1; RUN: opt -simplifycfg -simplifycfg-require-and-preserve-domtree=1 < %s -disable-output
2
3target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
4target triple = "x86_64-pc-linux-gnu"
5
6; PR11825
7define void @test1() {
8entry:
9  br label %return
10
11while_block:                                      ; preds = %and_if_cont2, %and_if_cont
12  %newlen = sub i32 %newlen, 1
13  %newptr = getelementptr i8, i8* %newptr, i64 1
14  %test = icmp sgt i32 %newlen, 0
15  br i1 %test, label %and_if1, label %and_if_cont2
16
17and_if1:                                          ; preds = %while_block
18  %char = load i8, i8* %newptr
19  %test2 = icmp ule i8 %char, 32
20  br label %and_if_cont2
21
22and_if_cont2:                                     ; preds = %and_if1, %while_block
23  %a18 = phi i1 [ %test, %while_block ], [ %test2, %and_if1 ]
24  br i1 %a18, label %while_block, label %return
25
26return:                                           ; preds = %and_if_cont2, %and_if_cont
27  ret void
28}
29