; LLVM IR from mackorone/mms :: old/v2/src/mouse/mackAlgo/CellHeap.ll (ZN8mackAlgo8CellHeap16increaseCapacityEv)

; 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"

%"class.mackAlgo::CellHeap" = type { i32, i32, ptr }

; 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: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN8mackAlgo8CellHeap16increaseCapacityEv(ptr noundef nonnull align 8 dereferenceable(16) %0) #2 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  %5 = load ptr, ptr %2, align 8
  %6 = getelementptr inbounds %"class.mackAlgo::CellHeap", ptr %5, i32 0, i32 1
  %7 = load i32, ptr %6, align 4, !tbaa !9
  %8 = mul nsw i32 %7, 2
  store i32 %8, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  %9 = getelementptr inbounds %"class.mackAlgo::CellHeap", ptr %5, i32 0, i32 1
  %10 = load i32, ptr %9, align 4, !tbaa !9
  %11 = sext i32 %10 to i64
  %12 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %11, i64 8)
  %13 = extractvalue { i64, i1 } %12, 1
  %14 = extractvalue { i64, i1 } %12, 0
  %15 = select i1 %13, i64 -1, i64 %14
  %16 = call noalias noundef nonnull ptr @_Znam(i64 noundef %15) #6
  store ptr %16, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #5
  store i32 0, ptr %4, align 4, !tbaa !12
  br label %17

17:                                               ; preds = %34, %1
  %18 = load i32, ptr %4, align 4, !tbaa !12
  %19 = getelementptr inbounds %"class.mackAlgo::CellHeap", ptr %5, i32 0, i32 0
  %20 = load i32, ptr %19, align 8, !tbaa !13
  %21 = icmp slt i32 %18, %20
  br i1 %21, label %23, label %22

22:                                               ; preds = %17
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  br label %37

23:                                               ; preds = %17
  %24 = getelementptr inbounds %"class.mackAlgo::CellHeap", ptr %5, i32 0, i32 2
  %25 = load ptr, ptr %24, align 8, !tbaa !14
  %26 = load i32, ptr %4, align 4, !tbaa !12
  %27 = sext i32 %26 to i64
  %28 = getelementptr inbounds ptr, ptr %25, i64 %27
  %29 = load ptr, ptr %28, align 8, !tbaa !5
  %30 = load ptr, ptr %3, align 8, !tbaa !5
  %31 = load i32, ptr %4, align 4, !tbaa !12
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds ptr, ptr %30, i64 %32
  store ptr %29, ptr %33, align 8, !tbaa !5
  br label %34

34:                                               ; preds = %23
  %35 = load i32, ptr %4, align 4, !tbaa !12
  %36 = add nsw i32 %35, 1
  store i32 %36, ptr %4, align 4, !tbaa !12
  br label %17, !llvm.loop !15

37:                                               ; preds = %22
  %38 = getelementptr inbounds %"class.mackAlgo::CellHeap", ptr %5, i32 0, i32 2
  %39 = load ptr, ptr %38, align 8, !tbaa !14
  %40 = icmp eq ptr %39, null
  br i1 %40, label %42, label %41

41:                                               ; preds = %37
  call void @_ZdaPv(ptr noundef %39) #7
  br label %42

42:                                               ; preds = %41, %37
  %43 = load ptr, ptr %3, align 8, !tbaa !5
  %44 = getelementptr inbounds %"class.mackAlgo::CellHeap", ptr %5, i32 0, i32 2
  store ptr %43, ptr %44, align 8, !tbaa !14
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  ret void
}

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) #3

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #4

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nobuiltin allocsize(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 = { mustprogress 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 = { nobuiltin 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 #4 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #5 = { nounwind }
attributes #6 = { builtin allocsize(0) }
attributes #7 = { builtin 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++ TBAA"}
!9 = !{!10, !11, i64 4}
!10 = !{!"_ZTSN8mackAlgo8CellHeapE", !11, i64 0, !11, i64 4, !6, i64 8}
!11 = !{!"int", !7, i64 0}
!12 = !{!11, !11, i64 0}
!13 = !{!10, !11, i64 0}
!14 = !{!10, !6, 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: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN8mackAlgo8CellHeap16increaseCapacityEv(ptr nocapture noundef nonnull align 8 dereferenceable(16) %0) local_unnamed_addr #1 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 4
  %3 = load i32, ptr %2, align 4, !tbaa !5
  %4 = shl nsw i32 %3, 1
  store i32 %4, ptr %2, align 4, !tbaa !5
  %5 = sext i32 %4 to i64
  %6 = icmp slt i32 %3, 0
  %7 = shl nsw i64 %5, 3
  %8 = select i1 %6, i64 -1, i64 %7
  %9 = tail call noalias noundef nonnull ptr @_Znam(i64 noundef %8) #3
  %10 = load i32, ptr %0, align 8, !tbaa !11
  %11 = icmp sgt i32 %10, 0
  %12 = getelementptr inbounds i8, ptr %0, i64 8
  %13 = load ptr, ptr %12, align 8, !tbaa !12
  br i1 %11, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1
  %14 = ptrtoint ptr %13 to i64
  %15 = ptrtoint ptr %9 to i64
  %wide.trip.count = zext nneg i32 %10 to i64
  %min.iters.check = icmp ult i32 %10, 6
  %16 = sub i64 %15, %14
  %diff.check = icmp ult i64 %16, 32
  %or.cond = select i1 %min.iters.check, i1 true, i1 %diff.check
  br i1 %or.cond, label %scalar.ph.preheader, label %vector.ph

scalar.ph.preheader:                              ; preds = %middle.block, %.lr.ph
  %indvars.iv.ph = phi i64 [ 0, %.lr.ph ], [ %n.vec, %middle.block ]
  %xtraiter = and i64 %wide.trip.count, 3
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %scalar.ph.prol.loopexit, label %scalar.ph.prol

scalar.ph.prol:                                   ; preds = %scalar.ph.preheader, %scalar.ph.prol
  %indvars.iv.prol = phi i64 [ %indvars.iv.next.prol, %scalar.ph.prol ], [ %indvars.iv.ph, %scalar.ph.preheader ]
  %prol.iter = phi i64 [ %prol.iter.next, %scalar.ph.prol ], [ 0, %scalar.ph.preheader ]
  %17 = getelementptr inbounds ptr, ptr %13, i64 %indvars.iv.prol
  %18 = load ptr, ptr %17, align 8, !tbaa !13
  %19 = getelementptr inbounds ptr, ptr %9, i64 %indvars.iv.prol
  store ptr %18, ptr %19, align 8, !tbaa !13
  %indvars.iv.next.prol = add nuw nsw i64 %indvars.iv.prol, 1
  %prol.iter.next = add i64 %prol.iter, 1
  %prol.iter.cmp.not = icmp eq i64 %prol.iter.next, %xtraiter
  br i1 %prol.iter.cmp.not, label %scalar.ph.prol.loopexit, label %scalar.ph.prol, !llvm.loop !14

scalar.ph.prol.loopexit:                          ; preds = %scalar.ph.prol, %scalar.ph.preheader
  %indvars.iv.unr = phi i64 [ %indvars.iv.ph, %scalar.ph.preheader ], [ %indvars.iv.next.prol, %scalar.ph.prol ]
  %20 = sub nsw i64 %indvars.iv.ph, %wide.trip.count
  %21 = icmp ugt i64 %20, -4
  br i1 %21, label %._crit_edge.thread, label %scalar.ph

vector.ph:                                        ; preds = %.lr.ph
  %n.vec = and i64 %wide.trip.count, 2147483644
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %22 = getelementptr inbounds ptr, ptr %13, i64 %index
  %23 = getelementptr inbounds i8, ptr %22, i64 16
  %wide.load = load <2 x ptr>, ptr %22, align 8, !tbaa !13
  %wide.load9 = load <2 x ptr>, ptr %23, align 8, !tbaa !13
  %24 = getelementptr inbounds ptr, ptr %9, i64 %index
  %25 = getelementptr inbounds i8, ptr %24, i64 16
  store <2 x ptr> %wide.load, ptr %24, align 8, !tbaa !13
  store <2 x ptr> %wide.load9, ptr %25, align 8, !tbaa !13
  %index.next = add nuw i64 %index, 4
  %26 = icmp eq i64 %index.next, %n.vec
  br i1 %26, label %middle.block, label %vector.body, !llvm.loop !16

middle.block:                                     ; preds = %vector.body
  %cmp.n = icmp eq i64 %n.vec, %wide.trip.count
  br i1 %cmp.n, label %._crit_edge.thread, label %scalar.ph.preheader

._crit_edge:                                      ; preds = %1
  %27 = icmp eq ptr %13, null
  br i1 %27, label %40, label %._crit_edge.thread

scalar.ph:                                        ; preds = %scalar.ph.prol.loopexit, %scalar.ph
  %indvars.iv = phi i64 [ %indvars.iv.next.3, %scalar.ph ], [ %indvars.iv.unr, %scalar.ph.prol.loopexit ]
  %28 = getelementptr inbounds ptr, ptr %13, i64 %indvars.iv
  %29 = load ptr, ptr %28, align 8, !tbaa !13
  %30 = getelementptr inbounds ptr, ptr %9, i64 %indvars.iv
  store ptr %29, ptr %30, align 8, !tbaa !13
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %31 = getelementptr inbounds ptr, ptr %13, i64 %indvars.iv.next
  %32 = load ptr, ptr %31, align 8, !tbaa !13
  %33 = getelementptr inbounds ptr, ptr %9, i64 %indvars.iv.next
  store ptr %32, ptr %33, align 8, !tbaa !13
  %indvars.iv.next.1 = add nuw nsw i64 %indvars.iv, 2
  %34 = getelementptr inbounds ptr, ptr %13, i64 %indvars.iv.next.1
  %35 = load ptr, ptr %34, align 8, !tbaa !13
  %36 = getelementptr inbounds ptr, ptr %9, i64 %indvars.iv.next.1
  store ptr %35, ptr %36, align 8, !tbaa !13
  %indvars.iv.next.2 = add nuw nsw i64 %indvars.iv, 3
  %37 = getelementptr inbounds ptr, ptr %13, i64 %indvars.iv.next.2
  %38 = load ptr, ptr %37, align 8, !tbaa !13
  %39 = getelementptr inbounds ptr, ptr %9, i64 %indvars.iv.next.2
  store ptr %38, ptr %39, align 8, !tbaa !13
  %indvars.iv.next.3 = add nuw nsw i64 %indvars.iv, 4
  %exitcond.not.3 = icmp eq i64 %indvars.iv.next.3, %wide.trip.count
  br i1 %exitcond.not.3, label %._crit_edge.thread, label %scalar.ph, !llvm.loop !20

._crit_edge.thread:                               ; preds = %scalar.ph.prol.loopexit, %scalar.ph, %middle.block, %._crit_edge
  tail call void @_ZdaPv(ptr noundef nonnull %13) #4
  br label %40

40:                                               ; preds = %._crit_edge.thread, %._crit_edge
  %41 = getelementptr inbounds i8, ptr %0, i64 8
  store ptr %9, ptr %41, align 8, !tbaa !12
  ret void
}

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) local_unnamed_addr #2

attributes #0 = { nobuiltin allocsize(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 = { mustprogress 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 = { nobuiltin 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 #3 = { builtin allocsize(0) }
attributes #4 = { builtin 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, !7, i64 4}
!6 = !{!"_ZTSN8mackAlgo8CellHeapE", !7, i64 0, !7, i64 4, !10, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !7, i64 0}
!12 = !{!6, !10, i64 8}
!13 = !{!10, !10, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.unroll.disable"}
!16 = distinct !{!16, !17, !18, !19}
!17 = !{!"llvm.loop.mustprogress"}
!18 = !{!"llvm.loop.isvectorized", i32 1}
!19 = !{!"llvm.loop.unroll.runtime.disable"}
!20 = distinct !{!20, !17, !18}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopLoadEliminationPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,LoopVectorizePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass