODE_ATOMXCHG].intr_name = "swap";
+	bld_base->op_actions[TGSI_OPCODE_ATOMCAS] = tmpl;
+	bld_base->op_actions[TGSI_OPCODE_ATOMCAS].intr_name = "cmpswap";
+	bld_base->op_actions[TGSI_OPCODE_ATOMAND] = tmpl;
+	bld_base->op_actions[TGSI_OPCODE_ATOMAND].intr_name = "and";
+	bld_base->op_actions[TGSI_OPCODE_ATOMOR] = tmpl;
+	bld_base->op_actions[TGSI_OPCODE_ATOMOR].intr_name = "or";
+	bld_base->op_actions[TGSI_OPCODE_ATOMXOR] = tmpl;
+	bld_base->op_actions[TGSI_OPCODE_ATOMXOR].intr_name = "xor";
+	bld_base->op_actions[TGSI_OPCODE_ATOMUMIN] = tmpl;
+	bld_base->op_actions[TGSI_OPCODE_ATOMUMIN].intr_name = "umin";
+	bld_base->op_actions[TGSI_OPCODE_ATOMUMAX] = tmpl;
+	bld_base->op_actions[TGSI_OPCODE_ATOMUMAX].intr_name = "umax";
+	bld_base->op_actions[TGSI_OPCODE_ATOMIMIN] = tmpl;
+	bld_base->op_actions[TGSI_OPCODE_ATOMIMIN].intr_name = "smin";
+	bld_base->op_actions[TGSI_OPCODE_ATOMIMAX] = tmpl;
+	bld_base->op_actions[TGSI_OPCODE_ATOMIMAX].intr_name = "smax";
+}
diff --git a/src/gallium/drivers/radeonsi/si_shader_tgsi_setup.c b/src/gallium/drivers/radeonsi/si_shader_tgsi_setup.c
index f717299e78a..ad586c39c22 100644
--- a/src/gallium/drivers/radeonsi/si_shader_tgsi_setup.c
+++ b/src/gallium/drivers/radeonsi/si_shader_tgsi_setup.c
@@ -1277,6 +1277,7 @@ void si_llvm_context_init(struct si_shader_context *ctx,
 	bld_base->op_actions[TGSI_OPCODE_ENDLOOP].emit = endloop_emit;
 
 	si_shader_context_init_alu(&ctx->bld_base);
+	si_shader_context_init_mem(ctx);
 
 	ctx->voidt = LLVMVoidTypeInContext(ctx->gallivm.context);
 	ctx->i1 = LLVMInt1TypeInContext(ctx->gallivm.context);