1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -S -enable-loop-simplifycfg-term-folding=true -loop-simplifycfg -verify-loop-info -verify-dom-info -verify-loop-lcssa < %s | FileCheck %s
3; RUN: opt -S -enable-loop-simplifycfg-term-folding=true -passes='require<domtree>,loop(simplify-cfg)' -verify-loop-info -verify-dom-info -verify-loop-lcssa < %s | FileCheck %s
4; RUN: opt -S -enable-loop-simplifycfg-term-folding=true -loop-simplifycfg -enable-mssa-loop-dependency=true -verify-memoryssa -verify-loop-info -verify-dom-info -verify-loop-lcssa < %s | FileCheck %s
5
6target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
7
8define void @c() {
9; CHECK-LABEL: @c(
10; CHECK-NEXT:  entry:
11; CHECK-NEXT:    br label [[D:%.*]]
12; CHECK:       d.loopexit:
13; CHECK-NEXT:    [[DOTLCSSA:%.*]] = phi i32 [ [[TMP1:%.*]], [[FOR_COND:%.*]] ]
14; CHECK-NEXT:    br label [[D]]
15; CHECK:       d:
16; CHECK-NEXT:    [[TMP0:%.*]] = phi i32 [ undef, [[ENTRY:%.*]] ], [ [[DOTLCSSA]], [[D_LOOPEXIT:%.*]] ]
17; CHECK-NEXT:    br label [[FOR_COND]]
18; CHECK:       for.cond:
19; CHECK-NEXT:    [[TMP1]] = phi i32 [ [[TMP0]], [[D]] ], [ 0, [[IF_END:%.*]] ]
20; CHECK-NEXT:    [[TOBOOL2:%.*]] = icmp eq i32 [[TMP1]], 0
21; CHECK-NEXT:    br i1 [[TOBOOL2]], label [[IF_END]], label [[D_LOOPEXIT]]
22; CHECK:       if.end:
23; CHECK-NEXT:    br label [[FOR_COND]]
24;
25entry:
26  br label %d
27
28d.loopexit:                                       ; preds = %if.end.7, %for.body
29  %.lcssa = phi i32 [ %1, %for.body ], [ 0, %if.end.7 ]
30  br label %d
31
32d:                                                ; preds = %d.loopexit, %entry
33  %0 = phi i32 [ undef, %entry ], [ %.lcssa, %d.loopexit ]
34  br label %for.cond
35
36for.cond:                                         ; preds = %if.end.8, %d
37  %1 = phi i32 [ %0, %d ], [ 0, %if.end.8 ]
38  br label %for.body
39
40for.body:                                         ; preds = %for.cond
41  %tobool2 = icmp eq i32 %1, 0
42  br i1 %tobool2, label %if.end, label %d.loopexit
43
44if.end:                                           ; preds = %for.body
45  br label %if.end.7
46
47if.end.7:                                         ; preds = %if.end
48  br i1 true, label %if.end.8, label %d.loopexit
49
50if.end.8:                                         ; preds = %if.end.7
51  br label %for.cond
52}
53