; LLVM IR from libtcod/libtcod :: src/libtcod (list_c)

; 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: 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
declare dso_local ptr @TCOD_list_begin(ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local ptr @TCOD_list_end(ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local ptr @TCOD_list_remove_iterator(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @TCOD_list_remove(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = call ptr @TCOD_list_begin(ptr noundef %7)
  store ptr %8, ptr %5, align 8, !tbaa !5
  br label %9

9:                                                ; preds = %24, %2
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = call ptr @TCOD_list_end(ptr noundef %11)
  %13 = icmp ne ptr %10, %12
  br i1 %13, label %14, label %27

14:                                               ; preds = %9
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = load ptr, ptr %15, align 8, !tbaa !5
  %17 = load ptr, ptr %4, align 8, !tbaa !5
  %18 = icmp eq ptr %16, %17
  br i1 %18, label %19, label %23

19:                                               ; preds = %14
  %20 = load ptr, ptr %3, align 8, !tbaa !5
  %21 = load ptr, ptr %5, align 8, !tbaa !5
  %22 = call ptr @TCOD_list_remove_iterator(ptr noundef %20, ptr noundef %21)
  store i32 1, ptr %6, align 4
  br label %28

23:                                               ; preds = %14
  br label %24

24:                                               ; preds = %23
  %25 = load ptr, ptr %5, align 8, !tbaa !5
  %26 = getelementptr inbounds ptr, ptr %25, i32 1
  store ptr %26, ptr %5, align 8, !tbaa !5
  br label %9, !llvm.loop !9

27:                                               ; preds = %9
  store i32 0, ptr %6, align 4
  br label %28

28:                                               ; preds = %27, %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  %29 = load i32, ptr %6, align 4
  switch i32 %29, label %31 [
    i32 0, label %30
    i32 1, label %30
  ]

30:                                               ; preds = %28, %28
  ret void

31:                                               ; preds = %28
  unreachable
}

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 = distinct !{!9, !10}
!10 = !{!"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
declare dso_local ptr @TCOD_list_begin(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local ptr @TCOD_list_end(ptr noundef) local_unnamed_addr #0

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

; Function Attrs: nounwind uwtable
define dso_local void @TCOD_list_remove(ptr noundef %0, ptr noundef readnone %1) local_unnamed_addr #0 {
  %3 = tail call ptr @TCOD_list_begin(ptr noundef %0)
  %4 = tail call ptr @TCOD_list_end(ptr noundef %0)
  %.not9 = icmp eq ptr %3, %4
  br i1 %.not9, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %2, %9
  %.010 = phi ptr [ %10, %9 ], [ %3, %2 ]
  %5 = load ptr, ptr %.010, align 8, !tbaa !5
  %6 = icmp eq ptr %5, %1
  br i1 %6, label %7, label %9

7:                                                ; preds = %.lr.ph
  %8 = tail call ptr @TCOD_list_remove_iterator(ptr noundef %0, ptr noundef nonnull %.010)
  br label %.loopexit

9:                                                ; preds = %.lr.ph
  %10 = getelementptr inbounds i8, ptr %.010, i64 8
  %11 = tail call ptr @TCOD_list_end(ptr noundef %0)
  %.not = icmp eq ptr %10, %11
  br i1 %.not, label %.loopexit, label %.lr.ph, !llvm.loop !9

.loopexit:                                        ; preds = %9, %2, %7
  ret void
}

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)"}
!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: GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass