; LLVM IR from machinefi/psa-crypto-esp32 :: psa_layer (psa_crypto)

; 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.psa_mac_operation_s = type { i32, i8, i8, %union.psa_driver_mac_context_t }
%union.psa_driver_mac_context_t = type { %struct.iotex_psa_mac_operation_t }
%struct.iotex_psa_mac_operation_t = type { i32, %union.anon.0 }
%union.anon.0 = type { %struct.iotex_psa_hmac_operation_t }
%struct.iotex_psa_hmac_operation_t = type { i32, %struct.psa_hash_operation_s, [64 x i8] }
%struct.psa_hash_operation_s = type { i32, %union.psa_driver_hash_context_t }
%union.psa_driver_hash_context_t = type { %struct.iotex_psa_hash_operation_t }
%struct.iotex_psa_hash_operation_t = type { i32, %union.anon }
%union.anon = type { %struct.iotex_sha256_context }
%struct.iotex_sha256_context = type { ptr }

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

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

; Function Attrs: nounwind uwtable
declare dso_local i32 @psa_mac_abort(ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @psa_mac_verify_finish(ptr noundef %0, ptr noundef %1, i64 noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i64 %2, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  store i32 -151, ptr %7, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  store i32 -151, ptr %8, align 4, !tbaa !11
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.psa_mac_operation_s, ptr %9, i32 0, i32 0
  %11 = load i32, ptr %10, align 8, !tbaa !13
  %12 = icmp eq i32 %11, 0
  br i1 %12, label %13, label %14

13:                                               ; preds = %3
  store i32 -137, ptr %7, align 4, !tbaa !11
  br label %35

14:                                               ; preds = %3
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.psa_mac_operation_s, ptr %15, i32 0, i32 2
  %17 = load i8, ptr %16, align 1
  %18 = and i8 %17, 1
  %19 = zext i8 %18 to i32
  %20 = icmp ne i32 %19, 0
  br i1 %20, label %21, label %22

21:                                               ; preds = %14
  store i32 -137, ptr %7, align 4, !tbaa !11
  br label %35

22:                                               ; preds = %14
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.psa_mac_operation_s, ptr %23, i32 0, i32 1
  %25 = load i8, ptr %24, align 4, !tbaa !15
  %26 = zext i8 %25 to i64
  %27 = load i64, ptr %6, align 8, !tbaa !9
  %28 = icmp ne i64 %26, %27
  br i1 %28, label %29, label %30

29:                                               ; preds = %22
  store i32 -149, ptr %7, align 4, !tbaa !11
  br label %35

30:                                               ; preds = %22
  %31 = load ptr, ptr %4, align 8, !tbaa !5
  %32 = load ptr, ptr %5, align 8, !tbaa !5
  %33 = load i64, ptr %6, align 8, !tbaa !9
  %34 = call i32 @psa_driver_wrapper_mac_verify_finish(ptr noundef %31, ptr noundef %32, i64 noundef %33)
  store i32 %34, ptr %7, align 4, !tbaa !11
  br label %35

35:                                               ; preds = %30, %29, %21, %13
  %36 = load ptr, ptr %4, align 8, !tbaa !5
  %37 = call i32 @psa_mac_abort(ptr noundef %36)
  store i32 %37, ptr %8, align 4, !tbaa !11
  %38 = load i32, ptr %7, align 4, !tbaa !11
  %39 = icmp eq i32 %38, 0
  br i1 %39, label %40, label %42

40:                                               ; preds = %35
  %41 = load i32, ptr %8, align 4, !tbaa !11
  br label %44

42:                                               ; preds = %35
  %43 = load i32, ptr %7, align 4, !tbaa !11
  br label %44

44:                                               ; preds = %42, %40
  %45 = phi i32 [ %41, %40 ], [ %43, %42 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  ret i32 %45
}

declare i32 @psa_driver_wrapper_mac_verify_finish(ptr noundef, ptr noundef, i64 noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { "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 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!14, !12, i64 0}
!14 = !{!"psa_mac_operation_s", !12, i64 0, !7, i64 4, !12, i64 5, !7, i64 8}
!15 = !{!14, !7, i64 4}


; 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"

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

; Function Attrs: nounwind uwtable
define dso_local i32 @psa_mac_verify_finish(ptr noundef %0, ptr noundef %1, i64 noundef %2) local_unnamed_addr #0 {
  %4 = load i32, ptr %0, align 8, !tbaa !5
  %5 = icmp eq i32 %4, 0
  br i1 %5, label %.thread, label %6

6:                                                ; preds = %3
  %7 = getelementptr inbounds i8, ptr %0, i64 5
  %8 = load i8, ptr %7, align 1
  %9 = and i8 %8, 1
  %.not = icmp eq i8 %9, 0
  br i1 %.not, label %10, label %.thread

10:                                               ; preds = %6
  %11 = getelementptr inbounds i8, ptr %0, i64 4
  %12 = load i8, ptr %11, align 4, !tbaa !10
  %13 = zext i8 %12 to i64
  %.not11 = icmp eq i64 %13, %2
  br i1 %.not11, label %15, label %.thread

.thread:                                          ; preds = %3, %6, %10
  %.0.ph = phi i32 [ -149, %10 ], [ -137, %6 ], [ -137, %3 ]
  %14 = tail call i32 @psa_mac_abort(ptr noundef nonnull %0)
  br label %19

15:                                               ; preds = %10
  %16 = tail call i32 @psa_driver_wrapper_mac_verify_finish(ptr noundef nonnull %0, ptr noundef %1, i64 noundef %2) #2
  %.fr = freeze i32 %16
  %17 = tail call i32 @psa_mac_abort(ptr noundef nonnull %0)
  %18 = icmp eq i32 %.fr, 0
  %spec.select = select i1 %18, i32 %17, i32 %.fr
  br label %19

19:                                               ; preds = %15, %.thread
  %20 = phi i32 [ %.0.ph, %.thread ], [ %spec.select, %15 ]
  ret i32 %20
}

declare i32 @psa_driver_wrapper_mac_verify_finish(ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #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 = { "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 0}
!6 = !{!"psa_mac_operation_s", !7, i64 0, !8, i64 4, !7, i64 5, !8, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!6, !8, i64 4}


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