1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt -gvn -S < %s | FileCheck %s
4 ; Memdep had funny bug related to invariant.groups - because it did not
5 ; invalidated cache, in some very rare cases it was possible to show memory
6 ; dependence of the instruction that was deleted, but because other instruction
7 ; took it's place it resulted in call to vtable! Removing any of the branch
10 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
11 target triple = "x86_64-grtev4-linux-gnu"
13 %0 = type { i32 (...)**, %1 }
16 %3 = type { %4, i64, %5 }
18 %5 = type { i64, [8 x i8] }
20 define void @fail(i1* noalias sret, %0*, %1*, i8*) local_unnamed_addr #0 {
22 ; CHECK-NEXT: [[TMP5:%.*]] = bitcast %0* [[TMP1:%.*]] to i64 (%0*)***
23 ; CHECK-NEXT: [[TMP6:%.*]] = load i64 (%0*)**, i64 (%0*)*** [[TMP5]], align 8, !invariant.group !6
24 ; CHECK-NEXT: [[TMP7:%.*]] = getelementptr inbounds i64 (%0*)*, i64 (%0*)** [[TMP6]], i64 6
25 ; CHECK-NEXT: [[TMP8:%.*]] = load i64 (%0*)*, i64 (%0*)** [[TMP7]], align 8, !invariant.load !6
26 ; CHECK-NEXT: [[TMP9:%.*]] = tail call i64 [[TMP8]](%0* [[TMP1]]) #1
27 ; CHECK-NEXT: [[TMP10:%.*]] = getelementptr inbounds [[TMP1]], %1* [[TMP2:%.*]], i64 0, i32 0, i32 0, i32 0, i32 0
28 ; CHECK-NEXT: [[TMP11:%.*]] = load i8*, i8** [[TMP10]], align 8
29 ; CHECK-NEXT: store i8 0, i8* [[TMP11]], align 1
30 ; CHECK-NEXT: [[TMP12:%.*]] = bitcast i64 (%0*)** [[TMP6]] to i64 (%0*, i8*, i64)**
31 ; CHECK-NEXT: br i1 undef
32 ; CHECK: [[TMP14:%.*]] = bitcast %0* [[TMP1]] to i64 (%0*, i8*, i64)***
33 ; CHECK-NEXT: [[DOTPHI_TRANS_INSERT:%.*]] = getelementptr inbounds i64 (%0*, i8*, i64)*, i64 (%0*, i8*, i64)** [[TMP12]], i64 22
34 ; CHECK-NEXT: [[DOTPRE:%.*]] = load i64 (%0*, i8*, i64)*, i64 (%0*, i8*, i64)** [[DOTPHI_TRANS_INSERT]], align 8, !invariant.load !6
35 ; CHECK-NEXT: br label [[TMP15:%.*]]
36 ; CHECK: [[TMP16:%.*]] = call i64 [[DOTPRE]](%0* nonnull [[TMP1]], i8* null, i64 0) #1
38 %5 = bitcast %0* %1 to i64 (%0*)***
39 %6 = load i64 (%0*)**, i64 (%0*)*** %5, align 8, !invariant.group !6
40 %7 = getelementptr inbounds i64 (%0*)*, i64 (%0*)** %6, i64 6
41 %8 = load i64 (%0*)*, i64 (%0*)** %7, align 8, !invariant.load !6
42 %9 = tail call i64 %8(%0* %1) #1
43 %10 = getelementptr inbounds %1, %1* %2, i64 0, i32 0, i32 0, i32 0, i32 0
44 %11 = load i8*, i8** %10, align 8
45 store i8 0, i8* %11, align 1
46 br i1 undef, label %12, label %31
48 ; <label>:12: ; preds = %4
49 %13 = bitcast %0* %1 to i64 (%0*, i8*, i64)***
52 ; <label>:14: ; preds = %30, %12
53 %15 = load i64 (%0*, i8*, i64)**, i64 (%0*, i8*, i64)*** %13, align 8, !invariant.group !6
54 %16 = getelementptr inbounds i64 (%0*, i8*, i64)*, i64 (%0*, i8*, i64)** %15, i64 22
55 %17 = load i64 (%0*, i8*, i64)*, i64 (%0*, i8*, i64)** %16, align 8, !invariant.load !6
56 %18 = call i64 %17(%0* nonnull %1, i8* null, i64 0) #1
57 br i1 undef, label %30, label %19
59 ; <label>:19: ; preds = %14
60 br i1 undef, label %20, label %23
62 ; <label>:20: ; preds = %19
65 ; <label>:21: ; preds = %20
68 ; <label>:22: ; preds = %21
71 ; <label>:23: ; preds = %19
74 ; <label>:24: ; preds = %23
77 ; <label>:25: ; preds = %24
80 ; <label>:26: ; preds = %25
81 br i1 undef, label %27, label %28
83 ; <label>:27: ; preds = %26
86 ; <label>:28: ; preds = %26
89 ; <label>:29: ; preds = %28
92 ; <label>:30: ; preds = %29, %27, %22, %14
93 br i1 undef, label %14, label %31
95 ; <label>:31: ; preds = %30, %4
99 attributes #0 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "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"="x86-64" "target-features"="+fxsr,+mmx,+popcnt,+sse,+sse2,+sse3,+sse4.1,+sse4.2,+ssse3,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
100 attributes #1 = { nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "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"="x86-64" "target-features"="+fxsr,+mmx,+popcnt,+sse,+sse2,+sse3,+sse4.1,+sse4.2,+ssse3,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
102 !llvm.linker.options = !{}
103 !llvm.module.flags = !{!0, !1, !3, !4, !5}
105 !0 = !{i32 1, !"StrictVTablePointers", i32 1}
106 !1 = !{i32 3, !"StrictVTablePointersRequirement", !2}
107 !2 = !{!"StrictVTablePointers", i32 1}
108 !3 = !{i32 1, !"wchar_size", i32 4}
109 !4 = !{i32 7, !"PIC Level", i32 2}
110 !5 = !{i32 7, !"PIE Level", i32 2}