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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 | 2b9355f2d9888d6a011353610b9ca24818de59a2 (patch) | |
| tree | af847b3485ed4b093960a3c4fe8101dd46a2875e /lib/Target/Sparc/SparcRegisterInfo.cpp | |
| parent | 839b9096538f790a2bb060547df24703807cb83b (diff) | |
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178965 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Sparc/SparcRegisterInfo.cpp')
| -rw-r--r-- | lib/Target/Sparc/SparcRegisterInfo.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/Target/Sparc/SparcRegisterInfo.cpp b/lib/Target/Sparc/SparcRegisterInfo.cpp index db9b30eb43..3af4c614cd 100644 --- a/lib/Target/Sparc/SparcRegisterInfo.cpp +++ b/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) { |