; LLVM IR from openssl/openssl :: ssl/quic (json_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.ossl_json_enc_st = type { i32, i8, i8, i8, ptr, i8, [16 x i8], %struct.json_write_buf, i64, i64 }
%struct.json_write_buf = type { ptr, ptr, i64, i64 }

; Function Attrs: nounwind uwtable
define dso_local i32 @ossl_json_init(ptr noundef %0, ptr noundef %1, i32 noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i32 %2, ptr %7, align 4, !tbaa !9
  %8 = load ptr, ptr %5, align 8, !tbaa !5
  call void @llvm.memset.p0.i64(ptr align 8 %8, i8 0, i64 88, i1 false)
  %9 = load i32, ptr %7, align 4, !tbaa !9
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.ossl_json_enc_st, ptr %10, i32 0, i32 0
  store i32 %9, ptr %11, align 8, !tbaa !11
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.ossl_json_enc_st, ptr %12, i32 0, i32 1
  store i8 0, ptr %13, align 4, !tbaa !15
  %14 = load ptr, ptr %5, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.ossl_json_enc_st, ptr %14, i32 0, i32 7
  %16 = load ptr, ptr %6, align 8, !tbaa !5
  %17 = call i32 @wbuf_init(ptr noundef %15, ptr noundef %16, i64 noundef 4096)
  %18 = icmp ne i32 %17, 0
  br i1 %18, label %20, label %19

19:                                               ; preds = %3
  store i32 0, ptr %4, align 4
  br label %23

20:                                               ; preds = %3
  %21 = load ptr, ptr %5, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.ossl_json_enc_st, ptr %21, i32 0, i32 3
  store i8 2, ptr %22, align 2, !tbaa !16
  store i32 1, ptr %4, align 4
  br label %23

23:                                               ; preds = %20, %19
  %24 = load i32, ptr %4, align 4
  ret i32 %24
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

; Function Attrs: nounwind uwtable
declare hidden i32 @wbuf_init(ptr noundef, ptr noundef, i64 noundef) #0

attributes #0 = { 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 #1 = { nocallback nofree nounwind willreturn memory(argmem: write) }

!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, !10, i64 0}
!12 = !{!"ossl_json_enc_st", !10, i64 0, !7, i64 4, !7, i64 5, !7, i64 6, !6, i64 8, !7, i64 16, !7, i64 17, !13, i64 40, !14, i64 72, !14, i64 80}
!13 = !{!"json_write_buf", !6, i64 0, !6, i64 8, !14, i64 16, !14, i64 24}
!14 = !{!"long", !7, i64 0}
!15 = !{!12, !7, i64 4}
!16 = !{!12, !7, i64 6}


; 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"

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 2) i32 @ossl_json_init(ptr noundef %0, ptr noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(88) %0, i8 0, i64 88, i1 false)
  store i32 %2, ptr %0, align 8, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %0, i64 40
  %5 = tail call i32 @wbuf_init(ptr noundef nonnull %4, ptr noundef %1, i64 noundef 4096)
  %.not = icmp eq i32 %5, 0
  br i1 %.not, label %8, label %6

6:                                                ; preds = %3
  %7 = getelementptr inbounds i8, ptr %0, i64 6
  store i8 2, ptr %7, align 2, !tbaa !13
  br label %8

8:                                                ; preds = %3, %6
  %.0 = phi i32 [ 1, %6 ], [ 0, %3 ]
  ret i32 %.0
}

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

; Function Attrs: nounwind uwtable
declare hidden i32 @wbuf_init(ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #0

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }

!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, !7, i64 0}
!6 = !{!"ossl_json_enc_st", !7, i64 0, !8, i64 4, !8, i64 5, !8, i64 6, !10, i64 8, !8, i64 16, !8, i64 17, !11, i64 40, !12, i64 72, !12, i64 80}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!"json_write_buf", !10, i64 0, !10, i64 8, !12, i64 16, !12, i64 24}
!12 = !{!"long", !8, i64 0}
!13 = !{!6, !8, i64 6}


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