Convert a few tests to FileCheck for PR5307.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85171 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Transforms/ConstProp/float-to-ptr-cast.ll b/test/Transforms/ConstProp/float-to-ptr-cast.ll
index d8eb3e8..937f606 100644
--- a/test/Transforms/ConstProp/float-to-ptr-cast.ll
+++ b/test/Transforms/ConstProp/float-to-ptr-cast.ll
@@ -1,12 +1,15 @@
-; RUN: opt < %s -constprop -S | \
-; RUN:    grep -F {ret i32* null} | count 2
+; RUN: opt < %s -constprop -S | FileCheck %s
 
 define i32* @test1() {
         %X = inttoptr i64 0 to i32*             ; <i32*> [#uses=1]
         ret i32* %X
 }
 
+; CHECK:  ret i32* null
+
 define i32* @test2() {
         ret i32* null
 }
 
+; CHECK:  ret i32* null
+