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aco/insert_exec_mask: if applicable, use s_wqm to restore exec after divergent CF

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Totals from 4740 (5.97% of 79377) affected shaders: (Navi31)

Instrs: 6273963 -> 6273410 (-0.01%); split: -0.01%, +0.00%
CodeSize: 34306560 -> 34304284 (-0.01%); split: -0.01%, +0.00%
SpillSGPRs: 1793 -> 1797 (+0.22%); split: -0.11%, +0.33%
Latency: 62599300 -> 62598714 (-0.00%); split: -0.00%, +0.00%
InvThroughput: 9117199 -> 9117189 (-0.00%); split: -0.00%, +0.00%
SClause: 223548 -> 223529 (-0.01%); split: -0.02%, +0.01%
Copies: 464248 -> 454711 (-2.05%); split: -2.06%, +0.00%
Branches: 161446 -> 161443 (-0.00%); split: -0.00%, +0.00%
PreSGPRs: 226278 -> 225608 (-0.30%)
VALU: 3793235 -> 3793244 (+0.00%); split: -0.00%, +0.00%
SALU: 606184 -> 605759 (-0.07%); split: -0.08%, +0.01%
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33619>
This commit is contained in:
Daniel Schürmann
2025-02-18 10:31:04 +01:00
committed by Marge Bot
parent 69dcd5be3a
commit b872ff6ef2
1 changed files with 6 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
src/amd/compiler/aco_insert_exec_mask.cpp
View File

@@ -362,14 +362,19 @@ add_coupling_code(exec_ctx& ctx, Block* block, std::vector<aco_ptr<Instruction>>
}
if (ctx.handle_wqm) {
/* End WQM handling if not needed anymore */
if (block->kind & block_kind_top_level && ctx.info[idx].exec.size() == 2) {
/* End WQM handling if not needed anymore */
if (block->instructions[i]->opcode == aco_opcode::p_end_wqm) {
ctx.info[idx].exec.back().type |= mask_type_global;
transition_to_Exact(ctx, bld, idx);
ctx.handle_wqm = false;
restore_exec = false;
i++;
} else if (restore_exec && ctx.info[idx].exec[1].type & mask_type_global) {
/* Use s_wqm to restore exec after divergent CF in order to disable dead quads. */
bld.sop1(Builder::s_wqm, Definition(exec, bld.lm), bld.def(s1, scc),
ctx.info[idx].exec[0].op);
restore_exec = false;
}
}
}