; LLVM IR from siconos/siconos :: externals/sort/test (benchmark)

; 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: 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: nounwind uwtable
define dso_local void @sorter_heap_sort(ptr noundef %0, i64 noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i64 %1, ptr %4, align 8, !tbaa !9
  %7 = load i64, ptr %4, align 8, !tbaa !9
  %8 = icmp ule i64 %7, 1
  br i1 %8, label %9, label %10

9:                                                ; preds = %2
  br label %38

10:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %11 = load i64, ptr %4, align 8, !tbaa !9
  %12 = sub i64 %11, 1
  store i64 %12, ptr %5, align 8, !tbaa !9
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = load i64, ptr %4, align 8, !tbaa !9
  call void @sorter_heapify(ptr noundef %13, i64 noundef %14)
  br label %15

15:                                               ; preds = %18, %10
  %16 = load i64, ptr %5, align 8, !tbaa !9
  %17 = icmp ugt i64 %16, 0
  br i1 %17, label %18, label %37

18:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = load i64, ptr %5, align 8, !tbaa !9
  %21 = getelementptr inbounds i64, ptr %19, i64 %20
  %22 = load i64, ptr %21, align 8, !tbaa !9
  store i64 %22, ptr %6, align 8, !tbaa !9
  %23 = load ptr, ptr %3, align 8, !tbaa !5
  %24 = getelementptr inbounds i64, ptr %23, i64 0
  %25 = load i64, ptr %24, align 8, !tbaa !9
  %26 = load ptr, ptr %3, align 8, !tbaa !5
  %27 = load i64, ptr %5, align 8, !tbaa !9
  %28 = getelementptr inbounds i64, ptr %26, i64 %27
  store i64 %25, ptr %28, align 8, !tbaa !9
  %29 = load i64, ptr %6, align 8, !tbaa !9
  %30 = load ptr, ptr %3, align 8, !tbaa !5
  %31 = getelementptr inbounds i64, ptr %30, i64 0
  store i64 %29, ptr %31, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  %32 = load ptr, ptr %3, align 8, !tbaa !5
  %33 = load i64, ptr %5, align 8, !tbaa !9
  %34 = sub i64 %33, 1
  call void @sorter_heap_sift_down(ptr noundef %32, i64 noundef 0, i64 noundef %34)
  %35 = load i64, ptr %5, align 8, !tbaa !9
  %36 = add i64 %35, -1
  store i64 %36, ptr %5, align 8, !tbaa !9
  br label %15, !llvm.loop !11

37:                                               ; preds = %15
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  br label %38

38:                                               ; preds = %37, %9
  ret void
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @sorter_heapify(ptr noundef, i64 noundef) #2

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @sorter_heap_sift_down(ptr noundef, i64 noundef, i64 noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { inlinehint 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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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: nounwind uwtable
define dso_local void @sorter_heap_sort(ptr noundef %0, i64 noundef %1) local_unnamed_addr #0 {
  %3 = icmp ult i64 %1, 2
  br i1 %3, label %.loopexit, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %2
  tail call void @sorter_heapify(ptr noundef %0, i64 noundef %1)
  %.015 = add i64 %1, -1
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.preheader, %.lr.ph
  %.018 = phi i64 [ %.0, %.lr.ph ], [ %.015, %.lr.ph.preheader ]
  %.0.in17 = phi i64 [ %.018, %.lr.ph ], [ %1, %.lr.ph.preheader ]
  %4 = getelementptr inbounds i64, ptr %0, i64 %.018
  %5 = load i64, ptr %4, align 8, !tbaa !5
  %6 = load i64, ptr %0, align 8, !tbaa !5
  store i64 %6, ptr %4, align 8, !tbaa !5
  store i64 %5, ptr %0, align 8, !tbaa !5
  %7 = add i64 %.0.in17, -2
  tail call void @sorter_heap_sift_down(ptr noundef nonnull %0, i64 noundef 0, i64 noundef %7)
  %.0 = add i64 %.018, -1
  %.not = icmp eq i64 %.0, 0
  br i1 %.not, label %.loopexit, label %.lr.ph, !llvm.loop !9

.loopexit:                                        ; preds = %.lr.ph, %2
  ret void
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @sorter_heapify(ptr noundef, i64 noundef) local_unnamed_addr #1

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @sorter_heap_sift_down(ptr noundef, i64 noundef, i64 noundef) local_unnamed_addr #1

attributes #0 = { 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 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" }

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


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass