diff options
Diffstat (limited to 'lib/Target/ARM/ARMRegisterInfo.cpp')
| -rw-r--r-- | lib/Target/ARM/ARMRegisterInfo.cpp | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/lib/Target/ARM/ARMRegisterInfo.cpp b/lib/Target/ARM/ARMRegisterInfo.cpp index 4890e3094f..16a1a29660 100644 --- a/lib/Target/ARM/ARMRegisterInfo.cpp +++ b/lib/Target/ARM/ARMRegisterInfo.cpp @@ -206,9 +206,11 @@ void ARMRegisterInfo::emitPrologue(MachineFunction &MF) const { MFI->setStackSize(NumBytes); - //sub sp, sp, #NumBytes - splitInstructionWithImmediate(MBB, MBBI, TII.get(ARM::SUB), ARM::R13, - ARM::R13, NumBytes); + if (NumBytes) { + //sub sp, sp, #NumBytes + splitInstructionWithImmediate(MBB, MBBI, TII.get(ARM::SUB), ARM::R13, + ARM::R13, NumBytes); + } if (HasFP) { @@ -234,9 +236,11 @@ void ARMRegisterInfo::emitEpilogue(MachineFunction &MF, BuildMI(MBB, MBBI, TII.get(ARM::LDR), ARM::R11).addReg(ARM::R13).addImm(0); } - //add sp, sp, #NumBytes - splitInstructionWithImmediate(MBB, MBBI, TII.get(ARM::ADD), ARM::R13, - ARM::R13, NumBytes); + if (NumBytes){ + //add sp, sp, #NumBytes + splitInstructionWithImmediate(MBB, MBBI, TII.get(ARM::ADD), ARM::R13, + ARM::R13, NumBytes); + } } |