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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
View File
@@ -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)) {
src/graphics/shader/recompiler/ir/passes/SrtWalker.cpp
+21 -28
View File
@@ -76,10 +76,10 @@ bool IsDescriptorHandle(ValueOpcode opcode) {
bool IsRuntimeIntegerOp(ValueOpcode op) {
switch (op) {
case ValueOpcode::CompositeConstructU64:
case ValueOpcode::CompositeExtractU64:
case ValueOpcode::CompositeConstructU32x2:
case ValueOpcode::CompositeExtractU32x2:
case ValueOpcode::PackUint2x32:
case ValueOpcode::UnpackUint2x32:
case ValueOpcode::BitFieldInsert:
case ValueOpcode::BitFieldUExtract:
case ValueOpcode::BitFieldSExtract:
@@ -100,7 +100,6 @@ bool IsRuntimeIntegerOp(ValueOpcode op) {
case ValueOpcode::BitwiseAnd32:
case ValueOpcode::BitwiseAnd64:
case ValueOpcode::BitwiseOr32:
case ValueOpcode::BitwiseOr64:
case ValueOpcode::BitwiseXor32:
case ValueOpcode::BitwiseNot32:
case ValueOpcode::SelectU1:
@@ -211,10 +210,10 @@ private:
reason = fmt::format("contains a non-scalar {}", ValueOpcodeName(op));
return finish(false);
}
} else if (op == ValueOpcode::PackUint2x32) {
const auto* pair = inst->NumArgs() == 1 ? inst->Arg(0).ResolveInstruction() : nullptr;
if (pair == nullptr || pair->GetOpcode() != ValueOpcode::CompositeConstructU32x2) {
reason = "contains an unsupported packed runtime value";
} else if (op == ValueOpcode::CompositeExtractU64) {
const auto index = inst->NumArgs() == 2 ? inst->Arg(1).Resolve() : Value {};
if (!index.IsImmediate() || index.GetType() != Type::U32 || index.U32() >= 2u) {
reason = "contains an invalid U64 component index";
return finish(false);
}
} else if (op == ValueOpcode::CompositeExtractU32x2) {
@@ -223,7 +222,6 @@ private:
if (source == nullptr || !index.IsImmediate() || index.GetType() != Type::U32 ||
index.U32() >= 2u ||
(source->GetOpcode() != ValueOpcode::CompositeConstructU32x2 &&
source->GetOpcode() != ValueOpcode::UnpackUint2x32 &&
source->GetOpcode() != ValueOpcode::IAddCarry32)) {
reason = "contains an unsupported composite runtime source";
return finish(false);
@@ -484,22 +482,25 @@ private:
if (!index.IsImmediate() || index.GetType() != Type::U32) {
return Fail(error, "dynamic composite extract in runtime expression");
}
const auto component = index.U32();
const auto* source = inst.Arg(0).ResolveInstruction();
if (source == nullptr || component >= 2u) {
const auto component = index.U32();
if (component >= 2u) {
return Fail(error, "unsupported composite runtime source");
}
if (source->GetOpcode() == ValueOpcode::CompositeConstructU32x2) {
return EvaluateWide(source->Arg(component), result, error);
}
if (source->GetOpcode() == ValueOpcode::UnpackUint2x32) {
if (inst.GetOpcode() == ValueOpcode::CompositeExtractU64) {
uint64_t packed = 0;
if (!Arg(*source, 0, packed, error)) {
if (!Arg(inst, 0, packed, error)) {
return false;
}
result = static_cast<uint32_t>(packed >> (component * 32u));
return true;
}
const auto* source = inst.Arg(0).ResolveInstruction();
if (source == nullptr) {
return Fail(error, "unsupported composite runtime source");
}
if (source->GetOpcode() == ValueOpcode::CompositeConstructU32x2) {
return EvaluateWide(source->Arg(component), result, error);
}
if (source->GetOpcode() == ValueOpcode::IAddCarry32) {
uint64_t lhs = 0;
uint64_t rhs = 0;
@@ -596,17 +597,15 @@ private:
}
case ValueOpcode::GetShaderBase: result = m_runtime.shader_base; return true;
case ValueOpcode::Phi: return EvaluatePhi(inst, result, error);
case ValueOpcode::CompositeExtractU64:
case ValueOpcode::CompositeExtractU32x2: return EvaluateExtract(inst, result, error);
case ValueOpcode::PackUint2x32: {
const auto* pair = inst.Arg(0).ResolveInstruction();
if (pair == nullptr || pair->GetOpcode() != ValueOpcode::CompositeConstructU32x2 ||
!Arg(*pair, 0, a, error) || !Arg(*pair, 1, b, error)) {
return Fail(error, "unsupported packed runtime value");
case ValueOpcode::CompositeConstructU64:
if (!binary()) {
return false;
}
result = static_cast<uint32_t>(a) |
(static_cast<uint64_t>(static_cast<uint32_t>(b)) << 32u);
return true;
}
case ValueOpcode::ReadConst: {
const auto slot = inst.Arg(1).Resolve();
if (!slot.IsImmediate() || slot.GetType() != Type::U32 ||
@@ -687,12 +686,6 @@ private:
return true;
}
return false;
case ValueOpcode::BitwiseOr64:
if (binary()) {
result = a | b;
return true;
}
return false;
case ValueOpcode::BitwiseXor32:
if (binary()) {
result = static_cast<uint32_t>(a ^ b);