diff options
| -rw-r--r-- | include/llvm/Target/TargetLowering.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/llvm/Target/TargetLowering.h b/include/llvm/Target/TargetLowering.h index ee1ac36..eb7814e 100644 --- a/include/llvm/Target/TargetLowering.h +++ b/include/llvm/Target/TargetLowering.h @@ -172,6 +172,37 @@ public: virtual std::pair<SDOperand, SDOperand> LowerCallTo(SDOperand Chain, const Type *RetTy, SDOperand Callee, ArgListTy &Args, SelectionDAG &DAG) = 0; + + + /// LowerVAStart - This lowers the llvm.va_start intrinsic. If not + /// implemented, this method prints a message and aborts. + virtual std::pair<SDOperand, SDOperand> + LowerVAStart(SDOperand Chain, SelectionDAG &DAG); + + /// LowerVAEnd - This lowers llvm.va_end and returns the resultant chain. If + /// not implemented, this defaults to a noop. + virtual SDOperand LowerVAEnd(SDOperand Chain, SDOperand L, SelectionDAG &DAG); + + /// LowerVACopy - This lowers llvm.va_copy and returns the resultant + /// value/chain pair. If not implemented, this defaults to returning the + /// input operand. + virtual std::pair<SDOperand,SDOperand> + LowerVACopy(SDOperand Chain, SDOperand L, SelectionDAG &DAG); + + /// LowerVAArgNext - This lowers the vaarg and vanext instructions (depending + /// on whether the first argument is true). If not implemented, this prints a + /// message and aborts. + virtual std::pair<SDOperand,SDOperand> + LowerVAArgNext(bool isVANext, SDOperand Chain, SDOperand VAList, + const Type *ArgTy, SelectionDAG &DAG); + + /// LowerFrameReturnAddress - This hook lowers a call to llvm.returnaddress or + /// llvm.frameaddress (depending on the value of the first argument). The + /// return values are the result pointer and the resultant token chain. If + /// not implemented, both of these intrinsics will return null. + virtual std::pair<SDOperand, SDOperand> + LowerFrameReturnAddress(bool isFrameAddr, SDOperand Chain, unsigned Depth, + SelectionDAG &DAG); }; } // end llvm namespace |