; LLVM IR from aws/s2n-tls :: stuffer (s2n_stuffer)

; 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 }
%struct.s2n_stuffer = type { %struct.s2n_blob, i32, i32, i32, i8 }
%struct.s2n_blob = type { ptr, i32, i32, i8 }

@_s2n_debug_info = external thread_local global %struct.s2n_debug_info, align 8
@s2n_errno = external thread_local global i32, align 4
@.str.20 = external hidden unnamed_addr constant [92 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local i32 @s2n_stuffer_validate(ptr noundef) #0

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare nonnull ptr @llvm.threadlocal.address.p0(ptr nonnull) #1

; Function Attrs: nounwind willreturn memory(read)
declare ptr @strrchr(ptr noundef, i32 noundef) #2

declare i32 @s2n_calculate_stacktrace() #3

; Function Attrs: inlinehint nounwind uwtable
declare hidden zeroext i1 @s2n_result_is_ok(i32) #4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(none)
declare i64 @llvm.expect.i64(i64, i64) #5

; Function Attrs: nounwind uwtable
define dso_local i32 @s2n_stuffer_skip_read(ptr noundef %0, i32 noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca %struct.s2n_result, align 4
  %7 = alloca %struct.s2n_result, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  br label %8

8:                                                ; preds = %2
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = call i32 @s2n_stuffer_validate(ptr noundef %9)
  %11 = getelementptr inbounds %struct.s2n_result, ptr %7, i32 0, i32 0
  store i32 %10, ptr %11, align 4
  %12 = getelementptr inbounds %struct.s2n_result, ptr %7, i32 0, i32 0
  %13 = load i32, ptr %12, align 4
  %14 = call zeroext i1 @s2n_result_is_ok(i32 %13)
  %15 = xor i1 %14, true
  %16 = xor i1 %15, true
  %17 = zext i1 %16 to i32
  %18 = sext i32 %17 to i64
  %19 = call i64 @llvm.expect.i64(i64 %18, i64 1)
  %20 = icmp ne i64 %19, 0
  br i1 %20, label %21, label %23

21:                                               ; preds = %8
  %22 = getelementptr inbounds %struct.s2n_result, ptr %6, i32 0, i32 0
  store i32 0, ptr %22, align 4, !tbaa !11
  br label %25

23:                                               ; preds = %8
  %24 = getelementptr inbounds %struct.s2n_result, ptr %6, i32 0, i32 0
  store i32 -1, ptr %24, align 4, !tbaa !11
  br label %25

25:                                               ; preds = %23, %21
  %26 = getelementptr inbounds %struct.s2n_result, ptr %6, i32 0, i32 0
  %27 = load i32, ptr %26, align 4
  %28 = call zeroext i1 @s2n_result_is_ok(i32 %27)
  br i1 %28, label %30, label %29

29:                                               ; preds = %25
  store i32 -1, ptr %3, align 4
  br label %80

30:                                               ; preds = %25
  br label %31

31:                                               ; preds = %30
  br label %32

32:                                               ; preds = %31
  %33 = load ptr, ptr %4, align 8, !tbaa !5
  %34 = getelementptr inbounds %struct.s2n_stuffer, ptr %33, i32 0, i32 2
  %35 = load i32, ptr %34, align 4, !tbaa !13
  %36 = load ptr, ptr %4, align 8, !tbaa !5
  %37 = getelementptr inbounds %struct.s2n_stuffer, ptr %36, i32 0, i32 1
  %38 = load i32, ptr %37, align 8, !tbaa !16
  %39 = sub i32 %35, %38
  %40 = load i32, ptr %5, align 4, !tbaa !9
  %41 = icmp uge i32 %39, %40
  br i1 %41, label %73, label %42

42:                                               ; preds = %32
  br label %43

43:                                               ; preds = %42
  br label %44

44:                                               ; preds = %43
  %45 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %46 = getelementptr inbounds %struct.s2n_debug_info, ptr %45, i32 0, i32 0
  store ptr @.str.20, ptr %46, align 8, !tbaa !17
  %47 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %48 = getelementptr inbounds %struct.s2n_debug_info, ptr %47, i32 0, i32 0
  %49 = load ptr, ptr %48, align 8, !tbaa !17
  %50 = getelementptr inbounds i8, ptr %49, i64 21
  %51 = call ptr @strrchr(ptr noundef %50, i32 noundef 47) #6
  %52 = icmp ne ptr %51, null
  br i1 %52, label %53, label %60

53:                                               ; preds = %44
  %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 !17
  %57 = getelementptr inbounds i8, ptr %56, i64 21
  %58 = call ptr @strrchr(ptr noundef %57, i32 noundef 47) #6
  %59 = getelementptr inbounds i8, ptr %58, i64 1
  br label %65

60:                                               ; preds = %44
  %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 !17
  %64 = getelementptr inbounds i8, ptr %63, i64 21
  br label %65

65:                                               ; preds = %60, %53
  %66 = phi ptr [ %59, %53 ], [ %64, %60 ]
  %67 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %68 = getelementptr inbounds %struct.s2n_debug_info, ptr %67, i32 0, i32 1
  store ptr %66, ptr %68, align 8, !tbaa !19
  %69 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653201, ptr %69, align 4, !tbaa !9
  %70 = call i32 @s2n_calculate_stacktrace()
  br label %71

71:                                               ; preds = %65
  store i32 -1, ptr %3, align 4
  br label %80

72:                                               ; No predecessors!
  br label %73

73:                                               ; preds = %72, %32
  br label %74

74:                                               ; preds = %73
  %75 = load i32, ptr %5, align 4, !tbaa !9
  %76 = load ptr, ptr %4, align 8, !tbaa !5
  %77 = getelementptr inbounds %struct.s2n_stuffer, ptr %76, i32 0, i32 1
  %78 = load i32, ptr %77, align 8, !tbaa !16
  %79 = add i32 %78, %75
  store i32 %79, ptr %77, align 8, !tbaa !16
  store i32 0, ptr %3, align 4
  br label %80

80:                                               ; preds = %74, %71, %29
  %81 = load i32, ptr %3, align 4
  ret i32 %81
}

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { 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 #3 = { "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 = { 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 #5 = { nocallback nofree nosync nounwind willreturn memory(none) }
attributes #6 = { nounwind willreturn memory(read) }

!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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"", !10, i64 0}
!13 = !{!14, !10, i64 28}
!14 = !{!"s2n_stuffer", !15, i64 0, !10, i64 24, !10, i64 28, !10, i64 32, !10, i64 36, !10, i64 36, !10, i64 36}
!15 = !{!"s2n_blob", !6, i64 0, !10, i64 8, !10, i64 12, !10, i64 16}
!16 = !{!14, !10, i64 24}
!17 = !{!18, !6, i64 0}
!18 = !{!"s2n_debug_info", !6, i64 0, !6, i64 8}
!19 = !{!18, !6, 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"

%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.20 = external hidden unnamed_addr constant [92 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local i32 @s2n_stuffer_validate(ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare nonnull ptr @llvm.threadlocal.address.p0(ptr nonnull) #1

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare ptr @strrchr(ptr noundef, i32 noundef) local_unnamed_addr #2

declare i32 @s2n_calculate_stacktrace() local_unnamed_addr #3

; Function Attrs: inlinehint nounwind uwtable
declare hidden zeroext i1 @s2n_result_is_ok(i32) local_unnamed_addr #4

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 1) i32 @s2n_stuffer_skip_read(ptr noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = tail call i32 @s2n_stuffer_validate(ptr noundef %0)
  %4 = tail call zeroext i1 @s2n_result_is_ok(i32 %3)
  %not. = xor i1 %4, true
  %. = sext i1 %not. to i32
  %5 = tail call zeroext i1 @s2n_result_is_ok(i32 %.)
  br i1 %5, label %6, label %22

6:                                                ; preds = %2
  %7 = getelementptr inbounds i8, ptr %0, i64 28
  %8 = load i32, ptr %7, align 4, !tbaa !5
  %9 = getelementptr inbounds i8, ptr %0, i64 24
  %10 = load i32, ptr %9, align 8, !tbaa !12
  %11 = sub i32 %8, %10
  %.not = icmp ult i32 %11, %1
  br i1 %.not, label %12, label %20

12:                                               ; preds = %6
  %13 = tail call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  store ptr @.str.20, ptr %13, align 8, !tbaa !13
  %14 = tail call ptr @strrchr(ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @.str.20, i64 21), i32 noundef 47) #5
  %.not9 = icmp eq ptr %14, null
  %15 = getelementptr inbounds i8, ptr %14, i64 1
  %16 = select i1 %.not9, ptr getelementptr inbounds (i8, ptr @.str.20, i64 21), ptr %15
  %17 = getelementptr inbounds i8, ptr %13, i64 8
  store ptr %16, ptr %17, align 8, !tbaa !15
  %18 = tail call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653201, ptr %18, align 4, !tbaa !16
  %19 = tail call i32 @s2n_calculate_stacktrace() #6
  br label %22

20:                                               ; preds = %6
  %21 = add i32 %10, %1
  store i32 %21, ptr %9, align 8, !tbaa !12
  br label %22

22:                                               ; preds = %2, %20, %12
  %.0 = phi i32 [ 0, %20 ], [ -1, %12 ], [ -1, %2 ]
  ret i32 %.0
}

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { 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 #3 = { "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 = { 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 #5 = { nounwind willreturn memory(read) }
attributes #6 = { 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, !11, i64 28}
!6 = !{!"s2n_stuffer", !7, i64 0, !11, i64 24, !11, i64 28, !11, i64 32, !11, i64 36, !11, i64 36, !11, i64 36}
!7 = !{!"s2n_blob", !8, i64 0, !11, i64 8, !11, i64 12, !11, i64 16}
!8 = !{!"any pointer", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C/C++ TBAA"}
!11 = !{!"int", !9, i64 0}
!12 = !{!6, !11, i64 24}
!13 = !{!14, !8, i64 0}
!14 = !{!"s2n_debug_info", !8, i64 0, !8, i64 8}
!15 = !{!14, !8, i64 8}
!16 = !{!11, !11, i64 0}


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