; LLVM IR from MakeContributions/DSA :: algorithms/CPlusPlus/Trees/min-heap.ll (ZN4Heap9growArrayEv)

; 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.Heap = type { i32, i32, ptr }

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) #0

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #1

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) #2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4Heap9growArrayEv(ptr noundef nonnull align 8 dereferenceable(16) %0) #3 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
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  %6 = getelementptr inbounds %class.Heap, ptr %5, i32 0, i32 1
  %7 = load i32, ptr %6, align 4, !tbaa !9
  %8 = mul nsw i32 %7, 2
  %9 = add nsw i32 %8, 1
  %10 = sext i32 %9 to i64
  %11 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %10, i64 4)
  %12 = extractvalue { i64, i1 } %11, 1
  %13 = extractvalue { i64, i1 } %11, 0
  %14 = select i1 %12, i64 -1, i64 %13
  %15 = call noalias noundef nonnull ptr @_Znam(i64 noundef %14) #6
  store ptr %15, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #5
  store i32 1, ptr %4, align 4, !tbaa !12
  br label %16

16:                                               ; preds = %33, %1
  %17 = load i32, ptr %4, align 4, !tbaa !12
  %18 = getelementptr inbounds %class.Heap, ptr %5, i32 0, i32 0
  %19 = load i32, ptr %18, align 8, !tbaa !13
  %20 = icmp sle i32 %17, %19
  br i1 %20, label %22, label %21

21:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  br label %36

22:                                               ; preds = %16
  %23 = getelementptr inbounds %class.Heap, ptr %5, i32 0, i32 2
  %24 = load ptr, ptr %23, align 8, !tbaa !14
  %25 = load i32, ptr %4, align 4, !tbaa !12
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds i32, ptr %24, i64 %26
  %28 = load i32, ptr %27, align 4, !tbaa !12
  %29 = load ptr, ptr %3, align 8, !tbaa !5
  %30 = load i32, ptr %4, align 4, !tbaa !12
  %31 = sext i32 %30 to i64
  %32 = getelementptr inbounds i32, ptr %29, i64 %31
  store i32 %28, ptr %32, align 4, !tbaa !12
  br label %33

33:                                               ; preds = %22
  %34 = load i32, ptr %4, align 4, !tbaa !12
  %35 = add nsw i32 %34, 1
  store i32 %35, ptr %4, align 4, !tbaa !12
  br label %16, !llvm.loop !15

36:                                               ; preds = %21
  %37 = getelementptr inbounds %class.Heap, ptr %5, i32 0, i32 1
  %38 = load i32, ptr %37, align 4, !tbaa !9
  %39 = mul nsw i32 %38, 2
  store i32 %39, ptr %37, align 4, !tbaa !9
  %40 = getelementptr inbounds %class.Heap, ptr %5, i32 0, i32 2
  %41 = load ptr, ptr %40, align 8, !tbaa !14
  %42 = icmp eq ptr %41, null
  br i1 %42, label %44, label %43

43:                                               ; preds = %36
  call void @_ZdaPv(ptr noundef %41) #7
  br label %44

44:                                               ; preds = %43, %36
  %45 = load ptr, ptr %3, align 8, !tbaa !5
  %46 = getelementptr inbounds %class.Heap, ptr %5, i32 0, i32 2
  store ptr %45, ptr %46, align 8, !tbaa !14
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #4

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { 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 #3 = { 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 #4 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"_ZTS4Heap", !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 nounwind
declare void @_ZdaPv(ptr noundef) local_unnamed_addr #0

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

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4Heap9growArrayEv(ptr nocapture noundef nonnull align 8 dereferenceable(16) %0) local_unnamed_addr #2 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
  %5 = or disjoint i32 %4, 1
  %6 = sext i32 %5 to i64
  %7 = icmp slt i32 %3, 0
  %8 = shl nsw i64 %6, 2
  %9 = select i1 %7, i64 -1, i64 %8
  %10 = tail call noalias noundef nonnull ptr @_Znam(i64 noundef %9) #3
  %11 = load i32, ptr %0, align 8, !tbaa !11
  %.not7 = icmp slt i32 %11, 1
  %.phi.trans.insert = getelementptr inbounds i8, ptr %0, i64 8
  %.pre = load ptr, ptr %.phi.trans.insert, align 8, !tbaa !12
  br i1 %.not7, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1
  %.pre11 = ptrtoint ptr %.pre to i64
  %12 = ptrtoint ptr %10 to i64
  %13 = add nuw i32 %11, 1
  %wide.trip.count = zext i32 %13 to i64
  %14 = zext nneg i32 %11 to i64
  %min.iters.check = icmp ult i32 %11, 8
  %15 = sub i64 %12, %.pre11
  %diff.check = icmp ult i64 %15, 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 [ 1, %.lr.ph ], [ %ind.end, %middle.block ]
  %16 = sub nsw i64 %wide.trip.count, %indvars.iv.ph
  %17 = zext nneg i32 %11 to i64
  %18 = sub nsw i64 %17, %indvars.iv.ph
  %xtraiter = and i64 %16, 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 ]
  %19 = getelementptr inbounds i32, ptr %.pre, i64 %indvars.iv.prol
  %20 = load i32, ptr %19, align 4, !tbaa !13
  %21 = getelementptr inbounds i32, ptr %10, i64 %indvars.iv.prol
  store i32 %20, ptr %21, align 4, !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 ]
  %22 = icmp ult i64 %18, 3
  br i1 %22, label %._crit_edge.thread, label %scalar.ph

vector.ph:                                        ; preds = %.lr.ph
  %n.vec = and i64 %14, 2147483640
  %ind.end = or disjoint i64 %n.vec, 1
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %offset.idx = or disjoint i64 %index, 1
  %23 = getelementptr inbounds i32, ptr %.pre, i64 %offset.idx
  %24 = getelementptr inbounds i8, ptr %23, i64 16
  %wide.load = load <4 x i32>, ptr %23, align 4, !tbaa !13
  %wide.load12 = load <4 x i32>, ptr %24, align 4, !tbaa !13
  %25 = getelementptr inbounds i32, ptr %10, i64 %offset.idx
  %26 = getelementptr inbounds i8, ptr %25, i64 16
  store <4 x i32> %wide.load, ptr %25, align 4, !tbaa !13
  store <4 x i32> %wide.load12, ptr %26, align 4, !tbaa !13
  %index.next = add nuw i64 %index, 8
  %27 = icmp eq i64 %index.next, %n.vec
  br i1 %27, label %middle.block, label %vector.body, !llvm.loop !16

middle.block:                                     ; preds = %vector.body
  %cmp.n = icmp eq i64 %n.vec, %14
  br i1 %cmp.n, label %._crit_edge.thread, label %scalar.ph.preheader

._crit_edge:                                      ; preds = %1
  store i32 %4, ptr %2, align 4, !tbaa !5
  %28 = icmp eq ptr %.pre, null
  br i1 %28, label %42, label %41

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 ]
  %29 = getelementptr inbounds i32, ptr %.pre, i64 %indvars.iv
  %30 = load i32, ptr %29, align 4, !tbaa !13
  %31 = getelementptr inbounds i32, ptr %10, i64 %indvars.iv
  store i32 %30, ptr %31, align 4, !tbaa !13
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %32 = getelementptr inbounds i32, ptr %.pre, i64 %indvars.iv.next
  %33 = load i32, ptr %32, align 4, !tbaa !13
  %34 = getelementptr inbounds i32, ptr %10, i64 %indvars.iv.next
  store i32 %33, ptr %34, align 4, !tbaa !13
  %indvars.iv.next.1 = add nuw nsw i64 %indvars.iv, 2
  %35 = getelementptr inbounds i32, ptr %.pre, i64 %indvars.iv.next.1
  %36 = load i32, ptr %35, align 4, !tbaa !13
  %37 = getelementptr inbounds i32, ptr %10, i64 %indvars.iv.next.1
  store i32 %36, ptr %37, align 4, !tbaa !13
  %indvars.iv.next.2 = add nuw nsw i64 %indvars.iv, 3
  %38 = getelementptr inbounds i32, ptr %.pre, i64 %indvars.iv.next.2
  %39 = load i32, ptr %38, align 4, !tbaa !13
  %40 = getelementptr inbounds i32, ptr %10, i64 %indvars.iv.next.2
  store i32 %39, ptr %40, align 4, !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
  store i32 %4, ptr %2, align 4, !tbaa !5
  br label %41

41:                                               ; preds = %._crit_edge.thread, %._crit_edge
  tail call void @_ZdaPv(ptr noundef nonnull %.pre) #4
  br label %42

42:                                               ; preds = %41, %._crit_edge
  %43 = getelementptr inbounds i8, ptr %0, i64 8
  store ptr %10, ptr %43, align 8, !tbaa !12
  ret void
}

attributes #0 = { 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 #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 = { 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 = !{!"_ZTS4Heap", !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 = !{!7, !7, 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