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IR: introduce & use more add helpers

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so we can stash all the opts.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
This commit is contained in:
Alyssa Rosenzweig committed 2025-08-06 20:40:49 -04:00
1 parent c6324b83ea
commit f336261d6b
8 files changed
+52 -38
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FEXCore/Source/Interface/IR/Passes/x87StackOptimizationPass.cpp
+5 -10
View File
@@ -410,7 +410,7 @@ inline Ref X87StackOptimization::GetOffsetTopWithCache_Slow(uint8_t Offset) {
auto* OffsetTop = GetTopWithCache_Slow();
if (Offset != 0) {
OffsetTop = IREmit->_And(OpSize::i32Bit, IREmit->_Add(OpSize::i32Bit, OffsetTop, GetConstant(Offset)), GetConstant(7));
OffsetTop = IREmit->_And(OpSize::i32Bit, IREmit->Add(OpSize::i32Bit, OffsetTop, Offset), GetConstant(7));
// GetTopWithCache_Slow already sets the cache so we don't need to set it here for offset == 0
TopOffsetCache[Offset] = OffsetTop;
}
@@ -542,7 +542,7 @@ void X87StackOptimization::HandleBinopStack(IROps Op64, bool VFOp64, IROps Op80,
inline void X87StackOptimization::UpdateTopForPop_Slow() {
// Pop the top of the x87 stack
auto* TopOffset = GetTopWithCache_Slow();
TopOffset = IREmit->_Add(OpSize::i32Bit, TopOffset, GetConstant(1));
TopOffset = IREmit->Add(OpSize::i32Bit, TopOffset, 1);
TopOffset = IREmit->_And(OpSize::i32Bit, TopOffset, GetConstant(7));
SetTopWithCache_Slow(TopOffset);
}
@@ -550,7 +550,7 @@ inline void X87StackOptimization::UpdateTopForPop_Slow() {
inline void X87StackOptimization::UpdateTopForPush_Slow() {
// Pop the top of the x87 stack
auto* TopOffset = GetTopWithCache_Slow();
TopOffset = IREmit->_Sub(OpSize::i32Bit, TopOffset, GetConstant(1));
TopOffset = IREmit->Sub(OpSize::i32Bit, TopOffset, 1);
TopOffset = IREmit->_And(OpSize::i32Bit, TopOffset, GetConstant(7));
SetTopWithCache_Slow(TopOffset);
}
@@ -569,12 +569,7 @@ Ref X87StackOptimization::SynchronizeStackValues() {
if (TopOffset != 0) {
auto* OrigTop = GetTopWithCache_Slow();
Ref NewTop {};
if (TopOffset > 0) {
NewTop = IREmit->_And(OpSize::i32Bit, IREmit->_Sub(OpSize::i32Bit, OrigTop, GetConstant(TopOffset)), GetConstant(0x7));
} else {
NewTop = IREmit->_And(OpSize::i32Bit, IREmit->_Add(OpSize::i32Bit, OrigTop, GetConstant(-TopOffset)), GetConstant(0x7));
}
Ref NewTop = IREmit->_And(OpSize::i32Bit, IREmit->Sub(OpSize::i32Bit, OrigTop, TopOffset), GetConstant(0x7));
SetTopWithCache_Slow(NewTop);
}
StackData.TopOffset = 0;
@@ -832,7 +827,7 @@ void X87StackOptimization::Run(IREmitter* Emit) {
auto* TopValue = GetTopWithCache_Slow();
if (Offset != 0) {
auto* Mask = GetConstant(7);
TopValue = IREmit->_And(OpSize::i32Bit, IREmit->_Add(OpSize::i32Bit, TopValue, GetConstant(Offset)), Mask);
TopValue = IREmit->_And(OpSize::i32Bit, IREmit->Add(OpSize::i32Bit, TopValue, Offset), Mask);
}
SetX87ValidTag(TopValue, false);
} else {