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refactor(shader): emit structured phis natively

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nmzik
2026-08-19 05:25:28 +02:00
parent d34e30d892
commit 49145c1902
11 changed files with 667 additions and 172 deletions
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src/graphics/shader/recompiler/backend/spirv/spirvEmitterImage.cpp
+3 -3
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@@ -589,17 +589,17 @@ bool EmitValueImage(ValueEmitContext& ctx, const IR::Inst& inst) {
state.builder.AddFunction({OpSelectionMerge, merge_label, SelectionControlNone});
state.builder.AddFunction(switch_words);
std::vector<uint32_t> phi_words {OpPhi, result_type, state.builder.AllocateId()};
state.builder.AddFunction({OpLabel, default_label});
EmitLabel(state, default_label);
phi_words.push_back(EmitSample(image.indirect_resources[0]));
phi_words.push_back(default_label);
state.builder.AddFunction({OpBranch, merge_label});
for (uint32_t candidate = 1; candidate < image.indirect_resources.size(); candidate++) {
state.builder.AddFunction({OpLabel, labels[candidate - 1u]});
EmitLabel(state, labels[candidate - 1u]);
phi_words.push_back(EmitSample(image.indirect_resources[candidate]));
phi_words.push_back(labels[candidate - 1u]);
state.builder.AddFunction({OpBranch, merge_label});
}
state.builder.AddFunction({OpLabel, merge_label});
EmitLabel(state, merge_label);
state.builder.AddFunction(phi_words);
ctx.Define(inst, ResultVector(ctx, phi_words[2], integer, dref));
return true;