diff options
Diffstat (limited to 'contrib/llvm/lib/Target/X86/X86FrameLowering.h')
| -rw-r--r-- | contrib/llvm/lib/Target/X86/X86FrameLowering.h | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/contrib/llvm/lib/Target/X86/X86FrameLowering.h b/contrib/llvm/lib/Target/X86/X86FrameLowering.h index 5ad3d4dc2e97..ee0ee227cad8 100644 --- a/contrib/llvm/lib/Target/X86/X86FrameLowering.h +++ b/contrib/llvm/lib/Target/X86/X86FrameLowering.h @@ -11,8 +11,8 @@ // //===----------------------------------------------------------------------===// -#ifndef X86_FRAMELOWERING_H -#define X86_FRAMELOWERING_H +#ifndef LLVM_LIB_TARGET_X86_X86FRAMELOWERING_H +#define LLVM_LIB_TARGET_X86_X86FRAMELOWERING_H #include "llvm/Target/TargetFrameLowering.h" @@ -20,12 +20,17 @@ namespace llvm { class MCSymbol; class X86TargetMachine; +class X86Subtarget; class X86FrameLowering : public TargetFrameLowering { public: explicit X86FrameLowering(StackDirection D, unsigned StackAl, int LAO) : TargetFrameLowering(StackGrowsDown, StackAl, LAO) {} + static void getStackProbeFunction(const X86Subtarget &STI, + unsigned &CallOp, + const char *&Symbol); + void emitCalleeSavedFrameMoves(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, DebugLoc DL) const; @@ -64,9 +69,23 @@ public: int getFrameIndexReference(const MachineFunction &MF, int FI, unsigned &FrameReg) const override; + int getFrameIndexOffsetFromSP(const MachineFunction &MF, int FI) const; + int getFrameIndexReferenceFromSP(const MachineFunction &MF, int FI, + unsigned &FrameReg) const override; + void eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB, MachineBasicBlock::iterator MI) const override; + +private: + /// convertArgMovsToPushes - This method tries to convert a call sequence + /// that uses sub and mov instructions to put the argument onto the stack + /// into a series of pushes. + /// Returns true if the transformation succeeded, false if not. + bool convertArgMovsToPushes(MachineFunction &MF, + MachineBasicBlock &MBB, + MachineBasicBlock::iterator I, + uint64_t Amount) const; }; } // End llvm namespace |