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1cea749780
PEI tries to keep track of how much starting or ending a call sequence adjusts the stack pointer by, so that it can resolve frame-index references. Currently, it takes a very simplistic view of how SP adjustments are done - both FrameStartOpcode and FrameDestroyOpcode adjust it exactly by the amount written in its first argument. This view is in fact incorrect for some targets (e.g. due to stack re-alignment, or because it may want to adjust the stack pointer in multiple steps). However, that doesn't cause breakage, because most targets (the only in-tree exception appears to be 32-bit ARM) rely on being able to simplify the call frame pseudo-instructions earlier, so this code is never hit. Moving the computation into TargetInstrInfo allows targets to override the way the adjustment is computed if they need to have a non-zero SPAdj. Differential Revision: http://reviews.llvm.org/D6863 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225437 91177308-0d34-0410-b5e6-96231b3b80d8 |
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| .. | ||
| CostTable.h | ||
| Target.td | ||
| TargetCallingConv.h | ||
| TargetCallingConv.td | ||
| TargetFrameLowering.h | ||
| TargetInstrInfo.h | ||
| TargetIntrinsicInfo.h | ||
| TargetItinerary.td | ||
| TargetLibraryInfo.h | ||
| TargetLowering.h | ||
| TargetLoweringObjectFile.h | ||
| TargetMachine.h | ||
| TargetOpcodes.h | ||
| TargetOptions.h | ||
| TargetRegisterInfo.h | ||
| TargetSchedule.td | ||
| TargetSelectionDAG.td | ||
| TargetSelectionDAGInfo.h | ||
| TargetSubtargetInfo.h | ||