; LLVM IR from guanzhi/GmSSL :: src (sm2_key)

; 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 [61 x i8], align 1
@__FUNCTION__.sm2_private_key_info_to_pem = external hidden unnamed_addr constant [28 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [12 x i8], align 1

; Function Attrs: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

declare void @gmssl_secure_clear(ptr noundef, i64 noundef) #2

; Function Attrs: nounwind uwtable
declare dso_local i32 @sm2_private_key_info_to_der(ptr noundef, ptr noundef, ptr noundef) #3

; Function Attrs: nounwind uwtable
define dso_local i32 @sm2_private_key_info_to_pem(ptr noundef %0, ptr noundef %1) #3 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca [150 x i8], align 16
  %8 = alloca ptr, align 8
  %9 = alloca i64, align 8
  %10 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  store i32 -1, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 150, ptr %7) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  %11 = getelementptr inbounds [150 x i8], ptr %7, i64 0, i64 0
  store ptr %11, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  store i64 0, ptr %9, align 8, !tbaa !11
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = icmp ne ptr %12, null
  br i1 %13, label %14, label %17

14:                                               ; preds = %2
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = icmp ne ptr %15, null
  br i1 %16, label %23, label %17

17:                                               ; preds = %14, %2
  br label %18

18:                                               ; preds = %17
  %19 = load ptr, ptr @stderr, align 8, !tbaa !5
  %20 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %19, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 367, ptr noundef @__FUNCTION__.sm2_private_key_info_to_pem) #4
  br label %21

21:                                               ; preds = %18
  br label %22

22:                                               ; preds = %21
  store i32 -1, ptr %3, align 4
  store i32 1, ptr %10, align 4
  br label %58

23:                                               ; preds = %14
  %24 = load ptr, ptr %4, align 8, !tbaa !5
  %25 = call i32 @sm2_private_key_info_to_der(ptr noundef %24, ptr noundef %8, ptr noundef %9)
  %26 = icmp ne i32 %25, 1
  br i1 %26, label %27, label %33

27:                                               ; preds = %23
  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, ptr noundef @.str.1, i32 noundef 371, ptr noundef @__FUNCTION__.sm2_private_key_info_to_pem) #4
  br label %31

31:                                               ; preds = %28
  br label %32

32:                                               ; preds = %31
  br label %55

33:                                               ; preds = %23
  %34 = load i64, ptr %9, align 8, !tbaa !11
  %35 = icmp ne i64 %34, 150
  br i1 %35, label %36, label %42

36:                                               ; preds = %33
  br label %37

37:                                               ; preds = %36
  %38 = load ptr, ptr @stderr, align 8, !tbaa !5
  %39 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %38, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 375, ptr noundef @__FUNCTION__.sm2_private_key_info_to_pem) #4
  br label %40

40:                                               ; preds = %37
  br label %41

41:                                               ; preds = %40
  br label %55

42:                                               ; preds = %33
  %43 = load ptr, ptr %5, align 8, !tbaa !5
  %44 = getelementptr inbounds [150 x i8], ptr %7, i64 0, i64 0
  %45 = load i64, ptr %9, align 8, !tbaa !11
  %46 = call i32 @pem_write(ptr noundef %43, ptr noundef @.str.8, ptr noundef %44, i64 noundef %45)
  %47 = icmp ne i32 %46, 1
  br i1 %47, label %48, label %54

48:                                               ; preds = %42
  br label %49

49:                                               ; preds = %48
  %50 = load ptr, ptr @stderr, align 8, !tbaa !5
  %51 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %50, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 379, ptr noundef @__FUNCTION__.sm2_private_key_info_to_pem) #4
  br label %52

52:                                               ; preds = %49
  br label %53

53:                                               ; preds = %52
  br label %55

54:                                               ; preds = %42
  store i32 1, ptr %6, align 4, !tbaa !9
  br label %55

55:                                               ; preds = %54, %53, %41, %32
  %56 = getelementptr inbounds [150 x i8], ptr %7, i64 0, i64 0
  call void @gmssl_secure_clear(ptr noundef %56, i64 noundef 150)
  %57 = load i32, ptr %6, align 4, !tbaa !9
  store i32 %57, ptr %3, align 4
  store i32 1, ptr %10, align 4
  br label %58

58:                                               ; preds = %55, %22
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 150, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  %59 = load i32, ptr %3, align 4
  ret i32 %59
}

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

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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, !12, i64 0}
!12 = !{!"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"

@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 [61 x i8], align 1
@__FUNCTION__.sm2_private_key_info_to_pem = external hidden unnamed_addr constant [28 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [12 x i8], align 1

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

declare void @gmssl_secure_clear(ptr noundef, i64 noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare dso_local i32 @sm2_private_key_info_to_der(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 2) i32 @sm2_private_key_info_to_pem(ptr noundef %0, ptr noundef %1) local_unnamed_addr #3 {
  %3 = alloca [150 x i8], align 16
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 150, ptr nonnull %3) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  store ptr %3, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  store i64 0, ptr %5, align 8, !tbaa !9
  %6 = icmp ne ptr %0, null
  %7 = icmp ne ptr %1, null
  %or.cond = and i1 %6, %7
  br i1 %or.cond, label %11, label %8

8:                                                ; preds = %2
  %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 367, ptr noundef nonnull @__FUNCTION__.sm2_private_key_info_to_pem) #5
  br label %20

11:                                               ; preds = %2
  %12 = call i32 @sm2_private_key_info_to_der(ptr noundef nonnull %0, ptr noundef nonnull %4, ptr noundef nonnull %5)
  %.not = icmp eq i32 %12, 1
  br i1 %.not, label %13, label %.sink.split

13:                                               ; preds = %11
  %14 = load i64, ptr %5, align 8, !tbaa !9
  %.not10 = icmp eq i64 %14, 150
  br i1 %.not10, label %15, label %.sink.split

15:                                               ; preds = %13
  %16 = call i32 @pem_write(ptr noundef nonnull %1, ptr noundef nonnull @.str.8, ptr noundef nonnull %3, i64 noundef 150) #4
  %.not11 = icmp eq i32 %16, 1
  br i1 %.not11, label %19, label %.sink.split

.sink.split:                                      ; preds = %15, %13, %11
  %.sink12 = phi i32 [ 371, %11 ], [ 375, %13 ], [ 379, %15 ]
  %17 = load ptr, ptr @stderr, align 8, !tbaa !5
  %18 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %17, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef %.sink12, ptr noundef nonnull @__FUNCTION__.sm2_private_key_info_to_pem) #5
  br label %19

19:                                               ; preds = %.sink.split, %15
  %.0 = phi i32 [ 1, %15 ], [ -1, %.sink.split ]
  call void @gmssl_secure_clear(ptr noundef nonnull %3, i64 noundef 150) #4
  br label %20

20:                                               ; preds = %19, %8
  %.06 = phi i32 [ %.0, %19 ], [ -1, %8 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 150, ptr nonnull %3) #4
  ret i32 %.06
}

declare i32 @pem_write(ptr noundef, ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #2

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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 }
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"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}


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