; LLVM IR from narke/Aragveli :: src/kernel/memory (pool)

; 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.pool_t = type { i64, i64, i64, i64, ptr, ptr }

; Function Attrs: nounwind uwtable
define dso_local void @pool_deallocate(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %5 = load ptr, ptr %3, align 8, !tbaa !5
  %6 = getelementptr inbounds %struct.pool_t, ptr %5, i32 0, i32 5
  %7 = load ptr, ptr %6, align 8, !tbaa !9
  %8 = icmp ne ptr %7, null
  br i1 %8, label %9, label %20

9:                                                ; preds = %2
  %10 = load ptr, ptr %3, align 8, !tbaa !5
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.pool_t, ptr %11, i32 0, i32 5
  %13 = load ptr, ptr %12, align 8, !tbaa !9
  %14 = call i32 @index_from_address(ptr noundef %10, ptr noundef %13)
  %15 = zext i32 %14 to i64
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  store i64 %15, ptr %16, align 8, !tbaa !12
  %17 = load ptr, ptr %4, align 8, !tbaa !5
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.pool_t, ptr %18, i32 0, i32 5
  store ptr %17, ptr %19, align 8, !tbaa !9
  br label %28

20:                                               ; preds = %2
  %21 = load ptr, ptr %3, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.pool_t, ptr %21, i32 0, i32 0
  %23 = load i64, ptr %22, align 8, !tbaa !13
  %24 = load ptr, ptr %4, align 8, !tbaa !5
  store i64 %23, ptr %24, align 8, !tbaa !12
  %25 = load ptr, ptr %4, align 8, !tbaa !5
  %26 = load ptr, ptr %3, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.pool_t, ptr %26, i32 0, i32 5
  store ptr %25, ptr %27, align 8, !tbaa !9
  br label %28

28:                                               ; preds = %20, %9
  %29 = load ptr, ptr %3, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.pool_t, ptr %29, i32 0, i32 2
  %31 = load i64, ptr %30, align 8, !tbaa !14
  %32 = add i64 %31, 1
  store i64 %32, ptr %30, align 8, !tbaa !14
  ret void
}

; Function Attrs: nounwind uwtable
declare hidden i32 @index_from_address(ptr noundef, ptr noundef) #0

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" }

!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 40}
!10 = !{!"", !11, i64 0, !11, i64 8, !11, i64 16, !11, i64 24, !6, i64 32, !6, i64 40}
!11 = !{!"long", !7, i64 0}
!12 = !{!11, !11, i64 0}
!13 = !{!10, !11, i64 0}
!14 = !{!10, !11, i64 16}


; 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: nounwind uwtable
define dso_local void @pool_deallocate(ptr noundef %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %0, i64 40
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %.not = icmp eq ptr %4, null
  br i1 %.not, label %8, label %5

5:                                                ; preds = %2
  %6 = tail call i32 @index_from_address(ptr noundef nonnull %0, ptr noundef nonnull %4)
  %7 = zext i32 %6 to i64
  br label %10

8:                                                ; preds = %2
  %9 = load i64, ptr %0, align 8, !tbaa !11
  br label %10

10:                                               ; preds = %8, %5
  %storemerge = phi i64 [ %9, %8 ], [ %7, %5 ]
  store i64 %storemerge, ptr %1, align 8, !tbaa !12
  store ptr %1, ptr %3, align 8, !tbaa !5
  %11 = getelementptr inbounds i8, ptr %0, i64 16
  %12 = load i64, ptr %11, align 8, !tbaa !13
  %13 = add i64 %12, 1
  store i64 %13, ptr %11, align 8, !tbaa !13
  ret void
}

; Function Attrs: nounwind uwtable
declare hidden i32 @index_from_address(ptr noundef, ptr noundef) local_unnamed_addr #0

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" }

!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 40}
!6 = !{!"", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !10, i64 32, !10, i64 40}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !7, i64 0}
!12 = !{!7, !7, i64 0}
!13 = !{!6, !7, i64 16}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InstCombinePass,SROAPass,TailCallElimPass