; LLVM IR from erwincoumans/tiny-differentiable-simulator :: third_party/zeromq/src/dist.ll (ZN3zmq6dist_t9check_hwmEv)

; 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"

%"class.zmq::dist_t" = type <{ %"class.zmq::array_t", i64, i64, i64, i8, [7 x i8] }>
%"class.zmq::array_t" = type { %"class.std::vector" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<zmq::pipe_t *, std::allocator<zmq::pipe_t *>>::_Vector_impl" }
%"struct.std::_Vector_base<zmq::pipe_t *, std::allocator<zmq::pipe_t *>>::_Vector_impl" = type { %"struct.std::_Vector_base<zmq::pipe_t *, std::allocator<zmq::pipe_t *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<zmq::pipe_t *, std::allocator<zmq::pipe_t *>>::_Vector_impl_data" = type { ptr, ptr, 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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN3zmq7array_tINS_6pipe_tELi2EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN3zmq6dist_t9check_hwmEv(ptr noundef nonnull align 8 dereferenceable(49) %0) #2 align 2 {
  %2 = alloca i1, align 1
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  %6 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  store i64 0, ptr %4, align 8, !tbaa !9
  br label %7

7:                                                ; preds = %21, %1
  %8 = load i64, ptr %4, align 8, !tbaa !9
  %9 = getelementptr inbounds %"class.zmq::dist_t", ptr %6, i32 0, i32 1
  %10 = load i64, ptr %9, align 8, !tbaa !11
  %11 = icmp ult i64 %8, %10
  br i1 %11, label %13, label %12

12:                                               ; preds = %7
  store i32 2, ptr %5, align 4
  br label %24

13:                                               ; preds = %7
  %14 = getelementptr inbounds %"class.zmq::dist_t", ptr %6, i32 0, i32 0
  %15 = load i64, ptr %4, align 8, !tbaa !9
  %16 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN3zmq7array_tINS_6pipe_tELi2EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %14, i64 noundef %15)
  %17 = load ptr, ptr %16, align 8, !tbaa !5
  %18 = call noundef zeroext i1 @_ZNK3zmq6pipe_t9check_hwmEv(ptr noundef nonnull align 8 dereferenceable(264) %17)
  br i1 %18, label %20, label %19

19:                                               ; preds = %13
  store i1 false, ptr %2, align 1
  store i32 1, ptr %5, align 4
  br label %24

20:                                               ; preds = %13
  br label %21

21:                                               ; preds = %20
  %22 = load i64, ptr %4, align 8, !tbaa !9
  %23 = add i64 %22, 1
  store i64 %23, ptr %4, align 8, !tbaa !9
  br label %7, !llvm.loop !19

24:                                               ; preds = %19, %12
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  %25 = load i32, ptr %5, align 4
  switch i32 %25, label %29 [
    i32 2, label %26
    i32 1, label %27
  ]

26:                                               ; preds = %24
  store i1 true, ptr %2, align 1
  br label %27

27:                                               ; preds = %26, %24
  %28 = load i1, ptr %2, align 1
  ret i1 %28

29:                                               ; preds = %24
  unreachable
}

declare noundef zeroext i1 @_ZNK3zmq6pipe_t9check_hwmEv(ptr noundef nonnull align 8 dereferenceable(264)) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 = { "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 #4 = { 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 24}
!12 = !{!"_ZTSN3zmq6dist_tE", !13, i64 0, !10, i64 24, !10, i64 32, !10, i64 40, !18, i64 48}
!13 = !{!"_ZTSN3zmq7array_tINS_6pipe_tELi2EEE", !14, i64 0}
!14 = !{!"_ZTSSt6vectorIPN3zmq6pipe_tESaIS2_EE", !15, i64 0}
!15 = !{!"_ZTSSt12_Vector_baseIPN3zmq6pipe_tESaIS2_EE", !16, i64 0}
!16 = !{!"_ZTSNSt12_Vector_baseIPN3zmq6pipe_tESaIS2_EE12_Vector_implE", !17, i64 0}
!17 = !{!"_ZTSNSt12_Vector_baseIPN3zmq6pipe_tESaIS2_EE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!18 = !{!"bool", !7, i64 0}
!19 = distinct !{!19, !20}
!20 = !{!"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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN3zmq7array_tINS_6pipe_tELi2EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN3zmq6dist_t9check_hwmEv(ptr noundef nonnull align 8 dereferenceable(49) %0) local_unnamed_addr #1 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 24
  %3 = load i64, ptr %2, align 8, !tbaa !5
  %4 = icmp eq i64 %3, 0
  br i1 %4, label %._crit_edge, label %.lr.ph

5:                                                ; preds = %.lr.ph
  %6 = add nuw i64 %.057, 1
  %7 = load i64, ptr %2, align 8, !tbaa !5
  %.not = icmp ult i64 %6, %7
  br i1 %.not, label %.lr.ph, label %._crit_edge, !llvm.loop !17

.lr.ph:                                           ; preds = %1, %5
  %.057 = phi i64 [ %6, %5 ], [ 0, %1 ]
  %8 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZN3zmq7array_tINS_6pipe_tELi2EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %.057)
  %9 = load ptr, ptr %8, align 8, !tbaa !19
  %10 = tail call noundef zeroext i1 @_ZNK3zmq6pipe_t9check_hwmEv(ptr noundef nonnull align 8 dereferenceable(264) %9)
  br i1 %10, label %5, label %._crit_edge

._crit_edge:                                      ; preds = %5, %.lr.ph, %1
  %.lcssa = phi i1 [ true, %1 ], [ %10, %.lr.ph ], [ %10, %5 ]
  ret i1 %.lcssa
}

declare noundef zeroext i1 @_ZNK3zmq6pipe_t9check_hwmEv(ptr noundef nonnull align 8 dereferenceable(264)) local_unnamed_addr #2

attributes #0 = { 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 #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 = { "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, !15, i64 24}
!6 = !{!"_ZTSN3zmq6dist_tE", !7, i64 0, !15, i64 24, !15, i64 32, !15, i64 40, !16, i64 48}
!7 = !{!"_ZTSN3zmq7array_tINS_6pipe_tELi2EEE", !8, i64 0}
!8 = !{!"_ZTSSt6vectorIPN3zmq6pipe_tESaIS2_EE", !9, i64 0}
!9 = !{!"_ZTSSt12_Vector_baseIPN3zmq6pipe_tESaIS2_EE", !10, i64 0}
!10 = !{!"_ZTSNSt12_Vector_baseIPN3zmq6pipe_tESaIS2_EE12_Vector_implE", !11, i64 0}
!11 = !{!"_ZTSNSt12_Vector_baseIPN3zmq6pipe_tESaIS2_EE17_Vector_impl_dataE", !12, i64 0, !12, i64 8, !12, i64 16}
!12 = !{!"any pointer", !13, i64 0}
!13 = !{!"omnipotent char", !14, i64 0}
!14 = !{!"Simple C++ TBAA"}
!15 = !{!"long", !13, i64 0}
!16 = !{!"bool", !13, i64 0}
!17 = distinct !{!17, !18}
!18 = !{!"llvm.loop.mustprogress"}
!19 = !{!12, !12, i64 0}


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