; LLVM IR from guanzhi/GmSSL :: src (digest)

; 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.DIGEST_CTX = type { %union.anon, ptr }
%union.anon = type { %struct.SM3_CTX }
%struct.SM3_CTX = type { [8 x i32], i64, [64 x i8], i64 }

@stderr = external global ptr, align 8
@.str.2 = external hidden unnamed_addr constant [13 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [60 x i8], align 1
@__FUNCTION__.digest = external hidden unnamed_addr constant [7 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

; 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 @digest_init(ptr noundef, ptr noundef) #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
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #3

; Function Attrs: nounwind uwtable
declare dso_local i32 @digest_update(ptr noundef, ptr noundef, i64 noundef) #1

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

; Function Attrs: nounwind uwtable
define dso_local i32 @digest(ptr noundef %0, ptr noundef %1, i64 noundef %2, ptr noundef %3, ptr noundef %4) #1 {
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i64, align 8
  %10 = alloca ptr, align 8
  %11 = alloca ptr, align 8
  %12 = alloca %struct.DIGEST_CTX, align 8
  %13 = alloca i32, align 4
  store ptr %0, ptr %7, align 8, !tbaa !5
  store ptr %1, ptr %8, align 8, !tbaa !5
  store i64 %2, ptr %9, align 8, !tbaa !9
  store ptr %3, ptr %10, align 8, !tbaa !5
  store ptr %4, ptr %11, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 120, ptr %12) #4
  %14 = load ptr, ptr %7, align 8, !tbaa !5
  %15 = call i32 @digest_init(ptr noundef %12, ptr noundef %14)
  %16 = icmp ne i32 %15, 1
  br i1 %16, label %27, label %17

17:                                               ; preds = %5
  %18 = load ptr, ptr %8, align 8, !tbaa !5
  %19 = load i64, ptr %9, align 8, !tbaa !9
  %20 = call i32 @digest_update(ptr noundef %12, ptr noundef %18, i64 noundef %19)
  %21 = icmp slt i32 %20, 0
  br i1 %21, label %27, label %22

22:                                               ; preds = %17
  %23 = load ptr, ptr %10, align 8, !tbaa !5
  %24 = load ptr, ptr %11, align 8, !tbaa !5
  %25 = call i32 @digest_finish(ptr noundef %12, ptr noundef %23, ptr noundef %24)
  %26 = icmp ne i32 %25, 1
  br i1 %26, label %27, label %33

27:                                               ; preds = %22, %17, %5
  br label %28

28:                                               ; preds = %27
  %29 = load ptr, ptr @stderr, align 8, !tbaa !5
  %30 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %29, ptr noundef @.str.2, ptr noundef @.str.3, i32 noundef 88, ptr noundef @__FUNCTION__.digest) #4
  br label %31

31:                                               ; preds = %28
  br label %32

32:                                               ; preds = %31
  store i32 -1, ptr %6, align 4
  store i32 1, ptr %13, align 4
  br label %34

33:                                               ; preds = %22
  call void @llvm.memset.p0.i64(ptr align 8 %12, i8 0, i64 120, i1 false)
  store i32 1, ptr %6, align 4
  store i32 1, ptr %13, align 4
  br label %34

34:                                               ; preds = %33, %32
  call void @llvm.lifetime.end.p0(i64 120, ptr %12) #4
  %35 = load i32, ptr %6, align 4
  ret i32 %35
}

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 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { 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 }

!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}


; 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.DIGEST_CTX = type { %union.anon, ptr }
%union.anon = type { %struct.SM3_CTX }
%struct.SM3_CTX = type { [8 x i32], i64, [64 x i8], i64 }

@stderr = external local_unnamed_addr global ptr, align 8
@.str.2 = external hidden unnamed_addr constant [13 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [60 x i8], align 1
@__FUNCTION__.digest = external hidden unnamed_addr constant [7 x i8], align 1

; 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
declare dso_local i32 @digest_init(ptr noundef, ptr noundef) local_unnamed_addr #1

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

; Function Attrs: nounwind uwtable
declare dso_local i32 @digest_update(ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #1

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

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 2) i32 @digest(ptr noundef %0, ptr noundef %1, i64 noundef %2, ptr noundef %3, ptr noundef %4) local_unnamed_addr #1 {
  %6 = alloca %struct.DIGEST_CTX, align 8
  call void @llvm.lifetime.start.p0(i64 120, ptr nonnull %6) #3
  %7 = call i32 @digest_init(ptr noundef nonnull %6, ptr noundef %0)
  %.not = icmp eq i32 %7, 1
  br i1 %.not, label %8, label %13

8:                                                ; preds = %5
  %9 = call i32 @digest_update(ptr noundef nonnull %6, ptr noundef %1, i64 noundef %2)
  %10 = icmp slt i32 %9, 0
  br i1 %10, label %13, label %11

11:                                               ; preds = %8
  %12 = call i32 @digest_finish(ptr noundef nonnull %6, ptr noundef %3, ptr noundef %4)
  %.not5 = icmp eq i32 %12, 1
  br i1 %.not5, label %16, label %13

13:                                               ; preds = %5, %8, %11
  %14 = load ptr, ptr @stderr, align 8, !tbaa !5
  %15 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %14, ptr noundef nonnull @.str.2, ptr noundef nonnull @.str.3, i32 noundef 88, ptr noundef nonnull @__FUNCTION__.digest) #4
  br label %16

16:                                               ; preds = %11, %13
  %.0 = phi i32 [ -1, %13 ], [ 1, %11 ]
  call void @llvm.lifetime.end.p0(i64 120, ptr nonnull %6) #3
  ret i32 %.0
}

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 = { 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 #3 = { nounwind }
attributes #4 = { cold 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"}


; Effective O3 passes: DSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,SimplifyCFGPass