; LLVM IR from Dimandragon/non-parametric-dsp :: alglib-cpp/src (alglibinternal)

; 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_vector" = type { i64, i64, i8, %"struct.alglib_impl::ae_dyn_block", %union.anon }
%"struct.alglib_impl::ae_dyn_block" = type { ptr, ptr, ptr, ptr }
%union.anon = type { ptr }

; 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

declare noundef i64 @_ZN11alglib_impl23ae_unsafe_volatile_readEPKl(ptr noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN11alglib_impl18weakatomicwaitforvEPNS_9ae_vectorElllPNS_8ae_stateE(ptr noundef %0, i64 noundef %1, i64 noundef %2, i64 noundef %3, ptr noundef %4) #2 {
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i64, align 8
  %12 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store i64 %1, ptr %7, align 8, !tbaa !9
  store i64 %2, ptr %8, align 8, !tbaa !9
  store i64 %3, ptr %9, align 8, !tbaa !9
  store ptr %4, ptr %10, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #3
  store i64 0, ptr %11, align 8, !tbaa !9
  br label %13

13:                                               ; preds = %29, %5
  %14 = load i64, ptr %11, align 8, !tbaa !9
  %15 = load i64, ptr %9, align 8, !tbaa !9
  %16 = sub nsw i64 %15, 1
  %17 = icmp sle i64 %14, %16
  br i1 %17, label %18, label %32

18:                                               ; preds = %13
  %19 = load ptr, ptr %6, align 8, !tbaa !5
  %20 = getelementptr inbounds %"struct.alglib_impl::ae_vector", ptr %19, i32 0, i32 4
  %21 = load ptr, ptr %20, align 8, !tbaa !11
  %22 = load i64, ptr %7, align 8, !tbaa !9
  %23 = getelementptr inbounds i64, ptr %21, i64 %22
  %24 = call noundef i64 @_ZN11alglib_impl23ae_unsafe_volatile_readEPKl(ptr noundef %23)
  %25 = load i64, ptr %8, align 8, !tbaa !9
  %26 = icmp eq i64 %24, %25
  br i1 %26, label %27, label %28

27:                                               ; preds = %18
  store i32 1, ptr %12, align 4
  br label %33

28:                                               ; preds = %18
  br label %29

29:                                               ; preds = %28
  %30 = load i64, ptr %11, align 8, !tbaa !9
  %31 = add nsw i64 %30, 1
  store i64 %31, ptr %11, align 8, !tbaa !9
  br label %13, !llvm.loop !12

32:                                               ; preds = %13
  store i32 0, ptr %12, align 4
  br label %33

33:                                               ; preds = %32, %27
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #3
  %34 = load i32, ptr %12, align 4
  switch i32 %34, label %36 [
    i32 0, label %35
    i32 1, label %35
  ]

35:                                               ; preds = %33, %33
  ret void

36:                                               ; preds = %33
  unreachable
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #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 = { 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 #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 = !{!"long", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"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"

declare noundef i64 @_ZN11alglib_impl23ae_unsafe_volatile_readEPKl(ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN11alglib_impl18weakatomicwaitforvEPNS_9ae_vectorElllPNS_8ae_stateE(ptr nocapture noundef readonly %0, i64 noundef %1, i64 noundef %2, i64 noundef %3, ptr nocapture noundef readnone %4) local_unnamed_addr #1 {
  %6 = getelementptr inbounds i8, ptr %0, i64 56
  %.not.not5 = icmp sgt i64 %3, 0
  br i1 %.not.not5, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %5, %.lr.ph
  %.06 = phi i64 [ %11, %.lr.ph ], [ 0, %5 ]
  %7 = load ptr, ptr %6, align 8, !tbaa !5
  %8 = getelementptr inbounds i64, ptr %7, i64 %1
  %9 = tail call noundef i64 @_ZN11alglib_impl23ae_unsafe_volatile_readEPKl(ptr noundef %8)
  %10 = icmp eq i64 %9, %2
  %11 = add nuw nsw i64 %.06, 1
  %exitcond.not = icmp eq i64 %11, %3
  %or.cond = select i1 %10, i1 true, i1 %exitcond.not
  br i1 %or.cond, label %._crit_edge, label %.lr.ph, !llvm.loop !8

._crit_edge:                                      ; preds = %.lr.ph, %5
  ret void
}

attributes #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 = { 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, !6, i64 0}
!6 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}


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