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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/ir/passes/ConstantPropagation.cpp
+15 -36
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@@ -170,6 +170,10 @@ bool FoldCompositeExtract(Inst& inst, ValueOpcode construct, size_t components)
}
const auto component = index.U32();
const auto* producer = composite.TryInstruction();
if (IsImmediate(composite, Type::U64)) {
Replace(inst, Value(static_cast<uint32_t>(composite.U64() >> (component * 32u))));
return true;
}
if (producer != nullptr && producer->GetOpcode() == construct) {
Replace(inst, producer->Arg(component));
return true;
@@ -185,14 +189,6 @@ bool FoldCompositeExtract(Inst& inst, ValueOpcode construct, size_t components)
return true;
}
}
if (component < 2u && producer != nullptr &&
producer->GetOpcode() == ValueOpcode::UnpackUint2x32) {
const auto packed = producer->Arg(0).Resolve();
if (IsImmediate(packed, Type::U64)) {
Replace(inst, Value(static_cast<uint32_t>(packed.U64() >> (component * 32u))));
return true;
}
}
return false;
}
@@ -284,6 +280,9 @@ void FoldInstruction(Inst& inst) {
}
return;
}
case ValueOpcode::CompositeExtractU64:
FoldCompositeExtract(inst, ValueOpcode::CompositeConstructU64, 2);
return;
case ValueOpcode::CompositeExtractU32x2:
FoldCompositeExtract(inst, ValueOpcode::CompositeConstructU32x2, 2);
return;
@@ -293,27 +292,12 @@ void FoldInstruction(Inst& inst) {
case ValueOpcode::CompositeExtractU32x4:
FoldCompositeExtract(inst, ValueOpcode::CompositeConstructU32x4, 4);
return;
case ValueOpcode::PackUint2x32: {
const auto value = Arg(inst, 0);
const auto* producer = value.TryInstruction();
if (producer != nullptr && producer->GetOpcode() == ValueOpcode::UnpackUint2x32) {
Replace(inst, producer->Arg(0));
} else if (producer != nullptr &&
producer->GetOpcode() == ValueOpcode::CompositeConstructU32x2) {
const auto low = producer->Arg(0).Resolve();
const auto high = producer->Arg(1).Resolve();
if (IsImmediate(low, Type::U32) && IsImmediate(high, Type::U32)) {
Replace(inst, Value(static_cast<uint64_t>(low.U32()) |
(static_cast<uint64_t>(high.U32()) << 32u)));
}
}
return;
}
case ValueOpcode::UnpackUint2x32: {
const auto value = Arg(inst, 0);
const auto* producer = value.TryInstruction();
if (producer != nullptr && producer->GetOpcode() == ValueOpcode::PackUint2x32) {
Replace(inst, producer->Arg(0));
case ValueOpcode::CompositeConstructU64: {
const auto low = Arg(inst, 0);
const auto high = Arg(inst, 1);
if (IsImmediate(low, Type::U32) && IsImmediate(high, Type::U32)) {
Replace(inst, Value(static_cast<uint64_t>(low.U32()) |
(static_cast<uint64_t>(high.U32()) << 32u)));
}
return;
}
@@ -367,8 +351,8 @@ void FoldInstruction(Inst& inst) {
};
const auto low = expand(static_cast<uint32_t>(value.U64()));
const auto high = expand(static_cast<uint32_t>(value.U64() >> 32u));
Replace(inst, Value(static_cast<uint64_t>(low) |
(static_cast<uint64_t>(high) << 32u)));
Replace(inst,
Value(static_cast<uint64_t>(low) | (static_cast<uint64_t>(high) << 32u)));
}
return;
}
@@ -461,11 +445,6 @@ void FoldInstruction(Inst& inst) {
ReplaceBinaryIdentity(inst, Type::U32, 0u);
}
return;
case ValueOpcode::BitwiseOr64:
if (!FoldU64(inst, [](uint64_t a, uint64_t b) { return a | b; })) {
ReplaceBinaryIdentity(inst, Type::U64, 0u);
}
return;
case ValueOpcode::BitwiseNot32: {
const auto value = Arg(inst, 0);
if (IsImmediate(value, Type::U32)) {