[llvm-commits] [llvm] r167043 - in /llvm/trunk/lib/Target/Mips: MipsISelLowering.cpp MipsMachineFunction.h

[Akira Hatanaka]

Author: ahatanak
Date: Tue Oct 30 14:37:25 2012
New Revision: 167043

URL: http://llvm.org/viewvc/llvm-project?rev=167043&view=rev
Log:
Add code for saving formal argument information to MipsFunctionInfo. This
information will be used by IsEligibleForTailCallOptimization to determine
whether a call can be tail-call optimized.


Modified:
    llvm/trunk/lib/Target/Mips/MipsISelLowering.cpp
    llvm/trunk/lib/Target/Mips/MipsMachineFunction.h

Modified: llvm/trunk/lib/Target/Mips/MipsISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Mips/MipsISelLowering.cpp?rev=167043&r1=167042&r2=167043&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Mips/MipsISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/Mips/MipsISelLowering.cpp Tue Oct 30 14:37:25 2012
@@ -3021,6 +3021,8 @@
   MipsCC MipsCCInfo(CallConv, isVarArg, IsO32, CCInfo);
 
   MipsCCInfo.analyzeFormalArguments(Ins);
+  MipsFI->setFormalArgInfo(CCInfo.getNextStackOffset(),
+                           MipsCCInfo.hasByValArg());
 
   Function::const_arg_iterator FuncArg =
     DAG.getMachineFunction().getFunction()->arg_begin();

Modified: llvm/trunk/lib/Target/Mips/MipsMachineFunction.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Mips/MipsMachineFunction.h?rev=167043&r1=167042&r2=167043&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Mips/MipsMachineFunction.h (original)
+++ llvm/trunk/lib/Target/Mips/MipsMachineFunction.h Tue Oct 30 14:37:25 2012
@@ -47,6 +47,10 @@
   /// VarArgsFrameIndex - FrameIndex for start of varargs area.
   int VarArgsFrameIndex;
 
+  // Formal argument information obtained during call to LowerFormalArguments.
+  unsigned NextStackOffset;
+  bool HasByvalArg;
+
   bool EmitNOAT;
 
 public:
@@ -67,6 +71,13 @@
   int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
   void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
 
+  unsigned nextStackOffset() const { return NextStackOffset; }
+  bool hasByvalArg() const { return HasByvalArg; }
+  void setFormalArgInfo(unsigned Offset, bool HasByval) {
+    NextStackOffset = Offset;
+    HasByvalArg = HasByval;
+  }
+
   bool getEmitNOAT() const { return EmitNOAT; }
   void setEmitNOAT() { EmitNOAT = true; }
 };