diff options
Diffstat (limited to 'llvm/lib/CodeGen/MachineInstr.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/MachineInstr.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/MachineInstr.cpp b/llvm/lib/CodeGen/MachineInstr.cpp index ebae5eb..c5c3f8c 100644 --- a/llvm/lib/CodeGen/MachineInstr.cpp +++ b/llvm/lib/CodeGen/MachineInstr.cpp @@ -1236,6 +1236,11 @@ bool MachineInstr::mayAlias(AAResults *AA, const MachineInstr &Other, const TargetInstrInfo *TII = MF->getSubtarget().getInstrInfo(); const MachineFrameInfo &MFI = MF->getFrameInfo(); + // Execulde call instruction which may alter the memory but can not be handled + // by this function. + if (isCall() || Other.isCall()) + return true; + // If neither instruction stores to memory, they can't alias in any // meaningful way, even if they read from the same address. if (!mayStore() && !Other.mayStore()) |