; 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"

%struct.TCOD_NameGen = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }

@namegen_generators_list = 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_new() #1

declare ptr @TCOD_list_begin(ptr noundef) #1

declare ptr @TCOD_list_end(ptr noundef) #1

declare void @TCOD_list_push(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local ptr @TCOD_namegen_get_sets() #2 {
  %1 = alloca ptr, align 8
  %2 = alloca ptr, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %1) #3
  %3 = call ptr @TCOD_list_new()
  store ptr %3, ptr %1, align 8, !tbaa !5
  %4 = load ptr, ptr @namegen_generators_list, align 8, !tbaa !5
  %5 = icmp ne ptr %4, null
  br i1 %5, label %6, label %24

6:                                                ; preds = %0
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  %7 = load ptr, ptr @namegen_generators_list, align 8, !tbaa !5
  %8 = call ptr @TCOD_list_begin(ptr noundef %7)
  store ptr %8, ptr %2, align 8, !tbaa !5
  br label %9

9:                                                ; preds = %20, %6
  %10 = load ptr, ptr %2, align 8, !tbaa !5
  %11 = load ptr, ptr @namegen_generators_list, align 8, !tbaa !5
  %12 = call ptr @TCOD_list_end(ptr noundef %11)
  %13 = icmp ult ptr %10, %12
  br i1 %13, label %14, label %23

14:                                               ; preds = %9
  %15 = load ptr, ptr %1, align 8, !tbaa !5
  %16 = load ptr, ptr %2, align 8, !tbaa !5
  %17 = load ptr, ptr %16, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.TCOD_NameGen, ptr %17, i32 0, i32 0
  %19 = load ptr, ptr %18, align 8, !tbaa !9
  call void @TCOD_list_push(ptr noundef %15, ptr noundef %19)
  br label %20

20:                                               ; preds = %14
  %21 = load ptr, ptr %2, align 8, !tbaa !5
  %22 = getelementptr inbounds ptr, ptr %21, i32 1
  store ptr %22, ptr %2, align 8, !tbaa !5
  br label %9, !llvm.loop !11

23:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  br label %24

24:                                               ; preds = %23, %0
  %25 = load ptr, ptr %1, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #3
  ret ptr %25
}

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 = !{!10, !6, i64 0}
!10 = !{!"TCOD_NameGen", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64, !6, i64 72, !6, i64 80}
!11 = distinct !{!11, !12}
!12 = !{!"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

declare ptr @TCOD_list_new() local_unnamed_addr #0

declare ptr @TCOD_list_begin(ptr noundef) local_unnamed_addr #0

declare ptr @TCOD_list_end(ptr noundef) local_unnamed_addr #0

declare void @TCOD_list_push(ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local ptr @TCOD_namegen_get_sets() local_unnamed_addr #1 {
  %1 = tail call ptr @TCOD_list_new() #2
  %2 = load ptr, ptr @namegen_generators_list, align 8, !tbaa !5
  %.not = icmp eq ptr %2, null
  br i1 %.not, label %.loopexit, label %3

3:                                                ; preds = %0
  %4 = tail call ptr @TCOD_list_begin(ptr noundef nonnull %2) #2
  %5 = load ptr, ptr @namegen_generators_list, align 8, !tbaa !5
  %6 = tail call ptr @TCOD_list_end(ptr noundef %5) #2
  %7 = icmp ult ptr %4, %6
  br i1 %7, label %.lr.ph, label %.loopexit

.lr.ph:                                           ; preds = %3, %.lr.ph
  %.06 = phi ptr [ %10, %.lr.ph ], [ %4, %3 ]
  %8 = load ptr, ptr %.06, align 8, !tbaa !5
  %9 = load ptr, ptr %8, align 8, !tbaa !9
  tail call void @TCOD_list_push(ptr noundef %1, ptr noundef %9) #2
  %10 = getelementptr inbounds i8, ptr %.06, i64 8
  %11 = load ptr, ptr @namegen_generators_list, align 8, !tbaa !5
  %12 = tail call ptr @TCOD_list_end(ptr noundef %11) #2
  %13 = icmp ult ptr %10, %12
  br i1 %13, label %.lr.ph, label %.loopexit, !llvm.loop !11

.loopexit:                                        ; preds = %.lr.ph, %3, %0
  ret ptr %1
}

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 = !{!10, !6, i64 0}
!10 = !{!"TCOD_NameGen", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64, !6, i64 72, !6, i64 80}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


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