diff options
Diffstat (limited to 'lib/Target/ARM/ARMBaseRegisterInfo.cpp')
-rw-r--r-- | lib/Target/ARM/ARMBaseRegisterInfo.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/Target/ARM/ARMBaseRegisterInfo.cpp b/lib/Target/ARM/ARMBaseRegisterInfo.cpp index 48e3c52460..7c42342229 100644 --- a/lib/Target/ARM/ARMBaseRegisterInfo.cpp +++ b/lib/Target/ARM/ARMBaseRegisterInfo.cpp @@ -626,10 +626,13 @@ bool ARMBaseRegisterInfo::hasBasePointer(const MachineFunction &MF) const { bool ARMBaseRegisterInfo::canRealignStack(const MachineFunction &MF) const { const MachineFrameInfo *MFI = MF.getFrameInfo(); + const ARMFunctionInfo *AFI = MF.getInfo<ARMFunctionInfo>(); // We can't realign the stack if: // 1. Dynamic stack realignment is explicitly disabled, - // 2. There are VLAs in the function and the base pointer is disabled. - return (RealignStack && (!MFI->hasVarSizedObjects() || EnableBasePointer)); + // 2. This is a Thumb1 function (it's not useful, so we don't bother), or + // 3. There are VLAs in the function and the base pointer is disabled. + return (RealignStack && !AFI->isThumb1OnlyFunction() && + (!MFI->hasVarSizedObjects() || EnableBasePointer)); } bool ARMBaseRegisterInfo:: |