; LLVM IR from aws/s2n-tls :: crypto (s2n_openssl_x509)

; 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"

%struct.s2n_debug_info = type { ptr, ptr }
%struct.s2n_result = type { i32 }

@_s2n_debug_info = external thread_local global %struct.s2n_debug_info, align 8
@s2n_errno = external thread_local global i32, align 4
@.str.7 = external hidden unnamed_addr constant [95 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [95 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare nonnull ptr @llvm.threadlocal.address.p0(ptr nonnull) #0

; Function Attrs: nounwind willreturn memory(read)
declare ptr @strrchr(ptr noundef, i32 noundef) #1

declare i32 @s2n_calculate_stacktrace() #2

; Function Attrs: nounwind uwtable
declare dso_local i32 @s2n_openssl_x509_parse_impl(ptr noundef, ptr noundef, ptr noundef) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #4

; Function Attrs: nounwind uwtable
define dso_local i32 @s2n_openssl_x509_parse_without_length_validation(ptr noundef %0, ptr noundef %1) #3 {
  %3 = alloca %struct.s2n_result, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca %struct.s2n_result, align 4
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  br label %9

9:                                                ; preds = %2
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = icmp ne ptr %10, null
  br i1 %11, label %44, label %12

12:                                               ; preds = %9
  br label %13

13:                                               ; preds = %12
  br label %14

14:                                               ; preds = %13
  %15 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %16 = getelementptr inbounds %struct.s2n_debug_info, ptr %15, i32 0, i32 0
  store ptr @.str.7, ptr %16, align 8, !tbaa !9
  %17 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %18 = getelementptr inbounds %struct.s2n_debug_info, ptr %17, i32 0, i32 0
  %19 = load ptr, ptr %18, align 8, !tbaa !9
  %20 = getelementptr inbounds i8, ptr %19, i64 21
  %21 = call ptr @strrchr(ptr noundef %20, i32 noundef 47) #6
  %22 = icmp ne ptr %21, null
  br i1 %22, label %23, label %30

23:                                               ; preds = %14
  %24 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %25 = getelementptr inbounds %struct.s2n_debug_info, ptr %24, i32 0, i32 0
  %26 = load ptr, ptr %25, align 8, !tbaa !9
  %27 = getelementptr inbounds i8, ptr %26, i64 21
  %28 = call ptr @strrchr(ptr noundef %27, i32 noundef 47) #6
  %29 = getelementptr inbounds i8, ptr %28, i64 1
  br label %35

30:                                               ; preds = %14
  %31 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %32 = getelementptr inbounds %struct.s2n_debug_info, ptr %31, i32 0, i32 0
  %33 = load ptr, ptr %32, align 8, !tbaa !9
  %34 = getelementptr inbounds i8, ptr %33, i64 21
  br label %35

35:                                               ; preds = %30, %23
  %36 = phi ptr [ %29, %23 ], [ %34, %30 ]
  %37 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %38 = getelementptr inbounds %struct.s2n_debug_info, ptr %37, i32 0, i32 1
  store ptr %36, ptr %38, align 8, !tbaa !11
  %39 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %39, align 4, !tbaa !12
  %40 = call i32 @s2n_calculate_stacktrace()
  br label %41

41:                                               ; preds = %35
  %42 = getelementptr inbounds %struct.s2n_result, ptr %3, i32 0, i32 0
  store i32 -1, ptr %42, align 4, !tbaa !14
  br label %98

43:                                               ; No predecessors!
  br label %44

44:                                               ; preds = %43, %9
  br label %45

45:                                               ; preds = %44
  br label %46

46:                                               ; preds = %45
  %47 = load ptr, ptr %5, align 8, !tbaa !5
  %48 = icmp ne ptr %47, null
  br i1 %48, label %81, label %49

49:                                               ; preds = %46
  br label %50

50:                                               ; preds = %49
  br label %51

51:                                               ; preds = %50
  %52 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %53 = getelementptr inbounds %struct.s2n_debug_info, ptr %52, i32 0, i32 0
  store ptr @.str.8, ptr %53, align 8, !tbaa !9
  %54 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %55 = getelementptr inbounds %struct.s2n_debug_info, ptr %54, i32 0, i32 0
  %56 = load ptr, ptr %55, align 8, !tbaa !9
  %57 = getelementptr inbounds i8, ptr %56, i64 21
  %58 = call ptr @strrchr(ptr noundef %57, i32 noundef 47) #6
  %59 = icmp ne ptr %58, null
  br i1 %59, label %60, label %67

60:                                               ; preds = %51
  %61 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %62 = getelementptr inbounds %struct.s2n_debug_info, ptr %61, i32 0, i32 0
  %63 = load ptr, ptr %62, align 8, !tbaa !9
  %64 = getelementptr inbounds i8, ptr %63, i64 21
  %65 = call ptr @strrchr(ptr noundef %64, i32 noundef 47) #6
  %66 = getelementptr inbounds i8, ptr %65, i64 1
  br label %72

67:                                               ; preds = %51
  %68 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %69 = getelementptr inbounds %struct.s2n_debug_info, ptr %68, i32 0, i32 0
  %70 = load ptr, ptr %69, align 8, !tbaa !9
  %71 = getelementptr inbounds i8, ptr %70, i64 21
  br label %72

72:                                               ; preds = %67, %60
  %73 = phi ptr [ %66, %60 ], [ %71, %67 ]
  %74 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %75 = getelementptr inbounds %struct.s2n_debug_info, ptr %74, i32 0, i32 1
  store ptr %73, ptr %75, align 8, !tbaa !11
  %76 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %76, align 4, !tbaa !12
  %77 = call i32 @s2n_calculate_stacktrace()
  br label %78

78:                                               ; preds = %72
  %79 = getelementptr inbounds %struct.s2n_result, ptr %3, i32 0, i32 0
  store i32 -1, ptr %79, align 4, !tbaa !14
  br label %98

80:                                               ; No predecessors!
  br label %81

81:                                               ; preds = %80, %46
  br label %82

82:                                               ; preds = %81
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #7
  store i32 0, ptr %6, align 4, !tbaa !12
  br label %83

83:                                               ; preds = %82
  %84 = load ptr, ptr %4, align 8, !tbaa !5
  %85 = load ptr, ptr %5, align 8, !tbaa !5
  %86 = call i32 @s2n_openssl_x509_parse_impl(ptr noundef %84, ptr noundef %85, ptr noundef %6)
  %87 = getelementptr inbounds %struct.s2n_result, ptr %7, i32 0, i32 0
  store i32 %86, ptr %87, align 4
  %88 = getelementptr inbounds %struct.s2n_result, ptr %7, i32 0, i32 0
  %89 = load i32, ptr %88, align 4
  %90 = call zeroext i1 @s2n_result_is_ok(i32 %89)
  br i1 %90, label %93, label %91

91:                                               ; preds = %83
  %92 = getelementptr inbounds %struct.s2n_result, ptr %3, i32 0, i32 0
  store i32 -1, ptr %92, align 4, !tbaa !14
  store i32 1, ptr %8, align 4
  br label %97

93:                                               ; preds = %83
  br label %94

94:                                               ; preds = %93
  br label %95

95:                                               ; preds = %94
  %96 = getelementptr inbounds %struct.s2n_result, ptr %3, i32 0, i32 0
  store i32 0, ptr %96, align 4, !tbaa !14
  store i32 1, ptr %8, align 4
  br label %97

97:                                               ; preds = %95, %91
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  br label %98

98:                                               ; preds = %97, %78, %41
  %99 = getelementptr inbounds %struct.s2n_result, ptr %3, i32 0, i32 0
  %100 = load i32, ptr %99, align 4
  ret i32 %100
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden zeroext i1 @s2n_result_is_ok(i32) #5

attributes #0 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #1 = { nounwind willreturn memory(read) "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 = { "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 #3 = { nounwind 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 #4 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { inlinehint nounwind 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 #6 = { nounwind willreturn memory(read) }
attributes #7 = { 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/C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"s2n_debug_info", !6, i64 0, !6, i64 8}
!11 = !{!10, !6, i64 8}
!12 = !{!13, !13, i64 0}
!13 = !{!"int", !7, i64 0}
!14 = !{!15, !13, i64 0}
!15 = !{!"", !13, 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"

%struct.s2n_debug_info = type { ptr, ptr }

@_s2n_debug_info = external thread_local local_unnamed_addr global %struct.s2n_debug_info, align 8
@s2n_errno = external thread_local local_unnamed_addr global i32, align 4
@.str.7 = external hidden unnamed_addr constant [95 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [95 x i8], align 1

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare nonnull ptr @llvm.threadlocal.address.p0(ptr nonnull) #0

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare ptr @strrchr(ptr noundef, i32 noundef) local_unnamed_addr #1

declare i32 @s2n_calculate_stacktrace() local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare dso_local i32 @s2n_openssl_x509_parse_impl(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #4

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #4

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 1) i32 @s2n_openssl_x509_parse_without_length_validation(ptr noundef %0, ptr noundef %1) local_unnamed_addr #3 {
  %3 = alloca i32, align 4
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %4, label %12

4:                                                ; preds = %2
  %5 = tail call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  store ptr @.str.7, ptr %5, align 8, !tbaa !5
  %6 = tail call ptr @strrchr(ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @.str.7, i64 21), i32 noundef 47) #6
  %.not8 = icmp eq ptr %6, null
  %7 = getelementptr inbounds i8, ptr %6, i64 1
  %8 = select i1 %.not8, ptr getelementptr inbounds (i8, ptr @.str.7, i64 21), ptr %7
  %9 = getelementptr inbounds i8, ptr %5, i64 8
  store ptr %8, ptr %9, align 8, !tbaa !10
  %10 = tail call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %10, align 4, !tbaa !11
  %11 = tail call i32 @s2n_calculate_stacktrace() #7
  br label %24

12:                                               ; preds = %2
  %.not9 = icmp eq ptr %1, null
  br i1 %.not9, label %13, label %21

13:                                               ; preds = %12
  %14 = tail call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  store ptr @.str.8, ptr %14, align 8, !tbaa !5
  %15 = tail call ptr @strrchr(ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @.str.8, i64 21), i32 noundef 47) #6
  %.not10 = icmp eq ptr %15, null
  %16 = getelementptr inbounds i8, ptr %15, i64 1
  %17 = select i1 %.not10, ptr getelementptr inbounds (i8, ptr @.str.8, i64 21), ptr %16
  %18 = getelementptr inbounds i8, ptr %14, i64 8
  store ptr %17, ptr %18, align 8, !tbaa !10
  %19 = tail call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %19, align 4, !tbaa !11
  %20 = tail call i32 @s2n_calculate_stacktrace() #7
  br label %24

21:                                               ; preds = %12
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #7
  store i32 0, ptr %3, align 4, !tbaa !11
  %22 = call i32 @s2n_openssl_x509_parse_impl(ptr noundef nonnull %0, ptr noundef nonnull %1, ptr noundef nonnull %3)
  %23 = call zeroext i1 @s2n_result_is_ok(i32 %22)
  %not. = xor i1 %23, true
  %. = sext i1 %not. to i32
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #7
  br label %24

24:                                               ; preds = %21, %13, %4
  %.sroa.04.1 = phi i32 [ %., %21 ], [ -1, %13 ], [ -1, %4 ]
  ret i32 %.sroa.04.1
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden zeroext i1 @s2n_result_is_ok(i32) local_unnamed_addr #5

attributes #0 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #1 = { mustprogress nofree nounwind willreturn memory(argmem: read) "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 = { "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 #3 = { nounwind 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 #4 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { inlinehint nounwind 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 #6 = { nounwind willreturn memory(read) }
attributes #7 = { 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 = !{!"s2n_debug_info", !7, i64 0, !7, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!6, !7, i64 8}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !8, i64 0}


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