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

; 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.evthr = type { i32, i32, i32, i32, i8, ptr, ptr, %union.pthread_mutex_t, %union.pthread_mutex_t, %union.pthread_mutex_t, ptr, ptr, ptr, ptr, %struct.anon }
%union.pthread_mutex_t = type { %struct.__pthread_mutex_s }
%struct.__pthread_mutex_s = type { i32, i32, i32, i32, i32, i16, i16, %struct.__pthread_internal_list }
%struct.__pthread_internal_list = type { ptr, ptr }
%struct.anon = type { ptr, ptr }

; Function Attrs: inlinehint nounwind uwtable
define dso_local i32 @evthr_set_backlog(ptr noundef %0, i32 noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.evthr, ptr %8, i32 0, i32 3
  %10 = load i32, ptr %9, align 4, !tbaa !11
  %11 = icmp slt i32 %10, 0
  br i1 %11, label %12, label %13

12:                                               ; preds = %2
  store i32 -1, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %22

13:                                               ; preds = %2
  %14 = load i32, ptr %5, align 4, !tbaa !9
  %15 = sext i32 %14 to i64
  %16 = mul i64 %15, 17
  %17 = trunc i64 %16 to i32
  store i32 %17, ptr %6, align 4, !tbaa !9
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.evthr, ptr %18, i32 0, i32 3
  %20 = load i32, ptr %19, align 4, !tbaa !11
  %21 = call i32 @setsockopt(i32 noundef %20, i32 noundef 1, i32 noundef 8, ptr noundef %6, i32 noundef 4) #3
  store i32 %21, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %22

22:                                               ; preds = %13, %12
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  %23 = load i32, ptr %3, align 4
  ret i32 %23
}

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

; Function Attrs: nounwind
declare i32 @setsockopt(i32 noundef, i32 noundef, i32 noundef, ptr noundef, i32 noundef) #2

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

attributes #0 = { inlinehint 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 "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 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 12}
!12 = !{!"evthr", !10, i64 0, !10, i64 4, !10, i64 8, !10, i64 12, !7, i64 16, !6, i64 24, !6, i64 32, !7, i64 40, !7, i64 80, !7, i64 120, !6, i64 160, !6, i64 168, !6, i64 176, !6, i64 184, !13, i64 192}
!13 = !{!"", !6, i64 0, !6, i64 8}


; 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: inlinehint nounwind uwtable
define dso_local i32 @evthr_set_backlog(ptr nocapture noundef readonly %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #3
  %4 = getelementptr inbounds i8, ptr %0, i64 12
  %5 = load i32, ptr %4, align 4, !tbaa !5
  %6 = icmp slt i32 %5, 0
  br i1 %6, label %10, label %7

7:                                                ; preds = %2
  %8 = mul i32 %1, 17
  store i32 %8, ptr %3, align 4, !tbaa !12
  %9 = call i32 @setsockopt(i32 noundef %5, i32 noundef 1, i32 noundef 8, ptr noundef nonnull %3, i32 noundef 4) #3
  br label %10

10:                                               ; preds = %2, %7
  %.0 = phi i32 [ %9, %7 ], [ -1, %2 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #3
  ret i32 %.0
}

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

; Function Attrs: nounwind
declare i32 @setsockopt(i32 noundef, i32 noundef, i32 noundef, ptr noundef, i32 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) #1

attributes #0 = { inlinehint 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 nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #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, !7, i64 12}
!6 = !{!"evthr", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !8, i64 16, !10, i64 24, !10, i64 32, !8, i64 40, !8, i64 80, !8, i64 120, !10, i64 160, !10, i64 168, !10, i64 176, !10, i64 184, !11, i64 192}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!"", !10, i64 0, !10, i64 8}
!12 = !{!7, !7, i64 0}


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