1 files changed, 33 insertions, 0 deletions
diff --git a/test/Transforms/IndVarSimplify/iv-zext.ll b/test/Transforms/IndVarSimplify/iv-zext.ll
new file mode 100644
index 000000000000..76d48de0d3c5
--- /dev/null
+++ b/test/Transforms/IndVarSimplify/iv-zext.ll
@@ -0,0 +1,33 @@
+; RUN: llvm-as < %s | opt -indvars | llvm-dis > %t
+; RUN: not grep and %t
+; RUN: not grep zext %t
+
+target datalayout = "-p:64:64:64"
+
+define void @foo(double* %d, i64 %n) nounwind {
+entry:
+	br label %loop
+
+loop:
+	%indvar = phi i64 [ 0, %entry ], [ %indvar.next, %loop ]
+	%indvar.i8 = and i64 %indvar, 255
+	%t0 = getelementptr double* %d, i64 %indvar.i8
+	%t1 = load double* %t0
+	%t2 = mul double %t1, 0.1
+	store double %t2, double* %t0
+	%indvar.i24 = and i64 %indvar, 16777215
+	%t3 = getelementptr double* %d, i64 %indvar.i24
+	%t4 = load double* %t3
+	%t5 = mul double %t4, 2.3
+	store double %t5, double* %t3
+	%t6 = getelementptr double* %d, i64 %indvar
+	%t7 = load double* %t6
+	%t8 = mul double %t7, 4.5
+	store double %t8, double* %t6
+	%indvar.next = add i64 %indvar, 1
+	%exitcond = icmp eq i64 %indvar.next, 10
+	br i1 %exitcond, label %return, label %loop
+
+return:
+	ret void
+}