diff options
Diffstat (limited to 'llvm/lib')
-rw-r--r-- | llvm/lib/Target/ARM/Thumb1RegisterInfo.cpp | 8 | ||||
-rw-r--r-- | llvm/lib/Target/ARM/Thumb2InstrInfo.cpp | 10 |
2 files changed, 13 insertions, 5 deletions
diff --git a/llvm/lib/Target/ARM/Thumb1RegisterInfo.cpp b/llvm/lib/Target/ARM/Thumb1RegisterInfo.cpp index 9f3816a862c..d6630ce29c1 100644 --- a/llvm/lib/Target/ARM/Thumb1RegisterInfo.cpp +++ b/llvm/lib/Target/ARM/Thumb1RegisterInfo.cpp @@ -479,11 +479,15 @@ Thumb1RegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II, "Thumb add/sub sp, #imm immediate must be multiple of 4!"); } - if (Offset == 0) { + unsigned PredReg; + if (Offset == 0 && getInstrPredicate(&MI, PredReg) == ARMCC::AL) { // Turn it into a move. MI.setDesc(TII.get(ARM::tMOVgpr2tgpr)); MI.getOperand(i).ChangeToRegister(FrameReg, false); - MI.RemoveOperand(i+1); + // Remove offset and remaining explicit predicate operands. + do MI.RemoveOperand(i+1); + while (MI.getNumOperands() > i+1 && + (!MI.getOperand(i+1).isReg() || !MI.getOperand(i+1).isImm())); return 0; } diff --git a/llvm/lib/Target/ARM/Thumb2InstrInfo.cpp b/llvm/lib/Target/ARM/Thumb2InstrInfo.cpp index f4a8c275bec..387edaf05d1 100644 --- a/llvm/lib/Target/ARM/Thumb2InstrInfo.cpp +++ b/llvm/lib/Target/ARM/Thumb2InstrInfo.cpp @@ -329,12 +329,16 @@ bool llvm::rewriteT2FrameIndex(MachineInstr &MI, unsigned FrameRegIdx, Offset += MI.getOperand(FrameRegIdx+1).getImm(); bool isSP = FrameReg == ARM::SP; - if (Offset == 0) { + unsigned PredReg; + if (Offset == 0 && getInstrPredicate(&MI, PredReg) == ARMCC::AL) { // Turn it into a move. MI.setDesc(TII.get(ARM::tMOVgpr2gpr)); MI.getOperand(FrameRegIdx).ChangeToRegister(FrameReg, false); - MI.RemoveOperand(FrameRegIdx+1); - Offset = 0; + // Remove offset and remaining explicit predicate operands. + do MI.RemoveOperand(FrameRegIdx+1); + while (MI.getNumOperands() > FrameRegIdx+1 && + (!MI.getOperand(FrameRegIdx+1).isReg() || + !MI.getOperand(FrameRegIdx+1).isImm())); return true; } |