; 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"

%struct.evhtp_kvs_s = type { ptr, ptr }
%struct.evhtp_kv_s = type { ptr, ptr, i64, i64, i8, i8, %struct.anon.1 }
%struct.anon.1 = type { ptr, ptr }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; 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
define dso_local i32 @evhtp_kvs_for_each(ptr noundef %0, ptr noundef %1, ptr noundef %2) #1 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #2
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = icmp eq ptr %11, null
  br i1 %12, label %16, label %13

13:                                               ; preds = %3
  %14 = load ptr, ptr %6, align 8, !tbaa !5
  %15 = icmp eq ptr %14, null
  br i1 %15, label %16, label %17

16:                                               ; preds = %13, %3
  store i32 -1, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %42

17:                                               ; preds = %13
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.evhtp_kvs_s, ptr %18, i32 0, i32 0
  %20 = load ptr, ptr %19, align 8, !tbaa !9
  store ptr %20, ptr %8, align 8, !tbaa !5
  br label %21

21:                                               ; preds = %36, %17
  %22 = load ptr, ptr %8, align 8, !tbaa !5
  %23 = icmp ne ptr %22, null
  br i1 %23, label %24, label %41

24:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #2
  %25 = load ptr, ptr %6, align 8, !tbaa !5
  %26 = load ptr, ptr %8, align 8, !tbaa !5
  %27 = load ptr, ptr %7, align 8, !tbaa !5
  %28 = call i32 %25(ptr noundef %26, ptr noundef %27)
  store i32 %28, ptr %10, align 4, !tbaa !11
  %29 = icmp ne i32 %28, 0
  br i1 %29, label %30, label %32

30:                                               ; preds = %24
  %31 = load i32, ptr %10, align 4, !tbaa !11
  store i32 %31, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %33

32:                                               ; preds = %24
  store i32 0, ptr %9, align 4
  br label %33

33:                                               ; preds = %32, %30
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #2
  %34 = load i32, ptr %9, align 4
  switch i32 %34, label %42 [
    i32 0, label %35
  ]

35:                                               ; preds = %33
  br label %36

36:                                               ; preds = %35
  %37 = load ptr, ptr %8, align 8, !tbaa !5
  %38 = getelementptr inbounds %struct.evhtp_kv_s, ptr %37, i32 0, i32 6
  %39 = getelementptr inbounds %struct.anon.1, ptr %38, i32 0, i32 0
  %40 = load ptr, ptr %39, align 8, !tbaa !13
  store ptr %40, ptr %8, align 8, !tbaa !5
  br label %21, !llvm.loop !17

41:                                               ; preds = %21
  store i32 0, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %42

42:                                               ; preds = %41, %33, %16
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #2
  %43 = load i32, ptr %4, align 4
  ret i32 %43
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = !{!10, !6, i64 0}
!10 = !{!"evhtp_kvs_s", !6, i64 0, !6, i64 8}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!14, !6, i64 40}
!14 = !{!"evhtp_kv_s", !6, i64 0, !6, i64 8, !15, i64 16, !15, i64 24, !7, i64 32, !7, i64 33, !16, i64 40}
!15 = !{!"long", !7, i64 0}
!16 = !{!"", !6, i64 0, !6, i64 8}
!17 = distinct !{!17, !18}
!18 = !{!"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"

; Function Attrs: nounwind uwtable
define dso_local i32 @evhtp_kvs_for_each(ptr noundef readonly %0, ptr noundef readonly %1, ptr noundef %2) local_unnamed_addr #0 {
  %4 = icmp eq ptr %0, null
  %5 = icmp eq ptr %1, null
  %or.cond = or i1 %4, %5
  br i1 %or.cond, label %.loopexit, label %.preheader

.preheader:                                       ; preds = %3
  %.01217 = load ptr, ptr %0, align 8, !tbaa !5
  %.not18 = icmp eq ptr %.01217, null
  br i1 %.not18, label %.loopexit, label %.lr.ph

6:                                                ; preds = %.lr.ph
  %7 = getelementptr inbounds i8, ptr %.01219, i64 40
  %.012 = load ptr, ptr %7, align 8, !tbaa !5
  %.not = icmp eq ptr %.012, null
  br i1 %.not, label %.loopexit, label %.lr.ph, !llvm.loop !9

.lr.ph:                                           ; preds = %.preheader, %6
  %.01219 = phi ptr [ %.012, %6 ], [ %.01217, %.preheader ]
  %8 = tail call i32 %1(ptr noundef nonnull %.01219, ptr noundef %2) #1
  %.not16 = icmp eq i32 %8, 0
  br i1 %.not16, label %6, label %.loopexit

.loopexit:                                        ; preds = %.lr.ph, %6, %.preheader, %3
  %.2 = phi i32 [ -1, %3 ], [ 0, %.preheader ], [ %8, %.lr.ph ], [ 0, %6 ]
  ret i32 %.2
}

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 = { 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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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