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nir: Add helper functions to get the instruction that generated a nir_src

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Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Thomas Helland <thomashelland90@gmail.com>
This commit is contained in:
Ian Romanick
2018-06-05 19:19:39 -07:00
parent 797e34f658
commit 10f4a8871e
1 changed files with 23 additions and 0 deletions
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23
src/compiler/nir/nir.h
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@@ -2520,6 +2520,29 @@ bool nir_foreach_dest(nir_instr *instr, nir_foreach_dest_cb cb, void *state);
bool nir_foreach_src(nir_instr *instr, nir_foreach_src_cb cb, void *state); bool nir_foreach_src(nir_instr *instr, nir_foreach_src_cb cb, void *state);
nir_const_value *nir_src_as_const_value(nir_src src); nir_const_value *nir_src_as_const_value(nir_src src);
static inline struct nir_instr *
nir_src_instr(const struct nir_src *src)
{
return src->is_ssa ? src->ssa->parent_instr : NULL;
}
#define NIR_SRC_AS_(name, c_type, type_enum, cast_macro) \
static inline c_type * \
nir_src_as_ ## name (struct nir_src *src) \
{ \
return src->is_ssa && src->ssa->parent_instr->type == type_enum \
? cast_macro(src->ssa->parent_instr) : NULL; \
} \
static inline const c_type * \
nir_src_as_ ## name ## _const(const struct nir_src *src) \
{ \
return src->is_ssa && src->ssa->parent_instr->type == type_enum \
? cast_macro(src->ssa->parent_instr) : NULL; \
}
NIR_SRC_AS_(alu_instr, nir_alu_instr, nir_instr_type_alu, nir_instr_as_alu)
bool nir_src_is_dynamically_uniform(nir_src src); bool nir_src_is_dynamically_uniform(nir_src src);
bool nir_srcs_equal(nir_src src1, nir_src src2); bool nir_srcs_equal(nir_src src1, nir_src src2);
void nir_instr_rewrite_src(nir_instr *instr, nir_src *src, nir_src new_src); void nir_instr_rewrite_src(nir_instr *instr, nir_src *src, nir_src new_src);