OpenHarmony/third_party_mesa3d
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

nir: constant fold inverse_ballot

Browse Source 
Foz-DB Navi21:
Totals from 210 (0.26% of 79395) affected shaders:
Instrs: 79583 -> 78892 (-0.87%)
CodeSize: 435636 -> 431680 (-0.91%)
VGPRs: 7208 -> 7224 (+0.22%)
Latency: 660376 -> 658808 (-0.24%); split: -0.38%, +0.14%
InvThroughput: 127489 -> 127544 (+0.04%); split: -0.35%, +0.39%
VClause: 1503 -> 1504 (+0.07%)
SClause: 3970 -> 3947 (-0.58%)
Copies: 4932 -> 4682 (-5.07%); split: -5.17%, +0.10%
Branches: 2411 -> 2406 (-0.21%); split: -0.33%, +0.12%
PreSGPRs: 6395 -> 6434 (+0.61%); split: -0.31%, +0.92%
PreVGPRs: 4100 -> 4103 (+0.07%)
VALU: 48484 -> 48145 (-0.70%); split: -0.70%, +0.00%
SALU: 12499 -> 12202 (-2.38%); split: -2.41%, +0.03%
SMEM: 6448 -> 6420 (-0.43%)

Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30235>
This commit is contained in:
Georg Lehmann
2024-07-17 22:42:33 +02:00
committed by Marge Bot
parent efb9258814
commit aa6d363634
1 changed files with 17 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
src/compiler/nir/nir_opt_constant_folding.c
View File

@@ -281,6 +281,23 @@ try_fold_intrinsic(nir_builder *b, nir_intrinsic_instr *intrin,
} }
return false; return false;
case nir_intrinsic_inverse_ballot: {
if (!nir_src_is_const(intrin->src[0]))
return false;
bool constant_true = true;
bool constant_false = true;
for (unsigned i = 0; i < nir_src_num_components(intrin->src[0]); i++) {
int64_t value = nir_src_comp_as_int(intrin->src[0], i);
constant_true &= value == -1;
constant_false &= value == 0;
}
if (!constant_true && !constant_false)
return false;
b->cursor = nir_before_instr(&intrin->instr);
nir_def_replace(&intrin->def, nir_imm_bool(b, constant_true));
return true;
}
default: default:
return false; return false;
} }