; LLVM IR from jianboqi/CSF :: src/Cloth.ll (ZN5Cloth13terrCollisionEv)

; 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.Vec3 = type { [3 x double] }
%class.Cloth = type { i32, i32, double, %"class.std::vector", double, double, %class.Vec3, double, double, %"class.std::vector.0", i32, i32 }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<Particle, std::allocator<Particle>>::_Vector_impl" }
%"struct.std::_Vector_base<Particle, std::allocator<Particle>>::_Vector_impl" = type { %"struct.std::_Vector_base<Particle, std::allocator<Particle>>::_Vector_impl_data" }
%"struct.std::_Vector_base<Particle, std::allocator<Particle>>::_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 }

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #0

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4Vec3C2Eddd(ptr noundef nonnull align 8 dereferenceable(24), double noundef, double noundef, double noundef) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(216) ptr @_ZNSt6vectorI8ParticleSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorI8ParticleSaIS0_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN5Cloth13terrCollisionEv(ptr noundef nonnull align 8 dereferenceable(128) %0) #3 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca %class.Vec3, align 8
  %6 = alloca %class.Vec3, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %7 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  %8 = getelementptr inbounds %class.Cloth, ptr %7, i32 0, i32 3
  %9 = call noundef i64 @_ZNKSt6vectorI8ParticleSaIS0_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %8) #4
  %10 = trunc i64 %9 to i32
  store i32 %10, ptr %3, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  store i32 0, ptr %4, align 4, !tbaa !9
  br label %11

11:                                               ; preds = %50, %1
  %12 = load i32, ptr %4, align 4, !tbaa !9
  %13 = load i32, ptr %3, align 4, !tbaa !9
  %14 = icmp slt i32 %12, %13
  br i1 %14, label %16, label %15

15:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  br label %53

16:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 24, ptr %5) #4
  %17 = getelementptr inbounds %class.Cloth, ptr %7, i32 0, i32 3
  %18 = load i32, ptr %4, align 4, !tbaa !9
  %19 = sext i32 %18 to i64
  %20 = call noundef nonnull align 8 dereferenceable(216) ptr @_ZNSt6vectorI8ParticleSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %17, i64 noundef %19) #4
  %21 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZN8Particle6getPosEv(ptr noundef nonnull align 8 dereferenceable(216) %20)
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %5, ptr align 8 %21, i64 24, i1 false), !tbaa.struct !11
  %22 = getelementptr inbounds %class.Vec3, ptr %5, i32 0, i32 0
  %23 = getelementptr inbounds [3 x double], ptr %22, i64 0, i64 1
  %24 = load double, ptr %23, align 8, !tbaa !13
  %25 = getelementptr inbounds %class.Cloth, ptr %7, i32 0, i32 9
  %26 = load i32, ptr %4, align 4, !tbaa !9
  %27 = sext i32 %26 to i64
  %28 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %25, i64 noundef %27) #4
  %29 = load double, ptr %28, align 8, !tbaa !13
  %30 = fcmp olt double %24, %29
  br i1 %30, label %31, label %49

31:                                               ; preds = %16
  %32 = getelementptr inbounds %class.Cloth, ptr %7, i32 0, i32 3
  %33 = load i32, ptr %4, align 4, !tbaa !9
  %34 = sext i32 %33 to i64
  %35 = call noundef nonnull align 8 dereferenceable(216) ptr @_ZNSt6vectorI8ParticleSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %32, i64 noundef %34) #4
  %36 = getelementptr inbounds %class.Cloth, ptr %7, i32 0, i32 9
  %37 = load i32, ptr %4, align 4, !tbaa !9
  %38 = sext i32 %37 to i64
  %39 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %36, i64 noundef %38) #4
  %40 = load double, ptr %39, align 8, !tbaa !13
  %41 = getelementptr inbounds %class.Vec3, ptr %5, i32 0, i32 0
  %42 = getelementptr inbounds [3 x double], ptr %41, i64 0, i64 1
  %43 = load double, ptr %42, align 8, !tbaa !13
  %44 = fsub double %40, %43
  call void @_ZN4Vec3C2Eddd(ptr noundef nonnull align 8 dereferenceable(24) %6, double noundef 0.000000e+00, double noundef %44, double noundef 0.000000e+00)
  call void @_ZN8Particle9offsetPosE4Vec3(ptr noundef nonnull align 8 dereferenceable(216) %35, ptr noundef byval(%class.Vec3) align 8 %6)
  %45 = getelementptr inbounds %class.Cloth, ptr %7, i32 0, i32 3
  %46 = load i32, ptr %4, align 4, !tbaa !9
  %47 = sext i32 %46 to i64
  %48 = call noundef nonnull align 8 dereferenceable(216) ptr @_ZNSt6vectorI8ParticleSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %45, i64 noundef %47) #4
  call void @_ZN8Particle13makeUnmovableEv(ptr noundef nonnull align 8 dereferenceable(216) %48)
  br label %49

49:                                               ; preds = %31, %16
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #4
  br label %50

50:                                               ; preds = %49
  %51 = load i32, ptr %4, align 4, !tbaa !9
  %52 = add nsw i32 %51, 1
  store i32 %52, ptr %4, align 4, !tbaa !9
  br label %11, !llvm.loop !15

53:                                               ; preds = %15
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZN8Particle6getPosEv(ptr noundef nonnull align 8 dereferenceable(216)) #2 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 void @_ZN8Particle9offsetPosE4Vec3(ptr noundef nonnull align 8 dereferenceable(216), ptr noundef byval(%class.Vec3) align 8) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN8Particle13makeUnmovableEv(ptr noundef nonnull align 8 dereferenceable(216)) #2 align 2

attributes #0 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 = { 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 = !{i64 0, i64 24, !12}
!12 = !{!7, !7, i64 0}
!13 = !{!14, !14, i64 0}
!14 = !{!"double", !7, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"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.Vec3 = type { [3 x double] }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4Vec3C2Eddd(ptr noundef nonnull align 8 dereferenceable(24), double noundef, double noundef, double noundef) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(216) ptr @_ZNSt6vectorI8ParticleSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorI8ParticleSaIS0_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN5Cloth13terrCollisionEv(ptr noundef nonnull align 8 dereferenceable(128) %0) local_unnamed_addr #0 align 2 {
  %2 = alloca %class.Vec3, align 8
  %3 = getelementptr inbounds i8, ptr %0, i64 16
  %4 = tail call noundef i64 @_ZNKSt6vectorI8ParticleSaIS0_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #1
  %5 = trunc i64 %4 to i32
  %6 = icmp sgt i32 %5, 0
  br i1 %6, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1
  %7 = getelementptr inbounds i8, ptr %0, i64 96
  %wide.trip.count = and i64 %4, 2147483647
  br label %8

._crit_edge:                                      ; preds = %20, %1
  ret void

8:                                                ; preds = %.lr.ph, %20
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %20 ]
  %9 = call noundef nonnull align 8 dereferenceable(216) ptr @_ZNSt6vectorI8ParticleSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %indvars.iv) #1
  %10 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZN8Particle6getPosEv(ptr noundef nonnull align 8 dereferenceable(216) %9)
  %.sroa.3.0..sroa_idx = getelementptr inbounds i8, ptr %10, i64 8
  %.sroa.3.0.copyload = load double, ptr %.sroa.3.0..sroa_idx, align 8
  %11 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %indvars.iv) #1
  %12 = load double, ptr %11, align 8, !tbaa !5
  %13 = fcmp olt double %.sroa.3.0.copyload, %12
  br i1 %13, label %14, label %20

14:                                               ; preds = %8
  %15 = call noundef nonnull align 8 dereferenceable(216) ptr @_ZNSt6vectorI8ParticleSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %indvars.iv) #1
  %16 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %indvars.iv) #1
  %17 = load double, ptr %16, align 8, !tbaa !5
  %18 = fsub double %17, %.sroa.3.0.copyload
  call void @_ZN4Vec3C2Eddd(ptr noundef nonnull align 8 dereferenceable(24) %2, double noundef 0.000000e+00, double noundef %18, double noundef 0.000000e+00)
  call void @_ZN8Particle9offsetPosE4Vec3(ptr noundef nonnull align 8 dereferenceable(216) %15, ptr noundef nonnull byval(%class.Vec3) align 8 %2)
  %19 = call noundef nonnull align 8 dereferenceable(216) ptr @_ZNSt6vectorI8ParticleSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %indvars.iv) #1
  call void @_ZN8Particle13makeUnmovableEv(ptr noundef nonnull align 8 dereferenceable(216) %19)
  br label %20

20:                                               ; preds = %14, %8
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %8, !llvm.loop !9
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZN8Particle6getPosEv(ptr noundef nonnull align 8 dereferenceable(216)) 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 #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN8Particle9offsetPosE4Vec3(ptr noundef nonnull align 8 dereferenceable(216), ptr noundef byval(%class.Vec3) align 8) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN8Particle13makeUnmovableEv(ptr noundef nonnull align 8 dereferenceable(216)) local_unnamed_addr #0 align 2

attributes #0 = { 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 #1 = { 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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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