--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/Transforms/IndVarSimplify/iv-zext.ll	Thu Dec 12 13:56:28 2013 +0900
@@ -0,0 +1,33 @@
+; RUN: opt < %s -indvars -S | FileCheck %s
+; CHECK-NOT: and
+; CHECK-NOT: zext
+
+target datalayout = "p:64:64:64-n32:64"
+
+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 = fmul 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 = fmul double %t4, 2.3
+	store double %t5, double* %t3
+	%t6 = getelementptr double* %d, i64 %indvar
+	%t7 = load double* %t6
+	%t8 = fmul 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
+}