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

; 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.CollisionWorld = type { ptr, i32, i32, i32 }

@.str = external hidden unnamed_addr constant [13 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [163 x i8], align 1
@__PRETTY_FUNCTION__.CollisionWorld_new = external hidden unnamed_addr constant [55 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local ptr @CollisionWorld_new(i32 noundef %0) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  %6 = load i32, ptr %3, align 4, !tbaa !5
  %7 = icmp ugt i32 %6, 0
  br i1 %7, label %8, label %9

8:                                                ; preds = %1
  br label %10

9:                                                ; preds = %1
  call void @__assert_fail(ptr noundef @.str, ptr noundef @.str.1, i32 noundef 38, ptr noundef @__PRETTY_FUNCTION__.CollisionWorld_new) #4
  unreachable

10:                                               ; preds = %8
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #5
  %11 = call noalias ptr @malloc(i64 noundef 24) #6
  store ptr %11, ptr %4, align 8, !tbaa !9
  %12 = load ptr, ptr %4, align 8, !tbaa !9
  %13 = icmp eq ptr %12, null
  br i1 %13, label %14, label %15

14:                                               ; preds = %10
  store ptr null, ptr %2, align 8
  store i32 1, ptr %5, align 4
  br label %29

15:                                               ; preds = %10
  %16 = load ptr, ptr %4, align 8, !tbaa !9
  %17 = getelementptr inbounds %struct.CollisionWorld, ptr %16, i32 0, i32 2
  store i32 0, ptr %17, align 4, !tbaa !11
  %18 = load ptr, ptr %4, align 8, !tbaa !9
  %19 = getelementptr inbounds %struct.CollisionWorld, ptr %18, i32 0, i32 3
  store i32 0, ptr %19, align 8, !tbaa !13
  %20 = load i32, ptr %3, align 4, !tbaa !5
  %21 = zext i32 %20 to i64
  %22 = mul i64 %21, 8
  %23 = call noalias ptr @malloc(i64 noundef %22) #6
  %24 = load ptr, ptr %4, align 8, !tbaa !9
  %25 = getelementptr inbounds %struct.CollisionWorld, ptr %24, i32 0, i32 0
  store ptr %23, ptr %25, align 8, !tbaa !14
  %26 = load ptr, ptr %4, align 8, !tbaa !9
  %27 = getelementptr inbounds %struct.CollisionWorld, ptr %26, i32 0, i32 1
  store i32 0, ptr %27, align 8, !tbaa !15
  %28 = load ptr, ptr %4, align 8, !tbaa !9
  store ptr %28, ptr %2, align 8
  store i32 1, ptr %5, align 4
  br label %29

29:                                               ; preds = %15, %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  %30 = load ptr, ptr %2, align 8
  ret ptr %30
}

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

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 = { noreturn 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 #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { nounwind allocsize(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 = { noreturn nounwind }
attributes #5 = { nounwind }
attributes #6 = { nounwind allocsize(0) }

!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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !6, i64 12}
!12 = !{!"CollisionWorld", !10, i64 0, !6, i64 8, !6, i64 12, !6, i64 16}
!13 = !{!12, !6, i64 16}
!14 = !{!12, !10, i64 0}
!15 = !{!12, !6, i64 8}


; 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"

@.str = external hidden unnamed_addr constant [13 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [163 x i8], align 1
@__PRETTY_FUNCTION__.CollisionWorld_new = external hidden unnamed_addr constant [55 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local noalias noundef ptr @CollisionWorld_new(i32 noundef %0) local_unnamed_addr #0 {
  %.not = icmp eq i32 %0, 0
  br i1 %.not, label %2, label %3

2:                                                ; preds = %1
  tail call void @__assert_fail(ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 38, ptr noundef nonnull @__PRETTY_FUNCTION__.CollisionWorld_new) #3
  unreachable

3:                                                ; preds = %1
  %4 = tail call noalias dereferenceable_or_null(24) ptr @malloc(i64 noundef 24) #4
  %5 = icmp eq ptr %4, null
  br i1 %5, label %13, label %6

6:                                                ; preds = %3
  %7 = getelementptr inbounds i8, ptr %4, i64 12
  store i32 0, ptr %7, align 4, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %4, i64 16
  store i32 0, ptr %8, align 8, !tbaa !11
  %9 = zext i32 %0 to i64
  %10 = shl nuw nsw i64 %9, 3
  %11 = tail call noalias ptr @malloc(i64 noundef %10) #4
  store ptr %11, ptr %4, align 8, !tbaa !12
  %12 = getelementptr inbounds i8, ptr %4, i64 8
  store i32 0, ptr %12, align 8, !tbaa !13
  br label %13

13:                                               ; preds = %3, %6
  ret ptr %4
}

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #2

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 = { noreturn 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 #2 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { noreturn nounwind }
attributes #4 = { nounwind allocsize(0) }

!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, !10, i64 12}
!6 = !{!"CollisionWorld", !7, i64 0, !10, i64 8, !10, i64 12, !10, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !10, i64 16}
!12 = !{!6, !7, i64 0}
!13 = !{!6, !10, i64 8}


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