Vector function results go into V2 according to GCC. The darwin ABI doc

doesn't say where they go :-/

llvm-svn: 27579

1 files changed, 10 insertions, 1 deletions

diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
index f7643b84073..99de51bf77d 100644
--- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -877,7 +877,16 @@ SDOperand PPCTargetLowering::LowerOperation(SDOperand Op, SelectionDAG &DAG) {
       return SDOperand(); // ret void is legal
     case 2: {
       MVT::ValueType ArgVT = Op.getOperand(1).getValueType();
-      unsigned ArgReg = MVT::isInteger(ArgVT) ? PPC::R3 : PPC::F1;
+      unsigned ArgReg;
+      if (MVT::isVector(ArgVT))
+        ArgReg = PPC::V2;
+      else if (MVT::isInteger(ArgVT))
+        ArgReg = PPC::R3;
+      else {
+        assert(MVT::isFloatingPoint(ArgVT));
+        ArgReg = PPC::F1;
+      }
+      
       Copy = DAG.getCopyToReg(Op.getOperand(0), ArgReg, Op.getOperand(1),
                               SDOperand());