; LLVM IR from specinfo-ua/UAPKI :: library/uapkic/src (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.HmacCtx_st = type { ptr, ptr, i64, ptr }

@.str = external hidden unnamed_addr constant [14 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare void @stacktrace_create(ptr noundef, i64 noundef, i32 noundef, ptr noundef) #1

declare void @stacktrace_add(ptr noundef, i64 noundef, i32 noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

declare i32 @hash_update(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @hmac_reset(ptr noundef %0) #2 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  store i32 0, ptr %3, align 4, !tbaa !9
  br label %4

4:                                                ; preds = %1
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = icmp ne ptr %5, null
  br i1 %6, label %9, label %7

7:                                                ; preds = %4
  store i32 2, ptr %3, align 4, !tbaa !9
  %8 = load i32, ptr %3, align 4, !tbaa !9
  call void @stacktrace_create(ptr noundef @.str, i64 noundef 182, i32 noundef %8, ptr noundef null)
  br label %27

9:                                                ; preds = %4
  br label %10

10:                                               ; preds = %9
  br label %11

11:                                               ; preds = %10
  br label %12

12:                                               ; preds = %11
  %13 = load ptr, ptr %2, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.HmacCtx_st, ptr %13, i32 0, i32 3
  %15 = load ptr, ptr %14, align 8, !tbaa !11
  %16 = load ptr, ptr %2, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.HmacCtx_st, ptr %16, i32 0, i32 0
  %18 = load ptr, ptr %17, align 8, !tbaa !14
  %19 = call i32 @hash_update(ptr noundef %15, ptr noundef %18)
  store i32 %19, ptr %3, align 4, !tbaa !9
  %20 = load i32, ptr %3, align 4, !tbaa !9
  %21 = icmp ne i32 %20, 0
  br i1 %21, label %22, label %24

22:                                               ; preds = %12
  %23 = load i32, ptr %3, align 4, !tbaa !9
  call void @stacktrace_add(ptr noundef @.str, i64 noundef 184, i32 noundef %23)
  br label %27

24:                                               ; preds = %12
  br label %25

25:                                               ; preds = %24
  br label %26

26:                                               ; preds = %25
  br label %27

27:                                               ; preds = %26, %22, %7
  %28 = load i32, ptr %3, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  ret i32 %28
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 = { 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 #3 = { 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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !6, i64 24}
!12 = !{!"HmacCtx_st", !6, i64 0, !6, i64 8, !13, i64 16, !6, i64 24}
!13 = !{!"long", !7, i64 0}
!14 = !{!12, !6, 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"

@.str = external hidden unnamed_addr constant [14 x i8], align 1

declare void @stacktrace_create(ptr noundef, i64 noundef, i32 noundef, ptr noundef) local_unnamed_addr #0

declare void @stacktrace_add(ptr noundef, i64 noundef, i32 noundef) local_unnamed_addr #0

declare i32 @hash_update(ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local i32 @hmac_reset(ptr noundef readonly %0) local_unnamed_addr #1 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %2, label %3

2:                                                ; preds = %1
  tail call void @stacktrace_create(ptr noundef nonnull @.str, i64 noundef 182, i32 noundef 2, ptr noundef null) #2
  br label %9

3:                                                ; preds = %1
  %4 = getelementptr inbounds i8, ptr %0, i64 24
  %5 = load ptr, ptr %4, align 8, !tbaa !5
  %6 = load ptr, ptr %0, align 8, !tbaa !11
  %7 = tail call i32 @hash_update(ptr noundef %5, ptr noundef %6) #2
  %.not8 = icmp eq i32 %7, 0
  br i1 %.not8, label %9, label %8

8:                                                ; preds = %3
  tail call void @stacktrace_add(ptr noundef nonnull @.str, i64 noundef 184, i32 noundef %7) #2
  br label %9

9:                                                ; preds = %3, %8, %2
  %.0 = phi i32 [ %7, %8 ], [ 0, %3 ], [ 2, %2 ]
  ret i32 %.0
}

attributes #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 = { 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 #2 = { 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 24}
!6 = !{!"HmacCtx_st", !7, i64 0, !7, i64 8, !10, i64 16, !7, i64 24}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!6, !7, i64 0}


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