[clang] [CodeGen] Avoid potential sideeffects from XOR (PR #67193)

[Nick Desaulniers via cfe-commits]

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@@ -574,8 +574,8 @@ class X86InstrInfo final : public X86GenInstrInfo {
                      outliner::Candidate &C) const override;
 
   void buildClearRegister(Register Reg, MachineBasicBlock &MBB,
-                          MachineBasicBlock::iterator Iter,
-                          DebugLoc &DL) const override;
+                          MachineBasicBlock::iterator Iter, DebugLoc &DL,
+                          bool NoSideEffects = false) const override;
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nickdesaulniers wrote:

Yeah, that SGTM

https://github.com/llvm/llvm-project/pull/67193
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