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shader: preserve folded control-flow values

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This commit is contained in:
nmzik
2026-08-22 03:31:59 +02:00
parent 9241fdc32a
commit d581703ab4
5 changed files with 54 additions and 8 deletions
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src/graphics/shader/recompiler/ShaderRecompiler.cpp
+2 -4
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@@ -729,10 +729,7 @@ bool TryRecompile(std::span<const uint32_t> code, const CompileOptions& options,
ir.blocks.clear();
IR::RewriteToSsa(ir.values->blocks);
IR::ConstantPropagationPass(ir.values->blocks);
for (auto& info: ir.values->block_info) {
info.condition = info.condition.Resolve();
info.indirect_target = info.indirect_target.Resolve();
}
IR::ResolveControlFlowIdentities(*ir.values);
IR::RemoveIdentities(ir.values->blocks);
IR::EliminateDeadCode(ir.values->blocks);
const auto read_lane_stats = IR::EliminateReadLane(*ir.values, ir.wave_size);
@@ -740,6 +737,7 @@ bool TryRecompile(std::span<const uint32_t> code, const CompileOptions& options,
LOGF("%s read-lane elimination: reads=%" PRIu32 "\n", GetDumpLabel(options),
read_lane_stats.rewritten_reads);
IR::ConstantPropagationPass(ir.values->blocks);
IR::ResolveControlFlowIdentities(*ir.values);
IR::RemoveIdentities(ir.values->blocks);
IR::EliminateDeadCode(ir.values->blocks);
}