; LLVM IR from cvitatma/DSA :: 01-cpp/preliminaries.ll (Z6arraysv)

; 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.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@_ZTISt9bad_alloc = external constant ptr
@.str.5 = external hidden unnamed_addr constant [41 x i8], align 1

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #0

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z6arraysv() #1 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #8
  store i32 10, ptr %1, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #8
  store ptr null, ptr %2, align 8, !tbaa !9
  %7 = load i32, ptr %1, align 4, !tbaa !5
  %8 = sext i32 %7 to i64
  %9 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %8, i64 4)
  %10 = extractvalue { i64, i1 } %9, 1
  %11 = extractvalue { i64, i1 } %9, 0
  %12 = select i1 %10, i64 -1, i64 %11
  %13 = invoke noalias noundef nonnull ptr @_Znam(i64 noundef %12) #9
          to label %14 unwind label %15

14:                                               ; preds = %0
  store ptr %13, ptr %2, align 8, !tbaa !9
  br label %35

15:                                               ; preds = %0
  %16 = landingpad { ptr, i32 }
          cleanup
          catch ptr @_ZTISt9bad_alloc
  %17 = extractvalue { ptr, i32 } %16, 0
  store ptr %17, ptr %3, align 8
  %18 = extractvalue { ptr, i32 } %16, 1
  store i32 %18, ptr %4, align 4
  br label %19

19:                                               ; preds = %15
  %20 = load i32, ptr %4, align 4
  %21 = call i32 @llvm.eh.typeid.for.p0(ptr @_ZTISt9bad_alloc) #8
  %22 = icmp eq i32 %20, %21
  br i1 %22, label %23, label %45

23:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #8
  %24 = load ptr, ptr %3, align 8
  %25 = call ptr @__cxa_begin_catch(ptr %24) #8
  store ptr %25, ptr %5, align 8
  %26 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.5)
          to label %27 unwind label %30

27:                                               ; preds = %23
  %28 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %26, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %29 unwind label %30

29:                                               ; preds = %27
  invoke void @__cxa_rethrow() #10
          to label %54 unwind label %30

30:                                               ; preds = %29, %27, %23
  %31 = landingpad { ptr, i32 }
          cleanup
  %32 = extractvalue { ptr, i32 } %31, 0
  store ptr %32, ptr %3, align 8
  %33 = extractvalue { ptr, i32 } %31, 1
  store i32 %33, ptr %4, align 4
  invoke void @__cxa_end_catch()
          to label %34 unwind label %51

34:                                               ; preds = %30
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #8
  br label %45

35:                                               ; preds = %14
  %36 = load ptr, ptr %2, align 8, !tbaa !9
  %37 = icmp eq ptr %36, null
  br i1 %37, label %39, label %38

38:                                               ; preds = %35
  call void @_ZdaPv(ptr noundef %36) #11
  br label %39

39:                                               ; preds = %38, %35
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #8
  %40 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 1) #9
  store ptr %40, ptr %6, align 8, !tbaa !9
  %41 = load ptr, ptr %6, align 8, !tbaa !9
  %42 = icmp eq ptr %41, null
  br i1 %42, label %44, label %43

43:                                               ; preds = %39
  call void @_ZdlPvm(ptr noundef %41, i64 noundef 1) #11
  br label %44

44:                                               ; preds = %43, %39
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #8
  ret void

45:                                               ; preds = %34, %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #8
  br label %46

46:                                               ; preds = %45
  %47 = load ptr, ptr %3, align 8
  %48 = load i32, ptr %4, align 4
  %49 = insertvalue { ptr, i32 } poison, ptr %47, 0
  %50 = insertvalue { ptr, i32 } %49, i32 %48, 1
  resume { ptr, i32 } %50

51:                                               ; preds = %30
  %52 = landingpad { ptr, i32 }
          catch ptr null
  %53 = extractvalue { ptr, i32 } %52, 0
  call void @__clang_call_terminate(ptr %53) #12
  unreachable

54:                                               ; preds = %29
  unreachable
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #3

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) #4

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nounwind memory(none)
declare i32 @llvm.eh.typeid.for.p0(ptr) #5

declare ptr @__cxa_begin_catch(ptr)

declare void @__cxa_rethrow()

declare void @__cxa_end_catch()

; Function Attrs: noinline noreturn nounwind uwtable
declare hidden void @__clang_call_terminate(ptr noundef) #6

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) #7

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #4

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #7

attributes #0 = { inlinehint 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 #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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #4 = { nobuiltin allocsize(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 #5 = { nounwind memory(none) }
attributes #6 = { noinline noreturn nounwind uwtable "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 #7 = { nobuiltin 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 #8 = { nounwind }
attributes #9 = { builtin allocsize(0) }
attributes #10 = { noreturn }
attributes #11 = { builtin nounwind }
attributes #12 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}


; 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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local void @_Z6arraysv() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  ret void
}

declare i32 @__gxx_personality_v0(...)

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(none) 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" }

!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)"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass