; LLVM IR from aws/s2n-tls :: tests/unit (s2n_handshake_hashes_test)

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

@.str = external hidden unnamed_addr constant [89 x i8], align 1
@_s2n_debug_info = external thread_local global %struct.s2n_debug_info, align 8
@s2n_errno = external thread_local global i32, align 4

; Function Attrs: nounwind uwtable
define dso_local i32 @s2n_handshake_write_header(ptr noundef %0, i8 noundef zeroext %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i8, align 1
  %6 = alloca i16, align 2
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i8 %1, ptr %5, align 1, !tbaa !9
  br label %8

8:                                                ; preds = %2
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.s2n_stuffer, ptr %9, i32 0, i32 2
  %11 = load i32, ptr %10, align 4, !tbaa !10
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.s2n_stuffer, ptr %12, i32 0, i32 1
  %14 = load i32, ptr %13, align 8, !tbaa !14
  %15 = sub i32 %11, %14
  %16 = icmp ne i32 %15, 0
  br i1 %16, label %17, label %48

17:                                               ; preds = %8
  br label %18

18:                                               ; preds = %17
  br label %19

19:                                               ; preds = %18
  %20 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %21 = getelementptr inbounds %struct.s2n_debug_info, ptr %20, i32 0, i32 0
  store ptr @.str, ptr %21, align 8, !tbaa !15
  %22 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %23 = getelementptr inbounds %struct.s2n_debug_info, ptr %22, i32 0, i32 0
  %24 = load ptr, ptr %23, align 8, !tbaa !15
  %25 = getelementptr inbounds i8, ptr %24, i64 21
  %26 = call ptr @strrchr(ptr noundef %25, i32 noundef 47) #5
  %27 = icmp ne ptr %26, null
  br i1 %27, label %28, label %35

28:                                               ; preds = %19
  %29 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %30 = getelementptr inbounds %struct.s2n_debug_info, ptr %29, i32 0, i32 0
  %31 = load ptr, ptr %30, align 8, !tbaa !15
  %32 = getelementptr inbounds i8, ptr %31, i64 21
  %33 = call ptr @strrchr(ptr noundef %32, i32 noundef 47) #5
  %34 = getelementptr inbounds i8, ptr %33, i64 1
  br label %40

35:                                               ; preds = %19
  %36 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %37 = getelementptr inbounds %struct.s2n_debug_info, ptr %36, i32 0, i32 0
  %38 = load ptr, ptr %37, align 8, !tbaa !15
  %39 = getelementptr inbounds i8, ptr %38, i64 21
  br label %40

40:                                               ; preds = %35, %28
  %41 = phi ptr [ %34, %28 ], [ %39, %35 ]
  %42 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %43 = getelementptr inbounds %struct.s2n_debug_info, ptr %42, i32 0, i32 1
  store ptr %41, ptr %43, align 8, !tbaa !17
  %44 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653218, ptr %44, align 4, !tbaa !18
  %45 = call i32 @s2n_calculate_stacktrace()
  br label %46

46:                                               ; preds = %40
  store i32 -1, ptr %3, align 4
  br label %69

47:                                               ; No predecessors!
  br label %48

48:                                               ; preds = %47, %8
  br label %49

49:                                               ; preds = %48
  br label %50

50:                                               ; preds = %49
  %51 = load ptr, ptr %4, align 8, !tbaa !5
  %52 = load i8, ptr %5, align 1, !tbaa !9
  %53 = call i32 @s2n_stuffer_write_uint8(ptr noundef %51, i8 noundef zeroext %52)
  %54 = icmp sgt i32 %53, -1
  br i1 %54, label %56, label %55

55:                                               ; preds = %50
  store i32 -1, ptr %3, align 4
  br label %69

56:                                               ; preds = %50
  br label %57

57:                                               ; preds = %56
  call void @llvm.lifetime.start.p0(i64 2, ptr %6) #6
  store i16 0, ptr %6, align 2, !tbaa !19
  br label %58

58:                                               ; preds = %57
  %59 = load ptr, ptr %4, align 8, !tbaa !5
  %60 = load i16, ptr %6, align 2, !tbaa !19
  %61 = zext i16 %60 to i32
  %62 = call i32 @s2n_stuffer_write_uint24(ptr noundef %59, i32 noundef %61)
  %63 = icmp sgt i32 %62, -1
  br i1 %63, label %65, label %64

64:                                               ; preds = %58
  store i32 -1, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %68

65:                                               ; preds = %58
  br label %66

66:                                               ; preds = %65
  br label %67

67:                                               ; preds = %66
  store i32 0, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %68

68:                                               ; preds = %67, %64
  call void @llvm.lifetime.end.p0(i64 2, ptr %6) #6
  br label %69

69:                                               ; preds = %68, %55, %46
  %70 = load i32, ptr %3, align 4
  ret i32 %70
}

; 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

declare i32 @s2n_stuffer_write_uint8(ptr noundef, i8 noundef zeroext) #3

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

declare i32 @s2n_stuffer_write_uint24(ptr noundef, i32 noundef) #3

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

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = !{!11, !13, i64 28}
!11 = !{!"s2n_stuffer", !12, i64 0, !13, i64 24, !13, i64 28, !13, i64 32, !13, i64 36, !13, i64 36, !13, i64 36}
!12 = !{!"s2n_blob", !6, i64 0, !13, i64 8, !13, i64 12, !13, i64 16}
!13 = !{!"int", !7, i64 0}
!14 = !{!11, !13, i64 24}
!15 = !{!16, !6, i64 0}
!16 = !{!"s2n_debug_info", !6, i64 0, !6, i64 8}
!17 = !{!16, !6, i64 8}
!18 = !{!13, !13, i64 0}
!19 = !{!20, !20, i64 0}
!20 = !{!"short", !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"

%struct.s2n_debug_info = type { ptr, ptr }

@.str = external hidden unnamed_addr constant [89 x i8], align 1
@_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

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 1) i32 @s2n_handshake_write_header(ptr noundef %0, i8 noundef zeroext %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %0, i64 28
  %4 = load i32, ptr %3, align 4, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %0, i64 24
  %6 = load i32, ptr %5, align 8, !tbaa !12
  %.not = icmp eq i32 %4, %6
  br i1 %.not, label %15, label %7

7:                                                ; preds = %2
  %8 = tail call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  store ptr @.str, ptr %8, align 8, !tbaa !13
  %9 = tail call ptr @strrchr(ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @.str, i64 21), i32 noundef 47) #4
  %.not7 = icmp eq ptr %9, null
  %10 = getelementptr inbounds i8, ptr %9, i64 1
  %11 = select i1 %.not7, ptr getelementptr inbounds (i8, ptr @.str, i64 21), ptr %10
  %12 = getelementptr inbounds i8, ptr %8, i64 8
  store ptr %11, ptr %12, align 8, !tbaa !15
  %13 = tail call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653218, ptr %13, align 4, !tbaa !16
  %14 = tail call i32 @s2n_calculate_stacktrace() #5
  br label %20

15:                                               ; preds = %2
  %16 = tail call i32 @s2n_stuffer_write_uint8(ptr noundef nonnull %0, i8 noundef zeroext %1) #5
  %17 = icmp sgt i32 %16, -1
  br i1 %17, label %18, label %20

18:                                               ; preds = %15
  %19 = tail call i32 @s2n_stuffer_write_uint24(ptr noundef nonnull %0, i32 noundef 0) #5
  %.lobit = ashr i32 %19, 31
  br label %20

20:                                               ; preds = %15, %18, %7
  %.1 = phi i32 [ -1, %7 ], [ %.lobit, %18 ], [ -1, %15 ]
  ret i32 %.1
}

; 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

declare i32 @s2n_stuffer_write_uint8(ptr noundef, i8 noundef zeroext) local_unnamed_addr #3

declare i32 @s2n_stuffer_write_uint24(ptr noundef, i32 noundef) local_unnamed_addr #3

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 = { nounwind willreturn memory(read) }
attributes #5 = { 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: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,SimplifyCFGPass,TailCallElimPass