; LLVM IR from simonaertssen/MIT-6.172-Performance-Engineering-of-Software-Systems :: Project 2 - Collision Detection/screensaver (intersection_event_list)

; 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"

%struct.IntersectionEventNode = type { ptr, ptr, i32, ptr }

; Function Attrs: nounwind uwtable
define dso_local void @IntersectionEventNode_swapData(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.IntersectionEventNode, ptr %8, i32 0, i32 0
  %10 = load ptr, ptr %9, align 8, !tbaa !9
  store ptr %10, ptr %5, align 8, !tbaa !5
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.IntersectionEventNode, ptr %11, i32 0, i32 0
  %13 = load ptr, ptr %12, align 8, !tbaa !9
  %14 = load ptr, ptr %3, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.IntersectionEventNode, ptr %14, i32 0, i32 0
  store ptr %13, ptr %15, align 8, !tbaa !9
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = load ptr, ptr %4, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.IntersectionEventNode, ptr %17, i32 0, i32 0
  store ptr %16, ptr %18, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.IntersectionEventNode, ptr %19, i32 0, i32 1
  %21 = load ptr, ptr %20, align 8, !tbaa !12
  store ptr %21, ptr %6, align 8, !tbaa !5
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.IntersectionEventNode, ptr %22, i32 0, i32 1
  %24 = load ptr, ptr %23, align 8, !tbaa !12
  %25 = load ptr, ptr %3, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.IntersectionEventNode, ptr %25, i32 0, i32 1
  store ptr %24, ptr %26, align 8, !tbaa !12
  %27 = load ptr, ptr %6, align 8, !tbaa !5
  %28 = load ptr, ptr %4, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.IntersectionEventNode, ptr %28, i32 0, i32 1
  store ptr %27, ptr %29, align 8, !tbaa !12
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  %30 = load ptr, ptr %3, align 8, !tbaa !5
  %31 = getelementptr inbounds %struct.IntersectionEventNode, ptr %30, i32 0, i32 2
  %32 = load i32, ptr %31, align 8, !tbaa !13
  store i32 %32, ptr %7, align 4, !tbaa !14
  %33 = load ptr, ptr %4, align 8, !tbaa !5
  %34 = getelementptr inbounds %struct.IntersectionEventNode, ptr %33, i32 0, i32 2
  %35 = load i32, ptr %34, align 8, !tbaa !13
  %36 = load ptr, ptr %3, align 8, !tbaa !5
  %37 = getelementptr inbounds %struct.IntersectionEventNode, ptr %36, i32 0, i32 2
  store i32 %35, ptr %37, align 8, !tbaa !13
  %38 = load i32, ptr %7, align 4, !tbaa !14
  %39 = load ptr, ptr %4, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.IntersectionEventNode, ptr %39, i32 0, i32 2
  store i32 %38, ptr %40, align 8, !tbaa !13
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  ret void
}

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

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

attributes #0 = { 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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/C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"IntersectionEventNode", !6, i64 0, !6, i64 8, !11, i64 16, !6, i64 24}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, i64 8}
!13 = !{!10, !11, i64 16}
!14 = !{!11, !11, 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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
define dso_local void @IntersectionEventNode_swapData(ptr nocapture noundef %0, ptr nocapture noundef %1) local_unnamed_addr #0 {
  %3 = load <2 x ptr>, ptr %1, align 8, !tbaa !5
  %4 = load <2 x ptr>, ptr %0, align 8, !tbaa !5
  store <2 x ptr> %3, ptr %0, align 8, !tbaa !5
  store <2 x ptr> %4, ptr %1, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %0, i64 16
  %6 = load i32, ptr %5, align 8, !tbaa !9
  %7 = getelementptr inbounds i8, ptr %1, i64 16
  %8 = load i32, ptr %7, align 8, !tbaa !9
  store i32 %8, ptr %5, align 8, !tbaa !9
  store i32 %6, ptr %7, align 8, !tbaa !9
  ret void
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) 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" }

!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/C++ TBAA"}
!9 = !{!10, !11, i64 16}
!10 = !{!"IntersectionEventNode", !6, i64 0, !6, i64 8, !11, i64 16, !6, i64 24}
!11 = !{!"int", !7, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SLPVectorizerPass,SROAPass