[mips] Do not use function CC_MipsN_VarArg unless the function being analyzed
is a vararg function.
The original code was examining flag OutputArg::IsFixed to determine whether
CC_MipsN_VarArg or CC_MipsN should be called. This is not correct, since this
flag is often set to false when the function being analyzed is a non-variadic
function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174442 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsISelLowering.cpp b/lib/Target/Mips/MipsISelLowering.cpp
index ff0064e..2ff369c 100644
--- a/lib/Target/Mips/MipsISelLowering.cpp
+++ b/lib/Target/Mips/MipsISelLowering.cpp
@@ -3793,7 +3793,7 @@
IntArgRegs = Mips64IntRegs;
ShadowRegs = Mips64DPRegs;
FixedFn = CC_MipsN;
- VarFn = CC_MipsN_VarArg;
+ VarFn = IsVarArg ? CC_MipsN_VarArg : CC_MipsN;
}
if (CallConv == CallingConv::Fast) {