Retro68/gcc/libcilkrts/runtime/cilk-abi-vla-internal.c

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2014-09-21 17:33:12 +00:00
/* cilk-abi-vla-internal.c -*-C++-*-
*
*************************************************************************
*
* @copyright
* Copyright (C) 2013, Intel Corporation
* All rights reserved.
*
* @copyright
* 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.
*
* @copyright
* 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.
**************************************************************************/
/*
* 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
}