; LLVM IR from Dimandragon/non-parametric-dsp :: alglib-cpp/src/ap.ll (ZN11alglib_impl15ae_nxpool_allocEPNS_9ae_nxpoolElPNS_8ae_stateE)

; 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.alglib_impl::ae_nxpool" = type { i64, i64, i64, i64, %"struct.alglib_impl::ae_dyn_block", %"struct.alglib_impl::ae_lock", %"struct.alglib_impl::ae_dyn_block" }
%"struct.alglib_impl::ae_lock" = type { ptr, %"struct.alglib_impl::ae_dyn_block", i8 }
%"struct.alglib_impl::ae_dyn_block" = type { ptr, ptr, ptr, ptr }

@.str.47 = external hidden unnamed_addr constant [24 x i8], align 1

; 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: mustprogress uwtable
declare dso_local void @_ZN11alglib_impl9ae_assertEbPKcPNS_8ae_stateE(i1 noundef zeroext, ptr noundef, ptr noundef) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN11alglib_impl10ae_db_freeEPNS_12ae_dyn_blockE(ptr noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN11alglib_impl15ae_nxpool_allocEPNS_9ae_nxpoolElPNS_8ae_stateE(ptr noundef %0, i64 noundef %1, ptr noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i64 %1, ptr %5, align 8, !tbaa !9
  store ptr %2, ptr %6, align 8, !tbaa !5
  %8 = load i64, ptr %5, align 8, !tbaa !9
  %9 = icmp sge i64 %8, 0
  %10 = load ptr, ptr %6, align 8, !tbaa !5
  call void @_ZN11alglib_impl9ae_assertEbPKcPNS_8ae_stateE(i1 noundef zeroext %9, ptr noundef @.str.47, ptr noundef %10)
  %11 = load i64, ptr %5, align 8, !tbaa !9
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = getelementptr inbounds %"struct.alglib_impl::ae_nxpool", ptr %12, i32 0, i32 1
  %14 = load i64, ptr %13, align 8, !tbaa !11
  %15 = icmp eq i64 %11, %14
  br i1 %15, label %16, label %17

16:                                               ; preds = %3
  br label %41

17:                                               ; preds = %3
  %18 = load i64, ptr %5, align 8, !tbaa !9
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = getelementptr inbounds %"struct.alglib_impl::ae_nxpool", ptr %19, i32 0, i32 1
  store i64 %18, ptr %20, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #2
  store i64 0, ptr %7, align 8, !tbaa !9
  br label %21

21:                                               ; preds = %35, %17
  %22 = load i64, ptr %7, align 8, !tbaa !9
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = getelementptr inbounds %"struct.alglib_impl::ae_nxpool", ptr %23, i32 0, i32 3
  %25 = load i64, ptr %24, align 8, !tbaa !16
  %26 = icmp slt i64 %22, %25
  br i1 %26, label %28, label %27

27:                                               ; preds = %21
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #2
  br label %38

28:                                               ; preds = %21
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  %30 = getelementptr inbounds %"struct.alglib_impl::ae_nxpool", ptr %29, i32 0, i32 4
  %31 = getelementptr inbounds %"struct.alglib_impl::ae_dyn_block", ptr %30, i32 0, i32 2
  %32 = load volatile ptr, ptr %31, align 8, !tbaa !17
  %33 = load i64, ptr %7, align 8, !tbaa !9
  %34 = getelementptr inbounds %"struct.alglib_impl::ae_dyn_block", ptr %32, i64 %33
  call void @_ZN11alglib_impl10ae_db_freeEPNS_12ae_dyn_blockE(ptr noundef %34)
  br label %35

35:                                               ; preds = %28
  %36 = load i64, ptr %7, align 8, !tbaa !9
  %37 = add nsw i64 %36, 1
  store i64 %37, ptr %7, align 8, !tbaa !9
  br label %21, !llvm.loop !18

38:                                               ; preds = %27
  %39 = load ptr, ptr %4, align 8, !tbaa !5
  %40 = getelementptr inbounds %"struct.alglib_impl::ae_nxpool", ptr %39, i32 0, i32 3
  store i64 0, ptr %40, align 8, !tbaa !16
  br label %41

41:                                               ; preds = %38, %16
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = !{!"long", !7, i64 0}
!11 = !{!12, !10, i64 8}
!12 = !{!"_ZTSN11alglib_impl9ae_nxpoolE", !10, i64 0, !10, i64 8, !10, i64 16, !10, i64 24, !13, i64 32, !14, i64 64, !13, i64 112}
!13 = !{!"_ZTSN11alglib_impl12ae_dyn_blockE", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24}
!14 = !{!"_ZTSN11alglib_impl7ae_lockE", !6, i64 0, !13, i64 8, !15, i64 40}
!15 = !{!"bool", !7, i64 0}
!16 = !{!12, !10, i64 24}
!17 = !{!12, !6, i64 48}
!18 = distinct !{!18, !19}
!19 = !{!"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"

%"struct.alglib_impl::ae_dyn_block" = type { ptr, ptr, ptr, ptr }

@.str.47 = external hidden unnamed_addr constant [24 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN11alglib_impl9ae_assertEbPKcPNS_8ae_stateE(i1 noundef zeroext, ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN11alglib_impl10ae_db_freeEPNS_12ae_dyn_blockE(ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN11alglib_impl15ae_nxpool_allocEPNS_9ae_nxpoolElPNS_8ae_stateE(ptr noundef %0, i64 noundef %1, ptr noundef %2) local_unnamed_addr #0 {
  %4 = icmp sgt i64 %1, -1
  tail call void @_ZN11alglib_impl9ae_assertEbPKcPNS_8ae_stateE(i1 noundef zeroext %4, ptr noundef nonnull @.str.47, ptr noundef %2)
  %5 = getelementptr inbounds i8, ptr %0, i64 8
  %6 = load i64, ptr %5, align 8, !tbaa !5
  %7 = icmp eq i64 %6, %1
  br i1 %7, label %19, label %8

8:                                                ; preds = %3
  store i64 %1, ptr %5, align 8, !tbaa !5
  %9 = getelementptr inbounds i8, ptr %0, i64 24
  %10 = load i64, ptr %9, align 8, !tbaa !14
  %11 = icmp sgt i64 %10, 0
  br i1 %11, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %8
  %12 = getelementptr inbounds i8, ptr %0, i64 48
  br label %13

._crit_edge:                                      ; preds = %13, %8
  store i64 0, ptr %9, align 8, !tbaa !14
  br label %19

13:                                               ; preds = %.lr.ph, %13
  %.012 = phi i64 [ 0, %.lr.ph ], [ %16, %13 ]
  %14 = load volatile ptr, ptr %12, align 8, !tbaa !15
  %15 = getelementptr inbounds %"struct.alglib_impl::ae_dyn_block", ptr %14, i64 %.012
  tail call void @_ZN11alglib_impl10ae_db_freeEPNS_12ae_dyn_blockE(ptr noundef %15)
  %16 = add nuw nsw i64 %.012, 1
  %17 = load i64, ptr %9, align 8, !tbaa !14
  %18 = icmp slt i64 %16, %17
  br i1 %18, label %13, label %._crit_edge, !llvm.loop !16

19:                                               ; preds = %3, %._crit_edge
  ret void
}

attributes #0 = { 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" }

!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 8}
!6 = !{!"_ZTSN11alglib_impl9ae_nxpoolE", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !10, i64 32, !12, i64 64, !10, i64 112}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"_ZTSN11alglib_impl12ae_dyn_blockE", !11, i64 0, !11, i64 8, !11, i64 16, !11, i64 24}
!11 = !{!"any pointer", !8, i64 0}
!12 = !{!"_ZTSN11alglib_impl7ae_lockE", !11, i64 0, !10, i64 8, !13, i64 40}
!13 = !{!"bool", !8, i64 0}
!14 = !{!6, !7, i64 24}
!15 = !{!6, !11, i64 48}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}


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