; LLVM IR from dynexcoin/Dynex :: src/Common/StringView.ll (ZNK6Common10StringView5sliceEmm)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.Common::StringView" = type { ptr, i64 }

@.str = external hidden unnamed_addr constant [29 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [75 x i8], align 1
@__PRETTY_FUNCTION__._ZNK6Common10StringView5sliceEmm = external hidden unnamed_addr constant [55 x i8], align 1
@.str.9 = external hidden unnamed_addr constant [53 x i8], align 1

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK6Common10StringView5sliceEmm(ptr dead_on_unwind noalias writable sret(%"class.Common::StringView") align 8 %0, ptr noundef nonnull align 8 dereferenceable(16) %1, i64 noundef %2, i64 noundef %3) #1 align 2 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  store ptr %0, ptr %5, align 8
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i64 %2, ptr %7, align 8, !tbaa !9
  store i64 %3, ptr %8, align 8, !tbaa !9
  %9 = load ptr, ptr %6, align 8
  %10 = getelementptr inbounds %"class.Common::StringView", ptr %9, i32 0, i32 0
  %11 = load ptr, ptr %10, align 8, !tbaa !11
  %12 = icmp ne ptr %11, null
  br i1 %12, label %17, label %13

13:                                               ; preds = %4
  %14 = getelementptr inbounds %"class.Common::StringView", ptr %9, i32 0, i32 1
  %15 = load i64, ptr %14, align 8, !tbaa !13
  %16 = icmp eq i64 %15, 0
  br label %17

17:                                               ; preds = %13, %4
  %18 = phi i1 [ true, %4 ], [ %16, %13 ]
  br i1 %18, label %19, label %20

19:                                               ; preds = %17
  br label %22

20:                                               ; preds = %17
  call void @__assert_fail(ptr noundef @.str, ptr noundef @.str.2, i32 noundef 362, ptr noundef @__PRETTY_FUNCTION__._ZNK6Common10StringView5sliceEmm) #2
  unreachable

21:                                               ; No predecessors!
  br label %22

22:                                               ; preds = %21, %19
  %23 = load i64, ptr %7, align 8, !tbaa !9
  %24 = getelementptr inbounds %"class.Common::StringView", ptr %9, i32 0, i32 1
  %25 = load i64, ptr %24, align 8, !tbaa !13
  %26 = icmp ule i64 %23, %25
  br i1 %26, label %27, label %34

27:                                               ; preds = %22
  %28 = load i64, ptr %7, align 8, !tbaa !9
  %29 = load i64, ptr %8, align 8, !tbaa !9
  %30 = add i64 %28, %29
  %31 = getelementptr inbounds %"class.Common::StringView", ptr %9, i32 0, i32 1
  %32 = load i64, ptr %31, align 8, !tbaa !13
  %33 = icmp ule i64 %30, %32
  br label %34

34:                                               ; preds = %27, %22
  %35 = phi i1 [ false, %22 ], [ %33, %27 ]
  br i1 %35, label %36, label %37

36:                                               ; preds = %34
  br label %39

37:                                               ; preds = %34
  call void @__assert_fail(ptr noundef @.str.9, ptr noundef @.str.2, i32 noundef 363, ptr noundef @__PRETTY_FUNCTION__._ZNK6Common10StringView5sliceEmm) #2
  unreachable

38:                                               ; No predecessors!
  br label %39

39:                                               ; preds = %38, %36
  %40 = getelementptr inbounds %"class.Common::StringView", ptr %9, i32 0, i32 0
  %41 = load ptr, ptr %40, align 8, !tbaa !11
  %42 = load i64, ptr %7, align 8, !tbaa !9
  %43 = getelementptr inbounds i8, ptr %41, i64 %42
  %44 = load i64, ptr %8, align 8, !tbaa !9
  call void @_ZN6Common10StringViewC1EPKcm(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef %43, i64 noundef %44)
  ret void
}

declare void @_ZN6Common10StringViewC1EPKcm(ptr, ptr, i64)

attributes #0 = { noreturn nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { noreturn nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"_ZTSN6Common10StringViewE", !6, i64 0, !10, i64 8}
!13 = !{!12, !10, i64 8}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.Common::StringView" = type { ptr, i64 }

@.str = external hidden unnamed_addr constant [29 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [75 x i8], align 1
@__PRETTY_FUNCTION__._ZNK6Common10StringView5sliceEmm = external hidden unnamed_addr constant [55 x i8], align 1
@.str.9 = external hidden unnamed_addr constant [53 x i8], align 1

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK6Common10StringView5sliceEmm(ptr dead_on_unwind noalias writable sret(%"class.Common::StringView") align 8 %0, ptr nocapture noundef nonnull readonly align 8 dereferenceable(16) %1, i64 noundef %2, i64 noundef %3) local_unnamed_addr #1 align 2 {
  %5 = load ptr, ptr %1, align 8, !tbaa !5
  %.not = icmp ne ptr %5, null
  %6 = getelementptr inbounds i8, ptr %1, i64 8
  %7 = load i64, ptr %6, align 8
  %8 = icmp eq i64 %7, 0
  %or.cond = select i1 %.not, i1 true, i1 %8
  br i1 %or.cond, label %.critedge, label %9

9:                                                ; preds = %4
  tail call void @__assert_fail(ptr noundef nonnull @.str, ptr noundef nonnull @.str.2, i32 noundef 362, ptr noundef nonnull @__PRETTY_FUNCTION__._ZNK6Common10StringView5sliceEmm) #2
  unreachable

.critedge:                                        ; preds = %4
  %.not8 = icmp ult i64 %7, %2
  %10 = add i64 %3, %2
  %.not9 = icmp ugt i64 %10, %7
  %or.cond12 = or i1 %.not8, %.not9
  br i1 %or.cond12, label %.critedge2, label %11

.critedge2:                                       ; preds = %.critedge
  tail call void @__assert_fail(ptr noundef nonnull @.str.9, ptr noundef nonnull @.str.2, i32 noundef 363, ptr noundef nonnull @__PRETTY_FUNCTION__._ZNK6Common10StringView5sliceEmm) #2
  unreachable

11:                                               ; preds = %.critedge
  %12 = getelementptr inbounds i8, ptr %5, i64 %2
  tail call void @_ZN6Common10StringViewC1EPKcm(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef %12, i64 noundef %3)
  ret void
}

declare void @_ZN6Common10StringViewC1EPKcm(ptr, ptr, i64) local_unnamed_addr

attributes #0 = { noreturn nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { noreturn nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !7, i64 0}
!6 = !{!"_ZTSN6Common10StringViewE", !7, i64 0, !10, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"long", !8, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass