; LLVM IR from guanzhi/GmSSL :: src (sm2_enc)

; 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.SM2_DEC_CTX = type { [366 x i8], i64 }

@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_decrypt_finish = external hidden unnamed_addr constant [19 x i8], align 1

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

; Function Attrs: nounwind uwtable
declare dso_local i32 @sm2_decrypt(ptr noundef, ptr noundef, i64 noundef, ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @sm2_decrypt_finish(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) #1 {
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store ptr %2, ptr %8, align 8, !tbaa !5
  store ptr %3, ptr %9, align 8, !tbaa !5
  %10 = load ptr, ptr %6, align 8, !tbaa !5
  %11 = icmp ne ptr %10, null
  br i1 %11, label %12, label %18

12:                                               ; preds = %4
  %13 = load ptr, ptr %7, align 8, !tbaa !5
  %14 = icmp ne ptr %13, null
  br i1 %14, label %15, label %18

15:                                               ; preds = %12
  %16 = load ptr, ptr %9, align 8, !tbaa !5
  %17 = icmp ne ptr %16, null
  br i1 %17, label %23, label %18

18:                                               ; preds = %15, %12, %4
  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 675, ptr noundef @__FUNCTION__.sm2_decrypt_finish) #2
  br label %22

22:                                               ; preds = %19
  store i32 -1, ptr %5, align 4
  br label %66

23:                                               ; preds = %15
  %24 = load ptr, ptr %6, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.SM2_DEC_CTX, ptr %24, i32 0, i32 1
  %26 = load i64, ptr %25, align 8, !tbaa !9
  %27 = icmp ugt i64 %26, 366
  br i1 %27, label %28, label %33

28:                                               ; preds = %23
  br label %29

29:                                               ; preds = %28
  %30 = load ptr, ptr @stderr, align 8, !tbaa !5
  %31 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %30, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 680, ptr noundef @__FUNCTION__.sm2_decrypt_finish) #2
  br label %32

32:                                               ; preds = %29
  store i32 -1, ptr %5, align 4
  br label %66

33:                                               ; preds = %23
  %34 = load ptr, ptr %6, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct.SM2_DEC_CTX, ptr %34, i32 0, i32 1
  %36 = load i64, ptr %35, align 8, !tbaa !9
  %37 = icmp ult i64 %36, 45
  br i1 %37, label %38, label %43

38:                                               ; preds = %33
  br label %39

39:                                               ; preds = %38
  %40 = load ptr, ptr @stderr, align 8, !tbaa !5
  %41 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %40, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 684, ptr noundef @__FUNCTION__.sm2_decrypt_finish) #2
  br label %42

42:                                               ; preds = %39
  store i32 -1, ptr %5, align 4
  br label %66

43:                                               ; preds = %33
  %44 = load ptr, ptr %8, align 8, !tbaa !5
  %45 = icmp ne ptr %44, null
  br i1 %45, label %48, label %46

46:                                               ; preds = %43
  %47 = load ptr, ptr %9, align 8, !tbaa !5
  store i64 255, ptr %47, align 8, !tbaa !12
  store i32 1, ptr %5, align 4
  br label %66

48:                                               ; preds = %43
  %49 = load ptr, ptr %7, align 8, !tbaa !5
  %50 = load ptr, ptr %6, align 8, !tbaa !5
  %51 = getelementptr inbounds %struct.SM2_DEC_CTX, ptr %50, i32 0, i32 0
  %52 = getelementptr inbounds [366 x i8], ptr %51, i64 0, i64 0
  %53 = load ptr, ptr %6, align 8, !tbaa !5
  %54 = getelementptr inbounds %struct.SM2_DEC_CTX, ptr %53, i32 0, i32 1
  %55 = load i64, ptr %54, align 8, !tbaa !9
  %56 = load ptr, ptr %8, align 8, !tbaa !5
  %57 = load ptr, ptr %9, align 8, !tbaa !5
  %58 = call i32 @sm2_decrypt(ptr noundef %49, ptr noundef %52, i64 noundef %55, ptr noundef %56, ptr noundef %57)
  %59 = icmp ne i32 %58, 1
  br i1 %59, label %60, label %65

60:                                               ; preds = %48
  br label %61

61:                                               ; preds = %60
  %62 = load ptr, ptr @stderr, align 8, !tbaa !5
  %63 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %62, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 694, ptr noundef @__FUNCTION__.sm2_decrypt_finish) #2
  br label %64

64:                                               ; preds = %61
  store i32 -1, ptr %5, align 4
  br label %66

65:                                               ; preds = %48
  store i32 1, ptr %5, align 4
  br label %66

66:                                               ; preds = %65, %64, %46, %42, %32, %22
  %67 = load i32, ptr %5, align 4
  ret i32 %67
}

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 = { 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 = { 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, !11, i64 368}
!10 = !{!"", !7, i64 0, !11, i64 368}
!11 = !{!"long", !7, i64 0}
!12 = !{!11, !11, 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_decrypt_finish = external hidden unnamed_addr constant [19 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: nounwind uwtable
declare dso_local i32 @sm2_decrypt(ptr noundef, ptr noundef, i64 noundef, ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 2) i32 @sm2_decrypt_finish(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) local_unnamed_addr #1 {
  %5 = icmp ne ptr %0, null
  %6 = icmp ne ptr %1, null
  %or.cond = and i1 %5, %6
  %7 = icmp ne ptr %3, null
  %or.cond3 = and i1 %or.cond, %7
  br i1 %or.cond3, label %11, label %8

8:                                                ; preds = %4
  %9 = load ptr, ptr @stderr, align 8, !tbaa !5
  %10 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %9, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 675, ptr noundef nonnull @__FUNCTION__.sm2_decrypt_finish) #2
  br label %30

11:                                               ; preds = %4
  %12 = getelementptr inbounds i8, ptr %0, i64 368
  %13 = load i64, ptr %12, align 8, !tbaa !9
  %14 = icmp ugt i64 %13, 366
  br i1 %14, label %15, label %18

15:                                               ; preds = %11
  %16 = load ptr, ptr @stderr, align 8, !tbaa !5
  %17 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %16, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 680, ptr noundef nonnull @__FUNCTION__.sm2_decrypt_finish) #2
  br label %30

18:                                               ; preds = %11
  %19 = icmp ult i64 %13, 45
  br i1 %19, label %20, label %23

20:                                               ; preds = %18
  %21 = load ptr, ptr @stderr, align 8, !tbaa !5
  %22 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %21, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 684, ptr noundef nonnull @__FUNCTION__.sm2_decrypt_finish) #2
  br label %30

23:                                               ; preds = %18
  %.not = icmp eq ptr %2, null
  br i1 %.not, label %24, label %25

24:                                               ; preds = %23
  store i64 255, ptr %3, align 8, !tbaa !12
  br label %30

25:                                               ; preds = %23
  %26 = tail call i32 @sm2_decrypt(ptr noundef nonnull %1, ptr noundef nonnull %0, i64 noundef %13, ptr noundef nonnull %2, ptr noundef nonnull %3)
  %.not20 = icmp eq i32 %26, 1
  br i1 %.not20, label %30, label %27

27:                                               ; preds = %25
  %28 = load ptr, ptr @stderr, align 8, !tbaa !5
  %29 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %28, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 694, ptr noundef nonnull @__FUNCTION__.sm2_decrypt_finish) #2
  br label %30

30:                                               ; preds = %25, %27, %24, %20, %15, %8
  %.0 = phi i32 [ -1, %15 ], [ -1, %20 ], [ -1, %27 ], [ 1, %24 ], [ -1, %8 ], [ 1, %25 ]
  ret i32 %.0
}

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 = { 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 = { 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, !11, i64 368}
!10 = !{!"", !7, i64 0, !11, i64 368}
!11 = !{!"long", !7, i64 0}
!12 = !{!11, !11, i64 0}


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