diff options
Diffstat (limited to 'lib/Target/ARM/ARMBaseRegisterInfo.cpp')
| -rw-r--r-- | lib/Target/ARM/ARMBaseRegisterInfo.cpp | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/lib/Target/ARM/ARMBaseRegisterInfo.cpp b/lib/Target/ARM/ARMBaseRegisterInfo.cpp index a20887564f445..b18ed509ed23f 100644 --- a/lib/Target/ARM/ARMBaseRegisterInfo.cpp +++ b/lib/Target/ARM/ARMBaseRegisterInfo.cpp @@ -245,11 +245,18 @@ ARMBaseRegisterInfo::getRegPressureLimit(const TargetRegisterClass *RC, switch (RC->getID()) { default: return 0; - case ARM::tGPRRegClassID: - return TFI->hasFP(MF) ? 4 : 5; + case ARM::tGPRRegClassID: { + // hasFP ends up calling getMaxCallFrameComputed() which may not be + // available when getPressureLimit() is called as part of + // ScheduleDAGRRList. + bool HasFP = MF.getFrameInfo().isMaxCallFrameSizeComputed() + ? TFI->hasFP(MF) : true; + return 5 - HasFP; + } case ARM::GPRRegClassID: { - unsigned FP = TFI->hasFP(MF) ? 1 : 0; - return 10 - FP - (STI.isR9Reserved() ? 1 : 0); + bool HasFP = MF.getFrameInfo().isMaxCallFrameSizeComputed() + ? TFI->hasFP(MF) : true; + return 10 - HasFP - (STI.isR9Reserved() ? 1 : 0); } case ARM::SPRRegClassID: // Currently not used as 'rep' register class. case ARM::DPRRegClassID: |