; LLVM IR from SOHNE/Dura2D :: src/common/d2BlockAllocator.ll (ZN16d2BlockAllocatorC2Ev)

; 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.d2BlockAllocator = type { ptr, i32, i32, [14 x ptr] }

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN16d2BlockAllocatorC2Ev(ptr noundef nonnull align 8 dereferenceable(128) %0) unnamed_addr #0 align 2 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8
  %4 = getelementptr inbounds %class.d2BlockAllocator, ptr %3, i32 0, i32 0
  store ptr null, ptr %4, align 8, !tbaa !9
  %5 = getelementptr inbounds %class.d2BlockAllocator, ptr %3, i32 0, i32 1
  store i32 0, ptr %5, align 8, !tbaa !12
  %6 = getelementptr inbounds %class.d2BlockAllocator, ptr %3, i32 0, i32 2
  store i32 0, ptr %6, align 4, !tbaa !13
  %7 = getelementptr inbounds %class.d2BlockAllocator, ptr %3, i32 0, i32 3
  store ptr null, ptr %7, align 8, !tbaa !5
  %8 = getelementptr inbounds ptr, ptr %7, i64 1
  %9 = getelementptr inbounds ptr, ptr %7, i64 14
  br label %10

10:                                               ; preds = %10, %1
  %11 = phi ptr [ %8, %1 ], [ %12, %10 ]
  store ptr null, ptr %11, align 8, !tbaa !5
  %12 = getelementptr inbounds ptr, ptr %11, i64 1
  %13 = icmp eq ptr %12, %9
  br i1 %13, label %14, label %10

14:                                               ; preds = %10
  %15 = getelementptr inbounds %class.d2BlockAllocator, ptr %3, i32 0, i32 2
  store i32 128, ptr %15, align 4, !tbaa !13
  %16 = getelementptr inbounds %class.d2BlockAllocator, ptr %3, i32 0, i32 1
  store i32 0, ptr %16, align 8, !tbaa !12
  %17 = getelementptr inbounds %class.d2BlockAllocator, ptr %3, i32 0, i32 2
  %18 = load i32, ptr %17, align 4, !tbaa !13
  %19 = sext i32 %18 to i64
  %20 = mul i64 %19, 16
  %21 = call noalias ptr @malloc(i64 noundef %20) #3
  %22 = getelementptr inbounds %class.d2BlockAllocator, ptr %3, i32 0, i32 0
  store ptr %21, ptr %22, align 8, !tbaa !9
  %23 = getelementptr inbounds %class.d2BlockAllocator, ptr %3, i32 0, i32 0
  %24 = load ptr, ptr %23, align 8, !tbaa !9
  %25 = getelementptr inbounds %class.d2BlockAllocator, ptr %3, i32 0, i32 2
  %26 = load i32, ptr %25, align 4, !tbaa !13
  %27 = sext i32 %26 to i64
  %28 = mul i64 %27, 16
  call void @llvm.memset.p0.i64(ptr align 8 %24, i8 0, i64 %28, i1 false)
  %29 = getelementptr inbounds %class.d2BlockAllocator, ptr %3, i32 0, i32 3
  %30 = getelementptr inbounds [14 x ptr], ptr %29, i64 0, i64 0
  call void @llvm.memset.p0.i64(ptr align 8 %30, i8 0, i64 112, i1 false)
  ret void
}

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #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 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 #2 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { 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"}
!9 = !{!10, !6, i64 0}
!10 = !{!"_ZTS16d2BlockAllocator", !6, i64 0, !11, i64 8, !11, i64 12, !7, i64 16}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !11, i64 8}
!13 = !{!10, !11, i64 12}


; 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 nounwind willreturn memory(argmem: write, inaccessiblemem: readwrite) uwtable
define dso_local void @_ZN16d2BlockAllocatorC2Ev(ptr nocapture noundef nonnull writeonly align 8 dereferenceable(128) %0) unnamed_addr #0 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 8
  %3 = getelementptr inbounds i8, ptr %0, i64 12
  %4 = getelementptr inbounds i8, ptr %0, i64 16
  store i32 128, ptr %3, align 4, !tbaa !5
  store i32 0, ptr %2, align 8, !tbaa !11
  %calloc = tail call dereferenceable_or_null(2048) ptr @calloc(i64 1, i64 2048)
  store ptr %calloc, ptr %0, align 8, !tbaa !12
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(112) %4, i8 0, i64 112, i1 false)
  ret void
}

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

; Function Attrs: nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @calloc(i64 noundef, i64 noundef) local_unnamed_addr #2

attributes #0 = { mustprogress nofree nounwind willreturn memory(argmem: write, inaccessiblemem: 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" }
attributes #1 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #2 = { nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" }

!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 = !{!"_ZTS16d2BlockAllocator", !7, i64 0, !10, i64 8, !10, i64 12, !8, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !10, i64 8}
!12 = !{!6, !7, i64 0}


; Effective O3 passes: DSEPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LoopIdiomRecognizePass,MemCpyOptPass,PostOrderFunctionAttrsPass,SROAPass,TailCallElimPass