; LLVM IR from Ubpa/USTC_CG :: Homeworks/6_MassSpring/documents/tetgen/src/TetGene (main)

; 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.CTet_generate = type { i8 }
%class.tetgenio = type { i32, i32, i32, ptr, ptr, ptr, ptr, ptr, ptr, i32, i32, i32, ptr, ptr, ptr, ptr, ptr, ptr, i32, i32, i32, ptr, ptr, i32, ptr, i32, ptr, i32, ptr, i32, ptr, i32, ptr, ptr, ptr, ptr, ptr, i32, ptr, ptr, ptr, ptr, i32, ptr, ptr, ptr, ptr, i32, i32, i32, i32, ptr, ptr, ptr, ptr, ptr, ptr, ptr }

@.str = external hidden unnamed_addr constant [18 x i8], align 1
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.1 = external hidden unnamed_addr constant [14 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca %class.CTet_generate, align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr %4) #6
  call void @_ZN13CTet_generateC1Ev(ptr noundef nonnull align 1 dereferenceable(1) %4)
  %7 = invoke noundef ptr @_ZN13CTet_generate7poly_inEPc(ptr noundef nonnull align 1 dereferenceable(1) %4, ptr noundef @.str)
          to label %8 unwind label %22

8:                                                ; preds = %0
  store ptr %7, ptr %2, align 8, !tbaa !5
  %9 = load ptr, ptr %2, align 8, !tbaa !5
  %10 = invoke noundef ptr @_ZN13CTet_generate7tet_outEP8tetgenio(ptr noundef nonnull align 1 dereferenceable(1) %4, ptr noundef %9)
          to label %11 unwind label %22

11:                                               ; preds = %8
  store ptr %10, ptr %3, align 8, !tbaa !5
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  %13 = getelementptr inbounds %class.tetgenio, ptr %12, i32 0, i32 9
  %14 = load i32, ptr %13, align 8, !tbaa !9
  %15 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %14)
          to label %16 unwind label %22

16:                                               ; preds = %11
  %17 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %15, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %18 unwind label %22

18:                                               ; preds = %16
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  invoke void @_ZN13CTet_generate10tet_outputEP8tetgenioPc(ptr noundef nonnull align 1 dereferenceable(1) %4, ptr noundef %19, ptr noundef @.str.1)
          to label %20 unwind label %22

20:                                               ; preds = %18
  store i32 0, ptr %1, align 4
  call void @_ZN13CTet_generateD1Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  %21 = load i32, ptr %1, align 4
  ret i32 %21

22:                                               ; preds = %18, %16, %11, %8, %0
  %23 = landingpad { ptr, i32 }
          cleanup
  %24 = extractvalue { ptr, i32 } %23, 0
  store ptr %24, ptr %5, align 8
  %25 = extractvalue { ptr, i32 } %23, 1
  store i32 %25, ptr %6, align 4
  call void @_ZN13CTet_generateD1Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  br label %26

26:                                               ; preds = %22
  %27 = load ptr, ptr %5, align 8
  %28 = load i32, ptr %6, align 4
  %29 = insertvalue { ptr, i32 } poison, ptr %27, 0
  %30 = insertvalue { ptr, i32 } %29, i32 %28, 1
  resume { ptr, i32 } %30
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

declare void @_ZN13CTet_generateC1Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2

declare noundef ptr @_ZN13CTet_generate7poly_inEPc(ptr noundef nonnull align 1 dereferenceable(1), ptr noundef) #2

declare i32 @__gxx_personality_v0(...)

declare noundef ptr @_ZN13CTet_generate7tet_outEP8tetgenio(ptr noundef nonnull align 1 dereferenceable(1), ptr noundef) #2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #3 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)) #4

declare void @_ZN13CTet_generate10tet_outputEP8tetgenioPc(ptr noundef nonnull align 1 dereferenceable(1), ptr noundef, ptr noundef) #2

; Function Attrs: nounwind
declare void @_ZN13CTet_generateD1Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #5

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { mustprogress norecurse 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
attributes #3 = { 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 #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 "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 #6 = { 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, !11, i64 64}
!10 = !{!"_ZTS8tetgenio", !11, i64 0, !11, i64 4, !11, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !11, i64 64, !11, i64 68, !11, i64 72, !6, i64 80, !6, i64 88, !6, i64 96, !6, i64 104, !6, i64 112, !6, i64 120, !11, i64 128, !11, i64 132, !11, i64 136, !6, i64 144, !6, i64 152, !11, i64 160, !6, i64 168, !11, i64 176, !6, i64 184, !11, i64 192, !6, i64 200, !11, i64 208, !6, i64 216, !11, i64 224, !6, i64 232, !6, i64 240, !6, i64 248, !6, i64 256, !6, i64 264, !11, i64 272, !6, i64 280, !6, i64 288, !6, i64 296, !6, i64 304, !11, i64 312, !6, i64 320, !6, i64 328, !6, i64 336, !6, i64 344, !11, i64 352, !11, i64 356, !11, i64 360, !11, i64 364, !6, i64 368, !6, i64 376, !6, i64 384, !6, i64 392, !6, i64 400, !6, i64 408, !6, i64 416}
!11 = !{!"int", !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::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.CTet_generate = type { i8 }

@.str = external hidden unnamed_addr constant [18 x i8], align 1
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.1 = external hidden unnamed_addr constant [14 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca %class.CTet_generate, align 1
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %1) #6
  call void @_ZN13CTet_generateC1Ev(ptr noundef nonnull align 1 dereferenceable(1) %1)
  %2 = invoke noundef ptr @_ZN13CTet_generate7poly_inEPc(ptr noundef nonnull align 1 dereferenceable(1) %1, ptr noundef nonnull @.str)
          to label %3 unwind label %13

3:                                                ; preds = %0
  %4 = invoke noundef ptr @_ZN13CTet_generate7tet_outEP8tetgenio(ptr noundef nonnull align 1 dereferenceable(1) %1, ptr noundef %2)
          to label %5 unwind label %13

5:                                                ; preds = %3
  %6 = getelementptr inbounds i8, ptr %4, i64 64
  %7 = load i32, ptr %6, align 8, !tbaa !5
  %8 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %7)
          to label %9 unwind label %13

9:                                                ; preds = %5
  %10 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %8, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %11 unwind label %13

11:                                               ; preds = %9
  invoke void @_ZN13CTet_generate10tet_outputEP8tetgenioPc(ptr noundef nonnull align 1 dereferenceable(1) %1, ptr noundef nonnull %4, ptr noundef nonnull @.str.1)
          to label %12 unwind label %13

12:                                               ; preds = %11
  call void @_ZN13CTet_generateD1Ev(ptr noundef nonnull align 1 dereferenceable(1) %1) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %1) #6
  ret i32 0

13:                                               ; preds = %11, %9, %5, %3, %0
  %14 = landingpad { ptr, i32 }
          cleanup
  call void @_ZN13CTet_generateD1Ev(ptr noundef nonnull align 1 dereferenceable(1) %1) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %1) #6
  resume { ptr, i32 } %14
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

declare void @_ZN13CTet_generateC1Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2

declare noundef ptr @_ZN13CTet_generate7poly_inEPc(ptr noundef nonnull align 1 dereferenceable(1), ptr noundef) local_unnamed_addr #2

declare i32 @__gxx_personality_v0(...)

declare noundef ptr @_ZN13CTet_generate7tet_outEP8tetgenio(ptr noundef nonnull align 1 dereferenceable(1), ptr noundef) local_unnamed_addr #2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #2

; 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 #3 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)) #4

declare void @_ZN13CTet_generate10tet_outputEP8tetgenioPc(ptr noundef nonnull align 1 dereferenceable(1), ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind
declare void @_ZN13CTet_generateD1Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #5

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { mustprogress norecurse 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
attributes #3 = { 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 #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 "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 #6 = { 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 64}
!6 = !{!"_ZTS8tetgenio", !7, i64 0, !7, i64 4, !7, i64 8, !10, i64 16, !10, i64 24, !10, i64 32, !10, i64 40, !10, i64 48, !10, i64 56, !7, i64 64, !7, i64 68, !7, i64 72, !10, i64 80, !10, i64 88, !10, i64 96, !10, i64 104, !10, i64 112, !10, i64 120, !7, i64 128, !7, i64 132, !7, i64 136, !10, i64 144, !10, i64 152, !7, i64 160, !10, i64 168, !7, i64 176, !10, i64 184, !7, i64 192, !10, i64 200, !7, i64 208, !10, i64 216, !7, i64 224, !10, i64 232, !10, i64 240, !10, i64 248, !10, i64 256, !10, i64 264, !7, i64 272, !10, i64 280, !10, i64 288, !10, i64 296, !10, i64 304, !7, i64 312, !10, i64 320, !10, i64 328, !10, i64 336, !10, i64 344, !7, i64 352, !7, i64 356, !7, i64 360, !7, i64 364, !10, i64 368, !10, i64 376, !10, i64 384, !10, i64 392, !10, i64 400, !10, i64 408, !10, i64 416}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,SimplifyCFGPass