diff options
| -rw-r--r-- | lib/Target/ARM/ARMBaseRegisterInfo.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMBaseRegisterInfo.cpp b/lib/Target/ARM/ARMBaseRegisterInfo.cpp index 9ff9ae51a5..f5223760dd 100644 --- a/lib/Target/ARM/ARMBaseRegisterInfo.cpp +++ b/lib/Target/ARM/ARMBaseRegisterInfo.cpp @@ -36,8 +36,13 @@ #include "llvm/Target/TargetOptions.h" #include "llvm/ADT/BitVector.h" #include "llvm/ADT/SmallVector.h" +#include "llvm/Support/CommandLine.h" using namespace llvm; +static cl::opt<bool> +ReuseFrameIndexVals("arm-reuse-frame-index-vals", cl::Hidden, cl::init(true), + cl::desc("Reuse repeated frame index values")); + unsigned ARMBaseRegisterInfo::getRegisterNumbering(unsigned RegEnum, bool *isSPVFP) { if (isSPVFP) @@ -1088,6 +1093,8 @@ ARMBaseRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II, Offset, Pred, PredReg, TII); } MI.getOperand(i).ChangeToRegister(ScratchReg, false, false, true); + if (!ReuseFrameIndexVals) + ScratchReg = 0; } return ScratchReg; } |