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| author | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2009-11-09 14:27:49 +0000 |
|---|---|---|
| committer | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2009-11-09 14:27:49 +0000 |
| commit | b8e0ebf034a473ac4a5ff477d4bf653b70c778a4 (patch) | |
| tree | a17c23c05ee48a32567c1765c1cb8f9c464e6b1a /lib | |
| parent | 47fc9d336619f45c0d6c80750cfbeb01b7dda207 (diff) | |
| download | external_llvm-b8e0ebf034a473ac4a5ff477d4bf653b70c778a4.zip external_llvm-b8e0ebf034a473ac4a5ff477d4bf653b70c778a4.tar.gz external_llvm-b8e0ebf034a473ac4a5ff477d4bf653b70c778a4.tar.bz2 | |
Fix PR5149.
http://llvm.org/bugs/show_bug.cgi?id=5149
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86543 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/Mips/MipsMachineFunction.h | 1 | ||||
| -rw-r--r-- | lib/Target/Mips/MipsRegisterInfo.cpp | 13 |
2 files changed, 6 insertions, 8 deletions
diff --git a/lib/Target/Mips/MipsMachineFunction.h b/lib/Target/Mips/MipsMachineFunction.h index 949c78a..a300f49 100644 --- a/lib/Target/Mips/MipsMachineFunction.h +++ b/lib/Target/Mips/MipsMachineFunction.h @@ -103,6 +103,7 @@ public: int getGPFI() const { return GPHolder.FI; } void setGPStackOffset(int Off) { GPHolder.SPOffset = Off; } void setGPFI(int FI) { GPHolder.FI = FI; } + bool needGPSaveRestore() const { return GPHolder.SPOffset != -1; } bool hasLoadArgs() const { return HasLoadArgs; } bool hasStoreVarArgs() const { return HasStoreVarArgs; } diff --git a/lib/Target/Mips/MipsRegisterInfo.cpp b/lib/Target/Mips/MipsRegisterInfo.cpp index d2289e9..e90bb3a 100644 --- a/lib/Target/Mips/MipsRegisterInfo.cpp +++ b/lib/Target/Mips/MipsRegisterInfo.cpp @@ -438,11 +438,10 @@ emitPrologue(MachineFunction &MF) const .addReg(Mips::SP).addReg(Mips::ZERO); } - // PIC speficic function prologue - if ((isPIC) && (MFI->hasCalls())) { + // Restore GP from the saved stack location + if (MipsFI->needGPSaveRestore()) BuildMI(MBB, MBBI, dl, TII.get(Mips::CPRESTORE)) .addImm(MipsFI->getGPStackOffset()); - } } void MipsRegisterInfo:: @@ -489,13 +488,11 @@ emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const void MipsRegisterInfo:: processFunctionBeforeFrameFinalized(MachineFunction &MF) const { - // Set the SPOffset on the FI where GP must be saved/loaded. + // Set the stack offset where GP must be saved/loaded from. MachineFrameInfo *MFI = MF.getFrameInfo(); - bool isPIC = (MF.getTarget().getRelocationModel() == Reloc::PIC_); - if (MFI->hasCalls() && isPIC) { - MipsFunctionInfo *MipsFI = MF.getInfo<MipsFunctionInfo>(); + MipsFunctionInfo *MipsFI = MF.getInfo<MipsFunctionInfo>(); + if (MipsFI->needGPSaveRestore()) MFI->setObjectOffset(MipsFI->getGPFI(), MipsFI->getGPStackOffset()); - } } unsigned MipsRegisterInfo:: |