1; RUN: opt < %s -indvars -S | FileCheck %s
2
3; Indvars should insert a 64-bit induction variable to eliminate the
4; sext for the addressing, however it shouldn't eliminate the sext
5; on the other phi, since that value undergoes signed wrapping.
6
7; Provide legal integer types.
8target datalayout = "n8:16:32:64"
9
10
11define void @foo(i32* nocapture %d, i32 %n) nounwind {
12entry:
13	%0 = icmp sgt i32 %n, 0		; <i1> [#uses=1]
14	br i1 %0, label %bb.nph, label %return
15
16bb.nph:		; preds = %entry
17	br label %bb
18
19; CHECK: bb:
20; CHECK: phi i64
21; CHECK: sext i8
22; CHECK-NOT: sext
23bb:		; preds = %bb1, %bb.nph
24	%i.02 = phi i32 [ %5, %bb1 ], [ 0, %bb.nph ]		; <i32> [#uses=2]
25	%p.01 = phi i8 [ %4, %bb1 ], [ -1, %bb.nph ]		; <i8> [#uses=2]
26	%1 = sext i8 %p.01 to i32		; <i32> [#uses=1]
27	%2 = sext i32 %i.02 to i64		; <i64> [#uses=1]
28	%3 = getelementptr i32, i32* %d, i64 %2		; <i32*> [#uses=1]
29	store i32 %1, i32* %3, align 4
30	%4 = add i8 %p.01, 1		; <i8> [#uses=1]
31	%5 = add i32 %i.02, 1		; <i32> [#uses=2]
32	br label %bb1
33
34bb1:		; preds = %bb
35	%6 = icmp slt i32 %5, %n		; <i1> [#uses=1]
36	br i1 %6, label %bb, label %bb1.return_crit_edge
37
38bb1.return_crit_edge:		; preds = %bb1
39	br label %return
40
41return:		; preds = %bb1.return_crit_edge, %entry
42	ret void
43}
44