commit b8bd232a3da38b11bb0b848ad2bd18d57319b9dc
author Stephen Lin <stephenwlin@gmail.com> Sat Apr 20 05:14:40 2013 +0000
committer Stephen Lin <stephenwlin@gmail.com> Sat Apr 20 05:14:40 2013 +0000
tree 89851559c908e128175716113c7d2205bc44d09b
parent ffc445492cb7b3a78b042e32f956a4438aeda2c9

Add CodeGen support for functions that always return arguments via a new parameter attribute 'returned', which is taken advantage of in target-independent tail call opportunity detection and in ARM call lowering (when placed on an integral first parameter).

llvm-svn: 179925

llvm/lib/Target/ARM/ARMISelLowering.h

diff --git a/llvm/lib/Target/ARM/ARMISelLowering.h b/llvm/lib/Target/ARM/ARMISelLowering.h
index 9ee17f0..015416c 100644
--- a/llvm/lib/Target/ARM/ARMISelLowering.h
+++ b/llvm/lib/Target/ARM/ARMISelLowering.h
@@ -464,7 +464,8 @@
                             CallingConv::ID CallConv, bool isVarArg,
                             const SmallVectorImpl<ISD::InputArg> &Ins,
                             DebugLoc dl, SelectionDAG &DAG,
-                            SmallVectorImpl<SDValue> &InVals) const;
+                            SmallVectorImpl<SDValue> &InVals,
+                            bool isThisReturn, SDValue ThisVal) const;
 
     virtual SDValue
       LowerFormalArguments(SDValue Chain,