; LLVM IR from sp-nitech/SPTK :: src/math/symmetric_matrix.ll (ZN4sptk15SymmetricMatrixC2Ei)

; 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.sptk::SymmetricMatrix" = type { ptr, i32, %"class.std::vector", %"class.std::vector.0" }
%"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<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 }

@_ZTVN4sptk15SymmetricMatrixE = external dso_local unnamed_addr constant { [4 x ptr] }, align 8

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

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4sptk15SymmetricMatrixC2Ei(ptr noundef nonnull align 8 dereferenceable(64) %0, i32 noundef %1) unnamed_addr #1 align 2 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  %9 = load ptr, ptr %3, align 8
  store ptr getelementptr inbounds inrange(-16, 16) ({ [4 x ptr] }, ptr @_ZTVN4sptk15SymmetricMatrixE, i32 0, i32 0, i32 2), ptr %9, align 8, !tbaa !11
  %10 = getelementptr inbounds %"class.sptk::SymmetricMatrix", ptr %9, i32 0, i32 1
  %11 = load i32, ptr %4, align 4, !tbaa !9
  %12 = icmp slt i32 %11, 0
  br i1 %12, label %13, label %14

13:                                               ; preds = %2
  br label %16

14:                                               ; preds = %2
  %15 = load i32, ptr %4, align 4, !tbaa !9
  br label %16

16:                                               ; preds = %14, %13
  %17 = phi i32 [ 0, %13 ], [ %15, %14 ]
  store i32 %17, ptr %10, align 8, !tbaa !13
  %18 = getelementptr inbounds %"class.sptk::SymmetricMatrix", ptr %9, i32 0, i32 2
  call void @_ZNSt6vectorIdSaIdEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %18) #3
  %19 = getelementptr inbounds %"class.sptk::SymmetricMatrix", ptr %9, i32 0, i32 3
  call void @_ZNSt6vectorIPdSaIS0_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %19) #3
  %20 = getelementptr inbounds %"class.sptk::SymmetricMatrix", ptr %9, i32 0, i32 2
  %21 = getelementptr inbounds %"class.sptk::SymmetricMatrix", ptr %9, i32 0, i32 1
  %22 = load i32, ptr %21, align 8, !tbaa !13
  %23 = getelementptr inbounds %"class.sptk::SymmetricMatrix", ptr %9, i32 0, i32 1
  %24 = load i32, ptr %23, align 8, !tbaa !13
  %25 = add nsw i32 %24, 1
  %26 = mul nsw i32 %22, %25
  %27 = sdiv i32 %26, 2
  %28 = sext i32 %27 to i64
  invoke void @_ZNSt6vectorIdSaIdEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24) %20, i64 noundef %28)
          to label %29 unwind label %41

29:                                               ; preds = %16
  %30 = getelementptr inbounds %"class.sptk::SymmetricMatrix", ptr %9, i32 0, i32 3
  %31 = getelementptr inbounds %"class.sptk::SymmetricMatrix", ptr %9, i32 0, i32 1
  %32 = load i32, ptr %31, align 8, !tbaa !13
  %33 = sext i32 %32 to i64
  invoke void @_ZNSt6vectorIPdSaIS0_EE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24) %30, i64 noundef %33)
          to label %34 unwind label %41

34:                                               ; preds = %29
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  store i32 0, ptr %7, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  store i32 0, ptr %8, align 4, !tbaa !9
  br label %35

35:                                               ; preds = %54, %34
  %36 = load i32, ptr %7, align 4, !tbaa !9
  %37 = getelementptr inbounds %"class.sptk::SymmetricMatrix", ptr %9, i32 0, i32 1
  %38 = load i32, ptr %37, align 8, !tbaa !13
  %39 = icmp slt i32 %36, %38
  br i1 %39, label %45, label %40

40:                                               ; preds = %35
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  br label %60

41:                                               ; preds = %29, %16
  %42 = landingpad { ptr, i32 }
          cleanup
  %43 = extractvalue { ptr, i32 } %42, 0
  store ptr %43, ptr %5, align 8
  %44 = extractvalue { ptr, i32 } %42, 1
  store i32 %44, ptr %6, align 4
  call void @_ZNSt6vectorIPdSaIS0_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %19) #3
  call void @_ZNSt6vectorIdSaIdEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %18) #3
  br label %61

45:                                               ; preds = %35
  %46 = getelementptr inbounds %"class.sptk::SymmetricMatrix", ptr %9, i32 0, i32 2
  %47 = load i32, ptr %8, align 4, !tbaa !9
  %48 = sext i32 %47 to i64
  %49 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %46, i64 noundef %48) #3
  %50 = getelementptr inbounds %"class.sptk::SymmetricMatrix", ptr %9, i32 0, i32 3
  %51 = load i32, ptr %7, align 4, !tbaa !9
  %52 = sext i32 %51 to i64
  %53 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIPdSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %50, i64 noundef %52) #3
  store ptr %49, ptr %53, align 8, !tbaa !5
  br label %54

54:                                               ; preds = %45
  %55 = load i32, ptr %7, align 4, !tbaa !9
  %56 = add nsw i32 %55, 1
  store i32 %56, ptr %7, align 4, !tbaa !9
  %57 = load i32, ptr %7, align 4, !tbaa !9
  %58 = load i32, ptr %8, align 4, !tbaa !9
  %59 = add nsw i32 %58, %57
  store i32 %59, ptr %8, align 4, !tbaa !9
  br label %35, !llvm.loop !23

60:                                               ; preds = %40
  ret void

61:                                               ; preds = %41
  %62 = load ptr, ptr %5, align 8
  %63 = load i32, ptr %6, align 4
  %64 = insertvalue { ptr, i32 } poison, ptr %62, 0
  %65 = insertvalue { ptr, i32 } %64, i32 %63, 1
  resume { ptr, i32 } %65
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIdSaIdEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIPdSaIS0_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIdSaIdEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIPdSaIS0_EE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIPdSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIPdSaIS0_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIdSaIdEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 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 #3 = { 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 = !{!14, !10, i64 8}
!14 = !{!"_ZTSN4sptk15SymmetricMatrixE", !10, i64 8, !15, i64 16, !19, i64 40}
!15 = !{!"_ZTSSt6vectorIdSaIdEE", !16, i64 0}
!16 = !{!"_ZTSSt12_Vector_baseIdSaIdEE", !17, i64 0}
!17 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE12_Vector_implE", !18, i64 0}
!18 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!19 = !{!"_ZTSSt6vectorIPdSaIS0_EE", !20, i64 0}
!20 = !{!"_ZTSSt12_Vector_baseIPdSaIS0_EE", !21, i64 0}
!21 = !{!"_ZTSNSt12_Vector_baseIPdSaIS0_EE12_Vector_implE", !22, i64 0}
!22 = !{!"_ZTSNSt12_Vector_baseIPdSaIS0_EE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!23 = distinct !{!23, !24}
!24 = !{!"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"

@_ZTVN4sptk15SymmetricMatrixE = external dso_local unnamed_addr constant { [4 x ptr] }, align 8

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4sptk15SymmetricMatrixC2Ei(ptr noundef nonnull align 8 dereferenceable(64) %0, i32 noundef %1) unnamed_addr #0 align 2 personality ptr @__gxx_personality_v0 {
  store ptr getelementptr inbounds inrange(-16, 16) (i8, ptr @_ZTVN4sptk15SymmetricMatrixE, i64 16), ptr %0, align 8, !tbaa !5
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  %4 = tail call i32 @llvm.smax.i32(i32 %1, i32 0)
  store i32 %4, ptr %3, align 8, !tbaa !8
  %5 = getelementptr inbounds i8, ptr %0, i64 16
  tail call void @_ZNSt6vectorIdSaIdEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #3
  %6 = getelementptr inbounds i8, ptr %0, i64 40
  tail call void @_ZNSt6vectorIPdSaIS0_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #3
  %7 = load i32, ptr %3, align 8, !tbaa !8
  %8 = add nsw i32 %7, 1
  %9 = mul nsw i32 %8, %7
  %10 = sdiv i32 %9, 2
  %11 = sext i32 %10 to i64
  invoke void @_ZNSt6vectorIdSaIdEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %11)
          to label %12 unwind label %17

12:                                               ; preds = %2
  %13 = load i32, ptr %3, align 8, !tbaa !8
  %14 = sext i32 %13 to i64
  invoke void @_ZNSt6vectorIPdSaIS0_EE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %14)
          to label %.preheader unwind label %17

.preheader:                                       ; preds = %12
  %15 = load i32, ptr %3, align 8, !tbaa !8
  %16 = icmp sgt i32 %15, 0
  br i1 %16, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %.preheader
  ret void

17:                                               ; preds = %12, %2
  %18 = landingpad { ptr, i32 }
          cleanup
  tail call void @_ZNSt6vectorIPdSaIS0_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #3
  tail call void @_ZNSt6vectorIdSaIdEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #3
  resume { ptr, i32 } %18

.lr.ph:                                           ; preds = %.preheader, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %.preheader ]
  %.012 = phi i32 [ %23, %.lr.ph ], [ 0, %.preheader ]
  %19 = zext nneg i32 %.012 to i64
  %20 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %19) #3
  %21 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIPdSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %indvars.iv) #3
  store ptr %20, ptr %21, align 8, !tbaa !21
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %22 = trunc nuw nsw i64 %indvars.iv.next to i32
  %23 = add nuw nsw i32 %.012, %22
  %24 = load i32, ptr %3, align 8, !tbaa !8
  %25 = sext i32 %24 to i64
  %26 = icmp slt i64 %indvars.iv.next, %25
  br i1 %26, label %.lr.ph, label %._crit_edge, !llvm.loop !22
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIdSaIdEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIPdSaIS0_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIdSaIdEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIPdSaIS0_EE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIPdSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIPdSaIS0_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIdSaIdEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.smax.i32(i32, i32) #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 = { 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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #3 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !10, i64 8}
!9 = !{!"_ZTSN4sptk15SymmetricMatrixE", !10, i64 8, !12, i64 16, !17, i64 40}
!10 = !{!"int", !11, i64 0}
!11 = !{!"omnipotent char", !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", !11, i64 0}
!17 = !{!"_ZTSSt6vectorIPdSaIS0_EE", !18, i64 0}
!18 = !{!"_ZTSSt12_Vector_baseIPdSaIS0_EE", !19, i64 0}
!19 = !{!"_ZTSNSt12_Vector_baseIPdSaIS0_EE12_Vector_implE", !20, i64 0}
!20 = !{!"_ZTSNSt12_Vector_baseIPdSaIS0_EE17_Vector_impl_dataE", !16, i64 0, !16, i64 8, !16, i64 16}
!21 = !{!16, !16, i64 0}
!22 = distinct !{!22, !23}
!23 = !{!"llvm.loop.mustprogress"}


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