; LLVM IR from buaazp/zimg :: deps/libevhtp (evhtp)

; 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"

; Function Attrs: nounwind uwtable
define dso_local ptr @evhtp_header_key_add(ptr noundef %0, ptr noundef %1, i8 noundef signext %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i8, align 1
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i8 %2, ptr %7, align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #2
  %10 = load ptr, ptr %6, align 8, !tbaa !5
  %11 = load i8, ptr %7, align 1, !tbaa !9
  %12 = call ptr @evhtp_kv_new(ptr noundef %10, ptr noundef null, i8 noundef signext %11, i8 noundef signext 0)
  store ptr %12, ptr %8, align 8, !tbaa !5
  %13 = icmp ne ptr %12, null
  br i1 %13, label %15, label %14

14:                                               ; preds = %3
  store ptr null, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %19

15:                                               ; preds = %3
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = load ptr, ptr %8, align 8, !tbaa !5
  call void @evhtp_kvs_add_kv(ptr noundef %16, ptr noundef %17)
  %18 = load ptr, ptr %8, align 8, !tbaa !5
  store ptr %18, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %19

19:                                               ; preds = %15, %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #2
  %20 = load ptr, ptr %4, align 8
  ret ptr %20
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind uwtable
declare dso_local ptr @evhtp_kv_new(ptr noundef, ptr noundef, i8 noundef signext, i8 noundef signext) #0

; Function Attrs: nounwind uwtable
declare dso_local void @evhtp_kvs_add_kv(ptr noundef, ptr noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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 nosync nounwind willreturn memory(argmem: readwrite) }
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"

; Function Attrs: nounwind uwtable
define dso_local ptr @evhtp_header_key_add(ptr noundef %0, ptr noundef %1, i8 noundef signext %2) local_unnamed_addr #0 {
  %4 = tail call ptr @evhtp_kv_new(ptr noundef %1, ptr noundef null, i8 noundef signext %2, i8 noundef signext 0)
  %.not = icmp eq ptr %4, null
  br i1 %.not, label %6, label %5

5:                                                ; preds = %3
  tail call void @evhtp_kvs_add_kv(ptr noundef %0, ptr noundef nonnull %4)
  br label %6

6:                                                ; preds = %3, %5
  ret ptr %4
}

; Function Attrs: nounwind uwtable
declare dso_local ptr @evhtp_kv_new(ptr noundef, ptr noundef, i8 noundef signext, i8 noundef signext) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @evhtp_kvs_add_kv(ptr noundef, ptr 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" }

!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)"}


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