; LLVM IR from zisisvakras/crossw :: src (words)

; 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.Word = type { i32, i32, i32, i32, i32, i32, i32, ptr, ptr, ptr, ptr, ptr }
%struct.Map = type { ptr, i32, i32 }

; 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
declare void @free(ptr noundef) #1

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

7:                                                ; preds = %36, %2
  %8 = load i32, ptr %5, align 4, !tbaa !9
  %9 = load i32, ptr %4, align 4, !tbaa !9
  %10 = icmp slt i32 %8, %9
  br i1 %10, label %12, label %11

11:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  br label %39

12:                                               ; preds = %7
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = load i32, ptr %5, align 4, !tbaa !9
  %15 = sext i32 %14 to i64
  %16 = getelementptr inbounds ptr, ptr %13, i64 %15
  %17 = load ptr, ptr %16, align 8, !tbaa !5
  store ptr %17, ptr %6, align 8, !tbaa !5
  %18 = load ptr, ptr %6, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.Word, ptr %18, i32 0, i32 8
  %20 = load ptr, ptr %19, align 8, !tbaa !11
  %21 = getelementptr inbounds %struct.Map, ptr %20, i32 0, i32 0
  %22 = load ptr, ptr %21, align 8, !tbaa !13
  call void @free(ptr noundef %22) #3
  %23 = load ptr, ptr %6, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.Word, ptr %23, i32 0, i32 8
  %25 = load ptr, ptr %24, align 8, !tbaa !11
  call void @free(ptr noundef %25) #3
  %26 = load ptr, ptr %6, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.Word, ptr %26, i32 0, i32 7
  %28 = load ptr, ptr %27, align 8, !tbaa !15
  call void @free(ptr noundef %28) #3
  %29 = load ptr, ptr %6, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.Word, ptr %29, i32 0, i32 9
  %31 = load ptr, ptr %30, align 8, !tbaa !16
  call void @free(ptr noundef %31) #3
  %32 = load ptr, ptr %6, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.Word, ptr %32, i32 0, i32 10
  %34 = load ptr, ptr %33, align 8, !tbaa !17
  call void @free(ptr noundef %34) #3
  %35 = load ptr, ptr %6, align 8, !tbaa !5
  call void @free(ptr noundef %35) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %36

36:                                               ; preds = %12
  %37 = load i32, ptr %5, align 4, !tbaa !9
  %38 = add nsw i32 %37, 1
  store i32 %38, ptr %5, align 4, !tbaa !9
  br label %7, !llvm.loop !18

39:                                               ; preds = %11
  %40 = load ptr, ptr %3, align 8, !tbaa !5
  call void @free(ptr noundef %40) #3
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nounwind "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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !6, i64 40}
!12 = !{!"Word", !10, i64 0, !10, i64 4, !10, i64 8, !10, i64 12, !10, i64 16, !10, i64 20, !10, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64}
!13 = !{!14, !6, i64 0}
!14 = !{!"Map", !6, i64 0, !10, i64 8, !10, i64 12}
!15 = !{!12, !6, i64 32}
!16 = !{!12, !6, i64 48}
!17 = !{!12, !6, i64 56}
!18 = distinct !{!18, !19}
!19 = !{!"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: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @free_words(ptr nocapture noundef %0, i32 noundef %1) local_unnamed_addr #1 {
  %3 = icmp sgt i32 %1, 0
  br i1 %3, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %2
  %wide.trip.count = zext nneg i32 %1 to i64
  br label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %2
  tail call void @free(ptr noundef %0) #2
  ret void

.lr.ph:                                           ; preds = %.lr.ph.preheader, %.lr.ph
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %.lr.ph ]
  %4 = getelementptr inbounds ptr, ptr %0, i64 %indvars.iv
  %5 = load ptr, ptr %4, align 8, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %5, i64 40
  %7 = load ptr, ptr %6, align 8, !tbaa !9
  %8 = load ptr, ptr %7, align 8, !tbaa !12
  tail call void @free(ptr noundef %8) #2
  %9 = load ptr, ptr %6, align 8, !tbaa !9
  tail call void @free(ptr noundef %9) #2
  %10 = getelementptr inbounds i8, ptr %5, i64 32
  %11 = load ptr, ptr %10, align 8, !tbaa !14
  tail call void @free(ptr noundef %11) #2
  %12 = getelementptr inbounds i8, ptr %5, i64 48
  %13 = load ptr, ptr %12, align 8, !tbaa !15
  tail call void @free(ptr noundef %13) #2
  %14 = getelementptr inbounds i8, ptr %5, i64 56
  %15 = load ptr, ptr %14, align 8, !tbaa !16
  tail call void @free(ptr noundef %15) #2
  tail call void @free(ptr noundef %5) #2
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !17
}

attributes #0 = { mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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 40}
!10 = !{!"Word", !11, i64 0, !11, i64 4, !11, i64 8, !11, i64 12, !11, i64 16, !11, i64 20, !11, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64}
!11 = !{!"int", !7, i64 0}
!12 = !{!13, !6, i64 0}
!13 = !{!"Map", !6, i64 0, !11, i64 8, !11, i64 12}
!14 = !{!10, !6, i64 32}
!15 = !{!10, !6, i64 48}
!16 = !{!10, !6, i64 56}
!17 = distinct !{!17, !18}
!18 = !{!"llvm.loop.mustprogress"}


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