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-rw-r--r--src/compiler/glsl/glsl_to_nir.cpp2
-rw-r--r--src/gallium/auxiliary/util/u_math.h64
-rw-r--r--src/mesa/drivers/dri/i965/brw_cs.c2
-rw-r--r--src/mesa/drivers/dri/i965/brw_draw.c10
-rw-r--r--src/mesa/drivers/dri/i965/brw_fs_nir.cpp6
-rw-r--r--src/mesa/drivers/dri/i965/brw_program.c2
-rw-r--r--src/mesa/drivers/dri/i965/brw_shader.cpp2
-rw-r--r--src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp2
-rw-r--r--src/mesa/drivers/dri/i965/brw_wm_surface_state.c2
-rw-r--r--src/mesa/main/imports.h45
-rw-r--r--src/mesa/program/prog_to_nir.c6
-rw-r--r--src/util/bitscan.h68
12 files changed, 85 insertions, 126 deletions
diff --git a/src/compiler/glsl/glsl_to_nir.cpp b/src/compiler/glsl/glsl_to_nir.cpp
index 20302e399ac..d3cc5b44d64 100644
--- a/src/compiler/glsl/glsl_to_nir.cpp
+++ b/src/compiler/glsl/glsl_to_nir.cpp
@@ -146,7 +146,7 @@ glsl_to_nir(const struct gl_shader_program *shader_prog,
shader->info.name = ralloc_asprintf(shader, "GLSL%d", shader_prog->Name);
if (shader_prog->Label)
shader->info.label = ralloc_strdup(shader, shader_prog->Label);
- shader->info.num_textures = _mesa_fls(sh->Program->SamplersUsed);
+ shader->info.num_textures = util_last_bit(sh->Program->SamplersUsed);
shader->info.num_ubos = sh->NumUniformBlocks;
shader->info.num_abos = shader_prog->NumAtomicBuffers;
shader->info.num_ssbos = sh->NumShaderStorageBlocks;
diff --git a/src/gallium/auxiliary/util/u_math.h b/src/gallium/auxiliary/util/u_math.h
index 1661e63dbdd..a9232711bf1 100644
--- a/src/gallium/auxiliary/util/u_math.h
+++ b/src/gallium/auxiliary/util/u_math.h
@@ -347,70 +347,6 @@ util_half_inf_sign(int16_t x)
/**
- * Find last bit set in a word. The least significant bit is 1.
- * Return 0 if no bits are set.
- */
-static inline unsigned
-util_last_bit(unsigned u)
-{
-#if defined(HAVE___BUILTIN_CLZ)
- return u == 0 ? 0 : 32 - __builtin_clz(u);
-#else
- unsigned r = 0;
- while (u) {
- r++;
- u >>= 1;
- }
- return r;
-#endif
-}
-
-/**
- * Find last bit set in a word. The least significant bit is 1.
- * Return 0 if no bits are set.
- */
-static inline unsigned
-util_last_bit64(uint64_t u)
-{
-#if defined(HAVE___BUILTIN_CLZLL)
- return u == 0 ? 0 : 64 - __builtin_clzll(u);
-#else
- unsigned r = 0;
- while (u) {
- r++;
- u >>= 1;
- }
- return r;
-#endif
-}
-
-/**
- * Find last bit in a word that does not match the sign bit. The least
- * significant bit is 1.
- * Return 0 if no bits are set.
- */
-static inline unsigned
-util_last_bit_signed(int i)
-{
- if (i >= 0)
- return util_last_bit(i);
- else
- return util_last_bit(~(unsigned)i);
-}
-
-/* Returns a bitfield in which the first count bits starting at start are
- * set.
- */
-static inline unsigned
-u_bit_consecutive(unsigned start, unsigned count)
-{
- assert(start + count <= 32);
- if (count == 32)
- return ~0;
- return ((1u << count) - 1) << start;
-}
-
-/**
* Return float bits.
*/
static inline unsigned
diff --git a/src/mesa/drivers/dri/i965/brw_cs.c b/src/mesa/drivers/dri/i965/brw_cs.c
index 655adc14622..6685acde9d6 100644
--- a/src/mesa/drivers/dri/i965/brw_cs.c
+++ b/src/mesa/drivers/dri/i965/brw_cs.c
@@ -220,7 +220,7 @@ brw_upload_cs_prog(struct brw_context *brw)
return;
brw->cs.base.sampler_count =
- _mesa_fls(ctx->ComputeProgram._Current->Base.SamplersUsed);
+ util_last_bit(ctx->ComputeProgram._Current->Base.SamplersUsed);
brw_cs_populate_key(brw, &key);
diff --git a/src/mesa/drivers/dri/i965/brw_draw.c b/src/mesa/drivers/dri/i965/brw_draw.c
index d7a1ba35740..9b1e18c51cf 100644
--- a/src/mesa/drivers/dri/i965/brw_draw.c
+++ b/src/mesa/drivers/dri/i965/brw_draw.c
@@ -452,15 +452,15 @@ brw_try_draw_prims(struct gl_context *ctx,
* index.
*/
brw->wm.base.sampler_count =
- _mesa_fls(ctx->FragmentProgram._Current->Base.SamplersUsed);
+ util_last_bit(ctx->FragmentProgram._Current->Base.SamplersUsed);
brw->gs.base.sampler_count = ctx->GeometryProgram._Current ?
- _mesa_fls(ctx->GeometryProgram._Current->Base.SamplersUsed) : 0;
+ util_last_bit(ctx->GeometryProgram._Current->Base.SamplersUsed) : 0;
brw->tes.base.sampler_count = ctx->TessEvalProgram._Current ?
- _mesa_fls(ctx->TessEvalProgram._Current->Base.SamplersUsed) : 0;
+ util_last_bit(ctx->TessEvalProgram._Current->Base.SamplersUsed) : 0;
brw->tcs.base.sampler_count = ctx->TessCtrlProgram._Current ?
- _mesa_fls(ctx->TessCtrlProgram._Current->Base.SamplersUsed) : 0;
+ util_last_bit(ctx->TessCtrlProgram._Current->Base.SamplersUsed) : 0;
brw->vs.base.sampler_count =
- _mesa_fls(ctx->VertexProgram._Current->Base.SamplersUsed);
+ util_last_bit(ctx->VertexProgram._Current->Base.SamplersUsed);
intel_prepare_render(brw);
brw_predraw_set_aux_buffers(brw);
diff --git a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
index e1655a4c141..134cd0173d2 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
@@ -1845,7 +1845,7 @@ fs_visitor::emit_gs_control_data_bits(const fs_reg &vertex_count)
fs_reg prev_count = bld.vgrf(BRW_REGISTER_TYPE_UD, 1);
abld.ADD(prev_count, vertex_count, brw_imm_ud(0xffffffffu));
unsigned log2_bits_per_vertex =
- _mesa_fls(gs_compile->control_data_bits_per_vertex);
+ util_last_bit(gs_compile->control_data_bits_per_vertex);
abld.SHR(dword_index, prev_count, brw_imm_ud(6u - log2_bits_per_vertex));
if (per_slot_offset.file != BAD_FILE) {
@@ -2789,7 +2789,7 @@ fs_visitor::nir_emit_tcs_intrinsic(const fs_builder &bld,
if (mask == 0)
break;
- unsigned num_components = _mesa_fls(mask);
+ unsigned num_components = util_last_bit(mask);
enum opcode opcode;
/* We can only pack two 64-bit components in a single message, so send
@@ -4523,7 +4523,7 @@ fs_visitor::nir_emit_texture(const fs_builder &bld, nir_tex_instr *instr)
nir_ssa_def_components_read(&instr->dest.ssa):
(1 << dest_size) - 1;
assert(write_mask != 0); /* dead code should have been eliminated */
- inst->regs_written = _mesa_fls(write_mask) * dispatch_width / 8;
+ inst->regs_written = util_last_bit(write_mask) * dispatch_width / 8;
} else {
inst->regs_written = 4 * dispatch_width / 8;
}
diff --git a/src/mesa/drivers/dri/i965/brw_program.c b/src/mesa/drivers/dri/i965/brw_program.c
index 778549082fc..0e55c7ba18e 100644
--- a/src/mesa/drivers/dri/i965/brw_program.c
+++ b/src/mesa/drivers/dri/i965/brw_program.c
@@ -674,7 +674,7 @@ brw_setup_tex_for_precompile(struct brw_context *brw,
struct gl_program *prog)
{
const bool has_shader_channel_select = brw->is_haswell || brw->gen >= 8;
- unsigned sampler_count = _mesa_fls(prog->SamplersUsed);
+ unsigned sampler_count = util_last_bit(prog->SamplersUsed);
for (unsigned i = 0; i < sampler_count; i++) {
if (!has_shader_channel_select && (prog->ShadowSamplers & (1 << i))) {
/* Assume DEPTH_TEXTURE_MODE is the default: X, X, X, 1 */
diff --git a/src/mesa/drivers/dri/i965/brw_shader.cpp b/src/mesa/drivers/dri/i965/brw_shader.cpp
index 559e44c3627..62bad9bbd9f 100644
--- a/src/mesa/drivers/dri/i965/brw_shader.cpp
+++ b/src/mesa/drivers/dri/i965/brw_shader.cpp
@@ -1157,7 +1157,7 @@ brw_assign_common_binding_table_offsets(gl_shader_stage stage,
uint32_t next_binding_table_offset)
{
const struct gl_linked_shader *shader = NULL;
- int num_textures = _mesa_fls(prog->SamplersUsed);
+ int num_textures = util_last_bit(prog->SamplersUsed);
if (shader_prog)
shader = shader_prog->_LinkedShaders[stage];
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp
index 927438f9345..c5886d4fd0f 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp
@@ -334,7 +334,7 @@ vec4_gs_visitor::emit_control_data_bits()
emit(ADD(dst_reg(prev_count), this->vertex_count,
brw_imm_ud(0xffffffffu)));
unsigned log2_bits_per_vertex =
- _mesa_fls(c->control_data_bits_per_vertex);
+ util_last_bit(c->control_data_bits_per_vertex);
emit(SHR(dst_reg(dword_index), prev_count,
brw_imm_ud(6 - log2_bits_per_vertex)));
}
diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
index 9bee7dddbf8..a53f9da2498 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
@@ -998,7 +998,7 @@ update_stage_texture_surfaces(struct brw_context *brw,
else
surf_offset += stage_state->prog_data->binding_table.plane_start[plane];
- unsigned num_samplers = _mesa_fls(prog->SamplersUsed);
+ unsigned num_samplers = util_last_bit(prog->SamplersUsed);
for (unsigned s = 0; s < num_samplers; s++) {
surf_offset[s] = 0;
diff --git a/src/mesa/main/imports.h b/src/mesa/main/imports.h
index 05cc5cad593..21bcb10c006 100644
--- a/src/mesa/main/imports.h
+++ b/src/mesa/main/imports.h
@@ -339,51 +339,6 @@ extern unsigned int
_mesa_bitcount_64(uint64_t n);
#endif
-/**
- * Find the last (most significant) bit set in a word.
- *
- * Essentially ffs() in the reverse direction.
- */
-static inline unsigned int
-_mesa_fls(unsigned int n)
-{
-#ifdef HAVE___BUILTIN_CLZ
- return n == 0 ? 0 : 32 - __builtin_clz(n);
-#else
- unsigned int v = 1;
-
- if (n == 0)
- return 0;
-
- while (n >>= 1)
- v++;
-
- return v;
-#endif
-}
-
-/**
- * Find the last (most significant) bit set in a uint64_t value.
- *
- * Essentially ffsll() in the reverse direction.
- */
-static inline unsigned int
-_mesa_flsll(uint64_t n)
-{
-#ifdef HAVE___BUILTIN_CLZLL
- return n == 0 ? 0 : 64 - __builtin_clzll(n);
-#else
- unsigned int v = 1;
-
- if (n == 0)
- return 0;
-
- while (n >>= 1)
- v++;
-
- return v;
-#endif
-}
static inline bool
_mesa_half_is_negative(GLhalfARB h)
diff --git a/src/mesa/program/prog_to_nir.c b/src/mesa/program/prog_to_nir.c
index 9e01151a1c4..1efd1a1a381 100644
--- a/src/mesa/program/prog_to_nir.c
+++ b/src/mesa/program/prog_to_nir.c
@@ -887,7 +887,7 @@ setup_registers_and_variables(struct ptn_compile *c)
struct nir_shader *shader = b->shader;
/* Create input variables. */
- const int num_inputs = _mesa_flsll(c->prog->InputsRead);
+ const int num_inputs = util_last_bit64(c->prog->InputsRead);
for (int i = 0; i < num_inputs; i++) {
if (!(c->prog->InputsRead & BITFIELD64_BIT(i)))
continue;
@@ -948,7 +948,7 @@ setup_registers_and_variables(struct ptn_compile *c)
}
/* Create output registers and variables. */
- int max_outputs = _mesa_fls(c->prog->OutputsWritten);
+ int max_outputs = util_last_bit(c->prog->OutputsWritten);
c->output_regs = rzalloc_array(c, nir_register *, max_outputs);
for (int i = 0; i < max_outputs; i++) {
@@ -1043,7 +1043,7 @@ prog_to_nir(const struct gl_program *prog,
ptn_add_output_stores(c);
s->info.name = ralloc_asprintf(s, "ARB%d", prog->Id);
- s->info.num_textures = _mesa_fls(prog->SamplersUsed);
+ s->info.num_textures = util_last_bit(prog->SamplersUsed);
s->info.num_ubos = 0;
s->info.num_abos = 0;
s->info.num_ssbos = 0;
diff --git a/src/util/bitscan.h b/src/util/bitscan.h
index 4999b744d1d..0743fe7d321 100644
--- a/src/util/bitscan.h
+++ b/src/util/bitscan.h
@@ -29,6 +29,7 @@
#ifndef BITSCAN_H
#define BITSCAN_H
+#include <assert.h>
#include <stdint.h>
#if defined(_MSC_VER)
@@ -146,6 +147,73 @@ u_bit_scan_consecutive_range64(uint64_t *mask, int *start, int *count)
}
+/**
+ * Find last bit set in a word. The least significant bit is 1.
+ * Return 0 if no bits are set.
+ * Essentially ffs() in the reverse direction.
+ */
+static inline unsigned
+util_last_bit(unsigned u)
+{
+#if defined(HAVE___BUILTIN_CLZ)
+ return u == 0 ? 0 : 32 - __builtin_clz(u);
+#else
+ unsigned r = 0;
+ while (u) {
+ r++;
+ u >>= 1;
+ }
+ return r;
+#endif
+}
+
+/**
+ * Find last bit set in a word. The least significant bit is 1.
+ * Return 0 if no bits are set.
+ * Essentially ffsll() in the reverse direction.
+ */
+static inline unsigned
+util_last_bit64(uint64_t u)
+{
+#if defined(HAVE___BUILTIN_CLZLL)
+ return u == 0 ? 0 : 64 - __builtin_clzll(u);
+#else
+ unsigned r = 0;
+ while (u) {
+ r++;
+ u >>= 1;
+ }
+ return r;
+#endif
+}
+
+/**
+ * Find last bit in a word that does not match the sign bit. The least
+ * significant bit is 1.
+ * Return 0 if no bits are set.
+ */
+static inline unsigned
+util_last_bit_signed(int i)
+{
+ if (i >= 0)
+ return util_last_bit(i);
+ else
+ return util_last_bit(~(unsigned)i);
+}
+
+/* Returns a bitfield in which the first count bits starting at start are
+ * set.
+ */
+static inline unsigned
+u_bit_consecutive(unsigned start, unsigned count)
+{
+ assert(start + count <= 32);
+ if (count == 32)
+ return ~0;
+ return ((1u << count) - 1) << start;
+}
+
+
#ifdef __cplusplus
}
#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 22:59:33 +0000