New testcase for PR532

llvm-svn: 20492

llvm/test/Regression/Transforms/LoopUnroll/2005-03-06-BadLoopInfoUpdate.ll

@@ -0,0 +1,29 @@
+; RUN: llvm-as < %s | opt -loop-unroll -loopsimplify -disable-output
+
+implementation   ; Functions:
+
+void %print_board() {
+entry:
+	br label %no_exit.1
+
+no_exit.1:		; preds = %cond_false.2, %entry
+	br label %no_exit.2
+
+no_exit.2:		; preds = %no_exit.2, %no_exit.1
+	%indvar1 = phi uint [ 0, %no_exit.1 ], [ %indvar.next2, %no_exit.2 ]		; <uint> [#uses=1]
+	%indvar.next2 = add uint %indvar1, 1		; <uint> [#uses=2]
+	%exitcond3 = setne uint %indvar.next2, 7		; <bool> [#uses=1]
+	br bool %exitcond3, label %no_exit.2, label %loopexit.2
+
+loopexit.2:		; preds = %no_exit.2
+	br bool false, label %cond_true.2, label %cond_false.2
+
+cond_true.2:		; preds = %loopexit.2
+	ret void
+
+cond_false.2:		; preds = %loopexit.2
+	br bool false, label %no_exit.1, label %loopexit.1
+
+loopexit.1:		; preds = %cond_false.2
+	ret void
+}