1 files changed, 35 insertions, 0 deletions
diff --git a/test/Transforms/IndVarSimplify/2009-04-22-IndvarCrash.ll b/test/Transforms/IndVarSimplify/2009-04-22-IndvarCrash.ll
new file mode 100644
index 0000000..24074bf
--- /dev/null
+++ b/test/Transforms/IndVarSimplify/2009-04-22-IndvarCrash.ll
@@ -0,0 +1,35 @@
+; RUN: opt < %s -indvars
+; rdar://6817574
+
+define i32 @t1() nounwind ssp {
+entry:
+	br label %bb32
+
+bb32:		; preds = %bb32, %entry
+	%mbPartIdx.0.reg2mem.0 = phi i8 [ %2, %bb32 ], [ 0, %entry ]		; <i8> [#uses=3]
+	%0 = and i8 %mbPartIdx.0.reg2mem.0, 1		; <i8> [#uses=0]
+	%1 = zext i8 %mbPartIdx.0.reg2mem.0 to i64		; <i64> [#uses=0]
+	%2 = add i8 %mbPartIdx.0.reg2mem.0, 1		; <i8> [#uses=2]
+	%3 = icmp ugt i8 %2, 3		; <i1> [#uses=1]
+	br i1 %3, label %bb41, label %bb32
+
+bb41:		; preds = %bb32
+	ret i32 0
+}
+
+define i32 @t2() nounwind ssp {
+entry:
+	br label %bb116
+
+bb116:		; preds = %bb116, %entry
+	%mbPartIdx.1.reg2mem.0 = phi i8 [ %3, %bb116 ], [ 0, %entry ]		; <i8> [#uses=3]
+	%0 = and i8 %mbPartIdx.1.reg2mem.0, 1		; <i8> [#uses=1]
+	%1 = zext i8 %mbPartIdx.1.reg2mem.0 to i64		; <i64> [#uses=0]
+	%2 = zext i8 %0 to i32		; <i32> [#uses=0]
+	%3 = add i8 %mbPartIdx.1.reg2mem.0, 1		; <i8> [#uses=2]
+	%4 = icmp ugt i8 %3, 3		; <i1> [#uses=1]
+	br i1 %4, label %bb131, label %bb116
+
+bb131:		; preds = %bb116
+	unreachable
+}