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| author | Reed Kotler <rkotler@mips.com> | 2013-08-04 23:56:53 +0000 |
|---|---|---|
| committer | Reed Kotler <rkotler@mips.com> | 2013-08-04 23:56:53 +0000 |
| commit | 25278aa26fa498e41830946b2138f01473269df2 (patch) | |
| tree | 7a25d7e59a98c229332cb85d9254aac4ac46fb8d /lib/Target/Mips/Mips16FrameLowering.cpp | |
| parent | 9c6d857c61924dc1a4c271c530bc8280bff0da92 (diff) | |
| download | llvm-25278aa26fa498e41830946b2138f01473269df2.tar.gz | |
Add the saving of S2. This is needed for some of the floating point
helper functions. This can be optimized out later when the remaining
parts of the helper function work is moved into the Mips16HardFloat pass.
For now it forces us to use the 32 bit save/restore instructions instead
of the 16 bit ones.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187712 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Mips/Mips16FrameLowering.cpp')
| -rw-r--r-- | lib/Target/Mips/Mips16FrameLowering.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/Target/Mips/Mips16FrameLowering.cpp b/lib/Target/Mips/Mips16FrameLowering.cpp index 9fde614f30b2..6655ff98e033 100644 --- a/lib/Target/Mips/Mips16FrameLowering.cpp +++ b/lib/Target/Mips/Mips16FrameLowering.cpp @@ -56,11 +56,14 @@ void Mips16FrameLowering::emitPrologue(MachineFunction &MF) const { MCSymbol *CSLabel = MMI.getContext().CreateTempSymbol(); BuildMI(MBB, MBBI, dl, TII.get(TargetOpcode::PROLOG_LABEL)).addSym(CSLabel); + unsigned S2 = MRI->getDwarfRegNum(Mips::S2, true); + MMI.addFrameInst(MCCFIInstruction::createOffset(CSLabel, S2, -8)); + unsigned S1 = MRI->getDwarfRegNum(Mips::S1, true); - MMI.addFrameInst(MCCFIInstruction::createOffset(CSLabel, S1, -8)); + MMI.addFrameInst(MCCFIInstruction::createOffset(CSLabel, S1, -12)); unsigned S0 = MRI->getDwarfRegNum(Mips::S0, true); - MMI.addFrameInst(MCCFIInstruction::createOffset(CSLabel, S0, -12)); + MMI.addFrameInst(MCCFIInstruction::createOffset(CSLabel, S0, -16)); unsigned RA = MRI->getDwarfRegNum(Mips::RA, true); MMI.addFrameInst(MCCFIInstruction::createOffset(CSLabel, RA, -4)); @@ -168,6 +171,7 @@ processFunctionBeforeCalleeSavedScan(MachineFunction &MF, MF.getRegInfo().setPhysRegUsed(Mips::RA); MF.getRegInfo().setPhysRegUsed(Mips::S0); MF.getRegInfo().setPhysRegUsed(Mips::S1); + MF.getRegInfo().setPhysRegUsed(Mips::S2); } const MipsFrameLowering * |