diff options
Diffstat (limited to 'include/llvm/Target/TargetFrameLowering.h')
| -rw-r--r-- | include/llvm/Target/TargetFrameLowering.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/llvm/Target/TargetFrameLowering.h b/include/llvm/Target/TargetFrameLowering.h index bfddd0601794..277bd98d371c 100644 --- a/include/llvm/Target/TargetFrameLowering.h +++ b/include/llvm/Target/TargetFrameLowering.h @@ -142,6 +142,10 @@ public: /// the assembly prologue to explicitly handle the stack. virtual void adjustForHiPEPrologue(MachineFunction &MF) const { } + /// Adjust the prologue to add an allocation at a fixed offset from the frame + /// pointer. + virtual void adjustForFrameAllocatePrologue(MachineFunction &MF) const { } + /// spillCalleeSavedRegisters - Issues instruction(s) to spill all callee /// saved registers and returns true if it isn't possible / profitable to do /// so by issuing a series of store instructions via @@ -199,6 +203,16 @@ public: virtual int getFrameIndexReference(const MachineFunction &MF, int FI, unsigned &FrameReg) const; + /// Same as above, except that the 'base register' will always be RSP, not + /// RBP on x86. This is used exclusively for lowering STATEPOINT nodes. + /// TODO: This should really be a parameterizable choice. + virtual int getFrameIndexReferenceFromSP(const MachineFunction &MF, int FI, + unsigned &FrameReg) const { + // default to calling normal version, we override this on x86 only + llvm_unreachable("unimplemented for non-x86"); + return 0; + } + /// processFunctionBeforeCalleeSavedScan - This method is called immediately /// before PrologEpilogInserter scans the physical registers used to determine /// what callee saved registers should be spilled. This method is optional. |