; LLVM IR from opensim-org/opensim-core :: Vendors/lepton/src/ExpressionProgram.ll (ZN6Lepton17ExpressionProgramD2Ev)

; 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.Lepton::ExpressionProgram" = type { %"class.std::vector", i32, i32 }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<Lepton::Operation *, std::allocator<Lepton::Operation *>>::_Vector_impl" }
%"struct.std::_Vector_base<Lepton::Operation *, std::allocator<Lepton::Operation *>>::_Vector_impl" = type { %"struct.std::_Vector_base<Lepton::Operation *, std::allocator<Lepton::Operation *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<Lepton::Operation *, std::allocator<Lepton::Operation *>>::_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: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIPN6Lepton9OperationESaIS2_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIPN6Lepton9OperationESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIPN6Lepton9OperationESaIS2_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN6Lepton17ExpressionProgramD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %0) unnamed_addr #1 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  store i32 0, ptr %3, align 4, !tbaa !9
  br label %5

5:                                                ; preds = %24, %1
  %6 = load i32, ptr %3, align 4, !tbaa !9
  %7 = getelementptr inbounds %"class.Lepton::ExpressionProgram", ptr %4, i32 0, i32 0
  %8 = call noundef i64 @_ZNKSt6vectorIPN6Lepton9OperationESaIS2_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %7) #2
  %9 = trunc i64 %8 to i32
  %10 = icmp slt i32 %6, %9
  br i1 %10, label %12, label %11

11:                                               ; preds = %5
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  br label %27

12:                                               ; preds = %5
  %13 = getelementptr inbounds %"class.Lepton::ExpressionProgram", ptr %4, i32 0, i32 0
  %14 = load i32, ptr %3, align 4, !tbaa !9
  %15 = sext i32 %14 to i64
  %16 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIPN6Lepton9OperationESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %13, i64 noundef %15) #2
  %17 = load ptr, ptr %16, align 8, !tbaa !5
  %18 = icmp eq ptr %17, null
  br i1 %18, label %23, label %19

19:                                               ; preds = %12
  %20 = load ptr, ptr %17, align 8, !tbaa !11
  %21 = getelementptr inbounds ptr, ptr %20, i64 1
  %22 = load ptr, ptr %21, align 8
  call void %22(ptr noundef nonnull align 8 dereferenceable(8) %17) #2
  br label %23

23:                                               ; preds = %19, %12
  br label %24

24:                                               ; preds = %23
  %25 = load i32, ptr %3, align 4, !tbaa !9
  %26 = add nsw i32 %25, 1
  store i32 %26, ptr %3, align 4, !tbaa !9
  br label %5, !llvm.loop !13

27:                                               ; preds = %11
  %28 = getelementptr inbounds %"class.Lepton::ExpressionProgram", ptr %4, i32 0, i32 0
  call void @_ZNSt6vectorIPN6Lepton9OperationESaIS2_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %28) #2
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = !{!"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 = !{!12, !12, i64 0}
!12 = !{!"vtable pointer", !8, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIPN6Lepton9OperationESaIS2_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIPN6Lepton9OperationESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIPN6Lepton9OperationESaIS2_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN6Lepton17ExpressionProgramD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %0) unnamed_addr #0 align 2 {
  %2 = tail call noundef i64 @_ZNKSt6vectorIPN6Lepton9OperationESaIS2_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #1
  %3 = trunc i64 %2 to i32
  %4 = icmp sgt i32 %3, 0
  br i1 %4, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %12, %1
  tail call void @_ZNSt6vectorIPN6Lepton9OperationESaIS2_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #1
  ret void

.lr.ph:                                           ; preds = %1, %12
  %indvars.iv = phi i64 [ %indvars.iv.next, %12 ], [ 0, %1 ]
  %5 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIPN6Lepton9OperationESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %indvars.iv) #1
  %6 = load ptr, ptr %5, align 8, !tbaa !5
  %7 = icmp eq ptr %6, null
  br i1 %7, label %12, label %8

8:                                                ; preds = %.lr.ph
  %9 = load ptr, ptr %6, align 8, !tbaa !9
  %10 = getelementptr inbounds i8, ptr %9, i64 8
  %11 = load ptr, ptr %10, align 8
  tail call void %11(ptr noundef nonnull align 8 dereferenceable(8) %6) #1
  br label %12

12:                                               ; preds = %.lr.ph, %8
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %13 = tail call noundef i64 @_ZNKSt6vectorIPN6Lepton9OperationESaIS2_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #1
  %sext = shl i64 %13, 32
  %14 = ashr exact i64 %sext, 32
  %15 = icmp slt i64 %indvars.iv.next, %14
  br i1 %15, label %.lr.ph, label %._crit_edge, !llvm.loop !11
}

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 = { 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 = !{!"vtable pointer", !8, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


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