; LLVM IR from libtcod/libtcod :: src/libtcod (namegen_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"

@namegen_generators_list = external dso_local global ptr, align 8
@parsed_files = external dso_local global ptr, align 8

; 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

declare ptr @TCOD_list_begin(ptr noundef) #1

declare ptr @TCOD_list_end(ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local void @namegen_generator_delete(ptr noundef) #2

declare void @TCOD_list_clear_and_delete(ptr noundef) #1

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

4:                                                ; preds = %12, %0
  %5 = load ptr, ptr %1, align 8, !tbaa !5
  %6 = load ptr, ptr @namegen_generators_list, align 8, !tbaa !5
  %7 = call ptr @TCOD_list_end(ptr noundef %6)
  %8 = icmp ult ptr %5, %7
  br i1 %8, label %9, label %15

9:                                                ; preds = %4
  %10 = load ptr, ptr %1, align 8, !tbaa !5
  %11 = load ptr, ptr %10, align 8, !tbaa !5
  call void @namegen_generator_delete(ptr noundef %11)
  br label %12

12:                                               ; preds = %9
  %13 = load ptr, ptr %1, align 8, !tbaa !5
  %14 = getelementptr inbounds ptr, ptr %13, i32 1
  store ptr %14, ptr %1, align 8, !tbaa !5
  br label %4, !llvm.loop !9

15:                                               ; preds = %4
  %16 = load ptr, ptr @namegen_generators_list, align 8, !tbaa !5
  call void @TCOD_list_clear(ptr noundef %16)
  %17 = load ptr, ptr @parsed_files, align 8, !tbaa !5
  call void @TCOD_list_clear_and_delete(ptr noundef %17)
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #3
  ret void
}

declare void @TCOD_list_clear(ptr noundef) #1

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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 #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 = 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"

@namegen_generators_list = external dso_local local_unnamed_addr global ptr, align 8
@parsed_files = external dso_local local_unnamed_addr global ptr, align 8

declare ptr @TCOD_list_begin(ptr noundef) local_unnamed_addr #0

declare ptr @TCOD_list_end(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @namegen_generator_delete(ptr noundef) local_unnamed_addr #1

declare void @TCOD_list_clear_and_delete(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @TCOD_namegen_destroy() local_unnamed_addr #1 {
  %1 = load ptr, ptr @namegen_generators_list, align 8, !tbaa !5
  %2 = tail call ptr @TCOD_list_begin(ptr noundef %1) #2
  %3 = load ptr, ptr @namegen_generators_list, align 8, !tbaa !5
  %4 = tail call ptr @TCOD_list_end(ptr noundef %3) #2
  %5 = icmp ult ptr %2, %4
  br i1 %5, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %0, %.lr.ph
  %.03 = phi ptr [ %7, %.lr.ph ], [ %2, %0 ]
  %6 = load ptr, ptr %.03, align 8, !tbaa !5
  tail call void @namegen_generator_delete(ptr noundef %6)
  %7 = getelementptr inbounds i8, ptr %.03, i64 8
  %8 = load ptr, ptr @namegen_generators_list, align 8, !tbaa !5
  %9 = tail call ptr @TCOD_list_end(ptr noundef %8) #2
  %10 = icmp ult ptr %7, %9
  br i1 %10, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph, %0
  %11 = load ptr, ptr @namegen_generators_list, align 8, !tbaa !5
  tail call void @TCOD_list_clear(ptr noundef %11) #2
  %12 = load ptr, ptr @parsed_files, align 8, !tbaa !5
  tail call void @TCOD_list_clear_and_delete(ptr noundef %12) #2
  ret void
}

declare void @TCOD_list_clear(ptr noundef) local_unnamed_addr #0

attributes #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 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"}


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