; LLVM IR from guanzhi/GmSSL :: src (sm9_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"

%struct.SM9_Z256_POINT = type { [4 x i64], [4 x i64], [4 x i64] }

@SM9_Z256_P = external dso_local constant [4 x i64], align 16
@SM9_Z256_MODP_MONT_ONE = external dso_local constant [4 x i64], align 16
@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__.sm9_z256_point_from_uncompressed_octets = external hidden unnamed_addr constant [40 x i8], align 1

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

; Function Attrs: nounwind uwtable
declare dso_local i32 @sm9_z256_cmp(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local void @sm9_z256_from_bytes(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local void @sm9_z256_copy(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local void @sm9_z256_modp_to_mont(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @sm9_z256_point_is_on_curve(ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @sm9_z256_point_from_uncompressed_octets(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %6 = load ptr, ptr %5, align 8, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %6, i64 0
  %8 = load i8, ptr %7, align 1, !tbaa !9
  %9 = zext i8 %8 to i32
  %10 = icmp ne i32 %9, 4
  br i1 %10, label %11, label %16

11:                                               ; preds = %2
  br label %12

12:                                               ; preds = %11
  %13 = load ptr, ptr @stderr, align 8, !tbaa !5
  %14 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %13, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 3140, ptr noundef @__FUNCTION__.sm9_z256_point_from_uncompressed_octets) #2
  br label %15

15:                                               ; preds = %12
  store i32 -1, ptr %3, align 4
  br label %74

16:                                               ; preds = %2
  %17 = load ptr, ptr %4, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.SM9_Z256_POINT, ptr %17, i32 0, i32 0
  %19 = getelementptr inbounds [4 x i64], ptr %18, i64 0, i64 0
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = getelementptr inbounds i8, ptr %20, i64 1
  call void @sm9_z256_from_bytes(ptr noundef %19, ptr noundef %21)
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.SM9_Z256_POINT, ptr %22, i32 0, i32 0
  %24 = getelementptr inbounds [4 x i64], ptr %23, i64 0, i64 0
  %25 = call i32 @sm9_z256_cmp(ptr noundef %24, ptr noundef @SM9_Z256_P)
  %26 = icmp sge i32 %25, 0
  br i1 %26, label %27, label %32

27:                                               ; preds = %16
  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 3146, ptr noundef @__FUNCTION__.sm9_z256_point_from_uncompressed_octets) #2
  br label %31

31:                                               ; preds = %28
  store i32 -1, ptr %3, align 4
  br label %74

32:                                               ; preds = %16
  %33 = load ptr, ptr %4, align 8, !tbaa !5
  %34 = getelementptr inbounds %struct.SM9_Z256_POINT, ptr %33, i32 0, i32 0
  %35 = getelementptr inbounds [4 x i64], ptr %34, i64 0, i64 0
  %36 = load ptr, ptr %4, align 8, !tbaa !5
  %37 = getelementptr inbounds %struct.SM9_Z256_POINT, ptr %36, i32 0, i32 0
  %38 = getelementptr inbounds [4 x i64], ptr %37, i64 0, i64 0
  call void @sm9_z256_modp_to_mont(ptr noundef %35, ptr noundef %38)
  %39 = load ptr, ptr %4, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.SM9_Z256_POINT, ptr %39, i32 0, i32 1
  %41 = getelementptr inbounds [4 x i64], ptr %40, i64 0, i64 0
  %42 = load ptr, ptr %5, align 8, !tbaa !5
  %43 = getelementptr inbounds i8, ptr %42, i64 32
  %44 = getelementptr inbounds i8, ptr %43, i64 1
  call void @sm9_z256_from_bytes(ptr noundef %41, ptr noundef %44)
  %45 = load ptr, ptr %4, align 8, !tbaa !5
  %46 = getelementptr inbounds %struct.SM9_Z256_POINT, ptr %45, i32 0, i32 1
  %47 = getelementptr inbounds [4 x i64], ptr %46, i64 0, i64 0
  %48 = call i32 @sm9_z256_cmp(ptr noundef %47, ptr noundef @SM9_Z256_P)
  %49 = icmp sge i32 %48, 0
  br i1 %49, label %50, label %55

50:                                               ; preds = %32
  br label %51

51:                                               ; preds = %50
  %52 = load ptr, ptr @stderr, align 8, !tbaa !5
  %53 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %52, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 3153, ptr noundef @__FUNCTION__.sm9_z256_point_from_uncompressed_octets) #2
  br label %54

54:                                               ; preds = %51
  store i32 -1, ptr %3, align 4
  br label %74

55:                                               ; preds = %32
  %56 = load ptr, ptr %4, align 8, !tbaa !5
  %57 = getelementptr inbounds %struct.SM9_Z256_POINT, ptr %56, i32 0, i32 1
  %58 = getelementptr inbounds [4 x i64], ptr %57, i64 0, i64 0
  %59 = load ptr, ptr %4, align 8, !tbaa !5
  %60 = getelementptr inbounds %struct.SM9_Z256_POINT, ptr %59, i32 0, i32 1
  %61 = getelementptr inbounds [4 x i64], ptr %60, i64 0, i64 0
  call void @sm9_z256_modp_to_mont(ptr noundef %58, ptr noundef %61)
  %62 = load ptr, ptr %4, align 8, !tbaa !5
  %63 = getelementptr inbounds %struct.SM9_Z256_POINT, ptr %62, i32 0, i32 2
  %64 = getelementptr inbounds [4 x i64], ptr %63, i64 0, i64 0
  call void @sm9_z256_copy(ptr noundef %64, ptr noundef @SM9_Z256_MODP_MONT_ONE)
  %65 = load ptr, ptr %4, align 8, !tbaa !5
  %66 = call i32 @sm9_z256_point_is_on_curve(ptr noundef %65)
  %67 = icmp ne i32 %66, 0
  br i1 %67, label %73, label %68

68:                                               ; preds = %55
  br label %69

69:                                               ; preds = %68
  %70 = load ptr, ptr @stderr, align 8, !tbaa !5
  %71 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %70, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 3161, ptr noundef @__FUNCTION__.sm9_z256_point_from_uncompressed_octets) #2
  br label %72

72:                                               ; preds = %69
  store i32 -1, ptr %3, align 4
  br label %74

73:                                               ; preds = %55
  store i32 1, ptr %3, align 4
  br label %74

74:                                               ; preds = %73, %72, %54, %31, %15
  %75 = load i32, ptr %3, align 4
  ret i32 %75
}

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 = !{!7, !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"

@SM9_Z256_P = external dso_local constant [4 x i64], align 16
@SM9_Z256_MODP_MONT_ONE = external dso_local constant [4 x i64], align 16
@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__.sm9_z256_point_from_uncompressed_octets = external hidden unnamed_addr constant [40 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 @sm9_z256_cmp(ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local void @sm9_z256_from_bytes(ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local void @sm9_z256_copy(ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local void @sm9_z256_modp_to_mont(ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @sm9_z256_point_is_on_curve(ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 2) i32 @sm9_z256_point_from_uncompressed_octets(ptr noundef %0, ptr noundef %1) local_unnamed_addr #1 {
  %3 = load i8, ptr %1, align 1, !tbaa !5
  %.not = icmp eq i8 %3, 4
  br i1 %.not, label %4, label %.sink.split

4:                                                ; preds = %2
  %5 = getelementptr inbounds i8, ptr %1, i64 1
  tail call void @sm9_z256_from_bytes(ptr noundef %0, ptr noundef nonnull %5)
  %6 = tail call i32 @sm9_z256_cmp(ptr noundef %0, ptr noundef nonnull @SM9_Z256_P)
  %7 = icmp sgt i32 %6, -1
  br i1 %7, label %.sink.split, label %8

8:                                                ; preds = %4
  tail call void @sm9_z256_modp_to_mont(ptr noundef %0, ptr noundef %0)
  %9 = getelementptr inbounds i8, ptr %0, i64 32
  %10 = getelementptr inbounds i8, ptr %1, i64 33
  tail call void @sm9_z256_from_bytes(ptr noundef nonnull %9, ptr noundef nonnull %10)
  %11 = tail call i32 @sm9_z256_cmp(ptr noundef nonnull %9, ptr noundef nonnull @SM9_Z256_P)
  %12 = icmp sgt i32 %11, -1
  br i1 %12, label %.sink.split, label %13

13:                                               ; preds = %8
  tail call void @sm9_z256_modp_to_mont(ptr noundef nonnull %9, ptr noundef nonnull %9)
  %14 = getelementptr inbounds i8, ptr %0, i64 64
  tail call void @sm9_z256_copy(ptr noundef nonnull %14, ptr noundef nonnull @SM9_Z256_MODP_MONT_ONE)
  %15 = tail call i32 @sm9_z256_point_is_on_curve(ptr noundef %0)
  %.not13 = icmp eq i32 %15, 0
  br i1 %.not13, label %.sink.split, label %18

.sink.split:                                      ; preds = %13, %8, %4, %2
  %.sink14 = phi i32 [ 3140, %2 ], [ 3146, %4 ], [ 3153, %8 ], [ 3161, %13 ]
  %16 = load ptr, ptr @stderr, align 8, !tbaa !8
  %17 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %16, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef %.sink14, ptr noundef nonnull @__FUNCTION__.sm9_z256_point_from_uncompressed_octets) #2
  br label %18

18:                                               ; preds = %.sink.split, %13
  %.0 = phi i32 [ 1, %13 ], [ -1, %.sink.split ]
  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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"any pointer", !6, i64 0}


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