diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86InstrInfo.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrInfo.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/X86InstrInfo.cpp b/llvm/lib/Target/X86/X86InstrInfo.cpp index dcf9f6098ec..dfd299b799b 100644 --- a/llvm/lib/Target/X86/X86InstrInfo.cpp +++ b/llvm/lib/Target/X86/X86InstrInfo.cpp @@ -1488,7 +1488,8 @@ static bool isBrAnalysisUnpredicatedTerminator(const MachineInstr *MI, bool X86InstrInfo::AnalyzeBranch(MachineBasicBlock &MBB, MachineBasicBlock *&TBB, MachineBasicBlock *&FBB, - SmallVectorImpl<MachineOperand> &Cond) const { + SmallVectorImpl<MachineOperand> &Cond, + bool AllowModify) const { // Start from the bottom of the block and work up, examining the // terminator instructions. MachineBasicBlock::iterator I = MBB.end(); @@ -1504,6 +1505,11 @@ bool X86InstrInfo::AnalyzeBranch(MachineBasicBlock &MBB, return true; // Handle unconditional branches. if (I->getOpcode() == X86::JMP) { + if (!AllowModify) { + TBB = I->getOperand(0).getMBB(); + return false; + } + // If the block has any instructions after a JMP, delete them. while (next(I) != MBB.end()) next(I)->eraseFromParent(); |
