add some nounwind's.

llvm-svn: 119086
diff --git a/llvm/test/CodeGen/PowerPC/unsafe-math.ll b/llvm/test/CodeGen/PowerPC/unsafe-math.ll
index ef97912..b0bdcc2 100644
--- a/llvm/test/CodeGen/PowerPC/unsafe-math.ll
+++ b/llvm/test/CodeGen/PowerPC/unsafe-math.ll
@@ -2,7 +2,7 @@
 ; RUN: llc < %s -march=ppc32 -enable-unsafe-fp-math | \
 ; RUN:   grep fmul | count 1
 
-define double @foo(double %X) {
+define double @foo(double %X) nounwind {
         %tmp1 = fmul double %X, 1.23
         %tmp2 = fmul double %tmp1, 4.124
         ret double %tmp2