; LLVM IR from idmillington/cyclone-physics :: src/world.ll (ZN7cyclone5World10startFrameEv)

; 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.cyclone::World" = type <{ i8, [7 x i8], ptr, %"class.cyclone::ContactResolver", ptr, ptr, i32, [4 x i8] }>
%"class.cyclone::ContactResolver" = type <{ i32, i32, double, double, i32, i32, i8, [7 x i8] }>
%"struct.cyclone::World::BodyRegistration" = type { ptr, ptr }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7cyclone5World10startFrameEv(ptr noundef nonnull align 8 dereferenceable(76) %0) #0 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %5 = getelementptr inbounds %"class.cyclone::World", ptr %4, i32 0, i32 2
  %6 = load ptr, ptr %5, align 8, !tbaa !9
  store ptr %6, ptr %3, align 8, !tbaa !5
  br label %7

7:                                                ; preds = %10, %1
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = icmp ne ptr %8, null
  br i1 %9, label %10, label %20

10:                                               ; preds = %7
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = getelementptr inbounds %"struct.cyclone::World::BodyRegistration", ptr %11, i32 0, i32 0
  %13 = load ptr, ptr %12, align 8, !tbaa !15
  call void @_ZN7cyclone9RigidBody17clearAccumulatorsEv(ptr noundef nonnull align 8 dereferenceable(536) %13)
  %14 = load ptr, ptr %3, align 8, !tbaa !5
  %15 = getelementptr inbounds %"struct.cyclone::World::BodyRegistration", ptr %14, i32 0, i32 0
  %16 = load ptr, ptr %15, align 8, !tbaa !15
  call void @_ZN7cyclone9RigidBody20calculateDerivedDataEv(ptr noundef nonnull align 8 dereferenceable(536) %16)
  %17 = load ptr, ptr %3, align 8, !tbaa !5
  %18 = getelementptr inbounds %"struct.cyclone::World::BodyRegistration", ptr %17, i32 0, i32 1
  %19 = load ptr, ptr %18, align 8, !tbaa !17
  store ptr %19, ptr %3, align 8, !tbaa !5
  br label %7, !llvm.loop !18

20:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret void
}

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

declare void @_ZN7cyclone9RigidBody17clearAccumulatorsEv(ptr noundef nonnull align 8 dereferenceable(536)) #2

declare void @_ZN7cyclone9RigidBody20calculateDerivedDataEv(ptr noundef nonnull align 8 dereferenceable(536)) #2

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

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 = { 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 = { 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, !6, i64 8}
!10 = !{!"_ZTSN7cyclone5WorldE", !11, i64 0, !6, i64 8, !12, i64 16, !6, i64 56, !6, i64 64, !13, i64 72}
!11 = !{!"bool", !7, i64 0}
!12 = !{!"_ZTSN7cyclone15ContactResolverE", !13, i64 0, !13, i64 4, !14, i64 8, !14, i64 16, !13, i64 24, !13, i64 28, !11, i64 32}
!13 = !{!"int", !7, i64 0}
!14 = !{!"double", !7, i64 0}
!15 = !{!16, !6, i64 0}
!16 = !{!"_ZTSN7cyclone5World16BodyRegistrationE", !6, i64 0, !6, i64 8}
!17 = !{!16, !6, i64 8}
!18 = distinct !{!18, !19}
!19 = !{!"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"

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7cyclone5World10startFrameEv(ptr nocapture noundef nonnull readonly align 8 dereferenceable(76) %0) local_unnamed_addr #0 align 2 {
  %.0.in5 = getelementptr inbounds i8, ptr %0, i64 8
  %.06 = load ptr, ptr %.0.in5, align 8, !tbaa !5
  %.not7 = icmp eq ptr %.06, null
  br i1 %.not7, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.08 = phi ptr [ %.0, %.lr.ph ], [ %.06, %1 ]
  %2 = load ptr, ptr %.08, align 8, !tbaa !9
  tail call void @_ZN7cyclone9RigidBody17clearAccumulatorsEv(ptr noundef nonnull align 8 dereferenceable(536) %2)
  %3 = load ptr, ptr %.08, align 8, !tbaa !9
  tail call void @_ZN7cyclone9RigidBody20calculateDerivedDataEv(ptr noundef nonnull align 8 dereferenceable(536) %3)
  %.0.in = getelementptr inbounds i8, ptr %.08, i64 8
  %.0 = load ptr, ptr %.0.in, align 8, !tbaa !5
  %.not = icmp eq ptr %.0, null
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !11

._crit_edge:                                      ; preds = %.lr.ph, %1
  ret void
}

declare void @_ZN7cyclone9RigidBody17clearAccumulatorsEv(ptr noundef nonnull align 8 dereferenceable(536)) local_unnamed_addr #1

declare void @_ZN7cyclone9RigidBody20calculateDerivedDataEv(ptr noundef nonnull align 8 dereferenceable(536)) local_unnamed_addr #1

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 = { "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" }

!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, !6, i64 0}
!10 = !{!"_ZTSN7cyclone5World16BodyRegistrationE", !6, i64 0, !6, i64 8}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


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