; LLVM IR from fastmachinelearning/hls4ml :: hls4ml/templates/quartus (myproject_test_stream)

; 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.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z9nextTokenRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERmRf(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull align 8 dereferenceable(8) %1, ptr noundef nonnull align 4 dereferenceable(4) %2) #0 personality ptr @__gxx_personality_v0 {
  %4 = alloca i1, align 1
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca %"class.std::__cxx11::basic_string", align 8
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  br label %12

12:                                               ; preds = %29, %3
  %13 = load ptr, ptr %6, align 8, !tbaa !5
  %14 = load i64, ptr %13, align 8, !tbaa !9
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %15) #5
  %17 = icmp ult i64 %14, %16
  br i1 %17, label %18, label %27

18:                                               ; preds = %12
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = load ptr, ptr %6, align 8, !tbaa !5
  %21 = load i64, ptr %20, align 8, !tbaa !9
  %22 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %19, i64 noundef %21) #5
  %23 = load i8, ptr %22, align 1, !tbaa !11
  %24 = zext i8 %23 to i32
  %25 = call i32 @isspace(i32 noundef %24) #6
  %26 = icmp ne i32 %25, 0
  br label %27

27:                                               ; preds = %18, %12
  %28 = phi i1 [ false, %12 ], [ %26, %18 ]
  br i1 %28, label %29, label %33

29:                                               ; preds = %27
  %30 = load ptr, ptr %6, align 8, !tbaa !5
  %31 = load i64, ptr %30, align 8, !tbaa !9
  %32 = add i64 %31, 1
  store i64 %32, ptr %30, align 8, !tbaa !9
  br label %12, !llvm.loop !12

33:                                               ; preds = %27
  %34 = load ptr, ptr %6, align 8, !tbaa !5
  %35 = load i64, ptr %34, align 8, !tbaa !9
  %36 = load ptr, ptr %5, align 8, !tbaa !5
  %37 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %36) #5
  %38 = icmp uge i64 %35, %37
  br i1 %38, label %39, label %40

39:                                               ; preds = %33
  store i1 false, ptr %4, align 1
  br label %55

40:                                               ; preds = %33
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #5
  store i64 0, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 32, ptr %9) #5
  %41 = load ptr, ptr %5, align 8, !tbaa !5
  %42 = load ptr, ptr %6, align 8, !tbaa !5
  %43 = load i64, ptr %42, align 8, !tbaa !9
  call void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %9, ptr noundef nonnull align 8 dereferenceable(32) %41, i64 noundef %43, i64 noundef -1)
  %44 = invoke noundef float @_ZNSt7__cxx114stofERKNS_12basic_stringIcSt11char_traitsIcESaIcEEEPm(ptr noundef nonnull align 8 dereferenceable(32) %9, ptr noundef %8)
          to label %45 unwind label %51

45:                                               ; preds = %40
  %46 = load ptr, ptr %7, align 8, !tbaa !5
  store float %44, ptr %46, align 4, !tbaa !14
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %9) #5
  %47 = load i64, ptr %8, align 8, !tbaa !9
  %48 = load ptr, ptr %6, align 8, !tbaa !5
  %49 = load i64, ptr %48, align 8, !tbaa !9
  %50 = add i64 %49, %47
  store i64 %50, ptr %48, align 8, !tbaa !9
  store i1 true, ptr %4, align 1
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #5
  br label %55

51:                                               ; preds = %40
  %52 = landingpad { ptr, i32 }
          cleanup
  %53 = extractvalue { ptr, i32 } %52, 0
  store ptr %53, ptr %10, align 8
  %54 = extractvalue { ptr, i32 } %52, 1
  store i32 %54, ptr %11, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %9) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #5
  br label %57

55:                                               ; preds = %45, %39
  %56 = load i1, ptr %4, align 1
  ret i1 %56

57:                                               ; preds = %51
  %58 = load ptr, ptr %10, align 8
  %59 = load i32, ptr %11, align 4
  %60 = insertvalue { ptr, i32 } poison, ptr %58, 0
  %61 = insertvalue { ptr, i32 } %60, i32 %59, 1
  resume { ptr, i32 } %61
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) #1 align 2

; Function Attrs: nounwind willreturn memory(read)
declare i32 @isspace(i32 noundef) #2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #1 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef float @_ZNSt7__cxx114stofERKNS_12basic_stringIcSt11char_traitsIcESaIcEEEPm(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) #4

; Function Attrs: mustprogress uwtable
declare void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), i64 noundef, i64 noundef) #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

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" }
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 willreturn memory(read) "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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { inlinehint 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 #5 = { nounwind }
attributes #6 = { nounwind willreturn memory(read) }

!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"}
!14 = !{!15, !15, i64 0}
!15 = !{!"float", !7, i64 0}


; 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"

%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z9nextTokenRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERmRf(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr nocapture noundef nonnull align 8 dereferenceable(8) %1, ptr nocapture noundef nonnull writeonly align 4 dereferenceable(4) %2) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %4 = alloca i64, align 8
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  %6 = load i64, ptr %1, align 8, !tbaa !5
  %7 = tail call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #5
  %8 = icmp ult i64 %6, %7
  br i1 %8, label %.lr.ph, label %.critedge

.lr.ph:                                           ; preds = %3, %14
  %9 = load i64, ptr %1, align 8, !tbaa !5
  %10 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %9) #5
  %11 = load i8, ptr %10, align 1, !tbaa !9
  %12 = zext i8 %11 to i32
  %13 = tail call i32 @isspace(i32 noundef %12) #6
  %.not = icmp eq i32 %13, 0
  br i1 %.not, label %.critedge, label %14

14:                                               ; preds = %.lr.ph
  %15 = load i64, ptr %1, align 8, !tbaa !5
  %16 = add i64 %15, 1
  store i64 %16, ptr %1, align 8, !tbaa !5
  %17 = tail call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #5
  %18 = icmp ult i64 %16, %17
  br i1 %18, label %.lr.ph, label %.critedge, !llvm.loop !10

.critedge:                                        ; preds = %.lr.ph, %14, %3
  %19 = load i64, ptr %1, align 8, !tbaa !5
  %20 = tail call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #5
  %.not13 = icmp ult i64 %19, %20
  br i1 %.not13, label %21, label %30

21:                                               ; preds = %.critedge
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #5
  store i64 0, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %5) #5
  %22 = load i64, ptr %1, align 8, !tbaa !5
  call void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %5, ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %22, i64 noundef -1)
  %23 = invoke noundef float @_ZNSt7__cxx114stofERKNS_12basic_stringIcSt11char_traitsIcESaIcEEEPm(ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef nonnull %4)
          to label %24 unwind label %28

24:                                               ; preds = %21
  store float %23, ptr %2, align 4, !tbaa !12
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #5
  %25 = load i64, ptr %4, align 8, !tbaa !5
  %26 = load i64, ptr %1, align 8, !tbaa !5
  %27 = add i64 %26, %25
  store i64 %27, ptr %1, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  br label %30

28:                                               ; preds = %21
  %29 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  resume { ptr, i32 } %29

30:                                               ; preds = %.critedge, %24
  ret i1 %.not13
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nofree nounwind willreturn memory(read)
declare i32 @isspace(i32 noundef) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef float @_ZNSt7__cxx114stofERKNS_12basic_stringIcSt11char_traitsIcESaIcEEEPm(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) local_unnamed_addr #4

; Function Attrs: mustprogress uwtable
declare void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), i64 noundef, i64 noundef) local_unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

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" }
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 = { mustprogress nofree nounwind willreturn memory(read) "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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { inlinehint 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 #5 = { nounwind }
attributes #6 = { nounwind willreturn memory(read) }

!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++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = !{!13, !13, i64 0}
!13 = !{!"float", !7, i64 0}


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