; LLVM IR from gost-engine/engine :: gost_crypt (gost_magma_encrypt_wrap)

; 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.ossl_gost_cipher_ctx = type { i32, i32, i32, [8 x i8], [8 x i8], %struct.gost_ctx, ptr }
%struct.gost_ctx = type { [8 x i32], [8 x i32], [8 x i32], [256 x i32], [256 x i32], [256 x i32], [256 x i32] }

; 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
define dso_local void @gost_magma_encrypt_wrap(ptr noundef %0, ptr noundef %1, ptr noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca [8 x i8], align 1
  %9 = alloca [8 x i8], align 1
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  store i32 0, ptr %7, align 4, !tbaa !9
  br label %10

10:                                               ; preds = %23, %3
  %11 = load i32, ptr %7, align 4, !tbaa !9
  %12 = icmp slt i32 %11, 8
  br i1 %12, label %13, label %26

13:                                               ; preds = %10
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = load i32, ptr %7, align 4, !tbaa !9
  %16 = sext i32 %15 to i64
  %17 = getelementptr inbounds i8, ptr %14, i64 %16
  %18 = load i8, ptr %17, align 1, !tbaa !11
  %19 = load i32, ptr %7, align 4, !tbaa !9
  %20 = sub nsw i32 7, %19
  %21 = sext i32 %20 to i64
  %22 = getelementptr inbounds [8 x i8], ptr %8, i64 0, i64 %21
  store i8 %18, ptr %22, align 1, !tbaa !11
  br label %23

23:                                               ; preds = %13
  %24 = load i32, ptr %7, align 4, !tbaa !9
  %25 = add nsw i32 %24, 1
  store i32 %25, ptr %7, align 4, !tbaa !9
  br label %10, !llvm.loop !12

26:                                               ; preds = %10
  %27 = load ptr, ptr %6, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.ossl_gost_cipher_ctx, ptr %27, i32 0, i32 5
  %29 = getelementptr inbounds [8 x i8], ptr %8, i64 0, i64 0
  %30 = getelementptr inbounds [8 x i8], ptr %9, i64 0, i64 0
  call void @gostcrypt(ptr noundef %28, ptr noundef %29, ptr noundef %30)
  store i32 0, ptr %7, align 4, !tbaa !9
  br label %31

31:                                               ; preds = %44, %26
  %32 = load i32, ptr %7, align 4, !tbaa !9
  %33 = icmp slt i32 %32, 8
  br i1 %33, label %34, label %47

34:                                               ; preds = %31
  %35 = load i32, ptr %7, align 4, !tbaa !9
  %36 = sext i32 %35 to i64
  %37 = getelementptr inbounds [8 x i8], ptr %9, i64 0, i64 %36
  %38 = load i8, ptr %37, align 1, !tbaa !11
  %39 = load ptr, ptr %5, align 8, !tbaa !5
  %40 = load i32, ptr %7, align 4, !tbaa !9
  %41 = sub nsw i32 7, %40
  %42 = sext i32 %41 to i64
  %43 = getelementptr inbounds i8, ptr %39, i64 %42
  store i8 %38, ptr %43, align 1, !tbaa !11
  br label %44

44:                                               ; preds = %34
  %45 = load i32, ptr %7, align 4, !tbaa !9
  %46 = add nsw i32 %45, 1
  store i32 %46, ptr %7, align 4, !tbaa !9
  br label %31, !llvm.loop !14

47:                                               ; preds = %31
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  ret void
}

declare void @gostcrypt(ptr noundef, ptr noundef, ptr 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 = !{!"int", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = distinct !{!14, !13}


; 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: 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: nounwind uwtable
define dso_local void @gost_magma_encrypt_wrap(ptr nocapture noundef readonly %0, ptr nocapture noundef writeonly %1, ptr noundef %2) local_unnamed_addr #1 {
  %4 = alloca [8 x i8], align 8
  %5 = alloca [8 x i8], align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #3
  %6 = load <8 x i8>, ptr %0, align 1, !tbaa !5
  %7 = shufflevector <8 x i8> %6, <8 x i8> poison, <8 x i32> <i32 7, i32 6, i32 5, i32 4, i32 3, i32 2, i32 1, i32 0>
  store <8 x i8> %7, ptr %4, align 8, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %2, i64 28
  call void @gostcrypt(ptr noundef nonnull %8, ptr noundef nonnull %4, ptr noundef nonnull %5) #3
  %9 = load <8 x i8>, ptr %5, align 8, !tbaa !5
  %10 = shufflevector <8 x i8> %9, <8 x i8> poison, <8 x i32> <i32 7, i32 6, i32 5, i32 4, i32 3, i32 2, i32 1, i32 0>
  store <8 x i8> %10, ptr %1, align 1, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  ret void
}

declare void @gostcrypt(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

attributes #0 = { mustprogress 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,PostOrderFunctionAttrsPass,SLPVectorizerPass,SROAPass,SimplifyCFGPass