; LLVM IR from ritikbanger/Hacktoberfest2022-DSA :: 06. Sorting/DYNAMIC_ACTIVITY_SELECTOR.ll (Z4sortPiii)

; 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"

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z4sortPiii(ptr noundef %0, i32 noundef %1, i32 noundef %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  store i32 %2, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #2
  store i32 1, ptr %8, align 4, !tbaa !9
  br label %10

10:                                               ; preds = %58, %3
  %11 = load i32, ptr %8, align 4, !tbaa !9
  %12 = load i32, ptr %6, align 4, !tbaa !9
  %13 = icmp slt i32 %11, %12
  br i1 %13, label %15, label %14

14:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #2
  br label %61

15:                                               ; preds = %10
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = load i32, ptr %8, align 4, !tbaa !9
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds i32, ptr %16, i64 %18
  %20 = load i32, ptr %19, align 4, !tbaa !9
  store i32 %20, ptr %7, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #2
  %21 = load i32, ptr %8, align 4, !tbaa !9
  %22 = sub nsw i32 %21, 1
  store i32 %22, ptr %9, align 4, !tbaa !9
  br label %23

23:                                               ; preds = %38, %15
  %24 = load i32, ptr %9, align 4, !tbaa !9
  %25 = load i32, ptr %5, align 4, !tbaa !9
  %26 = sub nsw i32 %25, 1
  %27 = icmp sge i32 %24, %26
  br i1 %27, label %28, label %36

28:                                               ; preds = %23
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  %30 = load i32, ptr %9, align 4, !tbaa !9
  %31 = sext i32 %30 to i64
  %32 = getelementptr inbounds i32, ptr %29, i64 %31
  %33 = load i32, ptr %32, align 4, !tbaa !9
  %34 = load i32, ptr %7, align 4, !tbaa !9
  %35 = icmp sgt i32 %33, %34
  br label %36

36:                                               ; preds = %28, %23
  %37 = phi i1 [ false, %23 ], [ %35, %28 ]
  br i1 %37, label %38, label %51

38:                                               ; preds = %36
  %39 = load ptr, ptr %4, align 8, !tbaa !5
  %40 = load i32, ptr %9, align 4, !tbaa !9
  %41 = sext i32 %40 to i64
  %42 = getelementptr inbounds i32, ptr %39, i64 %41
  %43 = load i32, ptr %42, align 4, !tbaa !9
  %44 = load ptr, ptr %4, align 8, !tbaa !5
  %45 = load i32, ptr %9, align 4, !tbaa !9
  %46 = add nsw i32 %45, 1
  %47 = sext i32 %46 to i64
  %48 = getelementptr inbounds i32, ptr %44, i64 %47
  store i32 %43, ptr %48, align 4, !tbaa !9
  %49 = load i32, ptr %9, align 4, !tbaa !9
  %50 = sub nsw i32 %49, 1
  store i32 %50, ptr %9, align 4, !tbaa !9
  br label %23, !llvm.loop !11

51:                                               ; preds = %36
  %52 = load i32, ptr %7, align 4, !tbaa !9
  %53 = load ptr, ptr %4, align 8, !tbaa !5
  %54 = load i32, ptr %9, align 4, !tbaa !9
  %55 = add nsw i32 %54, 1
  %56 = sext i32 %55 to i64
  %57 = getelementptr inbounds i32, ptr %53, i64 %56
  store i32 %52, ptr %57, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #2
  br label %58

58:                                               ; preds = %51
  %59 = load i32, ptr %8, align 4, !tbaa !9
  %60 = add nsw i32 %59, 1
  store i32 %60, ptr %8, align 4, !tbaa !9
  br label %10, !llvm.loop !13

61:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { mustprogress 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


; 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 nofree norecurse nosync nounwind memory(argmem: readwrite) uwtable
define dso_local void @_Z4sortPiii(ptr nocapture noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %invariant.gep = getelementptr i8, ptr %0, i64 4
  %4 = icmp sgt i32 %2, 1
  br i1 %4, label %.lr.ph26.preheader, label %._crit_edge

.lr.ph26.preheader:                               ; preds = %3
  %5 = sext i32 %1 to i64
  %6 = add i32 %1, -2
  %7 = add nsw i32 %2, -1
  %wide.trip.count = zext nneg i32 %7 to i64
  br label %.lr.ph26

._crit_edge:                                      ; preds = %.critedge, %3
  ret void

.lr.ph26:                                         ; preds = %.lr.ph26.preheader, %.critedge
  %indvars.iv30 = phi i64 [ 1, %.lr.ph26.preheader ], [ %indvars.iv.next31, %.critedge ]
  %indvars.iv = phi i64 [ 0, %.lr.ph26.preheader ], [ %indvars.iv.next, %.critedge ]
  %8 = getelementptr inbounds i32, ptr %0, i64 %indvars.iv30
  %9 = load i32, ptr %8, align 4, !tbaa !5
  %.not21 = icmp slt i64 %indvars.iv30, %5
  %10 = trunc i64 %indvars.iv30 to i32
  %11 = add i32 %10, -1
  br i1 %.not21, label %.critedge, label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph26, %15
  %indvars.iv27 = phi i64 [ %indvars.iv.next28, %15 ], [ %indvars.iv, %.lr.ph26 ]
  %12 = getelementptr inbounds i32, ptr %0, i64 %indvars.iv27
  %13 = load i32, ptr %12, align 4, !tbaa !5
  %14 = icmp sgt i32 %13, %9
  br i1 %14, label %15, label %.critedge.loopexit.split.loop.exit34

15:                                               ; preds = %.lr.ph
  %16 = getelementptr i8, ptr %12, i64 4
  store i32 %13, ptr %16, align 4, !tbaa !5
  %indvars.iv.next28 = add nsw i64 %indvars.iv27, -1
  %.not = icmp slt i64 %indvars.iv27, %5
  br i1 %.not, label %.critedge, label %.lr.ph, !llvm.loop !9

.critedge.loopexit.split.loop.exit34:             ; preds = %.lr.ph
  %17 = trunc nsw i64 %indvars.iv27 to i32
  br label %.critedge

.critedge:                                        ; preds = %15, %.critedge.loopexit.split.loop.exit34, %.lr.ph26
  %.0.lcssa = phi i32 [ %11, %.lr.ph26 ], [ %17, %.critedge.loopexit.split.loop.exit34 ], [ %6, %15 ]
  %18 = sext i32 %.0.lcssa to i64
  %gep = getelementptr i32, ptr %invariant.gep, i64 %18
  store i32 %9, ptr %gep, align 4, !tbaa !5
  %indvars.iv.next31 = add nuw nsw i64 %indvars.iv30, 1
  %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.ph26, !llvm.loop !11
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind memory(argmem: readwrite) 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" }

!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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


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