forked from OSchip/llvm-project
74 lines
1.7 KiB
C
74 lines
1.7 KiB
C
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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// CONFIG
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#include <stdio.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <Block.h>
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int
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main(int argc, char *argv[])
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{
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__block int var = 0;
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void (^b)(void) = ^{ var++; };
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//sanity(b);
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b();
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printf("%s: success!\n", argv[0]);
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return 0;
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}
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#if 1
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/* replicated internal data structures: BEWARE, MAY CHANGE!!! */
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enum {
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BLOCK_REFCOUNT_MASK = (0xffff),
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BLOCK_NEEDS_FREE = (1 << 24),
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BLOCK_HAS_COPY_DISPOSE = (1 << 25),
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BLOCK_NO_COPY = (1 << 26), // interim byref: no copies allowed
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BLOCK_IS_GC = (1 << 27),
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BLOCK_IS_GLOBAL = (1 << 28),
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};
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struct byref_id {
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struct byref_id *forwarding;
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int flags;//refcount;
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int size;
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void (*byref_keep)(struct byref_id *dst, struct byref_id *src);
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void (*byref_destroy)(struct byref_id *);
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int var;
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};
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struct Block_basic2 {
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void *isa;
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int Block_flags; // int32_t
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int Block_size; // XXX should be packed into Block_flags
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void (*Block_invoke)(void *);
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void (*Block_copy)(void *dst, void *src);
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void (*Block_dispose)(void *);
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struct byref_id *ref;
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};
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void sanity(void *arg) {
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struct Block_basic2 *bb = (struct Block_basic2 *)arg;
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if ( ! (bb->Block_flags & BLOCK_HAS_COPY_DISPOSE)) {
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printf("missing copy/dispose helpers for byref data\n");
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exit(1);
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}
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struct byref_id *ref = bb->ref;
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if (ref->forwarding != ref) {
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printf("forwarding pointer should be %p but is %p\n", ref, ref->forwarding);
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exit(1);
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}
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}
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#endif
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