; LLVM IR from aws/s2n-tls :: crypto (s2n_hmac)

; 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_hmac_state = type { i32, i16, i32, i16, i8, %struct.s2n_hash_state, %struct.s2n_hash_state, %struct.s2n_hash_state, %struct.s2n_hash_state, [128 x i8], [64 x i8] }
%struct.s2n_hash_state = type { ptr, i32, i8, i64, %union.anon }
%union.anon = type { %struct.s2n_hash_evp_digest }
%struct.s2n_hash_evp_digest = type { %struct.s2n_evp_digest, %struct.s2n_evp_digest }
%struct.s2n_evp_digest = type { ptr, ptr }
%struct.s2n_hmac_evp_backup = type { %struct.s2n_hash_evp_digest, %struct.s2n_hash_evp_digest, %struct.s2n_hash_evp_digest, %struct.s2n_hash_evp_digest }

@_s2n_debug_info = external thread_local global %struct.s2n_debug_info, align 8
@s2n_errno = external thread_local global i32, align 4
@.str.21 = external hidden unnamed_addr constant [88 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: inlinehint nounwind uwtable
declare hidden zeroext i1 @s2n_result_is_ok(i32) #3

; Function Attrs: nounwind uwtable
declare dso_local i32 @s2n_hmac_state_validate(ptr noundef) #4

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

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #6

; Function Attrs: nounwind uwtable
define dso_local i32 @s2n_hmac_restore_evp_hash_state(ptr noundef %0, ptr noundef %1) #4 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca %struct.s2n_result, align 4
  %7 = alloca %struct.s2n_result, align 4
  %8 = alloca %struct.s2n_result, align 4
  %9 = alloca %struct.s2n_result, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  br label %10

10:                                               ; preds = %2
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = icmp ne ptr %11, null
  br i1 %12, label %44, label %13

13:                                               ; preds = %10
  br label %14

14:                                               ; preds = %13
  br label %15

15:                                               ; preds = %14
  %16 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %17 = getelementptr inbounds %struct.s2n_debug_info, ptr %16, i32 0, i32 0
  store ptr @.str.21, ptr %17, align 8, !tbaa !9
  %18 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %19 = getelementptr inbounds %struct.s2n_debug_info, ptr %18, i32 0, i32 0
  %20 = load ptr, ptr %19, align 8, !tbaa !9
  %21 = getelementptr inbounds i8, ptr %20, i64 21
  %22 = call ptr @strrchr(ptr noundef %21, i32 noundef 47) #7
  %23 = icmp ne ptr %22, null
  br i1 %23, label %24, label %31

24:                                               ; preds = %15
  %25 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %26 = getelementptr inbounds %struct.s2n_debug_info, ptr %25, i32 0, i32 0
  %27 = load ptr, ptr %26, align 8, !tbaa !9
  %28 = getelementptr inbounds i8, ptr %27, i64 21
  %29 = call ptr @strrchr(ptr noundef %28, i32 noundef 47) #7
  %30 = getelementptr inbounds i8, ptr %29, i64 1
  br label %36

31:                                               ; preds = %15
  %32 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %33 = getelementptr inbounds %struct.s2n_debug_info, ptr %32, i32 0, i32 0
  %34 = load ptr, ptr %33, align 8, !tbaa !9
  %35 = getelementptr inbounds i8, ptr %34, i64 21
  br label %36

36:                                               ; preds = %31, %24
  %37 = phi ptr [ %30, %24 ], [ %35, %31 ]
  %38 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %39 = getelementptr inbounds %struct.s2n_debug_info, ptr %38, i32 0, i32 1
  store ptr %37, ptr %39, align 8, !tbaa !11
  %40 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %40, align 4, !tbaa !12
  %41 = call i32 @s2n_calculate_stacktrace()
  br label %42

42:                                               ; preds = %36
  store i32 -1, ptr %3, align 4
  br label %114

43:                                               ; No predecessors!
  br label %44

44:                                               ; preds = %43, %10
  br label %45

45:                                               ; preds = %44
  br label %46

46:                                               ; preds = %45
  %47 = load ptr, ptr %5, align 8, !tbaa !5
  %48 = call i32 @s2n_hmac_state_validate(ptr noundef %47)
  %49 = getelementptr inbounds %struct.s2n_result, ptr %7, i32 0, i32 0
  store i32 %48, ptr %49, align 4
  %50 = getelementptr inbounds %struct.s2n_result, ptr %7, i32 0, i32 0
  %51 = load i32, ptr %50, align 4
  %52 = call zeroext i1 @s2n_result_is_ok(i32 %51)
  %53 = xor i1 %52, true
  %54 = xor i1 %53, true
  %55 = zext i1 %54 to i32
  %56 = sext i32 %55 to i64
  %57 = call i64 @llvm.expect.i64(i64 %56, i64 1)
  %58 = icmp ne i64 %57, 0
  br i1 %58, label %59, label %61

59:                                               ; preds = %46
  %60 = getelementptr inbounds %struct.s2n_result, ptr %6, i32 0, i32 0
  store i32 0, ptr %60, align 4, !tbaa !14
  br label %63

61:                                               ; preds = %46
  %62 = getelementptr inbounds %struct.s2n_result, ptr %6, i32 0, i32 0
  store i32 -1, ptr %62, align 4, !tbaa !14
  br label %63

63:                                               ; preds = %61, %59
  %64 = getelementptr inbounds %struct.s2n_result, ptr %6, i32 0, i32 0
  %65 = load i32, ptr %64, align 4
  %66 = call zeroext i1 @s2n_result_is_ok(i32 %65)
  br i1 %66, label %68, label %67

67:                                               ; preds = %63
  store i32 -1, ptr %3, align 4
  br label %114

68:                                               ; preds = %63
  br label %69

69:                                               ; preds = %68
  %70 = load ptr, ptr %5, align 8, !tbaa !5
  %71 = getelementptr inbounds %struct.s2n_hmac_state, ptr %70, i32 0, i32 5
  %72 = getelementptr inbounds %struct.s2n_hash_state, ptr %71, i32 0, i32 4
  %73 = load ptr, ptr %4, align 8, !tbaa !5
  %74 = getelementptr inbounds %struct.s2n_hmac_evp_backup, ptr %73, i32 0, i32 0
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %72, ptr align 8 %74, i64 32, i1 false), !tbaa.struct !16
  %75 = load ptr, ptr %5, align 8, !tbaa !5
  %76 = getelementptr inbounds %struct.s2n_hmac_state, ptr %75, i32 0, i32 6
  %77 = getelementptr inbounds %struct.s2n_hash_state, ptr %76, i32 0, i32 4
  %78 = load ptr, ptr %4, align 8, !tbaa !5
  %79 = getelementptr inbounds %struct.s2n_hmac_evp_backup, ptr %78, i32 0, i32 1
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %77, ptr align 8 %79, i64 32, i1 false), !tbaa.struct !16
  %80 = load ptr, ptr %5, align 8, !tbaa !5
  %81 = getelementptr inbounds %struct.s2n_hmac_state, ptr %80, i32 0, i32 7
  %82 = getelementptr inbounds %struct.s2n_hash_state, ptr %81, i32 0, i32 4
  %83 = load ptr, ptr %4, align 8, !tbaa !5
  %84 = getelementptr inbounds %struct.s2n_hmac_evp_backup, ptr %83, i32 0, i32 2
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %82, ptr align 8 %84, i64 32, i1 false), !tbaa.struct !16
  %85 = load ptr, ptr %5, align 8, !tbaa !5
  %86 = getelementptr inbounds %struct.s2n_hmac_state, ptr %85, i32 0, i32 8
  %87 = getelementptr inbounds %struct.s2n_hash_state, ptr %86, i32 0, i32 4
  %88 = load ptr, ptr %4, align 8, !tbaa !5
  %89 = getelementptr inbounds %struct.s2n_hmac_evp_backup, ptr %88, i32 0, i32 3
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %87, ptr align 8 %89, i64 32, i1 false), !tbaa.struct !16
  br label %90

90:                                               ; preds = %69
  %91 = load ptr, ptr %5, align 8, !tbaa !5
  %92 = call i32 @s2n_hmac_state_validate(ptr noundef %91)
  %93 = getelementptr inbounds %struct.s2n_result, ptr %9, i32 0, i32 0
  store i32 %92, ptr %93, align 4
  %94 = getelementptr inbounds %struct.s2n_result, ptr %9, i32 0, i32 0
  %95 = load i32, ptr %94, align 4
  %96 = call zeroext i1 @s2n_result_is_ok(i32 %95)
  %97 = xor i1 %96, true
  %98 = xor i1 %97, true
  %99 = zext i1 %98 to i32
  %100 = sext i32 %99 to i64
  %101 = call i64 @llvm.expect.i64(i64 %100, i64 1)
  %102 = icmp ne i64 %101, 0
  br i1 %102, label %103, label %105

103:                                              ; preds = %90
  %104 = getelementptr inbounds %struct.s2n_result, ptr %8, i32 0, i32 0
  store i32 0, ptr %104, align 4, !tbaa !14
  br label %107

105:                                              ; preds = %90
  %106 = getelementptr inbounds %struct.s2n_result, ptr %8, i32 0, i32 0
  store i32 -1, ptr %106, align 4, !tbaa !14
  br label %107

107:                                              ; preds = %105, %103
  %108 = getelementptr inbounds %struct.s2n_result, ptr %8, i32 0, i32 0
  %109 = load i32, ptr %108, align 4
  %110 = call zeroext i1 @s2n_result_is_ok(i32 %109)
  br i1 %110, label %112, label %111

111:                                              ; preds = %107
  store i32 -1, ptr %3, align 4
  br label %114

112:                                              ; preds = %107
  br label %113

113:                                              ; preds = %112
  store i32 0, ptr %3, align 4
  br label %114

114:                                              ; preds = %113, %111, %67, %42
  %115 = load i32, ptr %3, align 4
  ret i32 %115
}

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 = { 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 #4 = { 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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #7 = { 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, !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}
!16 = !{i64 0, i64 8, !5, i64 8, i64 8, !5, i64 16, i64 8, !5, i64 24, i64 8, !5}


; 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.21 = external hidden unnamed_addr constant [88 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: inlinehint nounwind uwtable
declare hidden zeroext i1 @s2n_result_is_ok(i32) local_unnamed_addr #3

; Function Attrs: nounwind uwtable
declare dso_local i32 @s2n_hmac_state_validate(ptr noundef) local_unnamed_addr #4

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #5

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 1) i32 @s2n_hmac_restore_evp_hash_state(ptr noundef readonly %0, ptr noundef %1) local_unnamed_addr #4 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %3, label %11

3:                                                ; preds = %2
  %4 = tail call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  store ptr @.str.21, ptr %4, align 8, !tbaa !5
  %5 = tail call ptr @strrchr(ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @.str.21, i64 21), i32 noundef 47) #6
  %.not16 = icmp eq ptr %5, null
  %6 = getelementptr inbounds i8, ptr %5, i64 1
  %7 = select i1 %.not16, ptr getelementptr inbounds (i8, ptr @.str.21, i64 21), ptr %6
  %8 = getelementptr inbounds i8, ptr %4, i64 8
  store ptr %7, ptr %8, align 8, !tbaa !10
  %9 = tail call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %9, align 4, !tbaa !11
  %10 = tail call i32 @s2n_calculate_stacktrace() #7
  br label %26

11:                                               ; preds = %2
  %12 = tail call i32 @s2n_hmac_state_validate(ptr noundef %1)
  %13 = tail call zeroext i1 @s2n_result_is_ok(i32 %12)
  %not. = xor i1 %13, true
  %. = sext i1 %not. to i32
  %14 = tail call zeroext i1 @s2n_result_is_ok(i32 %.)
  br i1 %14, label %15, label %26

15:                                               ; preds = %11
  %16 = getelementptr inbounds i8, ptr %1, i64 40
  tail call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(32) %16, ptr noundef nonnull align 8 dereferenceable(32) %0, i64 32, i1 false), !tbaa.struct !13
  %17 = getelementptr inbounds i8, ptr %1, i64 96
  %18 = getelementptr inbounds i8, ptr %0, i64 32
  tail call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(32) %17, ptr noundef nonnull align 8 dereferenceable(32) %18, i64 32, i1 false), !tbaa.struct !13
  %19 = getelementptr inbounds i8, ptr %1, i64 152
  %20 = getelementptr inbounds i8, ptr %0, i64 64
  tail call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(32) %19, ptr noundef nonnull align 8 dereferenceable(32) %20, i64 32, i1 false), !tbaa.struct !13
  %21 = getelementptr inbounds i8, ptr %1, i64 208
  %22 = getelementptr inbounds i8, ptr %0, i64 96
  tail call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(32) %21, ptr noundef nonnull align 8 dereferenceable(32) %22, i64 32, i1 false), !tbaa.struct !13
  %23 = tail call i32 @s2n_hmac_state_validate(ptr noundef %1)
  %24 = tail call zeroext i1 @s2n_result_is_ok(i32 %23)
  %not.18 = xor i1 %24, true
  %.17 = sext i1 %not.18 to i32
  %25 = tail call zeroext i1 @s2n_result_is_ok(i32 %.17)
  %not.19 = xor i1 %25, true
  %spec.select = sext i1 %not.19 to i32
  br label %26

26:                                               ; preds = %15, %11, %3
  %.0 = phi i32 [ -1, %3 ], [ -1, %11 ], [ %spec.select, %15 ]
  ret i32 %.0
}

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 = { 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 #4 = { 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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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}
!13 = !{i64 0, i64 8, !14, i64 8, i64 8, !14, i64 16, i64 8, !14, i64 24, i64 8, !14}
!14 = !{!7, !7, i64 0}


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