diff options
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 17012fa5b0b..81772619aa5 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -23841,8 +23841,12 @@ X86TargetLowering::EmitSjLjDispatchBlock(MachineInstr *MI, Subtarget.getRegisterInfo()->getCalleeSavedRegs(MF); for (MachineBasicBlock *MBB : InvokeBBs) { // Remove the landing pad successor from the invoke block and replace it - // with the new dispatch block - for (auto MBBS : make_range(MBB->succ_rbegin(), MBB->succ_rend())) { + // with the new dispatch block. + // Keep a copy of Successors since it's modified inside the loop. + SmallVector<MachineBasicBlock *, 8> Successors(MBB->succ_rbegin(), + MBB->succ_rend()); + // FIXME: Avoid quadratic complexity. + for (auto MBBS : Successors) { if (MBBS->isEHPad()) { MBB->removeSuccessor(MBBS); MBBLPads.push_back(MBBS); |
