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| author | dim <dim@FreeBSD.org> | 2015-12-30 13:13:10 +0000 |
|---|---|---|
| committer | dim <dim@FreeBSD.org> | 2015-12-30 13:13:10 +0000 |
| commit | 9b5bf5c4f53d65d6a48722d7410ed7cb15f5ba3a (patch) | |
| tree | b466a4817f79516eb1df8eae92bccf62ecc84003 /contrib/llvm/lib/CodeGen/TargetFrameLoweringImpl.cpp | |
| parent | f09a28d1de99fda4f5517fb12670fc36552f4927 (diff) | |
| parent | e194cd6d03d91631334d9d5e55b506036f423cc8 (diff) | |
| download | FreeBSD-src-9b5bf5c4f53d65d6a48722d7410ed7cb15f5ba3a.zip FreeBSD-src-9b5bf5c4f53d65d6a48722d7410ed7cb15f5ba3a.tar.gz | |
Update llvm to trunk r256633.
Diffstat (limited to 'contrib/llvm/lib/CodeGen/TargetFrameLoweringImpl.cpp')
| -rw-r--r-- | contrib/llvm/lib/CodeGen/TargetFrameLoweringImpl.cpp | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/contrib/llvm/lib/CodeGen/TargetFrameLoweringImpl.cpp b/contrib/llvm/lib/CodeGen/TargetFrameLoweringImpl.cpp index f3cccd8..679ade1 100644 --- a/contrib/llvm/lib/CodeGen/TargetFrameLoweringImpl.cpp +++ b/contrib/llvm/lib/CodeGen/TargetFrameLoweringImpl.cpp @@ -17,6 +17,7 @@ #include "llvm/CodeGen/MachineFunction.h" #include "llvm/CodeGen/MachineModuleInfo.h" #include "llvm/CodeGen/MachineRegisterInfo.h" +#include "llvm/IR/CallingConv.h" #include "llvm/IR/Function.h" #include "llvm/Target/TargetRegisterInfo.h" #include "llvm/Target/TargetSubtargetInfo.h" @@ -32,25 +33,22 @@ bool TargetFrameLowering::noFramePointerElim(const MachineFunction &MF) const { return Attr.getValueAsString() == "true"; } -/// getFrameIndexOffset - Returns the displacement from the frame register to -/// the stack frame of the specified index. This is the default implementation -/// which is overridden for some targets. -int TargetFrameLowering::getFrameIndexOffset(const MachineFunction &MF, - int FI) const { - const MachineFrameInfo *MFI = MF.getFrameInfo(); - return MFI->getObjectOffset(FI) + MFI->getStackSize() - - getOffsetOfLocalArea() + MFI->getOffsetAdjustment(); -} - +/// Returns the displacement from the frame register to the stack +/// frame of the specified index, along with the frame register used +/// (in output arg FrameReg). This is the default implementation which +/// is overridden for some targets. int TargetFrameLowering::getFrameIndexReference(const MachineFunction &MF, int FI, unsigned &FrameReg) const { + const MachineFrameInfo *MFI = MF.getFrameInfo(); const TargetRegisterInfo *RI = MF.getSubtarget().getRegisterInfo(); // By default, assume all frame indices are referenced via whatever // getFrameRegister() says. The target can override this if it's doing // something different. FrameReg = RI->getFrameRegister(MF); - return getFrameIndexOffset(MF, FI); + + return MFI->getObjectOffset(FI) + MFI->getStackSize() - + getOffsetOfLocalArea() + MFI->getOffsetAdjustment(); } bool TargetFrameLowering::needsFrameIndexResolution( @@ -84,3 +82,13 @@ void TargetFrameLowering::determineCalleeSaves(MachineFunction &MF, SavedRegs.set(Reg); } } + +unsigned TargetFrameLowering::getStackAlignmentSkew( + const MachineFunction &MF) const { + // When HHVM function is called, the stack is skewed as the return address + // is removed from the stack before we enter the function. + if (LLVM_UNLIKELY(MF.getFunction()->getCallingConv() == CallingConv::HHVM)) + return MF.getTarget().getPointerSize(); + + return 0; +} |
