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nir: Use instr/if_rewrite in nir_ssa_def_rewrite_uses

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nir_ssa_def_rewrite_uses is one of the older helpers in NIR and predated
both of those.  Now it can be substantially simplified.

Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
This commit is contained in:
Jason Ekstrand 2015-11-11 21:13:26 -08:00
parent 03c9ad900e
commit 384396a69b
1 changed files with 4 additions and 12 deletions
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16
src/glsl/nir/nir.c
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@ -1312,19 +1312,11 @@ nir_ssa_def_rewrite_uses(nir_ssa_def *def, nir_src new_src)
{
assert(!new_src.is_ssa || def != new_src.ssa);
nir_foreach_use_safe(def, use_src) {
nir_instr *src_parent_instr = use_src->parent_instr;
list_del(&use_src->use_link);
nir_src_copy(use_src, &new_src, src_parent_instr);
src_add_all_uses(use_src, src_parent_instr, NULL);
}
nir_foreach_use_safe(def, use_src)
nir_instr_rewrite_src(use_src->parent_instr, use_src, new_src);
nir_foreach_if_use_safe(def, use_src) {
nir_if *src_parent_if = use_src->parent_if;
list_del(&use_src->use_link);
nir_src_copy(use_src, &new_src, src_parent_if);
src_add_all_uses(use_src, NULL, src_parent_if);
}
nir_foreach_if_use_safe(def, use_src)
nir_if_rewrite_condition(use_src->parent_if, new_src);
}