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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167043 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsISelLowering.cpp b/lib/Target/Mips/MipsISelLowering.cpp
index 77f1bac..862790b 100644
--- a/lib/Target/Mips/MipsISelLowering.cpp
+++ b/lib/Target/Mips/MipsISelLowering.cpp
@@ -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();