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libc/tests/stdlib/dynthr_mod/dynthr_mod.c: mark dummy as used

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It receives the malloc() result, and we do not want the malloc() call
to be optimized out, which is allowed for hosted compiler.  Use dummy
for actual write though.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
This commit is contained in:
Konstantin Belousov 2021-11-28 05:25:28 +02:00
parent e8b6309c70
commit a64a3b7988
1 changed files with 1 additions and 0 deletions
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lib/libc/tests/stdlib/dynthr_mod/dynthr_mod.c
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@ -51,6 +51,7 @@ mod_thread(void *ptr __unused)
char *volatile dummy; char *volatile dummy;
dummy = malloc(500); dummy = malloc(500);
*dummy = 'a';
return (NULL); return (NULL);
} }