Fix a few places where 32bit instructions/registerset were used on PPC64.

llvm-svn: 133260
diff --git a/llvm/test/CodeGen/PowerPC/ppc64-crash.ll b/llvm/test/CodeGen/PowerPC/ppc64-crash.ll
new file mode 100644
index 0000000..073c322
--- /dev/null
+++ b/llvm/test/CodeGen/PowerPC/ppc64-crash.ll
@@ -0,0 +1,14 @@
+; RUN: llc %s -o -
+
+; ModuleID = 'undo.c'
+target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32:64"
+target triple = "powerpc64-unknown-freebsd"
+
+%struct.__sFILE = type {}
+%struct.pos_T = type { i64 }
+
+; check that we're not copying stuff between R and X registers
+define internal void @serialize_pos(%struct.pos_T* byval %pos, %struct.__sFILE* %fp) nounwind {
+entry:
+  ret void
+}