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IR: include a fence in CPUID

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easier for post-RA to chew thru.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
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Alyssa Rosenzweig committed 2025-07-02 13:04:49 -04:00
1 parent 62de1004df
commit 02f45854e8
2 files changed
+1 -1
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FEXCore/Source/Interface/Core/JIT/BranchOps.cpp
+1
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@@ -411,6 +411,7 @@ DEF_OP(ThreadRemoveCodeEntry) {
DEF_OP(CPUID) {
auto Op = IROp->C<IR::IROp_CPUID>();
isb();
mov(ARMEmitter::Size::i64Bit, TMP2, GetReg(Op->Function));
mov(ARMEmitter::Size::i64Bit, TMP3, GetReg(Op->Leaf));
FEXCore/Source/Interface/Core/OpcodeDispatcher.cpp
-1
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@@ -1311,7 +1311,6 @@ void OpDispatchBuilder::CPUIDOp(OpcodeArgs) {
Ref RCX = _AllocateGPR(false);
Ref RDX = _AllocateGPR(false);
_Fence({FEXCore::IR::Fence_Inst});
_CPUID(Src, Leaf, RAX, RBX, RCX, RDX);
StoreGPRRegister(X86State::REG_RAX, RAX);