diff options
Diffstat (limited to 'include/llvm')
| -rw-r--r-- | include/llvm/Target/TargetFrameInfo.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/include/llvm/Target/TargetFrameInfo.h b/include/llvm/Target/TargetFrameInfo.h index 659955cdfba4..c6d2a9431642 100644 --- a/include/llvm/Target/TargetFrameInfo.h +++ b/include/llvm/Target/TargetFrameInfo.h @@ -19,7 +19,6 @@ struct MachineFrameInfo : public NonCopyableV { public: MachineFrameInfo(const TargetMachine& tgt) : target(tgt) {} - // // These methods provide constant parameters of the frame layout. // virtual int getStackFrameSizeAlignment () const = 0; @@ -27,8 +26,15 @@ public: virtual int getNumFixedOutgoingArgs () const = 0; virtual int getSizeOfEachArgOnStack () const = 0; virtual bool argsOnStackHaveFixedSize () const = 0; - - // + + // This method adjusts a stack offset to meet alignment rules of target. + // + virtual int adjustAlignment (int unalignedOffset, + bool growUp, + unsigned int align) const { + return unalignedOffset + (growUp? +1:-1)*(unalignedOffset % align); + } + // These methods compute offsets using the frame contents for a // particular method. The frame contents are obtained from the // MachineCodeInfoForMethod object for the given method. |