diff options
| -rw-r--r-- | lib/Target/ARM/ARMBaseInstrInfo.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMBaseInstrInfo.cpp b/lib/Target/ARM/ARMBaseInstrInfo.cpp index d670178..5d012fc 100644 --- a/lib/Target/ARM/ARMBaseInstrInfo.cpp +++ b/lib/Target/ARM/ARMBaseInstrInfo.cpp @@ -295,6 +295,11 @@ ARMBaseInstrInfo::AnalyzeBranch(MachineBasicBlock &MBB,MachineBasicBlock *&TBB, if (!isUnpredicatedTerminator(I)) return false; + // Check whether the second-to-last branch is indirect, return + // 'unanalyzeable' here too. + if (I != MBB.begin() && prior(I)->isIndirectBranch()) + return true; + // If there is only one terminator instruction, process it. if (I == MBB.begin() || !isUnpredicatedTerminator(--I)) { if (isUncondBranchOpcode(LastOpc)) { @@ -322,6 +327,8 @@ ARMBaseInstrInfo::AnalyzeBranch(MachineBasicBlock &MBB,MachineBasicBlock *&TBB, LastInst->eraseFromParent(); LastInst = SecondLastInst; LastOpc = LastInst->getOpcode(); + if (I != MBB.begin() && prior(I)->isIndirectBranch()) + return true; // Indirect branches are unanalyzeable. if (I == MBB.begin() || !isUnpredicatedTerminator(--I)) { // Return now the only terminator is an unconditional branch. TBB = LastInst->getOperand(0).getMBB(); |