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refactor(shader): compact paired 64-bit lowering

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This commit is contained in:
nmzik
2026-08-19 10:22:31 +02:00
parent 8063822243
commit 6e9f162bd4
19 changed files with 673 additions and 461 deletions
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src/graphics/shader/recompiler/backend/spirv/spirvEmitterFlow.cpp
+16 -7
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@@ -39,13 +39,22 @@ uint32_t EmitWqmWordU32(EmitterState& state, uint32_t value) {
}
uint32_t EmitWqmU64(EmitterState& state, uint32_t value) {
const auto low = state.builder.AllocateId();
const auto high = state.builder.AllocateId();
state.builder.AddFunction({OpCompositeExtract, TypeU32(state), low, value, 0});
state.builder.AddFunction({OpCompositeExtract, TypeU32(state), high, value, 1});
const auto result = state.builder.AllocateId();
state.builder.AddFunction({OpCompositeConstruct, TypeU32Pair(state), result,
EmitWqmWordU32(state, low), EmitWqmWordU32(state, high)});
const auto shifted_one = state.builder.AllocateId();
const auto merged_one = state.builder.AllocateId();
const auto shifted_two = state.builder.AllocateId();
const auto merged_two = state.builder.AllocateId();
const auto quad_bits = state.builder.AllocateId();
const auto result = state.builder.AllocateId();
state.builder.AddFunction({OpShiftRightLogical, TypeU64(state), shifted_one, value,
ConstantU64(state, 0x0000000100000001ull)});
state.builder.AddFunction({OpBitwiseOr, TypeU64(state), merged_one, value, shifted_one});
state.builder.AddFunction({OpShiftRightLogical, TypeU64(state), shifted_two, merged_one,
ConstantU64(state, 0x0000000200000002ull)});
state.builder.AddFunction({OpBitwiseOr, TypeU64(state), merged_two, merged_one, shifted_two});
state.builder.AddFunction({OpBitwiseAnd, TypeU64(state), quad_bits, merged_two,
ConstantU64(state, 0x1111111111111111ull)});
state.builder.AddFunction(
{OpIMul, TypeU64(state), result, quad_bits, ConstantU64(state, 0x0000000f0000000full)});
return result;
}