Update a test to FileCheck.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89610 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/PR2001-bitfield-reload.c b/test/CodeGen/PR2001-bitfield-reload.c
index 1fef3c5..4dec65f 100644
--- a/test/CodeGen/PR2001-bitfield-reload.c
+++ b/test/CodeGen/PR2001-bitfield-reload.c
@@ -1,6 +1,4 @@
-// RUN: clang-cc -triple i386-unknown-unknown --emit-llvm-bc -o - %s | opt --std-compile-opts | llvm-dis > %t
-// RUN: grep "ret i32" %t | count 1
-// RUN: grep "ret i32 1" %t | count 1
+// RUN: clang-cc -triple i386-unknown-unknown -O3 -emit-llvm -o - %s | FileCheck %s
 // PR2001
 
 /* Test that the result of the assignment properly uses the value *in
@@ -13,5 +11,6 @@
 }
 
 int bar() {
+  // CHECK: ret i32 1
   return foo(-5) == -1;
 }