; LLVM IR from CMU-CBML/NeuronTransportIGA :: spline_src/BSplineBasis.ll (ZN12BSplineBasis3SetEiRKSt6vectorIdSaIdEE)

; 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.BSplineBasis = type { i32, i32, %"class.std::vector" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl" }
%"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl" = type { %"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl_data" }
%"struct.std::_Vector_base<double, std::allocator<double>>::_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 nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIdSaIdEE6assignIPdvEEvT_S4_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef, ptr noundef) #2 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 uwtable
declare dso_local noundef zeroext i1 @_ZN12BSplineBasis5CheckEiRKSt6vectorIdSaIdEE(ptr noundef nonnull align 8 dereferenceable(32), i32 noundef, ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIdSaIdEEaSERKS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIdSaIdEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN12BSplineBasis3SetEiRKSt6vectorIdSaIdEE(ptr noundef nonnull align 8 dereferenceable(32) %0, i32 noundef %1, ptr noundef nonnull align 8 dereferenceable(24) %2) #2 align 2 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca [5 x double], align 16
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  store ptr %2, ptr %6, align 8, !tbaa !5
  %8 = load ptr, ptr %4, align 8
  %9 = load i32, ptr %5, align 4, !tbaa !9
  %10 = load ptr, ptr %6, align 8, !tbaa !5
  %11 = call noundef zeroext i1 @_ZN12BSplineBasis5CheckEiRKSt6vectorIdSaIdEE(ptr noundef nonnull align 8 dereferenceable(32) %8, i32 noundef %9, ptr noundef nonnull align 8 dereferenceable(24) %10)
  br i1 %11, label %12, label %26

12:                                               ; preds = %3
  %13 = load i32, ptr %5, align 4, !tbaa !9
  %14 = getelementptr inbounds %class.BSplineBasis, ptr %8, i32 0, i32 0
  store i32 %13, ptr %14, align 8, !tbaa !11
  %15 = load ptr, ptr %6, align 8, !tbaa !5
  %16 = getelementptr inbounds %class.BSplineBasis, ptr %8, i32 0, i32 2
  %17 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIdSaIdEEaSERKS1_(ptr noundef nonnull align 8 dereferenceable(24) %16, ptr noundef nonnull align 8 dereferenceable(24) %15)
  %18 = load ptr, ptr %6, align 8, !tbaa !5
  %19 = call noundef i64 @_ZNKSt6vectorIdSaIdEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %18) #4
  %20 = load i32, ptr %5, align 4, !tbaa !9
  %21 = sext i32 %20 to i64
  %22 = sub i64 %19, %21
  %23 = sub i64 %22, 1
  %24 = trunc i64 %23 to i32
  %25 = getelementptr inbounds %class.BSplineBasis, ptr %8, i32 0, i32 1
  store i32 %24, ptr %25, align 4, !tbaa !17
  br label %37

26:                                               ; preds = %3
  %27 = getelementptr inbounds %class.BSplineBasis, ptr %8, i32 0, i32 0
  store i32 3, ptr %27, align 8, !tbaa !11
  %28 = getelementptr inbounds %class.BSplineBasis, ptr %8, i32 0, i32 1
  store i32 1, ptr %28, align 4, !tbaa !17
  call void @llvm.lifetime.start.p0(i64 40, ptr %7) #4
  call void @llvm.memset.p0.i64(ptr align 16 %7, i8 0, i64 40, i1 false)
  %29 = getelementptr inbounds [5 x double], ptr %7, i32 0, i32 1
  store double 1.000000e+00, ptr %29, align 8
  %30 = getelementptr inbounds [5 x double], ptr %7, i32 0, i32 2
  store double 2.000000e+00, ptr %30, align 16
  %31 = getelementptr inbounds [5 x double], ptr %7, i32 0, i32 3
  store double 3.000000e+00, ptr %31, align 8
  %32 = getelementptr inbounds [5 x double], ptr %7, i32 0, i32 4
  store double 4.000000e+00, ptr %32, align 16
  %33 = getelementptr inbounds %class.BSplineBasis, ptr %8, i32 0, i32 2
  %34 = getelementptr inbounds [5 x double], ptr %7, i64 0, i64 0
  %35 = getelementptr inbounds [5 x double], ptr %7, i64 0, i64 0
  %36 = getelementptr inbounds double, ptr %35, i64 5
  call void @_ZNSt6vectorIdSaIdEE6assignIPdvEEvT_S4_(ptr noundef nonnull align 8 dereferenceable(24) %33, ptr noundef %34, ptr noundef %36)
  call void @llvm.lifetime.end.p0(i64 40, ptr %7) #4
  br label %37

37:                                               ; preds = %26, %12
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: write) }
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 = { 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 #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 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"_ZTS12BSplineBasis", !10, i64 0, !10, i64 4, !13, i64 8}
!13 = !{!"_ZTSSt6vectorIdSaIdEE", !14, i64 0}
!14 = !{!"_ZTSSt12_Vector_baseIdSaIdEE", !15, i64 0}
!15 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE12_Vector_implE", !16, i64 0}
!16 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!17 = !{!12, !10, i64 4}


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

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIdSaIdEE6assignIPdvEEvT_S4_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef, ptr noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress 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 noundef zeroext i1 @_ZN12BSplineBasis5CheckEiRKSt6vectorIdSaIdEE(ptr noundef nonnull align 8 dereferenceable(32), i32 noundef, ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIdSaIdEEaSERKS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIdSaIdEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN12BSplineBasis3SetEiRKSt6vectorIdSaIdEE(ptr noundef nonnull align 8 dereferenceable(32) %0, i32 noundef %1, ptr noundef nonnull align 8 dereferenceable(24) %2) local_unnamed_addr #2 align 2 {
  %4 = alloca [5 x double], align 16
  %5 = tail call noundef zeroext i1 @_ZN12BSplineBasis5CheckEiRKSt6vectorIdSaIdEE(ptr noundef nonnull align 8 dereferenceable(32) %0, i32 noundef %1, ptr noundef nonnull align 8 dereferenceable(24) %2)
  br i1 %5, label %6, label %14

6:                                                ; preds = %3
  store i32 %1, ptr %0, align 8, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %0, i64 8
  %8 = tail call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIdSaIdEEaSERKS1_(ptr noundef nonnull align 8 dereferenceable(24) %7, ptr noundef nonnull align 8 dereferenceable(24) %2)
  %9 = tail call noundef i64 @_ZNKSt6vectorIdSaIdEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #4
  %10 = xor i32 %1, -1
  %11 = trunc i64 %9 to i32
  %12 = add i32 %11, %10
  %13 = getelementptr inbounds i8, ptr %0, i64 4
  store i32 %12, ptr %13, align 4, !tbaa !15
  br label %20

14:                                               ; preds = %3
  store i32 3, ptr %0, align 8, !tbaa !5
  %15 = getelementptr inbounds i8, ptr %0, i64 4
  store i32 1, ptr %15, align 4, !tbaa !15
  call void @llvm.lifetime.start.p0(i64 40, ptr nonnull %4) #4
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(40) %4, i8 0, i64 16, i1 false)
  %16 = getelementptr inbounds i8, ptr %4, i64 8
  store <2 x double> <double 1.000000e+00, double 2.000000e+00>, ptr %16, align 8
  %17 = getelementptr inbounds i8, ptr %4, i64 24
  store <2 x double> <double 3.000000e+00, double 4.000000e+00>, ptr %17, align 8
  %18 = getelementptr inbounds i8, ptr %0, i64 8
  %19 = getelementptr inbounds i8, ptr %4, i64 40
  call void @_ZNSt6vectorIdSaIdEE6assignIPdvEEvT_S4_(ptr noundef nonnull align 8 dereferenceable(24) %18, ptr noundef nonnull %4, ptr noundef nonnull %19)
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %4) #4
  br label %20

20:                                               ; preds = %14, %6
  ret void
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
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 = { 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 #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, !7, i64 0}
!6 = !{!"_ZTS12BSplineBasis", !7, i64 0, !7, i64 4, !10, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"_ZTSSt6vectorIdSaIdEE", !11, i64 0}
!11 = !{!"_ZTSSt12_Vector_baseIdSaIdEE", !12, i64 0}
!12 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE12_Vector_implE", !13, i64 0}
!13 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE17_Vector_impl_dataE", !14, i64 0, !14, i64 8, !14, i64 16}
!14 = !{!"any pointer", !8, i64 0}
!15 = !{!6, !7, i64 4}


; Effective O3 passes: DSEPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,SLPVectorizerPass,SROAPass,TailCallElimPass