; LLVM IR from aras-p/ToyPathTracer :: Cpp/Source/enkiTS/TaskScheduler.ll (ZN4enki16DefaultAllocFuncEmmPvPKci)

; 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"

; 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 nounwind uwtable
define dso_local noundef ptr @_ZN4enki16DefaultAllocFuncEmmPvPKci(i64 noundef %0, i64 noundef %1, ptr noundef %2, ptr noundef %3, i32 noundef %4) #1 {
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca ptr, align 8
  %12 = alloca i32, align 4
  store i64 %0, ptr %6, align 8, !tbaa !5
  store i64 %1, ptr %7, align 8, !tbaa !5
  store ptr %2, ptr %8, align 8, !tbaa !9
  store ptr %3, ptr %9, align 8, !tbaa !9
  store i32 %4, ptr %10, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #4
  store ptr null, ptr %11, align 8, !tbaa !9
  %13 = load i64, ptr %6, align 8, !tbaa !5
  %14 = load i64, ptr %7, align 8, !tbaa !5
  %15 = icmp ule i64 %13, %14
  br i1 %15, label %16, label %22

16:                                               ; preds = %5
  %17 = load i64, ptr %6, align 8, !tbaa !5
  %18 = icmp ule i64 %17, 8
  br i1 %18, label %19, label %22

19:                                               ; preds = %16
  %20 = load i64, ptr %7, align 8, !tbaa !5
  %21 = call noalias ptr @malloc(i64 noundef %20) #5
  store ptr %21, ptr %11, align 8, !tbaa !9
  br label %26

22:                                               ; preds = %16, %5
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #4
  %23 = load i64, ptr %6, align 8, !tbaa !5
  %24 = load i64, ptr %7, align 8, !tbaa !5
  %25 = call i32 @posix_memalign(ptr noundef %11, i64 noundef %23, i64 noundef %24) #4
  store i32 %25, ptr %12, align 4, !tbaa !11
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #4
  br label %26

26:                                               ; preds = %22, %19
  %27 = load ptr, ptr %11, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #4
  ret ptr %27
}

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #2

; Function Attrs: nounwind
declare i32 @posix_memalign(ptr noundef, i64 noundef, i64 noundef) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #3 = { 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 #4 = { nounwind }
attributes #5 = { 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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

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

; Function Attrs: mustprogress nofree nounwind uwtable
define dso_local noundef ptr @_ZN4enki16DefaultAllocFuncEmmPvPKci(i64 noundef %0, i64 noundef %1, ptr nocapture noundef readnone %2, ptr nocapture noundef readnone %3, i32 noundef %4) local_unnamed_addr #1 {
  %6 = alloca ptr, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #4
  store ptr null, ptr %6, align 8, !tbaa !5
  %7 = icmp ule i64 %0, %1
  %8 = icmp ult i64 %0, 9
  %or.cond = and i1 %8, %7
  br i1 %or.cond, label %9, label %11

9:                                                ; preds = %5
  %10 = tail call noalias ptr @malloc(i64 noundef %1) #5
  br label %13

11:                                               ; preds = %5
  %12 = call i32 @posix_memalign(ptr noundef nonnull %6, i64 noundef %0, i64 noundef %1) #4
  %.pre = load ptr, ptr %6, align 8, !tbaa !5
  br label %13

13:                                               ; preds = %11, %9
  %14 = phi ptr [ %.pre, %11 ], [ %10, %9 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #4
  ret ptr %14
}

; 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

; Function Attrs: nofree nounwind
declare i32 @posix_memalign(ptr noundef, i64 noundef, i64 noundef) local_unnamed_addr #3

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nofree 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 = { 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 = { nofree 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 #4 = { nounwind }
attributes #5 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Effective O3 passes: DSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass