--- /dev/null
+; RUN: llvm-as < %s | opt -loop-index-split -disable-output
+; Handle Exit block phis that do not have any use inside the loop.
+
+ %struct.ATOM = type { double, double, double, double, double, double, i32, double, double, double, double, i8*, i8, [9 x i8], double, double, double, double, double, double, double, double, double, double, double, double, double, double, double, double, double, double, double, double, double, double, double, double, double, [200 x i8*], [32 x i8*], [32 x i8], i32 }
+ %struct.FILE = type { i8*, i32, i32, i16, i16, %struct.__sbuf, i32, i8*, i32 (i8*)*, i32 (i8*, i8*, i32)*, i64 (i8*, i64, i32)*, i32 (i8*, i8*, i32)*, %struct.__sbuf, %struct.__sFILEX*, i32, [3 x i8], [1 x i8], %struct.__sbuf, i32, i64 }
+ %struct.__sFILEX = type opaque
+ %struct.__sbuf = type { i8*, i32 }
+
+define i32 @math([80 x i8]* %tokens, double* %fvalue, i32* %ivalue, %struct.FILE* %ip, %struct.FILE* %op, i32 %echo) nounwind {
+entry:
+ br i1 false, label %bb.i, label %bb35.i
+bb.i: ; preds = %entry
+ br i1 false, label %bb6.i, label %bb9.i
+bb9.i: ; preds = %bb.i
+ ret i32 0
+bb35.i: ; preds = %entry
+ ret i32 0
+bb6.i: ; preds = %bb.i
+ br i1 false, label %a_l2_f.exit, label %bb16.i
+bb16.i: ; preds = %bb6.i
+ ret i32 0
+a_l2_f.exit: ; preds = %bb6.i
+ br i1 false, label %bb7.i97, label %bb6.i71
+bb6.i71: ; preds = %a_l2_f.exit
+ ret i32 0
+bb7.i97: ; preds = %a_l2_f.exit
+ br i1 false, label %bb, label %bb18.i102
+bb18.i102: ; preds = %bb7.i97
+ ret i32 0
+bb: ; preds = %bb7.i97
+ br i1 false, label %bb38, label %AFOUND
+bb38: ; preds = %bb
+ br i1 false, label %bb111, label %bb7.i120
+AFOUND: ; preds = %bb
+ ret i32 0
+bb7.i120: ; preds = %bb38
+ ret i32 0
+bb111: ; preds = %bb38
+ switch i32 0, label %bb574 [
+ i32 1, label %bb158
+ i32 0, label %bb166
+ ]
+bb158: ; preds = %bb111
+ ret i32 0
+bb166: ; preds = %bb111
+ ret i32 0
+bb574: ; preds = %bb111
+ br i1 false, label %bb11.i249, label %bb600
+bb11.i249: ; preds = %bb574
+ br i1 false, label %bb11.i265, label %bb596
+bb11.i265: ; preds = %bb590, %bb11.i249
+ %i.1.reg2mem.0 = phi i32 [ %tmp589.reg2mem.0, %bb590 ], [ 0, %bb11.i249 ] ; <i32> [#uses=2]
+ %tmp13.i264 = icmp slt i32 %i.1.reg2mem.0, 1 ; <i1> [#uses=1]
+ br i1 %tmp13.i264, label %bb16.i267, label %bb30.i279
+bb16.i267: ; preds = %bb11.i265
+ br label %bb590
+bb30.i279: ; preds = %bb11.i265
+ br label %bb590
+bb590: ; preds = %bb30.i279, %bb16.i267
+ %tmp5876282.reg2mem.0 = phi %struct.ATOM* [ null, %bb30.i279 ], [ null, %bb16.i267 ] ; <%struct.ATOM*> [#uses=1]
+ %tmp589.reg2mem.0 = add i32 %i.1.reg2mem.0, 1 ; <i32> [#uses=2]
+ %tmp593 = icmp slt i32 %tmp589.reg2mem.0, 0 ; <i1> [#uses=1]
+ br i1 %tmp593, label %bb11.i265, label %bb596
+bb596: ; preds = %bb590, %bb11.i249
+ %ap.0.reg2mem.0 = phi %struct.ATOM* [ null, %bb11.i249 ], [ %tmp5876282.reg2mem.0, %bb590 ] ; <%struct.ATOM*> [#uses=0]
+ ret i32 0
+bb600: ; preds = %bb574
+ ret i32 0
+}