1; RUN: opt < %s -indvars -disable-output
2; PR4009
3; PR4038
4
5target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"
6target triple = "i386-pc-linux-gnu"
7
8define void @safe_bcopy(i8* %to) nounwind {
9entry:
10	%cmp11 = icmp ult i8* %to, null		; <i1> [#uses=1]
11	br i1 %cmp11, label %loop, label %return
12
13return:		; preds = %entry
14	ret void
15
16loop:		; preds = %loop, %if.else
17	%pn = phi i8* [ %ge, %loop ], [ null, %entry ]		; <i8*> [#uses=1]
18	%cp = ptrtoint i8* %to to i32		; <i32> [#uses=1]
19	%su = sub i32 0, %cp		; <i32> [#uses=1]
20	%ge = getelementptr i8* %pn, i32 %su		; <i8*> [#uses=2]
21	tail call void @bcopy(i8* %ge) nounwind
22	br label %loop
23}
24
25define void @safe_bcopy_4038(i8* %from, i8* %to, i32 %size) nounwind {
26entry:
27	br i1 false, label %if.else, label %if.then12
28
29if.then12:		; preds = %entry
30	ret void
31
32if.else:		; preds = %entry
33	%sub.ptr.rhs.cast40 = ptrtoint i8* %from to i32		; <i32> [#uses=1]
34	br label %if.end54
35
36if.end54:		; preds = %if.end54, %if.else
37	%sub.ptr4912.pn = phi i8* [ %sub.ptr4912, %if.end54 ], [ null, %if.else ]		; <i8*> [#uses=1]
38	%sub.ptr7 = phi i8* [ %sub.ptr, %if.end54 ], [ null, %if.else ]		; <i8*> [#uses=2]
39	%sub.ptr.rhs.cast46.pn = ptrtoint i8* %from to i32		; <i32> [#uses=1]
40	%sub.ptr.lhs.cast45.pn = ptrtoint i8* %to to i32		; <i32> [#uses=1]
41	%sub.ptr.sub47.pn = sub i32 %sub.ptr.rhs.cast46.pn, %sub.ptr.lhs.cast45.pn		; <i32> [#uses=1]
42	%sub.ptr4912 = getelementptr i8* %sub.ptr4912.pn, i32 %sub.ptr.sub47.pn		; <i8*> [#uses=2]
43	tail call void @bcopy_4038(i8* %sub.ptr4912, i8* %sub.ptr7, i32 0) nounwind
44	%sub.ptr = getelementptr i8* %sub.ptr7, i32 %sub.ptr.rhs.cast40		; <i8*> [#uses=1]
45	br label %if.end54
46}
47
48declare void @bcopy(i8* nocapture) nounwind
49
50declare void @bcopy_4038(i8*, i8*, i32) nounwind
51