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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2013-04-06 21:38:57 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2013-04-06 21:38:57 +0000 |
| commit | 03d9f7fda6cde43f88accbe7700f47f5515dfb47 (patch) | |
| tree | 86f79c9e9c5bb493036ea570b47ad40fdc25ff58 /llvm/lib/Target/Sparc/SparcRegisterInfo.cpp | |
| parent | 63742f1379da62a749a569fc76c5ac93e73040ee (diff) | |
| download | bcm5719-llvm-03d9f7fda6cde43f88accbe7700f47f5515dfb47.tar.gz bcm5719-llvm-03d9f7fda6cde43f88accbe7700f47f5515dfb47.zip | |
SPARC v9 stack pointer bias.
64-bit SPARC v9 processes use biased stack and frame pointers, so the
current function's stack frame is located at %sp+BIAS .. %fp+BIAS where
BIAS = 2047.
This makes more local variables directly accessible via [%fp+simm13]
addressing.
llvm-svn: 178965
Diffstat (limited to 'llvm/lib/Target/Sparc/SparcRegisterInfo.cpp')
| -rw-r--r-- | llvm/lib/Target/Sparc/SparcRegisterInfo.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/Target/Sparc/SparcRegisterInfo.cpp b/llvm/lib/Target/Sparc/SparcRegisterInfo.cpp index db9b30eb433..3af4c614cd4 100644 --- a/llvm/lib/Target/Sparc/SparcRegisterInfo.cpp +++ b/llvm/lib/Target/Sparc/SparcRegisterInfo.cpp @@ -74,8 +74,9 @@ SparcRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II, // Addressable stack objects are accessed using neg. offsets from %fp MachineFunction &MF = *MI.getParent()->getParent(); - int Offset = MF.getFrameInfo()->getObjectOffset(FrameIndex) + - MI.getOperand(FIOperandNum + 1).getImm(); + int64_t Offset = MF.getFrameInfo()->getObjectOffset(FrameIndex) + + MI.getOperand(FIOperandNum + 1).getImm() + + Subtarget.getStackPointerBias(); // Replace frame index with a frame pointer reference. if (Offset >= -4096 && Offset <= 4095) { |
