From aa500f3f4307cf24f4775fa2c28870ff0a45bcaf Mon Sep 17 00:00:00 2001 From: "Vikram S. Adve" Date: Mon, 16 Sep 2002 15:57:43 +0000 Subject: [PATCH] Add method adjustAlignment so that stack slot alignments can be computed in a target-dependent manner (because of the dang OFFSET in Sparc v9). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3745 91177308-0d34-0410-b5e6-96231b3b80d8 --- include/llvm/Target/TargetFrameInfo.h | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/include/llvm/Target/TargetFrameInfo.h b/include/llvm/Target/TargetFrameInfo.h index 659955cdfba..c6d2a943164 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.