; LLVM IR from guanzhi/GmSSL :: src (sm2_z256)

; 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"

@stderr = external global ptr, align 8
@.str = external hidden unnamed_addr constant [13 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [62 x i8], align 1
@__FUNCTION__.sm2_z256_point_to_der = external hidden unnamed_addr constant [22 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: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #1

; 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 @sm2_z256_point_to_uncompressed_octets(ptr noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local i32 @sm2_z256_point_to_der(ptr noundef %0, ptr noundef %1, ptr noundef %2) #2 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca [65 x i8], align 16
  %9 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 65, ptr %8) #4
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  %11 = icmp ne ptr %10, null
  br i1 %11, label %13, label %12

12:                                               ; preds = %3
  store i32 0, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %37

13:                                               ; preds = %3
  %14 = load ptr, ptr %5, align 8, !tbaa !5
  %15 = getelementptr inbounds [65 x i8], ptr %8, i64 0, i64 0
  %16 = call i32 @sm2_z256_point_to_uncompressed_octets(ptr noundef %14, ptr noundef %15)
  %17 = icmp ne i32 %16, 1
  br i1 %17, label %18, label %24

18:                                               ; preds = %13
  br label %19

19:                                               ; preds = %18
  %20 = load ptr, ptr @stderr, align 8, !tbaa !5
  %21 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %20, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 1941, ptr noundef @__FUNCTION__.sm2_z256_point_to_der) #4
  br label %22

22:                                               ; preds = %19
  br label %23

23:                                               ; preds = %22
  store i32 -1, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %37

24:                                               ; preds = %13
  %25 = getelementptr inbounds [65 x i8], ptr %8, i64 0, i64 0
  %26 = load ptr, ptr %6, align 8, !tbaa !5
  %27 = load ptr, ptr %7, align 8, !tbaa !5
  %28 = call i32 @asn1_type_to_der(i32 noundef 4, ptr noundef %25, i64 noundef 65, ptr noundef %26, ptr noundef %27)
  %29 = icmp ne i32 %28, 1
  br i1 %29, label %30, label %36

30:                                               ; preds = %24
  br label %31

31:                                               ; preds = %30
  %32 = load ptr, ptr @stderr, align 8, !tbaa !5
  %33 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %32, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 1945, ptr noundef @__FUNCTION__.sm2_z256_point_to_der) #4
  br label %34

34:                                               ; preds = %31
  br label %35

35:                                               ; preds = %34
  store i32 -1, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %37

36:                                               ; preds = %24
  store i32 1, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %37

37:                                               ; preds = %36, %35, %23, %12
  call void @llvm.lifetime.end.p0(i64 65, ptr %8) #4
  %38 = load i32, ptr %4, align 4
  ret i32 %38
}

declare i32 @asn1_type_to_der(i32 noundef, ptr noundef, i64 noundef, ptr noundef, ptr noundef) #3

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


; 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 [13 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [62 x i8], align 1
@__FUNCTION__.sm2_z256_point_to_der = external hidden unnamed_addr constant [22 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: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; 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 @sm2_z256_point_to_uncompressed_octets(ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 2) i32 @sm2_z256_point_to_der(ptr noundef %0, ptr noundef %1, ptr noundef %2) local_unnamed_addr #2 {
  %4 = alloca [65 x i8], align 16
  call void @llvm.lifetime.start.p0(i64 65, ptr nonnull %4) #4
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %11, label %5

5:                                                ; preds = %3
  %6 = call i32 @sm2_z256_point_to_uncompressed_octets(ptr noundef nonnull %0, ptr noundef nonnull %4)
  %.not5 = icmp eq i32 %6, 1
  br i1 %.not5, label %7, label %.sink.split

7:                                                ; preds = %5
  %8 = call i32 @asn1_type_to_der(i32 noundef 4, ptr noundef nonnull %4, i64 noundef 65, ptr noundef %1, ptr noundef %2) #4
  %.not6 = icmp eq i32 %8, 1
  br i1 %.not6, label %11, label %.sink.split

.sink.split:                                      ; preds = %7, %5
  %.sink7 = phi i32 [ 1941, %5 ], [ 1945, %7 ]
  %9 = load ptr, ptr @stderr, align 8, !tbaa !5
  %10 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %9, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef %.sink7, ptr noundef nonnull @__FUNCTION__.sm2_z256_point_to_der) #5
  br label %11

11:                                               ; preds = %.sink.split, %7, %3
  %.0 = phi i32 [ 0, %3 ], [ 1, %7 ], [ -1, %.sink.split ]
  call void @llvm.lifetime.end.p0(i64 65, ptr nonnull %4) #4
  ret i32 %.0
}

declare i32 @asn1_type_to_der(i32 noundef, ptr noundef, i64 noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 = { "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 = { 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: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,SimplifyCFGPass