; LLVM IR from Mithreindeir/VelocityRaptor :: VelocityRaptor/src (vrArray)

; 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.vrArray = type { ptr, i32, i32, 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: nounwind allocsize(1)
declare ptr @realloc(ptr noundef, i64 noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local void @vrArrayCopy(ptr noundef %0, ptr noundef %1) #2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.vrArray, ptr %6, i32 0, i32 0
  %8 = load ptr, ptr %7, align 8, !tbaa !9
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.vrArray, ptr %9, i32 0, i32 2
  %11 = load i32, ptr %10, align 4, !tbaa !12
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.vrArray, ptr %12, i32 0, i32 3
  %14 = load i32, ptr %13, align 8, !tbaa !13
  %15 = mul nsw i32 %11, %14
  %16 = sext i32 %15 to i64
  %17 = call ptr @realloc(ptr noundef %8, i64 noundef %16) #3
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.vrArray, ptr %18, i32 0, i32 0
  store ptr %17, ptr %19, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  store i32 0, ptr %5, align 4, !tbaa !14
  br label %20

20:                                               ; preds = %41, %2
  %21 = load i32, ptr %5, align 4, !tbaa !14
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.vrArray, ptr %22, i32 0, i32 3
  %24 = load i32, ptr %23, align 8, !tbaa !13
  %25 = icmp slt i32 %21, %24
  br i1 %25, label %27, label %26

26:                                               ; preds = %20
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  br label %44

27:                                               ; preds = %20
  %28 = load ptr, ptr %4, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.vrArray, ptr %28, i32 0, i32 0
  %30 = load ptr, ptr %29, align 8, !tbaa !9
  %31 = load i32, ptr %5, align 4, !tbaa !14
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds ptr, ptr %30, i64 %32
  %34 = load ptr, ptr %33, align 8, !tbaa !5
  %35 = load ptr, ptr %3, align 8, !tbaa !5
  %36 = getelementptr inbounds %struct.vrArray, ptr %35, i32 0, i32 0
  %37 = load ptr, ptr %36, align 8, !tbaa !9
  %38 = load i32, ptr %5, align 4, !tbaa !14
  %39 = sext i32 %38 to i64
  %40 = getelementptr inbounds ptr, ptr %37, i64 %39
  store ptr %34, ptr %40, align 8, !tbaa !5
  br label %41

41:                                               ; preds = %27
  %42 = load i32, ptr %5, align 4, !tbaa !14
  %43 = add nsw i32 %42, 1
  store i32 %43, ptr %5, align 4, !tbaa !14
  br label %20, !llvm.loop !15

44:                                               ; preds = %26
  %45 = load ptr, ptr %4, align 8, !tbaa !5
  %46 = getelementptr inbounds %struct.vrArray, ptr %45, i32 0, i32 1
  %47 = load i32, ptr %46, align 8, !tbaa !17
  %48 = load ptr, ptr %3, align 8, !tbaa !5
  %49 = getelementptr inbounds %struct.vrArray, ptr %48, i32 0, i32 1
  store i32 %47, ptr %49, align 8, !tbaa !17
  %50 = load ptr, ptr %4, align 8, !tbaa !5
  %51 = getelementptr inbounds %struct.vrArray, ptr %50, i32 0, i32 3
  %52 = load i32, ptr %51, align 8, !tbaa !13
  %53 = load ptr, ptr %3, align 8, !tbaa !5
  %54 = getelementptr inbounds %struct.vrArray, ptr %53, i32 0, i32 3
  store i32 %52, ptr %54, align 8, !tbaa !13
  %55 = load ptr, ptr %4, align 8, !tbaa !5
  %56 = getelementptr inbounds %struct.vrArray, ptr %55, i32 0, i32 2
  %57 = load i32, ptr %56, align 4, !tbaa !12
  %58 = load ptr, ptr %3, align 8, !tbaa !5
  %59 = getelementptr inbounds %struct.vrArray, ptr %58, i32 0, i32 2
  store i32 %57, ptr %59, align 4, !tbaa !12
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nounwind allocsize(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 allocsize(1) }
attributes #4 = { 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 = !{!"vrArray", !6, i64 0, !11, i64 8, !11, i64 12, !11, i64 16, !11, i64 20}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !11, i64 12}
!13 = !{!10, !11, i64 16}
!14 = !{!11, !11, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}
!17 = !{!10, !11, i64 8}


; 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("realloc") allocsize(1) memory(argmem: readwrite, inaccessiblemem: readwrite)
declare noalias noundef ptr @realloc(ptr allocptr nocapture noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @vrArrayCopy(ptr nocapture noundef %0, ptr nocapture noundef readonly %1) local_unnamed_addr #1 {
  %3 = load ptr, ptr %0, align 8, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %1, i64 12
  %5 = load i32, ptr %4, align 4, !tbaa !11
  %6 = getelementptr inbounds i8, ptr %1, i64 16
  %7 = load i32, ptr %6, align 8, !tbaa !12
  %8 = mul nsw i32 %7, %5
  %9 = sext i32 %8 to i64
  %10 = tail call ptr @realloc(ptr noundef %3, i64 noundef %9) #2
  store ptr %10, ptr %0, align 8, !tbaa !5
  %11 = load i32, ptr %6, align 8, !tbaa !12
  %12 = icmp sgt i32 %11, 0
  br i1 %12, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %2
  %wide.trip.count = zext nneg i32 %11 to i64
  %xtraiter = and i64 %wide.trip.count, 3
  %13 = icmp ult i32 %11, 4
  br i1 %13, label %._crit_edge.loopexit.unr-lcssa, label %.lr.ph.preheader.new

.lr.ph.preheader.new:                             ; preds = %.lr.ph.preheader
  %unroll_iter = and i64 %wide.trip.count, 2147483644
  br label %.lr.ph

._crit_edge.loopexit.unr-lcssa:                   ; preds = %.lr.ph, %.lr.ph.preheader
  %indvars.iv.unr = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next.3, %.lr.ph ]
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %._crit_edge, label %.lr.ph.epil

.lr.ph.epil:                                      ; preds = %._crit_edge.loopexit.unr-lcssa, %.lr.ph.epil
  %indvars.iv.epil = phi i64 [ %indvars.iv.next.epil, %.lr.ph.epil ], [ %indvars.iv.unr, %._crit_edge.loopexit.unr-lcssa ]
  %epil.iter = phi i64 [ %epil.iter.next, %.lr.ph.epil ], [ 0, %._crit_edge.loopexit.unr-lcssa ]
  %14 = load ptr, ptr %1, align 8, !tbaa !5
  %15 = getelementptr inbounds ptr, ptr %14, i64 %indvars.iv.epil
  %16 = load ptr, ptr %15, align 8, !tbaa !13
  %17 = load ptr, ptr %0, align 8, !tbaa !5
  %18 = getelementptr inbounds ptr, ptr %17, i64 %indvars.iv.epil
  store ptr %16, ptr %18, align 8, !tbaa !13
  %indvars.iv.next.epil = add nuw nsw i64 %indvars.iv.epil, 1
  %epil.iter.next = add i64 %epil.iter, 1
  %epil.iter.cmp.not = icmp eq i64 %epil.iter.next, %xtraiter
  br i1 %epil.iter.cmp.not, label %._crit_edge, label %.lr.ph.epil, !llvm.loop !14

._crit_edge:                                      ; preds = %._crit_edge.loopexit.unr-lcssa, %.lr.ph.epil, %2
  %19 = getelementptr inbounds i8, ptr %1, i64 8
  %20 = getelementptr inbounds i8, ptr %0, i64 8
  %21 = getelementptr inbounds i8, ptr %0, i64 16
  store i32 %11, ptr %21, align 8, !tbaa !12
  %22 = load <2 x i32>, ptr %19, align 8, !tbaa !16
  store <2 x i32> %22, ptr %20, align 8, !tbaa !16
  ret void

.lr.ph:                                           ; preds = %.lr.ph, %.lr.ph.preheader.new
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader.new ], [ %indvars.iv.next.3, %.lr.ph ]
  %niter = phi i64 [ 0, %.lr.ph.preheader.new ], [ %niter.next.3, %.lr.ph ]
  %23 = load ptr, ptr %1, align 8, !tbaa !5
  %24 = getelementptr inbounds ptr, ptr %23, i64 %indvars.iv
  %25 = load ptr, ptr %24, align 8, !tbaa !13
  %26 = load ptr, ptr %0, align 8, !tbaa !5
  %27 = getelementptr inbounds ptr, ptr %26, i64 %indvars.iv
  store ptr %25, ptr %27, align 8, !tbaa !13
  %indvars.iv.next = or disjoint i64 %indvars.iv, 1
  %28 = load ptr, ptr %1, align 8, !tbaa !5
  %29 = getelementptr inbounds ptr, ptr %28, i64 %indvars.iv.next
  %30 = load ptr, ptr %29, align 8, !tbaa !13
  %31 = load ptr, ptr %0, align 8, !tbaa !5
  %32 = getelementptr inbounds ptr, ptr %31, i64 %indvars.iv.next
  store ptr %30, ptr %32, align 8, !tbaa !13
  %indvars.iv.next.1 = or disjoint i64 %indvars.iv, 2
  %33 = load ptr, ptr %1, align 8, !tbaa !5
  %34 = getelementptr inbounds ptr, ptr %33, i64 %indvars.iv.next.1
  %35 = load ptr, ptr %34, align 8, !tbaa !13
  %36 = load ptr, ptr %0, align 8, !tbaa !5
  %37 = getelementptr inbounds ptr, ptr %36, i64 %indvars.iv.next.1
  store ptr %35, ptr %37, align 8, !tbaa !13
  %indvars.iv.next.2 = or disjoint i64 %indvars.iv, 3
  %38 = load ptr, ptr %1, align 8, !tbaa !5
  %39 = getelementptr inbounds ptr, ptr %38, i64 %indvars.iv.next.2
  %40 = load ptr, ptr %39, align 8, !tbaa !13
  %41 = load ptr, ptr %0, align 8, !tbaa !5
  %42 = getelementptr inbounds ptr, ptr %41, i64 %indvars.iv.next.2
  store ptr %40, ptr %42, align 8, !tbaa !13
  %indvars.iv.next.3 = add nuw nsw i64 %indvars.iv, 4
  %niter.next.3 = add i64 %niter, 4
  %niter.ncmp.3 = icmp eq i64 %niter.next.3, %unroll_iter
  br i1 %niter.ncmp.3, label %._crit_edge.loopexit.unr-lcssa, label %.lr.ph, !llvm.loop !17
}

attributes #0 = { mustprogress nounwind willreturn allockind("realloc") allocsize(1) 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 allocsize(1) }

!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 0}
!6 = !{!"vrArray", !7, i64 0, !10, i64 8, !10, i64 12, !10, i64 16, !10, i64 20}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !10, i64 12}
!12 = !{!6, !10, i64 16}
!13 = !{!7, !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.unroll.disable"}
!16 = !{!10, !10, i64 0}
!17 = distinct !{!17, !18}
!18 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SLPVectorizerPass,SROAPass,SimplifyCFGPass,TailCallElimPass