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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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tests/shaderCfgTests.cpp
+2 -4
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@@ -10498,16 +10498,14 @@ bool LowerTypedPlanning(const uint32_t *code, uint32_t words,
ir.blocks.clear();
ShaderRecompiler::IR::RewriteToSsa(ir.values->blocks);
ShaderRecompiler::IR::ConstantPropagationPass(ir.values->blocks);
for (auto &info : ir.values->block_info) {
info.condition = info.condition.Resolve();
info.indirect_target = info.indirect_target.Resolve();
}
ShaderRecompiler::IR::ResolveControlFlowIdentities(*ir.values);
ShaderRecompiler::IR::RemoveIdentities(ir.values->blocks);
ShaderRecompiler::IR::EliminateDeadCode(ir.values->blocks);
const auto read_lane =
ShaderRecompiler::IR::EliminateReadLane(*ir.values, ir.wave_size);
if (read_lane.rewritten_reads != 0) {
ShaderRecompiler::IR::ConstantPropagationPass(ir.values->blocks);
ShaderRecompiler::IR::ResolveControlFlowIdentities(*ir.values);
ShaderRecompiler::IR::RemoveIdentities(ir.values->blocks);
ShaderRecompiler::IR::EliminateDeadCode(ir.values->blocks);
}