; LLVM IR from devparthgarg/Data-Structures-and-Algorithms :: 07. Sorting/14 Hoare Partition/14a Hoare Partition.ll (Z13hoareParitionPiii)

; 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 noundef i32 @_Z13hoareParitionPiii(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) #3
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = load i32, ptr %5, align 4, !tbaa !9
  %12 = sext i32 %11 to i64
  %13 = getelementptr inbounds i32, ptr %10, i64 %12
  %14 = load i32, ptr %13, align 4, !tbaa !9
  store i32 %14, ptr %7, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  %15 = load i32, ptr %5, align 4, !tbaa !9
  %16 = sub nsw i32 %15, 1
  store i32 %16, ptr %8, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  %17 = load i32, ptr %6, align 4, !tbaa !9
  %18 = add nsw i32 %17, 1
  store i32 %18, ptr %9, align 4, !tbaa !9
  br label %19

19:                                               ; preds = %50, %3
  br label %20

20:                                               ; preds = %19
  br label %21

21:                                               ; preds = %24, %20
  %22 = load i32, ptr %8, align 4, !tbaa !9
  %23 = add nsw i32 %22, 1
  store i32 %23, ptr %8, align 4, !tbaa !9
  br label %24

24:                                               ; preds = %21
  %25 = load ptr, ptr %4, align 8, !tbaa !5
  %26 = load i32, ptr %8, align 4, !tbaa !9
  %27 = sext i32 %26 to i64
  %28 = getelementptr inbounds i32, ptr %25, i64 %27
  %29 = load i32, ptr %28, align 4, !tbaa !9
  %30 = load i32, ptr %7, align 4, !tbaa !9
  %31 = icmp slt i32 %29, %30
  br i1 %31, label %21, label %32, !llvm.loop !11

32:                                               ; preds = %24
  br label %33

33:                                               ; preds = %36, %32
  %34 = load i32, ptr %9, align 4, !tbaa !9
  %35 = add nsw i32 %34, -1
  store i32 %35, ptr %9, align 4, !tbaa !9
  br label %36

36:                                               ; preds = %33
  %37 = load ptr, ptr %4, align 8, !tbaa !5
  %38 = load i32, ptr %9, align 4, !tbaa !9
  %39 = sext i32 %38 to i64
  %40 = getelementptr inbounds i32, ptr %37, i64 %39
  %41 = load i32, ptr %40, align 4, !tbaa !9
  %42 = load i32, ptr %7, align 4, !tbaa !9
  %43 = icmp sgt i32 %41, %42
  br i1 %43, label %33, label %44, !llvm.loop !13

44:                                               ; preds = %36
  %45 = load i32, ptr %8, align 4, !tbaa !9
  %46 = load i32, ptr %9, align 4, !tbaa !9
  %47 = icmp sge i32 %45, %46
  br i1 %47, label %48, label %50

48:                                               ; preds = %44
  %49 = load i32, ptr %9, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  ret i32 %49

50:                                               ; preds = %44
  %51 = load ptr, ptr %4, align 8, !tbaa !5
  %52 = load i32, ptr %8, align 4, !tbaa !9
  %53 = sext i32 %52 to i64
  %54 = getelementptr inbounds i32, ptr %51, i64 %53
  %55 = load ptr, ptr %4, align 8, !tbaa !5
  %56 = load i32, ptr %9, align 4, !tbaa !9
  %57 = sext i32 %56 to i64
  %58 = getelementptr inbounds i32, ptr %55, i64 %57
  call void @_ZSt4swapIiENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS3_ESt18is_move_assignableIS3_EEE5valueEvE4typeERS3_SC_(ptr noundef nonnull align 4 dereferenceable(4) %54, ptr noundef nonnull align 4 dereferenceable(4) %58) #3
  br label %19, !llvm.loop !14
}

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZSt4swapIiENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS3_ESt18is_move_assignableIS3_EEE5valueEvE4typeERS3_SC_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #2

; 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 = { inlinehint 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 #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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !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 nounwind uwtable
define dso_local noundef range(i32 -2147483648, 2147483647) i32 @_Z13hoareParitionPiii(ptr noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = sext i32 %1 to i64
  %5 = getelementptr inbounds i32, ptr %0, i64 %4
  %6 = load i32, ptr %5, align 4, !tbaa !5
  %7 = add nsw i32 %1, -1
  %8 = add nsw i32 %2, 1
  br label %9

9:                                                ; preds = %25, %3
  %.018 = phi i32 [ %7, %3 ], [ %16, %25 ]
  %.0 = phi i32 [ %8, %3 ], [ %23, %25 ]
  %10 = sext i32 %.018 to i64
  br label %11

11:                                               ; preds = %11, %9
  %indvars.iv = phi i64 [ %indvars.iv.next, %11 ], [ %10, %9 ]
  %indvars.iv.next = add nsw i64 %indvars.iv, 1
  %12 = getelementptr inbounds i32, ptr %0, i64 %indvars.iv.next
  %13 = load i32, ptr %12, align 4, !tbaa !5
  %14 = icmp slt i32 %13, %6
  br i1 %14, label %11, label %.preheader, !llvm.loop !9

.preheader:                                       ; preds = %11
  %15 = getelementptr inbounds i32, ptr %0, i64 %indvars.iv.next
  %16 = trunc nsw i64 %indvars.iv.next to i32
  %17 = sext i32 %.0 to i64
  br label %18

18:                                               ; preds = %.preheader, %18
  %indvars.iv31 = phi i64 [ %17, %.preheader ], [ %indvars.iv.next32, %18 ]
  %indvars.iv.next32 = add nsw i64 %indvars.iv31, -1
  %19 = getelementptr inbounds i32, ptr %0, i64 %indvars.iv.next32
  %20 = load i32, ptr %19, align 4, !tbaa !5
  %21 = icmp sgt i32 %20, %6
  br i1 %21, label %18, label %22, !llvm.loop !11

22:                                               ; preds = %18
  %23 = trunc nsw i64 %indvars.iv.next32 to i32
  %.not = icmp slt i64 %indvars.iv.next, %indvars.iv.next32
  br i1 %.not, label %25, label %24

24:                                               ; preds = %22
  ret i32 %23

25:                                               ; preds = %22
  %26 = getelementptr inbounds i32, ptr %0, i64 %indvars.iv.next32
  tail call void @_ZSt4swapIiENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS3_ESt18is_move_assignableIS3_EEE5valueEvE4typeERS3_SC_(ptr noundef nonnull align 4 dereferenceable(4) %15, ptr noundef nonnull align 4 dereferenceable(4) %26) #2
  br label %9, !llvm.loop !12
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZSt4swapIiENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS3_ESt18is_move_assignableIS3_EEE5valueEvE4typeERS3_SC_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #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 = { inlinehint 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 #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 = !{!"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}
!12 = distinct !{!12, !10}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LICMPass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass