Fix PowerPC tests to be register allocator independent.

llvm-svn: 128827
diff --git a/llvm/test/CodeGen/PowerPC/2010-05-03-retaddr1.ll b/llvm/test/CodeGen/PowerPC/2010-05-03-retaddr1.ll
index b10920a..2a35d26 100644
--- a/llvm/test/CodeGen/PowerPC/2010-05-03-retaddr1.ll
+++ b/llvm/test/CodeGen/PowerPC/2010-05-03-retaddr1.ll
@@ -1,4 +1,4 @@
-; RUN: llc < %s -march=ppc32 -mtriple=powerpc-apple-darwin -mcpu=g5 | FileCheck %s
+; RUN: llc < %s -march=ppc32 -mtriple=powerpc-apple-darwin -mcpu=g5 -regalloc=linearscan | FileCheck %s
 
 declare i8* @llvm.frameaddress(i32) nounwind readnone