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| author | Alexey Samsonov <vonosmas@gmail.com> | 2015-12-02 21:25:28 +0000 |
|---|---|---|
| committer | Alexey Samsonov <vonosmas@gmail.com> | 2015-12-02 21:25:28 +0000 |
| commit | 39b7d65d8239fc48db900250f34a9aa8adb48638 (patch) | |
| tree | 4c45cb29c6d11670f41dde81a1e2d31cfe1649d6 /llvm/lib | |
| parent | bcfabaa05bc45d33e9ff60dca769150453956e83 (diff) | |
| download | bcm5719-llvm-39b7d65d8239fc48db900250f34a9aa8adb48638.tar.gz bcm5719-llvm-39b7d65d8239fc48db900250f34a9aa8adb48638.zip | |
[PowerPC] Remove wild call to RegScavenger::initRegState().
This call should in fact be made by RegScavenger::enterBasicBlock()
called below. The first call does nothing except for triggering UB,
indicated by UBSan (passing nullptr to memset()).
llvm-svn: 254548
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCFrameLowering.cpp | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCFrameLowering.cpp b/llvm/lib/Target/PowerPC/PPCFrameLowering.cpp index 5a151eb6ab2..174deb88bc5 100644 --- a/llvm/lib/Target/PowerPC/PPCFrameLowering.cpp +++ b/llvm/lib/Target/PowerPC/PPCFrameLowering.cpp @@ -569,8 +569,7 @@ bool PPCFrameLowering::findScratchRegister(MachineBasicBlock *MBB, if ((UseAtEnd && MBB->isReturnBlock()) || (!UseAtEnd && (&MBB->getParent()->front() == MBB))) return true; - - RS.initRegState(); + RS.enterBasicBlock(MBB); if (UseAtEnd && !MBB->empty()) { |
