; LLVM IR from ThomasThelen/Finite-Difference-Method :: src/Engine.ll (ZN6Engine10CreateTimeEv)

; 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::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%class.Engine = type { i64, double, double, double, double, %"class.std::vector", %"class.std::vector.0", %"class.std::vector.5" }
%"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 }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::tuple<double, double>, std::allocator<std::tuple<double, double>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::tuple<double, double>, std::allocator<std::tuple<double, double>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::tuple<double, double>, std::allocator<std::tuple<double, double>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::tuple<double, double>, std::allocator<std::tuple<double, double>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.5" = type { %"struct.std::_Vector_base.6" }
%"struct.std::_Vector_base.6" = type { %"struct.std::_Vector_base<std::vector<std::tuple<double, double>>, std::allocator<std::vector<std::tuple<double, double>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<std::tuple<double, double>>, std::allocator<std::vector<std::tuple<double, double>>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<std::tuple<double, double>>, std::allocator<std::vector<std::tuple<double, double>>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<std::tuple<double, double>>, std::allocator<std::vector<std::tuple<double, double>>>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [24 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [13 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN6Engine10CreateTimeEv(ptr noundef nonnull align 8 dereferenceable(112) %0) #0 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca double, align 8
  %4 = alloca double, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %5 = load ptr, ptr %2, align 8
  %6 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  %7 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %8 = getelementptr inbounds %class.Engine, ptr %5, i32 0, i32 5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  store double 0.000000e+00, ptr %3, align 8, !tbaa !9
  call void @_ZNSt6vectorIdSaIdEE9push_backEOd(ptr noundef nonnull align 8 dereferenceable(24) %8, ptr noundef nonnull align 8 dereferenceable(8) %3)
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  br label %9

9:                                                ; preds = %16, %1
  %10 = getelementptr inbounds %class.Engine, ptr %5, i32 0, i32 5
  %11 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEE4backEv(ptr noundef nonnull align 8 dereferenceable(24) %10) #4
  %12 = load double, ptr %11, align 8, !tbaa !9
  %13 = getelementptr inbounds %class.Engine, ptr %5, i32 0, i32 1
  %14 = load double, ptr %13, align 8, !tbaa !11
  %15 = fcmp olt double %12, %14
  br i1 %15, label %16, label %24

16:                                               ; preds = %9
  %17 = getelementptr inbounds %class.Engine, ptr %5, i32 0, i32 5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  %18 = getelementptr inbounds %class.Engine, ptr %5, i32 0, i32 5
  %19 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEE4backEv(ptr noundef nonnull align 8 dereferenceable(24) %18) #4
  %20 = load double, ptr %19, align 8, !tbaa !9
  %21 = getelementptr inbounds %class.Engine, ptr %5, i32 0, i32 2
  %22 = load double, ptr %21, align 8, !tbaa !26
  %23 = fadd double %20, %22
  store double %23, ptr %4, align 8, !tbaa !9
  call void @_ZNSt6vectorIdSaIdEE9push_backEOd(ptr noundef nonnull align 8 dereferenceable(24) %17, ptr noundef nonnull align 8 dereferenceable(8) %4)
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  br label %9, !llvm.loop !27

24:                                               ; preds = %9
  %25 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.1)
  %26 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %25, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  ret void
}

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #1

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIdSaIdEE9push_backEOd(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEE4backEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

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 = { 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 #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"double", !7, i64 0}
!11 = !{!12, !10, i64 8}
!12 = !{!"_ZTS6Engine", !13, i64 0, !10, i64 8, !10, i64 16, !10, i64 24, !10, i64 32, !14, i64 40, !18, i64 64, !22, i64 88}
!13 = !{!"long", !7, i64 0}
!14 = !{!"_ZTSSt6vectorIdSaIdEE", !15, i64 0}
!15 = !{!"_ZTSSt12_Vector_baseIdSaIdEE", !16, i64 0}
!16 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE12_Vector_implE", !17, i64 0}
!17 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!18 = !{!"_ZTSSt6vectorISt5tupleIJddEESaIS1_EE", !19, i64 0}
!19 = !{!"_ZTSSt12_Vector_baseISt5tupleIJddEESaIS1_EE", !20, i64 0}
!20 = !{!"_ZTSNSt12_Vector_baseISt5tupleIJddEESaIS1_EE12_Vector_implE", !21, i64 0}
!21 = !{!"_ZTSNSt12_Vector_baseISt5tupleIJddEESaIS1_EE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!22 = !{!"_ZTSSt6vectorIS_ISt5tupleIJddEESaIS1_EESaIS3_EE", !23, i64 0}
!23 = !{!"_ZTSSt12_Vector_baseISt6vectorISt5tupleIJddEESaIS2_EESaIS4_EE", !24, i64 0}
!24 = !{!"_ZTSNSt12_Vector_baseISt6vectorISt5tupleIJddEESaIS2_EESaIS4_EE12_Vector_implE", !25, i64 0}
!25 = !{!"_ZTSNSt12_Vector_baseISt6vectorISt5tupleIJddEESaIS2_EESaIS4_EE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!26 = !{!12, !10, i64 16}
!27 = distinct !{!27, !28}
!28 = !{!"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"

%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [24 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [13 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN6Engine10CreateTimeEv(ptr noundef nonnull align 8 dereferenceable(112) %0) local_unnamed_addr #0 align 2 {
  %2 = alloca double, align 8
  %3 = alloca double, align 8
  %4 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str)
  %5 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %6 = getelementptr inbounds i8, ptr %0, i64 40
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #4
  store double 0.000000e+00, ptr %2, align 8, !tbaa !5
  call void @_ZNSt6vectorIdSaIdEE9push_backEOd(ptr noundef nonnull align 8 dereferenceable(24) %6, ptr noundef nonnull align 8 dereferenceable(8) %2)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #4
  %7 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEE4backEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #4
  %8 = load double, ptr %7, align 8, !tbaa !5
  %9 = getelementptr inbounds i8, ptr %0, i64 8
  %10 = load double, ptr %9, align 8, !tbaa !9
  %11 = fcmp olt double %8, %10
  br i1 %11, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1
  %12 = getelementptr inbounds i8, ptr %0, i64 16
  br label %13

13:                                               ; preds = %.lr.ph, %13
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  %14 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEE4backEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #4
  %15 = load double, ptr %14, align 8, !tbaa !5
  %16 = load double, ptr %12, align 8, !tbaa !25
  %17 = fadd double %15, %16
  store double %17, ptr %3, align 8, !tbaa !5
  call void @_ZNSt6vectorIdSaIdEE9push_backEOd(ptr noundef nonnull align 8 dereferenceable(24) %6, ptr noundef nonnull align 8 dereferenceable(8) %3)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  %18 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEE4backEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #4
  %19 = load double, ptr %18, align 8, !tbaa !5
  %20 = load double, ptr %9, align 8, !tbaa !9
  %21 = fcmp olt double %19, %20
  br i1 %21, label %13, label %._crit_edge, !llvm.loop !26

._crit_edge:                                      ; preds = %13, %1
  %22 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.1)
  %23 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %22, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  ret void
}

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIdSaIdEE9push_backEOd(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEE4backEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

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 = { 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 #2 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 8}
!10 = !{!"_ZTS6Engine", !11, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !12, i64 40, !17, i64 64, !21, i64 88}
!11 = !{!"long", !7, i64 0}
!12 = !{!"_ZTSSt6vectorIdSaIdEE", !13, i64 0}
!13 = !{!"_ZTSSt12_Vector_baseIdSaIdEE", !14, i64 0}
!14 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE12_Vector_implE", !15, i64 0}
!15 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE17_Vector_impl_dataE", !16, i64 0, !16, i64 8, !16, i64 16}
!16 = !{!"any pointer", !7, i64 0}
!17 = !{!"_ZTSSt6vectorISt5tupleIJddEESaIS1_EE", !18, i64 0}
!18 = !{!"_ZTSSt12_Vector_baseISt5tupleIJddEESaIS1_EE", !19, i64 0}
!19 = !{!"_ZTSNSt12_Vector_baseISt5tupleIJddEESaIS1_EE12_Vector_implE", !20, i64 0}
!20 = !{!"_ZTSNSt12_Vector_baseISt5tupleIJddEESaIS1_EE17_Vector_impl_dataE", !16, i64 0, !16, i64 8, !16, i64 16}
!21 = !{!"_ZTSSt6vectorIS_ISt5tupleIJddEESaIS1_EESaIS3_EE", !22, i64 0}
!22 = !{!"_ZTSSt12_Vector_baseISt6vectorISt5tupleIJddEESaIS2_EESaIS4_EE", !23, i64 0}
!23 = !{!"_ZTSNSt12_Vector_baseISt6vectorISt5tupleIJddEESaIS2_EESaIS4_EE12_Vector_implE", !24, i64 0}
!24 = !{!"_ZTSNSt12_Vector_baseISt6vectorISt5tupleIJddEESaIS2_EESaIS4_EE17_Vector_impl_dataE", !16, i64 0, !16, i64 8, !16, i64 16}
!25 = !{!10, !6, i64 16}
!26 = distinct !{!26, !27}
!27 = !{!"llvm.loop.mustprogress"}


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