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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -newgvn -S %s | FileCheck %s
3; Ensure we do not incorrect do phi of ops
4source_filename = "/Users/dannyb/sources/llvm-clean/debug-build/pr33305.c"
5target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
6target triple = "x86_64-apple-macosx10.12.0"
7
8@a = common global i32 0, align 4
9@b = local_unnamed_addr global i32* @a, align 8
10@e = local_unnamed_addr global i32 -1, align 4
11@g = local_unnamed_addr global i32 1, align 4
12@c = common local_unnamed_addr global i32 0, align 4
13@f = common local_unnamed_addr global i32 0, align 4
14@h = common local_unnamed_addr global i32 0, align 4
15@str = private unnamed_addr constant [5 x i8] c"fine\00"
16@str.2 = private unnamed_addr constant [8 x i8] c"Screwed\00"
17
18; Function Attrs: nounwind optsize ssp uwtable
19define i32 @main() local_unnamed_addr #0 {
20; CHECK-LABEL: @main(
21; CHECK-NEXT:  entry:
22; CHECK-NEXT:    [[DOTPR_I:%.*]] = load i32, i32* @c, align 4, !tbaa !3
23; CHECK-NEXT:    [[CMP13_I:%.*]] = icmp slt i32 [[DOTPR_I]], 1
24; CHECK-NEXT:    br i1 [[CMP13_I]], label [[FOR_COND1_PREHEADER_LR_PH_I:%.*]], label [[ENTRY_FOR_END9_I_CRIT_EDGE:%.*]]
25; CHECK:       entry.for.end9.i_crit_edge:
26; CHECK-NEXT:    [[DOTPRE:%.*]] = load i32, i32* @h, align 4, !tbaa !3
27; CHECK-NEXT:    br label [[FOR_END9_I:%.*]]
28; CHECK:       for.cond1.preheader.lr.ph.i:
29; CHECK-NEXT:    [[G_PROMOTED14_I:%.*]] = load i32, i32* @g, align 4, !tbaa !3
30; CHECK-NEXT:    br label [[FOR_COND1_PREHEADER_I:%.*]]
31; CHECK:       for.cond1.preheader.i:
32; CHECK-NEXT:    [[INC816_I:%.*]] = phi i32 [ [[DOTPR_I]], [[FOR_COND1_PREHEADER_LR_PH_I]] ], [ [[INC8_I:%.*]], [[FOR_INC7_I:%.*]] ]
33; CHECK-NEXT:    [[TMP0:%.*]] = phi i32 [ [[G_PROMOTED14_I]], [[FOR_COND1_PREHEADER_LR_PH_I]] ], [ 0, [[FOR_INC7_I]] ]
34; CHECK-NEXT:    br label [[FOR_BODY3_I:%.*]]
35; CHECK:       for.body3.i:
36; CHECK-NEXT:    [[TMP1:%.*]] = phi i1 [ false, [[FOR_COND1_PREHEADER_I]] ], [ true, [[LOR_END_I:%.*]] ]
37; CHECK-NEXT:    [[INC12_I:%.*]] = phi i32 [ 0, [[FOR_COND1_PREHEADER_I]] ], [ [[INC_I:%.*]], [[LOR_END_I]] ]
38; CHECK-NEXT:    [[TMP2:%.*]] = phi i32 [ [[TMP0]], [[FOR_COND1_PREHEADER_I]] ], [ 0, [[LOR_END_I]] ]
39; CHECK-NEXT:    [[TOBOOL_I:%.*]] = icmp ne i32 [[TMP2]], 0
40; CHECK-NEXT:    [[OR_COND_I:%.*]] = and i1 [[TMP1]], [[TOBOOL_I]]
41; CHECK-NEXT:    br i1 [[OR_COND_I]], label [[LOR_END_I]], label [[LOR_RHS_I:%.*]]
42; CHECK:       lor.rhs.i:
43; CHECK-NEXT:    [[LNOT_I:%.*]] = xor i1 [[TOBOOL_I]], true
44; CHECK-NEXT:    [[LNOT_EXT_I:%.*]] = zext i1 [[LNOT_I]] to i32
45; CHECK-NEXT:    [[TMP3:%.*]] = load i32, i32* @e, align 4, !tbaa !3
46; CHECK-NEXT:    [[XOR_I:%.*]] = xor i32 [[TMP3]], [[LNOT_EXT_I]]
47; CHECK-NEXT:    store i32 [[XOR_I]], i32* @e, align 4, !tbaa !3
48; CHECK-NEXT:    br label [[LOR_END_I]]
49; CHECK:       lor.end.i:
50; CHECK-NEXT:    [[INC_I]] = add nuw nsw i32 [[INC12_I]], 1
51; CHECK-NEXT:    [[EXITCOND_I:%.*]] = icmp eq i32 [[INC_I]], 2
52; CHECK-NEXT:    br i1 [[EXITCOND_I]], label [[FOR_INC7_I]], label [[FOR_BODY3_I]]
53; CHECK:       for.inc7.i:
54; CHECK-NEXT:    [[INC8_I]] = add nsw i32 [[INC816_I]], 1
55; CHECK-NEXT:    [[CMP_I:%.*]] = icmp slt i32 [[INC816_I]], 0
56; CHECK-NEXT:    br i1 [[CMP_I]], label [[FOR_COND1_PREHEADER_I]], label [[FOR_COND_FOR_END9_CRIT_EDGE_I:%.*]]
57; CHECK:       for.cond.for.end9_crit_edge.i:
58; CHECK-NEXT:    store i32 0, i32* @g, align 4, !tbaa !3
59; CHECK-NEXT:    store i32 2, i32* @h, align 4, !tbaa !3
60; CHECK-NEXT:    store i32 [[INC8_I]], i32* @c, align 4, !tbaa !3
61; CHECK-NEXT:    br label [[FOR_END9_I]]
62; CHECK:       for.end9.i:
63; CHECK-NEXT:    [[TMP4:%.*]] = phi i32 [ [[DOTPRE]], [[ENTRY_FOR_END9_I_CRIT_EDGE]] ], [ 2, [[FOR_COND_FOR_END9_CRIT_EDGE_I]] ]
64; CHECK-NEXT:    [[TMP5:%.*]] = load i32*, i32** @b, align 8, !tbaa !7
65; CHECK-NEXT:    store i32 [[TMP4]], i32* [[TMP5]], align 4, !tbaa !3
66; CHECK-NEXT:    [[TMP6:%.*]] = load i32, i32* @e, align 4, !tbaa !3
67; CHECK-NEXT:    [[CMP10_I:%.*]] = icmp slt i32 [[TMP6]], -1
68; CHECK-NEXT:    br i1 [[CMP10_I]], label [[IF_THEN_I:%.*]], label [[FN1_EXIT:%.*]]
69; CHECK:       if.then.i:
70; CHECK-NEXT:    [[TMP7:%.*]] = load i32, i32* @f, align 4, !tbaa !3
71; CHECK-NEXT:    store i32 [[TMP7]], i32* [[TMP5]], align 4, !tbaa !3
72; CHECK-NEXT:    br label [[FN1_EXIT]]
73; CHECK:       fn1.exit:
74; CHECK-NEXT:    [[TMP8:%.*]] = load i32, i32* @a, align 4, !tbaa !3
75; CHECK-NEXT:    [[TOBOOL:%.*]] = icmp eq i32 [[TMP8]], 0
76; CHECK-NEXT:    br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
77; CHECK:       if.then:
78; CHECK-NEXT:    [[PUTS2:%.*]] = tail call i32 @puts(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @str.2, i64 0, i64 0))
79; CHECK-NEXT:    tail call void @abort()
80; CHECK-NEXT:    unreachable
81; CHECK:       if.end:
82; CHECK-NEXT:    [[PUTS:%.*]] = tail call i32 @puts(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @str, i64 0, i64 0))
83; CHECK-NEXT:    ret i32 0
84;
85entry:
86  %.pr.i = load i32, i32* @c, align 4, !tbaa !3
87  %cmp13.i = icmp slt i32 %.pr.i, 1
88  br i1 %cmp13.i, label %for.cond1.preheader.lr.ph.i, label %entry.for.end9.i_crit_edge
89
90entry.for.end9.i_crit_edge:                       ; preds = %entry
91  %.pre = load i32, i32* @h, align 4, !tbaa !3
92  br label %for.end9.i
93
94for.cond1.preheader.lr.ph.i:                      ; preds = %entry
95  %g.promoted14.i = load i32, i32* @g, align 4, !tbaa !3
96  br label %for.cond1.preheader.i
97
98for.cond1.preheader.i:                            ; preds = %for.inc7.i, %for.cond1.preheader.lr.ph.i
99  %inc816.i = phi i32 [ %.pr.i, %for.cond1.preheader.lr.ph.i ], [ %inc8.i, %for.inc7.i ]
100  %0 = phi i32 [ %g.promoted14.i, %for.cond1.preheader.lr.ph.i ], [ 0, %for.inc7.i ]
101  br label %for.body3.i
102
103for.body3.i:                                      ; preds = %lor.end.i, %for.cond1.preheader.i
104  %1 = phi i1 [ false, %for.cond1.preheader.i ], [ true, %lor.end.i ]
105  %inc12.i = phi i32 [ 0, %for.cond1.preheader.i ], [ %inc.i, %lor.end.i ]
106  %2 = phi i32 [ %0, %for.cond1.preheader.i ], [ 0, %lor.end.i ]
107  %tobool.i = icmp ne i32 %2, 0
108  %or.cond.i = and i1 %1, %tobool.i
109  br i1 %or.cond.i, label %lor.end.i, label %lor.rhs.i
110
111lor.rhs.i:                                        ; preds = %for.body3.i
112  %lnot.i = xor i1 %tobool.i, true
113  %lnot.ext.i = zext i1 %lnot.i to i32
114  %3 = load i32, i32* @e, align 4, !tbaa !3
115  %xor.i = xor i32 %3, %lnot.ext.i
116  store i32 %xor.i, i32* @e, align 4, !tbaa !3
117  br label %lor.end.i
118
119lor.end.i:                                        ; preds = %lor.rhs.i, %for.body3.i
120  %inc.i = add nuw nsw i32 %inc12.i, 1
121  %exitcond.i = icmp eq i32 %inc.i, 2
122  br i1 %exitcond.i, label %for.inc7.i, label %for.body3.i
123
124for.inc7.i:                                       ; preds = %lor.end.i
125  %inc8.i = add nsw i32 %inc816.i, 1
126  %cmp.i = icmp slt i32 %inc816.i, 0
127  br i1 %cmp.i, label %for.cond1.preheader.i, label %for.cond.for.end9_crit_edge.i
128
129for.cond.for.end9_crit_edge.i:                    ; preds = %for.inc7.i
130  store i32 0, i32* @g, align 4, !tbaa !3
131  store i32 2, i32* @h, align 4, !tbaa !3
132  store i32 %inc8.i, i32* @c, align 4, !tbaa !3
133  br label %for.end9.i
134
135for.end9.i:                                       ; preds = %entry.for.end9.i_crit_edge, %for.cond.for.end9_crit_edge.i
136  %4 = phi i32 [ %.pre, %entry.for.end9.i_crit_edge ], [ 2, %for.cond.for.end9_crit_edge.i ]
137  %5 = load i32*, i32** @b, align 8, !tbaa !7
138  store i32 %4, i32* %5, align 4, !tbaa !3
139  %6 = load i32, i32* @e, align 4, !tbaa !3
140  %cmp10.i = icmp slt i32 %6, -1
141  br i1 %cmp10.i, label %if.then.i, label %fn1.exit
142
143if.then.i:                                        ; preds = %for.end9.i
144  %7 = load i32, i32* @f, align 4, !tbaa !3
145  store i32 %7, i32* %5, align 4, !tbaa !3
146  br label %fn1.exit
147
148fn1.exit:                                         ; preds = %if.then.i, %for.end9.i
149  %8 = load i32, i32* @a, align 4, !tbaa !3
150  %tobool = icmp eq i32 %8, 0
151  br i1 %tobool, label %if.end, label %if.then
152
153if.then:                                          ; preds = %fn1.exit
154  %puts2 = tail call i32 @puts(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @str.2, i64 0, i64 0))
155  tail call void @abort() #3
156  unreachable
157
158if.end:                                           ; preds = %fn1.exit
159  %puts = tail call i32 @puts(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @str, i64 0, i64 0))
160  ret i32 0
161}
162
163; Function Attrs: noreturn nounwind optsize
164declare void @abort() local_unnamed_addr #1
165
166; Function Attrs: nounwind
167declare i32 @puts(i8* nocapture readonly) local_unnamed_addr #2
168
169attributes #0 = { nounwind optsize ssp uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="penryn" "target-features"="+cx16,+fxsr,+mmx,+sse,+sse2,+sse3,+sse4.1,+ssse3,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
170attributes #1 = { noreturn nounwind optsize "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="penryn" "target-features"="+cx16,+fxsr,+mmx,+sse,+sse2,+sse3,+sse4.1,+ssse3,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
171attributes #2 = { nounwind }
172attributes #3 = { noreturn nounwind optsize }
173
174!llvm.module.flags = !{!0, !1}
175!llvm.ident = !{!2}
176
177!0 = !{i32 1, !"wchar_size", i32 4}
178!1 = !{i32 7, !"PIC Level", i32 2}
179!2 = !{!"clang version 5.0.0 (http://llvm.org/git/clang.git e97b4dda83fd49e0218ea06ba4e37796a81b2027) (/Users/dannyb/sources/llvm-clean b38f051979e4ac2aa6513e40046d120fd472cb96)"}
180!3 = !{!4, !4, i64 0}
181!4 = !{!"int", !5, i64 0}
182!5 = !{!"omnipotent char", !6, i64 0}
183!6 = !{!"Simple C/C++ TBAA"}
184!7 = !{!8, !8, i64 0}
185!8 = !{!"any pointer", !5, i64 0}
186