text: /* cilk-abi-vla-internal.c        -*-C++-*-
   *
   *************************************************************************
   *
   *  Copyright (C) 2013-2016, Intel Corporation
   *  All rights reserved.
   *  
   *  Redistribution and use in source and binary forms, with or without
   *  modification, are permitted provided that the following conditions
   *  are met:
   *  
   *    * Redistributions of source code must retain the above copyright
   *      notice, this list of conditions and the following disclaimer.
   *    * Redistributions in binary form must reproduce the above copyright
   *      notice, this list of conditions and the following disclaimer in
   *      the documentation and/or other materials provided with the
   *      distribution.
   *    * Neither the name of Intel Corporation nor the names of its
   *      contributors may be used to endorse or promote products derived
   *      from this software without specific prior written permission.
   *  
   *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   *  HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
   *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
   *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
   *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
   *  AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   *  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
   *  WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   *  POSSIBILITY OF SUCH DAMAGE.
   *  
   *  *********************************************************************
   *  
   *  PLEASE NOTE: This file is a downstream copy of a file mainitained in
   *  a repository at cilkplus.org. Changes made to this file that are not
   *  submitted through the contribution process detailed at
   *  http://www.cilkplus.org/submit-cilk-contribution will be lost the next
   *  time that a new version is released. Changes only submitted to the
   *  GNU compiler collection or posted to the git repository at
   *  https://bitbucket.org/intelcilkruntime/intel-cilk-runtime.git are
   *  not tracked.
   *  
   *  We welcome your contributions to this open source project. Thank you
   *  for your assistance in helping us improve Cilk Plus.
   **************************************************************************/
  
  /*
   * These functions are provided in their own compilation unit so I can debug
   * them.  cilk-abi-vla.c must always be compiled with optimization on so that
   * inlining occurs.
   */
  
  #include "internal/abi.h"
  #include "cilk-abi-vla-internal.h"
  #include "bug.h"
  #include "full_frame.h"
  #include "local_state.h"
  
  #include <stdlib.h>
  #include <stdint.h>
  
  #include "bug.h"
  
  void *vla_internal_heap_alloc(__cilkrts_stack_frame *sf,
                                size_t full_size,
                                uint32_t align)
  {
      return malloc(full_size);
  }
  
  void vla_internal_heap_free(void *t, size_t size)
  {
      free(t);
  }
  
  void vla_free_from_original_stack(__cilkrts_stack_frame *sf,
                                    size_t full_size)
  {
      // The __cilkrts_stack_frame must be initialized
      CILK_ASSERT(sf->worker);
  
  #if 1
      // Add full_size to ff->sync_sp so that when we return, the VLA will no
      // longer be allocated on the stack
      __cilkrts_adjust_stack(sf->worker->l->frame_ff, full_size);
  #else
      // Inline __cilkrts_adjust_stack for Kevin
      full_frame *ff = sf->worker->l->frame_ff;
      ff->sync_sp = ff->sync_sp + full_size;
  #endif
  }
  