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nir/builder: Add a helper for creating undefs

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Reviewed-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Jason Ekstrand
2016-03-25 10:43:46 -07:00
parent 6a2479d618
commit 1be4c61c95
1 changed files with 14 additions and 0 deletions
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14
src/compiler/nir/nir_builder.h
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@@ -74,6 +74,20 @@ nir_builder_cf_insert(nir_builder *build, nir_cf_node *cf)
nir_cf_node_insert(build->cursor, cf); nir_cf_node_insert(build->cursor, cf);
} }
static inline nir_ssa_def *
nir_ssa_undef(nir_builder *build, unsigned num_components, unsigned bit_size)
{
nir_ssa_undef_instr *undef =
nir_ssa_undef_instr_create(build->shader, num_components);
undef->def.bit_size = bit_size;
if (!undef)
return NULL;
nir_instr_insert(nir_before_cf_list(&build->impl->body), &undef->instr);
return &undef->def;
}
static inline nir_ssa_def * static inline nir_ssa_def *
nir_build_imm(nir_builder *build, unsigned num_components, nir_const_value value) nir_build_imm(nir_builder *build, unsigned num_components, nir_const_value value)
{ {