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

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github-actions[bot] wrote:


<!--LLVM CODE FORMAT COMMENT: {clang-format}-->

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``````````bash
git-clang-format --diff feb7b1914d513c709b9e024dfed709bb889cc853 39a76d2db07f4c6eda9a0227da28d575553f7f6f -- llvm/include/llvm/CodeGen/TargetInstrInfo.h llvm/lib/Target/AArch64/AArch64InstrInfo.cpp llvm/lib/Target/AArch64/AArch64InstrInfo.h llvm/lib/Target/X86/X86InstrInfo.cpp llvm/lib/Target/X86/X86InstrInfo.h
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp b/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp
index 1faf0d73f5aa..a5c3c27a1c0e 100644
--- a/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp
+++ b/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp
@@ -9073,16 +9073,11 @@ void AArch64InstrInfo::buildClearRegister(Register Reg, MachineBasicBlock &MBB,
   const AArch64RegisterInfo &TRI = *STI.getRegisterInfo();
 
   if (TRI.isGeneralPurposeRegister(MF, Reg)) {
-    BuildMI(MBB, Iter, DL, get(AArch64::MOVZXi), Reg)
-        .addImm(0)
-        .addImm(0);
+    BuildMI(MBB, Iter, DL, get(AArch64::MOVZXi), Reg).addImm(0).addImm(0);
   } else if (STI.hasSVE()) {
-    BuildMI(MBB, Iter, DL, get(AArch64::DUP_ZI_D), Reg)
-        .addImm(0)
-        .addImm(0);
+    BuildMI(MBB, Iter, DL, get(AArch64::DUP_ZI_D), Reg).addImm(0).addImm(0);
   } else {
-    BuildMI(MBB, Iter, DL, get(AArch64::MOVIv2d_ns), Reg)
-        .addImm(0);
+    BuildMI(MBB, Iter, DL, get(AArch64::MOVIv2d_ns), Reg).addImm(0);
   }
 }
 

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