; LLVM IR from guanzhi/GmSSL :: src (x509_ext)

; 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__.x509_exts_get_ext_by_oid = external hidden unnamed_addr constant [25 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 @x509_ext_from_der(ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local i32 @x509_exts_get_ext_by_oid(ptr noundef %0, i64 noundef %1, i32 noundef %2, ptr noundef %3, ptr noundef %4, ptr noundef %5) #2 {
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca i64, align 8
  %10 = alloca i32, align 4
  %11 = alloca ptr, align 8
  %12 = alloca ptr, align 8
  %13 = alloca ptr, align 8
  %14 = alloca i32, align 4
  %15 = alloca [32 x i32], align 16
  %16 = alloca i64, align 8
  %17 = alloca i32, align 4
  store ptr %0, ptr %8, align 8, !tbaa !5
  store i64 %1, ptr %9, align 8, !tbaa !9
  store i32 %2, ptr %10, align 4, !tbaa !11
  store ptr %3, ptr %11, align 8, !tbaa !5
  store ptr %4, ptr %12, align 8, !tbaa !5
  store ptr %5, ptr %13, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #3
  call void @llvm.lifetime.start.p0(i64 128, ptr %15) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #3
  br label %18

18:                                               ; preds = %39, %6
  %19 = load i64, ptr %9, align 8, !tbaa !9
  %20 = icmp ne i64 %19, 0
  br i1 %20, label %21, label %40

21:                                               ; preds = %18
  %22 = getelementptr inbounds [32 x i32], ptr %15, i64 0, i64 0
  %23 = load ptr, ptr %11, align 8, !tbaa !5
  %24 = load ptr, ptr %12, align 8, !tbaa !5
  %25 = load ptr, ptr %13, align 8, !tbaa !5
  %26 = call i32 @x509_ext_from_der(ptr noundef %14, ptr noundef %22, ptr noundef %16, ptr noundef %23, ptr noundef %24, ptr noundef %25, ptr noundef %8, ptr noundef %9)
  %27 = icmp ne i32 %26, 1
  br i1 %27, label %28, label %34

28:                                               ; preds = %21
  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 673, ptr noundef @__FUNCTION__.x509_exts_get_ext_by_oid) #3
  br label %32

32:                                               ; preds = %29
  br label %33

33:                                               ; preds = %32
  store i32 -1, ptr %7, align 4
  store i32 1, ptr %17, align 4
  br label %44

34:                                               ; preds = %21
  %35 = load i32, ptr %14, align 4, !tbaa !11
  %36 = load i32, ptr %10, align 4, !tbaa !11
  %37 = icmp eq i32 %35, %36
  br i1 %37, label %38, label %39

38:                                               ; preds = %34
  store i32 1, ptr %7, align 4
  store i32 1, ptr %17, align 4
  br label %44

39:                                               ; preds = %34
  br label %18, !llvm.loop !13

40:                                               ; preds = %18
  %41 = load ptr, ptr %11, align 8, !tbaa !5
  store i32 -1, ptr %41, align 4, !tbaa !11
  %42 = load ptr, ptr %12, align 8, !tbaa !5
  store ptr null, ptr %42, align 8, !tbaa !5
  %43 = load ptr, ptr %13, align 8, !tbaa !5
  store i64 0, ptr %43, align 8, !tbaa !9
  store i32 0, ptr %7, align 4
  store i32 1, ptr %17, align 4
  br label %44

44:                                               ; preds = %40, %38, %33
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #3
  call void @llvm.lifetime.end.p0(i64 128, ptr %15) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #3
  %45 = load i32, ptr %7, align 4
  ret i32 %45
}

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"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; 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__.x509_exts_get_ext_by_oid = external hidden unnamed_addr constant [25 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 @x509_ext_from_der(ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 2) i32 @x509_exts_get_ext_by_oid(ptr noundef %0, i64 noundef %1, i32 noundef %2, ptr noundef %3, ptr noundef %4, ptr noundef %5) local_unnamed_addr #2 {
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca i32, align 4
  %10 = alloca [32 x i32], align 16
  %11 = alloca i64, align 8
  store ptr %0, ptr %7, align 8, !tbaa !5
  store i64 %1, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %9) #3
  call void @llvm.lifetime.start.p0(i64 128, ptr nonnull %10) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %11) #3
  %.not8 = icmp eq i64 %1, 0
  br i1 %.not8, label %._crit_edge, label %.lr.ph

thread-pre-split:                                 ; preds = %16
  %.pr = load i64, ptr %8, align 8, !tbaa !9
  %.not = icmp eq i64 %.pr, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %6, %thread-pre-split
  %12 = call i32 @x509_ext_from_der(ptr noundef nonnull %9, ptr noundef nonnull %10, ptr noundef nonnull %11, ptr noundef %3, ptr noundef %4, ptr noundef %5, ptr noundef nonnull %7, ptr noundef nonnull %8)
  %.not7 = icmp eq i32 %12, 1
  br i1 %.not7, label %16, label %13

13:                                               ; preds = %.lr.ph
  %14 = load ptr, ptr @stderr, align 8, !tbaa !5
  %15 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %14, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 673, ptr noundef nonnull @__FUNCTION__.x509_exts_get_ext_by_oid) #4
  br label %.loopexit

16:                                               ; preds = %.lr.ph
  %17 = load i32, ptr %9, align 4, !tbaa !11
  %18 = icmp eq i32 %17, %2
  br i1 %18, label %.loopexit, label %thread-pre-split, !llvm.loop !13

._crit_edge:                                      ; preds = %thread-pre-split, %6
  store i32 -1, ptr %3, align 4, !tbaa !11
  store ptr null, ptr %4, align 8, !tbaa !5
  store i64 0, ptr %5, align 8, !tbaa !9
  br label %.loopexit

.loopexit:                                        ; preds = %16, %._crit_edge, %13
  %.0 = phi i32 [ -1, %13 ], [ 0, %._crit_edge ], [ 1, %16 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %11) #3
  call void @llvm.lifetime.end.p0(i64 128, ptr nonnull %10) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %9) #3
  ret i32 %.0
}

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"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass