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1 files changed, 83 insertions, 0 deletions
diff --git a/libcilkrts/runtime/cilk-abi-vla-internal.c b/libcilkrts/runtime/cilk-abi-vla-internal.c
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+/* 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
+}