New testcase for scalar promotion

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5611 91177308-0d34-0410-b5e6-96231b3b80d8

test/Transforms/LICM/scalar_promote.ll

@@ -19,3 +19,18 @@ Loop:
 Out:
 	ret void
 }
+
+void %testhard(int %i) {
+	br label %Loop
+Loop:
+	%X1 = getelementptr int* %X, long 0
+	%A = load int* %X1 ; Aliases X, needs to be rewritten
+	%V = add int %A, 1
+	%X2 = getelementptr int* %X, long 0
+	store int %V, int* %X2
+	br bool false, label %Loop, label %Exit
+
+Exit:
+	ret void
+
+}