[llvm] bd9ae59 - Initialize ExtAddrMode::Scale

[Vitaly Buka via llvm-commits]

Author: Vitaly Buka
Date: 2022-01-07T15:21:22-08:00
New Revision: bd9ae596d8635e36391be22f7ed74f77fb2d0371

URL: https://github.com/llvm/llvm-project/commit/bd9ae596d8635e36391be22f7ed74f77fb2d0371
DIFF: https://github.com/llvm/llvm-project/commit/bd9ae596d8635e36391be22f7ed74f77fb2d0371.diff

LOG: Initialize ExtAddrMode::Scale

Detected by msan with:
-Xclang -enable-noundef-analysis -mllvm -msan-eager-checks=1

Differential Revision: https://reviews.llvm.org/D116830

Added: 
    

Modified: 
    llvm/lib/Target/AArch64/AArch64InstrInfo.cpp

Removed: 
    


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diff  --git a/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp b/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp
index bbace97b76cb5..93c17133c8455 100644
--- a/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp
+++ b/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp
@@ -2574,6 +2574,7 @@ AArch64InstrInfo::getAddrModeFromMemoryOp(const MachineInstr &MemI,
   AM.BaseReg = Base->getReg();
   AM.Displacement = Offset;
   AM.ScaledReg = 0;
+  AM.Scale = 0;
   return AM;
 }