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nir: Return progress from nir_lower_64bit_pack().

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Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Matt Turner
2017-02-24 15:29:24 -08:00
parent 0012a6144a
commit adb157ddfd
2 changed files with 14 additions and 4 deletions
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2
src/compiler/nir/nir.h
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@@ -2568,7 +2568,7 @@ typedef enum {
} nir_lower_doubles_options; } nir_lower_doubles_options;
bool nir_lower_doubles(nir_shader *shader, nir_lower_doubles_options options); bool nir_lower_doubles(nir_shader *shader, nir_lower_doubles_options options);
void nir_lower_64bit_pack(nir_shader *shader); bool nir_lower_64bit_pack(nir_shader *shader);
bool nir_normalize_cubemap_coords(nir_shader *shader); bool nir_normalize_cubemap_coords(nir_shader *shader);

18
src/compiler/nir/nir_lower_64bit_packing.c
View File

@@ -48,11 +48,12 @@ lower_unpack_64(nir_builder *b, nir_ssa_def *src)
nir_unpack_64_2x32_split_y(b, src)); nir_unpack_64_2x32_split_y(b, src));
} }
static void static bool
lower_64bit_pack_impl(nir_function_impl *impl) lower_64bit_pack_impl(nir_function_impl *impl)
{ {
nir_builder b; nir_builder b;
nir_builder_init(&b, impl); nir_builder_init(&b, impl);
bool progress = false;
nir_foreach_block(block, impl) { nir_foreach_block(block, impl) {
nir_foreach_instr_safe(instr, block) { nir_foreach_instr_safe(instr, block) {
@@ -83,15 +84,24 @@ lower_64bit_pack_impl(nir_function_impl *impl)
nir_ssa_def_rewrite_uses(&alu_instr->dest.dest.ssa, nir_src_for_ssa(dest)); nir_ssa_def_rewrite_uses(&alu_instr->dest.dest.ssa, nir_src_for_ssa(dest));
nir_instr_remove(&alu_instr->instr); nir_instr_remove(&alu_instr->instr);
} nir_metadata_preserve(impl, nir_metadata_block_index |
nir_metadata_dominance);
progress = true;
} }
} }
void return progress;
}
bool
nir_lower_64bit_pack(nir_shader *shader) nir_lower_64bit_pack(nir_shader *shader)
{ {
bool progress = false;
nir_foreach_function(function, shader) { nir_foreach_function(function, shader) {
if (function->impl) if (function->impl)
lower_64bit_pack_impl(function->impl); progress |= lower_64bit_pack_impl(function->impl);
} }
return false;
} }