Fix use-of-uninitialized-value of ARMMachineFunctionInfo

Summary: Explicitly initialize ArgumentStackSize to prevent the msan failure.

Reviewers: rengolin

Subscribers: aemerson, rengolin, llvm-commits

Differential Revision: http://reviews.llvm.org/D20051

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@268868 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/ARMMachineFunctionInfo.cpp b/lib/Target/ARM/ARMMachineFunctionInfo.cpp
index 71ad7a4a732ad27e034da2c0b925f8f141a91cc1..b6dee9ff838546c670e353326f0521bd0ce8c4fc 100644 (file)
--- a/lib/Target/ARM/ARMMachineFunctionInfo.cpp
+++ b/lib/Target/ARM/ARMMachineFunctionInfo.cpp
@@ -21,4 +21,4 @@ ARMFunctionInfo::ARMFunctionInfo(MachineFunction &MF)
       FramePtrSpillOffset(0), GPRCS1Offset(0), GPRCS2Offset(0), DPRCSOffset(0),
       GPRCS1Size(0), GPRCS2Size(0), DPRCSSize(0),
       PICLabelUId(0), VarArgsFrameIndex(0), HasITBlocks(false),
-      IsSplitCSR(false) {}
+      ArgumentStackSize(0), IsSplitCSR(false) {}