; LLVM IR from rociodellasala/TP3_SO :: Kernel (heap)

; 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.ProcessSlot = type { ptr, %struct.Process }
%struct.Process = type { i32, i32, [30 x i32], i32, i32, [50 x i8], [20 x ptr], i32, ptr, ptr, ptr, [10 x ptr], i32, ptr, ptr }

; 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: nounwind uwtable
define dso_local void @releasePipeSlot(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  store i32 0, ptr %3, align 4, !tbaa !9
  br label %4

4:                                                ; preds = %19, %1
  %5 = load i32, ptr %3, align 4, !tbaa !9
  %6 = load ptr, ptr %2, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.ProcessSlot, ptr %6, i32 0, i32 1
  %8 = getelementptr inbounds %struct.Process, ptr %7, i32 0, i32 12
  %9 = load i32, ptr %8, align 8, !tbaa !11
  %10 = icmp slt i32 %5, %9
  br i1 %10, label %11, label %22

11:                                               ; preds = %4
  %12 = load ptr, ptr %2, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.ProcessSlot, ptr %12, i32 0, i32 1
  %14 = getelementptr inbounds %struct.Process, ptr %13, i32 0, i32 11
  %15 = load i32, ptr %3, align 4, !tbaa !9
  %16 = sext i32 %15 to i64
  %17 = getelementptr inbounds [10 x ptr], ptr %14, i64 0, i64 %16
  %18 = load ptr, ptr %17, align 8, !tbaa !5
  call void @releasePipeStruct(ptr noundef %18)
  br label %19

19:                                               ; preds = %11
  %20 = load i32, ptr %3, align 4, !tbaa !9
  %21 = add nsw i32 %20, 1
  store i32 %21, ptr %3, align 4, !tbaa !9
  br label %4, !llvm.loop !14

22:                                               ; preds = %4
  %23 = load ptr, ptr %2, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.ProcessSlot, ptr %23, i32 0, i32 1
  %25 = getelementptr inbounds %struct.Process, ptr %24, i32 0, i32 13
  %26 = load ptr, ptr %25, align 8, !tbaa !16
  call void @releasePipeStruct(ptr noundef %26)
  %27 = load ptr, ptr %2, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.ProcessSlot, ptr %27, i32 0, i32 1
  %29 = getelementptr inbounds %struct.Process, ptr %28, i32 0, i32 14
  %30 = load ptr, ptr %29, align 8, !tbaa !17
  call void @releasePipeStruct(ptr noundef %30)
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  ret void
}

; Function Attrs: nounwind uwtable
declare dso_local void @releasePipeStruct(ptr noundef) #1

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 }

!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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 472}
!12 = !{!"ProcessSlot", !6, i64 0, !13, i64 8}
!13 = !{!"Process", !10, i64 0, !10, i64 4, !7, i64 8, !10, i64 128, !10, i64 132, !7, i64 136, !7, i64 192, !10, i64 352, !6, i64 360, !6, i64 368, !6, i64 376, !7, i64 384, !10, i64 464, !6, i64 472, !6, i64 480}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = !{!12, !6, i64 480}
!17 = !{!12, !6, i64 488}


; 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 @releasePipeSlot(ptr nocapture noundef readonly %0) local_unnamed_addr #0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 472
  %3 = load i32, ptr %2, align 8, !tbaa !5
  %4 = icmp sgt i32 %3, 0
  br i1 %4, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1
  %5 = getelementptr inbounds i8, ptr %0, i64 392
  br label %6

6:                                                ; preds = %.lr.ph, %6
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %6 ]
  %7 = getelementptr inbounds [10 x ptr], ptr %5, i64 0, i64 %indvars.iv
  %8 = load ptr, ptr %7, align 8, !tbaa !12
  tail call void @releasePipeStruct(ptr noundef %8)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %9 = load i32, ptr %2, align 8, !tbaa !5
  %10 = sext i32 %9 to i64
  %11 = icmp slt i64 %indvars.iv.next, %10
  br i1 %11, label %6, label %._crit_edge, !llvm.loop !13

._crit_edge:                                      ; preds = %6, %1
  %12 = getelementptr inbounds i8, ptr %0, i64 480
  %13 = load ptr, ptr %12, align 8, !tbaa !15
  tail call void @releasePipeStruct(ptr noundef %13)
  %14 = getelementptr inbounds i8, ptr %0, i64 488
  %15 = load ptr, ptr %14, align 8, !tbaa !16
  tail call void @releasePipeStruct(ptr noundef %15)
  ret void
}

; Function Attrs: nounwind uwtable
declare dso_local void @releasePipeStruct(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, !11, i64 472}
!6 = !{!"ProcessSlot", !7, i64 0, !10, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"Process", !11, i64 0, !11, i64 4, !8, i64 8, !11, i64 128, !11, i64 132, !8, i64 136, !8, i64 192, !11, i64 352, !7, i64 360, !7, i64 368, !7, i64 376, !8, i64 384, !11, i64 464, !7, i64 472, !7, i64 480}
!11 = !{!"int", !8, i64 0}
!12 = !{!7, !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = !{!6, !7, i64 480}
!16 = !{!6, !7, i64 488}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass