; LLVM IR from ohler55/agoo :: ext/agoo (upgraded)

; 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._agooUpgraded = type { ptr, ptr, ptr, %struct._agooAtom, %struct._agooAtom, ptr, ptr, ptr, ptr, i8, i8, i8, i8, i8, ptr }
%struct._agooAtom = type { ptr, %union.pthread_mutex_t }
%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._agooSubject = type { ptr, [8 x i8] }

; 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 zeroext i1 @agoo_upgraded_match(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca i1, align 1
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct._agooUpgraded, ptr %8, i32 0, i32 5
  %10 = load ptr, ptr %9, align 8, !tbaa !9
  store ptr %10, ptr %6, align 8, !tbaa !5
  br label %11

11:                                               ; preds = %20, %2
  %12 = load ptr, ptr %6, align 8, !tbaa !5
  %13 = icmp ne ptr null, %12
  br i1 %13, label %14, label %24

14:                                               ; preds = %11
  %15 = load ptr, ptr %6, align 8, !tbaa !5
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = call zeroext i1 @agoo_subject_check(ptr noundef %15, ptr noundef %16)
  br i1 %17, label %18, label %19

18:                                               ; preds = %14
  store i1 true, ptr %3, align 1
  store i32 1, ptr %7, align 4
  br label %25

19:                                               ; preds = %14
  br label %20

20:                                               ; preds = %19
  %21 = load ptr, ptr %6, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct._agooSubject, ptr %21, i32 0, i32 0
  %23 = load ptr, ptr %22, align 8, !tbaa !13
  store ptr %23, ptr %6, align 8, !tbaa !5
  br label %11, !llvm.loop !15

24:                                               ; preds = %11
  store i1 false, ptr %3, align 1
  store i32 1, ptr %7, align 4
  br label %25

25:                                               ; preds = %24, %18
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  %26 = load i1, ptr %3, align 1
  ret i1 %26
}

declare zeroext i1 @agoo_subject_check(ptr noundef, ptr noundef) #2

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 = { "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, !6, i64 120}
!10 = !{!"_agooUpgraded", !6, i64 0, !6, i64 8, !6, i64 16, !11, i64 24, !11, i64 72, !6, i64 120, !6, i64 128, !6, i64 136, !6, i64 144, !12, i64 152, !12, i64 153, !12, i64 154, !12, i64 155, !12, i64 156, !6, i64 160}
!11 = !{!"_agooAtom", !6, i64 0, !7, i64 8}
!12 = !{!"_Bool", !7, i64 0}
!13 = !{!14, !6, i64 0}
!14 = !{!"_agooSubject", !6, i64 0, !7, i64 8}
!15 = distinct !{!15, !16}
!16 = !{!"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 noundef zeroext i1 @agoo_upgraded_match(ptr nocapture noundef readonly %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %0, i64 120
  br label %4

4:                                                ; preds = %5, %2
  %.0.in = phi ptr [ %3, %2 ], [ %.0, %5 ]
  %.0 = load ptr, ptr %.0.in, align 8, !tbaa !5
  %.not.not = icmp ne ptr %.0, null
  br i1 %.not.not, label %5, label %7

5:                                                ; preds = %4
  %6 = tail call zeroext i1 @agoo_subject_check(ptr noundef nonnull %.0, ptr noundef %1) #2
  br i1 %6, label %7, label %4, !llvm.loop !9

7:                                                ; preds = %4, %5
  ret i1 %.not.not
}

declare zeroext i1 @agoo_subject_check(ptr noundef, ptr noundef) local_unnamed_addr #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 = { "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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass