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Diffstat (limited to 'include/llvm/Target/TargetRegisterInfo.h')
| -rw-r--r-- | include/llvm/Target/TargetRegisterInfo.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/llvm/Target/TargetRegisterInfo.h b/include/llvm/Target/TargetRegisterInfo.h index 65b60f7..212cc93 100644 --- a/include/llvm/Target/TargetRegisterInfo.h +++ b/include/llvm/Target/TargetRegisterInfo.h @@ -587,6 +587,17 @@ public: return !hasFP(MF); } + /// canSimplifyCallFramePseudos - When possible, it's best to simplify the + /// call frame pseudo ops before doing frame index elimination. This is + /// possible only when frame index references between the pseudos won't + /// need adjusted for the call frame adjustments. Normally, that's true + /// if the function has a reserved call frame or a frame pointer. Some + /// targets (Thumb2, for example) may have more complicated criteria, + /// however, and can override this behavior. + virtual bool canSimplifyCallFramePseudos(MachineFunction &MF) const { + return hasReservedCallFrame(MF) || hasFP(MF); + } + /// hasReservedSpillSlot - Return true if target has reserved a spill slot in /// the stack frame of the given function for the specified register. e.g. On /// x86, if the frame register is required, the first fixed stack object is |