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-rw-r--r--src/glsl/nir/nir_builder.h364
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diff --git a/src/glsl/nir/nir_builder.h b/src/glsl/nir/nir_builder.h
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--- a/src/glsl/nir/nir_builder.h
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@@ -1,364 +0,0 @@
-/*
- * Copyright © 2014-2015 Broadcom
- *
- * 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
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * 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 NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS 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.
- */
-
-#ifndef NIR_BUILDER_H
-#define NIR_BUILDER_H
-
-#include "nir_control_flow.h"
-
-struct exec_list;
-
-typedef struct nir_builder {
- nir_cursor cursor;
-
- nir_shader *shader;
- nir_function_impl *impl;
-} nir_builder;
-
-static inline void
-nir_builder_init(nir_builder *build, nir_function_impl *impl)
-{
- memset(build, 0, sizeof(*build));
- build->impl = impl;
- build->shader = impl->function->shader;
-}
-
-static inline void
-nir_builder_init_simple_shader(nir_builder *build, void *mem_ctx,
- gl_shader_stage stage,
- const nir_shader_compiler_options *options)
-{
- build->shader = nir_shader_create(mem_ctx, stage, options);
- nir_function *func = nir_function_create(build->shader, "main");
- build->impl = nir_function_impl_create(func);
- build->cursor = nir_after_cf_list(&build->impl->body);
-}
-
-static inline void
-nir_builder_instr_insert(nir_builder *build, nir_instr *instr)
-{
- nir_instr_insert(build->cursor, instr);
-
- /* Move the cursor forward. */
- build->cursor = nir_after_instr(instr);
-}
-
-static inline void
-nir_builder_cf_insert(nir_builder *build, nir_cf_node *cf)
-{
- nir_cf_node_insert(build->cursor, cf);
-}
-
-static inline nir_ssa_def *
-nir_build_imm(nir_builder *build, unsigned num_components, nir_const_value value)
-{
- nir_load_const_instr *load_const =
- nir_load_const_instr_create(build->shader, num_components);
- if (!load_const)
- return NULL;
-
- load_const->value = value;
-
- nir_builder_instr_insert(build, &load_const->instr);
-
- return &load_const->def;
-}
-
-static inline nir_ssa_def *
-nir_imm_float(nir_builder *build, float x)
-{
- nir_const_value v;
-
- memset(&v, 0, sizeof(v));
- v.f[0] = x;
-
- return nir_build_imm(build, 1, v);
-}
-
-static inline nir_ssa_def *
-nir_imm_vec4(nir_builder *build, float x, float y, float z, float w)
-{
- nir_const_value v;
-
- memset(&v, 0, sizeof(v));
- v.f[0] = x;
- v.f[1] = y;
- v.f[2] = z;
- v.f[3] = w;
-
- return nir_build_imm(build, 4, v);
-}
-
-static inline nir_ssa_def *
-nir_imm_int(nir_builder *build, int x)
-{
- nir_const_value v;
-
- memset(&v, 0, sizeof(v));
- v.i[0] = x;
-
- return nir_build_imm(build, 1, v);
-}
-
-static inline nir_ssa_def *
-nir_imm_ivec4(nir_builder *build, int x, int y, int z, int w)
-{
- nir_const_value v;
-
- memset(&v, 0, sizeof(v));
- v.i[0] = x;
- v.i[1] = y;
- v.i[2] = z;
- v.i[3] = w;
-
- return nir_build_imm(build, 4, v);
-}
-
-static inline nir_ssa_def *
-nir_build_alu(nir_builder *build, nir_op op, nir_ssa_def *src0,
- nir_ssa_def *src1, nir_ssa_def *src2, nir_ssa_def *src3)
-{
- const nir_op_info *op_info = &nir_op_infos[op];
- nir_alu_instr *instr = nir_alu_instr_create(build->shader, op);
- if (!instr)
- return NULL;
-
- instr->src[0].src = nir_src_for_ssa(src0);
- if (src1)
- instr->src[1].src = nir_src_for_ssa(src1);
- if (src2)
- instr->src[2].src = nir_src_for_ssa(src2);
- if (src3)
- instr->src[3].src = nir_src_for_ssa(src3);
-
- /* Guess the number of components the destination temporary should have
- * based on our input sizes, if it's not fixed for the op.
- */
- unsigned num_components = op_info->output_size;
- if (num_components == 0) {
- for (unsigned i = 0; i < op_info->num_inputs; i++) {
- if (op_info->input_sizes[i] == 0)
- num_components = MAX2(num_components,
- instr->src[i].src.ssa->num_components);
- }
- }
- assert(num_components != 0);
-
- /* Make sure we don't swizzle from outside of our source vector (like if a
- * scalar value was passed into a multiply with a vector).
- */
- for (unsigned i = 0; i < op_info->num_inputs; i++) {
- for (unsigned j = instr->src[i].src.ssa->num_components; j < 4; j++) {
- instr->src[i].swizzle[j] = instr->src[i].src.ssa->num_components - 1;
- }
- }
-
- nir_ssa_dest_init(&instr->instr, &instr->dest.dest, num_components, NULL);
- instr->dest.write_mask = (1 << num_components) - 1;
-
- nir_builder_instr_insert(build, &instr->instr);
-
- return &instr->dest.dest.ssa;
-}
-
-#define ALU1(op) \
-static inline nir_ssa_def * \
-nir_##op(nir_builder *build, nir_ssa_def *src0) \
-{ \
- return nir_build_alu(build, nir_op_##op, src0, NULL, NULL, NULL); \
-}
-
-#define ALU2(op) \
-static inline nir_ssa_def * \
-nir_##op(nir_builder *build, nir_ssa_def *src0, nir_ssa_def *src1) \
-{ \
- return nir_build_alu(build, nir_op_##op, src0, src1, NULL, NULL); \
-}
-
-#define ALU3(op) \
-static inline nir_ssa_def * \
-nir_##op(nir_builder *build, nir_ssa_def *src0, \
- nir_ssa_def *src1, nir_ssa_def *src2) \
-{ \
- return nir_build_alu(build, nir_op_##op, src0, src1, src2, NULL); \
-}
-
-#define ALU4(op) \
-static inline nir_ssa_def * \
-nir_##op(nir_builder *build, nir_ssa_def *src0, \
- nir_ssa_def *src1, nir_ssa_def *src2, nir_ssa_def *src3) \
-{ \
- return nir_build_alu(build, nir_op_##op, src0, src1, src2, src3); \
-}
-
-#include "nir_builder_opcodes.h"
-
-static inline nir_ssa_def *
-nir_vec(nir_builder *build, nir_ssa_def **comp, unsigned num_components)
-{
- switch (num_components) {
- case 4:
- return nir_vec4(build, comp[0], comp[1], comp[2], comp[3]);
- case 3:
- return nir_vec3(build, comp[0], comp[1], comp[2]);
- case 2:
- return nir_vec2(build, comp[0], comp[1]);
- case 1:
- return comp[0];
- default:
- unreachable("bad component count");
- return NULL;
- }
-}
-
-/**
- * Similar to nir_fmov, but takes a nir_alu_src instead of a nir_ssa_def.
- */
-static inline nir_ssa_def *
-nir_fmov_alu(nir_builder *build, nir_alu_src src, unsigned num_components)
-{
- nir_alu_instr *mov = nir_alu_instr_create(build->shader, nir_op_fmov);
- nir_ssa_dest_init(&mov->instr, &mov->dest.dest, num_components, NULL);
- mov->dest.write_mask = (1 << num_components) - 1;
- mov->src[0] = src;
- nir_builder_instr_insert(build, &mov->instr);
-
- return &mov->dest.dest.ssa;
-}
-
-static inline nir_ssa_def *
-nir_imov_alu(nir_builder *build, nir_alu_src src, unsigned num_components)
-{
- nir_alu_instr *mov = nir_alu_instr_create(build->shader, nir_op_imov);
- nir_ssa_dest_init(&mov->instr, &mov->dest.dest, num_components, NULL);
- mov->dest.write_mask = (1 << num_components) - 1;
- mov->src[0] = src;
- nir_builder_instr_insert(build, &mov->instr);
-
- return &mov->dest.dest.ssa;
-}
-
-/**
- * Construct an fmov or imov that reswizzles the source's components.
- */
-static inline nir_ssa_def *
-nir_swizzle(nir_builder *build, nir_ssa_def *src, unsigned swiz[4],
- unsigned num_components, bool use_fmov)
-{
- nir_alu_src alu_src = { NIR_SRC_INIT };
- alu_src.src = nir_src_for_ssa(src);
- for (unsigned i = 0; i < num_components; i++)
- alu_src.swizzle[i] = swiz[i];
-
- return use_fmov ? nir_fmov_alu(build, alu_src, num_components) :
- nir_imov_alu(build, alu_src, num_components);
-}
-
-static inline nir_ssa_def *
-nir_channel(nir_builder *b, nir_ssa_def *def, unsigned c)
-{
- unsigned swizzle[4] = {c, c, c, c};
- return nir_swizzle(b, def, swizzle, 1, false);
-}
-
-/**
- * Turns a nir_src into a nir_ssa_def * so it can be passed to
- * nir_build_alu()-based builder calls.
- *
- * See nir_ssa_for_alu_src() for alu instructions.
- */
-static inline nir_ssa_def *
-nir_ssa_for_src(nir_builder *build, nir_src src, int num_components)
-{
- if (src.is_ssa && src.ssa->num_components == num_components)
- return src.ssa;
-
- nir_alu_src alu = { NIR_SRC_INIT };
- alu.src = src;
- for (int j = 0; j < 4; j++)
- alu.swizzle[j] = j;
-
- return nir_imov_alu(build, alu, num_components);
-}
-
-/**
- * Similar to nir_ssa_for_src(), but for alu src's, respecting the
- * nir_alu_src's swizzle.
- */
-static inline nir_ssa_def *
-nir_ssa_for_alu_src(nir_builder *build, nir_alu_instr *instr, unsigned srcn)
-{
- static uint8_t trivial_swizzle[4] = { 0, 1, 2, 3 };
- nir_alu_src *src = &instr->src[srcn];
- unsigned num_components = nir_ssa_alu_instr_src_components(instr, srcn);
-
- if (src->src.is_ssa && (src->src.ssa->num_components == num_components) &&
- !src->abs && !src->negate &&
- (memcmp(src->swizzle, trivial_swizzle, num_components) == 0))
- return src->src.ssa;
-
- return nir_imov_alu(build, *src, num_components);
-}
-
-static inline nir_ssa_def *
-nir_load_var(nir_builder *build, nir_variable *var)
-{
- const unsigned num_components = glsl_get_vector_elements(var->type);
-
- nir_intrinsic_instr *load =
- nir_intrinsic_instr_create(build->shader, nir_intrinsic_load_var);
- load->num_components = num_components;
- load->variables[0] = nir_deref_var_create(load, var);
- nir_ssa_dest_init(&load->instr, &load->dest, num_components, NULL);
- nir_builder_instr_insert(build, &load->instr);
- return &load->dest.ssa;
-}
-
-static inline void
-nir_store_var(nir_builder *build, nir_variable *var, nir_ssa_def *value,
- unsigned writemask)
-{
- const unsigned num_components = glsl_get_vector_elements(var->type);
-
- nir_intrinsic_instr *store =
- nir_intrinsic_instr_create(build->shader, nir_intrinsic_store_var);
- store->num_components = num_components;
- store->const_index[0] = writemask;
- store->variables[0] = nir_deref_var_create(store, var);
- store->src[0] = nir_src_for_ssa(value);
- nir_builder_instr_insert(build, &store->instr);
-}
-
-static inline nir_ssa_def *
-nir_load_system_value(nir_builder *build, nir_intrinsic_op op, int index)
-{
- nir_intrinsic_instr *load = nir_intrinsic_instr_create(build->shader, op);
- load->num_components = nir_intrinsic_infos[op].dest_components;
- load->const_index[0] = index;
- nir_ssa_dest_init(&load->instr, &load->dest,
- nir_intrinsic_infos[op].dest_components, NULL);
- nir_builder_instr_insert(build, &load->instr);
- return &load->dest.ssa;
-}
-
-#endif /* NIR_BUILDER_H */
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