; 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 }

; 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: 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) #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

; Function Attrs: nounwind uwtable
declare hidden zeroext i8 @decrypt_chacha20_poly1305(ptr noundef, ptr noundef, i32 noundef, ptr noundef, i32 noundef, ptr noundef, i32 noundef, ptr noundef, ptr noundef) #3

; Function Attrs: nounwind uwtable
define dso_local zeroext i8 @EverCrypt_AEAD_decrypt_expand_chacha20_poly1305(ptr noundef %0, ptr noundef %1, i32 noundef %2, ptr noundef %3, i32 noundef %4, ptr noundef %5, i32 noundef %6, ptr noundef %7, ptr noundef %8) #3 {
  %10 = alloca ptr, align 8
  %11 = alloca ptr, align 8
  %12 = alloca i32, align 4
  %13 = alloca ptr, align 8
  %14 = alloca i32, align 4
  %15 = alloca ptr, align 8
  %16 = alloca i32, align 4
  %17 = alloca ptr, align 8
  %18 = alloca ptr, align 8
  %19 = alloca [32 x i8], align 16
  %20 = alloca %struct.EverCrypt_AEAD_state_s_s, align 8
  %21 = alloca ptr, align 8
  %22 = alloca i8, align 1
  store ptr %0, ptr %10, align 8, !tbaa !5
  store ptr %1, ptr %11, align 8, !tbaa !5
  store i32 %2, ptr %12, align 4, !tbaa !9
  store ptr %3, ptr %13, align 8, !tbaa !5
  store i32 %4, ptr %14, align 4, !tbaa !9
  store ptr %5, ptr %15, align 8, !tbaa !5
  store i32 %6, ptr %16, align 4, !tbaa !9
  store ptr %7, ptr %17, align 8, !tbaa !5
  store ptr %8, ptr %18, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 32, ptr %19) #4
  call void @llvm.memset.p0.i64(ptr align 16 %19, i8 0, i64 32, i1 false)
  call void @llvm.lifetime.start.p0(i64 16, ptr %20) #4
  %23 = getelementptr inbounds %struct.EverCrypt_AEAD_state_s_s, ptr %20, i32 0, i32 0
  store i8 0, ptr %23, align 8, !tbaa !11
  %24 = getelementptr inbounds %struct.EverCrypt_AEAD_state_s_s, ptr %20, i32 0, i32 1
  %25 = getelementptr inbounds [32 x i8], ptr %19, i64 0, i64 0
  store ptr %25, ptr %24, align 8, !tbaa !13
  %26 = getelementptr inbounds [32 x i8], ptr %19, i64 0, i64 0
  %27 = load ptr, ptr %10, align 8, !tbaa !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %26, ptr align 1 %27, i64 32, i1 false)
  call void @llvm.lifetime.start.p0(i64 8, ptr %21) #4
  store ptr %20, ptr %21, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %22) #4
  %28 = load ptr, ptr %21, align 8, !tbaa !5
  %29 = load ptr, ptr %11, align 8, !tbaa !5
  %30 = load i32, ptr %12, align 4, !tbaa !9
  %31 = load ptr, ptr %13, align 8, !tbaa !5
  %32 = load i32, ptr %14, align 4, !tbaa !9
  %33 = load ptr, ptr %15, align 8, !tbaa !5
  %34 = load i32, ptr %16, align 4, !tbaa !9
  %35 = load ptr, ptr %17, align 8, !tbaa !5
  %36 = load ptr, ptr %18, align 8, !tbaa !5
  %37 = call zeroext i8 @decrypt_chacha20_poly1305(ptr noundef %28, ptr noundef %29, i32 noundef %30, ptr noundef %31, i32 noundef %32, ptr noundef %33, i32 noundef %34, ptr noundef %35, ptr noundef %36)
  store i8 %37, ptr %22, align 1, !tbaa !14
  %38 = load i8, ptr %22, align 1, !tbaa !14
  call void @llvm.lifetime.end.p0(i64 1, ptr %22) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %21) #4
  call void @llvm.lifetime.end.p0(i64 16, ptr %20) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %19) #4
  ret i8 %38
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { 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 }

!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, !7, i64 0}
!12 = !{!"EverCrypt_AEAD_state_s_s", !7, i64 0, !6, i64 8}
!13 = !{!12, !6, i64 8}
!14 = !{!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"

%struct.EverCrypt_AEAD_state_s_s = type { i8, ptr }

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

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

; 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) #1

; Function Attrs: nounwind uwtable
declare hidden zeroext i8 @decrypt_chacha20_poly1305(ptr noundef, ptr noundef, i32 noundef, ptr noundef, i32 noundef, ptr noundef, i32 noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local zeroext i8 @EverCrypt_AEAD_decrypt_expand_chacha20_poly1305(ptr nocapture noundef readonly %0, ptr noundef %1, i32 noundef %2, ptr noundef %3, i32 noundef %4, ptr noundef %5, i32 noundef %6, ptr noundef %7, ptr noundef %8) local_unnamed_addr #2 {
  %10 = alloca [32 x i8], align 16
  %11 = alloca %struct.EverCrypt_AEAD_state_s_s, align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %10) #3
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %11) #3
  store i8 0, ptr %11, align 8, !tbaa !5
  %12 = getelementptr inbounds i8, ptr %11, i64 8
  store ptr %10, ptr %12, align 8, !tbaa !10
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 16 dereferenceable(32) %10, ptr noundef nonnull align 1 dereferenceable(32) %0, i64 32, i1 false)
  %13 = call zeroext i8 @decrypt_chacha20_poly1305(ptr noundef nonnull %11, ptr noundef %1, i32 noundef %2, ptr noundef %3, i32 noundef %4, ptr noundef %5, i32 noundef %6, ptr noundef %7, ptr noundef %8)
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %11) #3
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %10) #3
  ret i8 %13
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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, !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 = !{!6, !9, i64 8}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,MemCpyOptPass,PostOrderFunctionAttrsPass,SROAPass