commit d7970f9e4ba3bbd23fe8fc1941f1281ff5bc4d61
author Akira Hatanaka <ahatanaka@mips.com> Tue Jan 24 23:18:43 2012 +0000
committer Akira Hatanaka <ahatanaka@mips.com> Tue Jan 24 23:18:43 2012 +0000
tree 3496a608da84e8a16babc3af522a2c4c19f60083
parent 946b7b5bc80a5c330e41cca650a82bc21a638a02

Sign-extend 32-bit integer arguments when they are passed in 64-bit registers,
which is what N32/64 does.

llvm-svn: 148875

llvm/lib/Target/Mips/MipsISelLowering.cpp

diff --git a/llvm/lib/Target/Mips/MipsISelLowering.cpp b/llvm/lib/Target/Mips/MipsISelLowering.cpp
index 96b297c..2f366b3 100644
--- a/llvm/lib/Target/Mips/MipsISelLowering.cpp
+++ b/llvm/lib/Target/Mips/MipsISelLowering.cpp
@@ -2299,7 +2299,10 @@
       Arg = DAG.getNode(ISD::ZERO_EXTEND, dl, LocVT, Arg);
       break;
     case CCValAssign::AExt:
-      Arg = DAG.getNode(ISD::ANY_EXTEND, dl, LocVT, Arg);
+      if (ValVT == MVT::i32)
+        Arg = DAG.getNode(ISD::SIGN_EXTEND, dl, LocVT, Arg);
+      else
+        Arg = DAG.getNode(ISD::ANY_EXTEND, dl, LocVT, Arg);
       break;
     }