; LLVM IR from cryspen/libcrux :: sys/hacl/c/src (EverCrypt_AEAD)

; 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.EverCrypt_AEAD_state_s_s = type { i8, ptr }

@stderr = external global ptr, align 8
@.str = external hidden unnamed_addr constant [35 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [81 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local zeroext i8 @EverCrypt_AEAD_alg_of_state(ptr noundef %0) #0 {
  %2 = alloca i8, align 1
  %3 = alloca ptr, align 8
  %4 = alloca i8, align 1
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %4) #4
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.EverCrypt_AEAD_state_s_s, ptr %6, i32 0, i32 0
  %8 = load i8, ptr %7, align 8, !tbaa !9
  store i8 %8, ptr %4, align 1, !tbaa !11
  %9 = load i8, ptr %4, align 1, !tbaa !11
  %10 = zext i8 %9 to i32
  switch i32 %10, label %14 [
    i32 0, label %11
    i32 1, label %12
    i32 2, label %13
  ]

11:                                               ; preds = %1
  store i8 2, ptr %2, align 1
  store i32 1, ptr %5, align 4
  br label %17

12:                                               ; preds = %1
  store i8 0, ptr %2, align 1
  store i32 1, ptr %5, align 4
  br label %17

13:                                               ; preds = %1
  store i8 1, ptr %2, align 1
  store i32 1, ptr %5, align 4
  br label %17

14:                                               ; preds = %1
  %15 = load ptr, ptr @stderr, align 8, !tbaa !5
  %16 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %15, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 80) #4
  call void @exit(i32 noundef 253) #5
  unreachable

17:                                               ; preds = %13, %12, %11
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #4
  %18 = load i8, ptr %2, align 1
  ret i8 %18
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #2

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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 willreturn memory(argmem: readwrite) }
attributes #2 = { nounwind "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 = { noreturn nounwind "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 }
attributes #5 = { noreturn 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, !7, i64 0}
!10 = !{!"EverCrypt_AEAD_state_s_s", !7, i64 0, !6, i64 8}
!11 = !{!7, !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"

@stderr = external local_unnamed_addr global ptr, align 8
@.str = external hidden unnamed_addr constant [35 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [81 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local zeroext range(i8 0, 3) i8 @EverCrypt_AEAD_alg_of_state(ptr nocapture noundef readonly %0) local_unnamed_addr #0 {
  %2 = load i8, ptr %0, align 8, !tbaa !5
  %3 = icmp ult i8 %2, 3
  br i1 %3, label %switch.lookup, label %4

4:                                                ; preds = %1
  %5 = load ptr, ptr @stderr, align 8, !tbaa !10
  %6 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %5, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 80) #3
  tail call void @exit(i32 noundef 253) #4
  unreachable

switch.lookup:                                    ; preds = %1
  %7 = shl nuw nsw i8 %2, 3
  %switch.shiftamt = zext nneg i8 %7 to i24
  %switch.downshift = lshr i24 65538, %switch.shiftamt
  %switch.masked = trunc i24 %switch.downshift to i8
  ret i8 %switch.masked
}

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) local_unnamed_addr #2

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 = { nofree nounwind "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 = { noreturn nounwind "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 = { cold nounwind }
attributes #4 = { noreturn 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 = !{!"EverCrypt_AEAD_state_s_s", !7, i64 0, !9, i64 8}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!"any pointer", !7, i64 0}
!10 = !{!9, !9, i64 0}


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