Make Complex long long/double/long double work
in ppc64 mode.

llvm-svn: 48459
diff --git a/llvm/lib/Target/PowerPC/PPCCallingConv.td b/llvm/lib/Target/PowerPC/PPCCallingConv.td
index 6b6ae07..9f916f3 100644
--- a/llvm/lib/Target/PowerPC/PPCCallingConv.td
+++ b/llvm/lib/Target/PowerPC/PPCCallingConv.td
@@ -23,7 +23,7 @@
 // Return-value convention for PowerPC
 def RetCC_PPC : CallingConv<[
   CCIfType<[i32], CCAssignToReg<[R3, R4, R5, R6, R7, R8, R9, R10]>>,
-  CCIfType<[i64], CCAssignToReg<[X3, X4]>>,
+  CCIfType<[i64], CCAssignToReg<[X3, X4, X5, X6]>>,
   
   CCIfType<[f32], CCAssignToReg<[F1]>>,
   CCIfType<[f64], CCAssignToReg<[F1, F2]>>,