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nir: move tex_instr_remove_src

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I want to re-use this in a different pass, so move to nir.h

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Rob Clark
2016-09-08 14:07:06 -04:00
parent 2c3f966276
commit 1a8424ceba
3 changed files with 20 additions and 18 deletions
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16
src/compiler/nir/nir.c
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@@ -536,6 +536,22 @@ nir_tex_instr_create(nir_shader *shader, unsigned num_srcs)
return instr;
}
void
nir_tex_instr_remove_src(nir_tex_instr *tex, unsigned src_idx)
{
assert(src_idx < tex->num_srcs);
/* First rewrite the source to NIR_SRC_INIT */
nir_instr_rewrite_src(&tex->instr, &tex->src[src_idx].src, NIR_SRC_INIT);
/* Now, move all of the other sources down */
for (unsigned i = src_idx + 1; i < tex->num_srcs; i++) {
tex->src[i-1].src_type = tex->src[i].src_type;
nir_instr_move_src(&tex->instr, &tex->src[i-1].src, &tex->src[i].src);
}
tex->num_srcs--;
}
nir_phi_instr *
nir_phi_instr_create(nir_shader *shader)
{