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nir: Make nir_build_alu() variants per 1-4 arg count.

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This saves a bunch of generated code to pack up the extra NULLs to get to
4 args, and saves executing the conditions in nir_build_alu() to then skip
those NULLs.

Saves another 27kb on disk.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13916>
This commit is contained in:
Emma Anholt
2021-11-22 11:45:23 -08:00
committed by Marge Bot
parent e770ec1182
commit 06fe04b4d7
3 changed files with 73 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/compiler/nir/nir_builder.c
+57
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@@ -140,6 +140,63 @@ nir_build_alu(nir_builder *build, nir_op op, nir_ssa_def *src0,
return nir_builder_alu_instr_finish_and_insert(build, instr);
}
nir_ssa_def *
nir_build_alu1(nir_builder *build, nir_op op, nir_ssa_def *src0)
{
nir_alu_instr *instr = nir_alu_instr_create(build->shader, op);
if (!instr)
return NULL;
instr->src[0].src = nir_src_for_ssa(src0);
return nir_builder_alu_instr_finish_and_insert(build, instr);
}
nir_ssa_def *
nir_build_alu2(nir_builder *build, nir_op op, nir_ssa_def *src0,
nir_ssa_def *src1)
{
nir_alu_instr *instr = nir_alu_instr_create(build->shader, op);
if (!instr)
return NULL;
instr->src[0].src = nir_src_for_ssa(src0);
instr->src[1].src = nir_src_for_ssa(src1);
return nir_builder_alu_instr_finish_and_insert(build, instr);
}
nir_ssa_def *
nir_build_alu3(nir_builder *build, nir_op op, nir_ssa_def *src0,
nir_ssa_def *src1, nir_ssa_def *src2)
{
nir_alu_instr *instr = nir_alu_instr_create(build->shader, op);
if (!instr)
return NULL;
instr->src[0].src = nir_src_for_ssa(src0);
instr->src[1].src = nir_src_for_ssa(src1);
instr->src[2].src = nir_src_for_ssa(src2);
return nir_builder_alu_instr_finish_and_insert(build, instr);
}
nir_ssa_def *
nir_build_alu4(nir_builder *build, nir_op op, nir_ssa_def *src0,
nir_ssa_def *src1, nir_ssa_def *src2, nir_ssa_def *src3)
{
nir_alu_instr *instr = nir_alu_instr_create(build->shader, op);
if (!instr)
return NULL;
instr->src[0].src = nir_src_for_ssa(src0);
instr->src[1].src = nir_src_for_ssa(src1);
instr->src[2].src = nir_src_for_ssa(src2);
instr->src[3].src = nir_src_for_ssa(src3);
return nir_builder_alu_instr_finish_and_insert(build, instr);
}
/* for the couple special cases with more than 4 src args: */
nir_ssa_def *
nir_build_alu_src_arr(nir_builder *build, nir_op op, nir_ssa_def **srcs)