; 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"

%struct.SM2_Z256_POINT = type { [4 x i64], [4 x i64], [4 x 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 [62 x i8], align 1
@__FUNCTION__.sm2_z256_point_is_at_infinity = external hidden unnamed_addr constant [30 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: nounwind uwtable
declare dso_local i32 @sm2_z256_cmp(ptr noundef, ptr noundef) #2

; 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 i64 @sm2_z256_is_zero(ptr noundef) #2

; Function Attrs: nounwind uwtable
declare dso_local void @sm2_z256_modp_mont_mul(ptr noundef, ptr noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
declare dso_local void @sm2_z256_modp_mont_sqr(ptr noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local i32 @sm2_z256_point_is_at_infinity(ptr noundef %0) #2 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  %4 = alloca [4 x i64], align 16
  %5 = alloca [4 x i64], align 16
  %6 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.SM2_Z256_POINT, ptr %7, i32 0, i32 2
  %9 = getelementptr inbounds [4 x i64], ptr %8, i64 0, i64 0
  %10 = call i64 @sm2_z256_is_zero(ptr noundef %9)
  %11 = icmp ne i64 %10, 0
  br i1 %11, label %12, label %38

12:                                               ; preds = %1
  call void @llvm.lifetime.start.p0(i64 32, ptr %4) #3
  call void @llvm.lifetime.start.p0(i64 32, ptr %5) #3
  %13 = getelementptr inbounds [4 x i64], ptr %4, i64 0, i64 0
  %14 = load ptr, ptr %3, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.SM2_Z256_POINT, ptr %14, i32 0, i32 0
  %16 = getelementptr inbounds [4 x i64], ptr %15, i64 0, i64 0
  call void @sm2_z256_modp_mont_sqr(ptr noundef %13, ptr noundef %16)
  %17 = getelementptr inbounds [4 x i64], ptr %4, i64 0, i64 0
  %18 = getelementptr inbounds [4 x i64], ptr %4, i64 0, i64 0
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.SM2_Z256_POINT, ptr %19, i32 0, i32 0
  %21 = getelementptr inbounds [4 x i64], ptr %20, i64 0, i64 0
  call void @sm2_z256_modp_mont_mul(ptr noundef %17, ptr noundef %18, ptr noundef %21)
  %22 = getelementptr inbounds [4 x i64], ptr %5, i64 0, i64 0
  %23 = load ptr, ptr %3, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.SM2_Z256_POINT, ptr %23, i32 0, i32 1
  %25 = getelementptr inbounds [4 x i64], ptr %24, i64 0, i64 0
  call void @sm2_z256_modp_mont_sqr(ptr noundef %22, ptr noundef %25)
  %26 = getelementptr inbounds [4 x i64], ptr %4, i64 0, i64 0
  %27 = getelementptr inbounds [4 x i64], ptr %5, i64 0, i64 0
  %28 = call i32 @sm2_z256_cmp(ptr noundef %26, ptr noundef %27)
  %29 = icmp ne i32 %28, 0
  br i1 %29, label %30, label %36

30:                                               ; preds = %12
  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 1064, ptr noundef @__FUNCTION__.sm2_z256_point_is_at_infinity) #3
  br label %34

34:                                               ; preds = %31
  br label %35

35:                                               ; preds = %34
  store i32 0, ptr %2, align 4
  store i32 1, ptr %6, align 4
  br label %37

36:                                               ; preds = %12
  store i32 1, ptr %2, align 4
  store i32 1, ptr %6, align 4
  br label %37

37:                                               ; preds = %36, %35
  call void @llvm.lifetime.end.p0(i64 32, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 32, ptr %4) #3
  br label %39

38:                                               ; preds = %1
  store i32 0, ptr %2, align 4
  br label %39

39:                                               ; preds = %38, %37
  %40 = load i32, ptr %2, align 4
  ret i32 %40
}

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 = { 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_is_at_infinity = external hidden unnamed_addr constant [30 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: nounwind uwtable
declare dso_local i32 @sm2_z256_cmp(ptr noundef, ptr noundef) local_unnamed_addr #2

; 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 i64 @sm2_z256_is_zero(ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare dso_local void @sm2_z256_modp_mont_mul(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare dso_local void @sm2_z256_modp_mont_sqr(ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 2) i32 @sm2_z256_point_is_at_infinity(ptr noundef %0) local_unnamed_addr #2 {
  %2 = alloca [4 x i64], align 16
  %3 = alloca [4 x i64], align 16
  %4 = getelementptr inbounds i8, ptr %0, i64 64
  %5 = tail call i64 @sm2_z256_is_zero(ptr noundef nonnull %4)
  %.not = icmp eq i64 %5, 0
  br i1 %.not, label %13, label %6

6:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %2) #3
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %3) #3
  call void @sm2_z256_modp_mont_sqr(ptr noundef nonnull %2, ptr noundef %0)
  call void @sm2_z256_modp_mont_mul(ptr noundef nonnull %2, ptr noundef nonnull %2, ptr noundef %0)
  %7 = getelementptr inbounds i8, ptr %0, i64 32
  call void @sm2_z256_modp_mont_sqr(ptr noundef nonnull %3, ptr noundef nonnull %7)
  %8 = call i32 @sm2_z256_cmp(ptr noundef nonnull %2, ptr noundef nonnull %3)
  %.not4 = icmp eq i32 %8, 0
  br i1 %.not4, label %12, label %9

9:                                                ; preds = %6
  %10 = load ptr, ptr @stderr, align 8, !tbaa !5
  %11 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %10, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 1064, ptr noundef nonnull @__FUNCTION__.sm2_z256_point_is_at_infinity) #4
  br label %12

12:                                               ; preds = %6, %9
  %.0 = phi i32 [ 0, %9 ], [ 1, %6 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #3
  br label %13

13:                                               ; preds = %1, %12
  %.1 = phi i32 [ %.0, %12 ], [ 0, %1 ]
  ret i32 %.1
}

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 = { 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: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,SimplifyCFGPass,TailCallElimPass