From 03d9f7fda6cde43f88accbe7700f47f5515dfb47 Mon Sep 17 00:00:00 2001 From: Jakob Stoklund Olesen Date: Sat, 6 Apr 2013 21:38:57 +0000 Subject: 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 --- llvm/lib/Target/Sparc/SparcRegisterInfo.cpp | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'llvm/lib/Target/Sparc/SparcRegisterInfo.cpp') 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) { -- cgit v1.2.3