diff options
| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-07-27 04:16:58 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-07-27 04:16:58 +0000 |
| commit | c3c05ed02e869dd844856af47316d9af82197f11 (patch) | |
| tree | ac6ec0753f502efa97745e9edc120bb9572c0034 /llvm/lib | |
| parent | 55442abee6a51f132de780eef47728e9fe8da9c1 (diff) | |
| download | bcm5719-llvm-c3c05ed02e869dd844856af47316d9af82197f11.tar.gz bcm5719-llvm-c3c05ed02e869dd844856af47316d9af82197f11.zip | |
Add assertions that expose the PR7713 miscompilation: Accessing a stack slot
with a too-big register class.
llvm-svn: 109488
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrInfo.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86InstrInfo.cpp b/llvm/lib/Target/X86/X86InstrInfo.cpp index 61266227db2..4d7faf96351 100644 --- a/llvm/lib/Target/X86/X86InstrInfo.cpp +++ b/llvm/lib/Target/X86/X86InstrInfo.cpp @@ -1998,6 +1998,8 @@ void X86InstrInfo::storeRegToStackSlot(MachineBasicBlock &MBB, const TargetRegisterClass *RC, const TargetRegisterInfo *TRI) const { const MachineFunction &MF = *MBB.getParent(); + assert(MF.getFrameInfo()->getObjectSize(FrameIdx) >= RC->getSize() && + "Stack slot too small for store"); bool isAligned = (RI.getStackAlignment() >= 16) || RI.canRealignStack(MF); unsigned Opc = getStoreRegOpcode(SrcReg, RC, isAligned, TM); DebugLoc DL = MBB.findDebugLoc(MI); @@ -2030,6 +2032,8 @@ void X86InstrInfo::loadRegFromStackSlot(MachineBasicBlock &MBB, const TargetRegisterClass *RC, const TargetRegisterInfo *TRI) const { const MachineFunction &MF = *MBB.getParent(); + assert(MF.getFrameInfo()->getObjectSize(FrameIdx) >= RC->getSize() && + "Stack slot too small for load"); bool isAligned = (RI.getStackAlignment() >= 16) || RI.canRealignStack(MF); unsigned Opc = getLoadRegOpcode(DestReg, RC, isAligned, TM); DebugLoc DL = MBB.findDebugLoc(MI); |
