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re PR target/43708 (gcc.dg/pragma-darwin.c "set not used", not working with pragma)

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PR target/43708
	* config/darwin-c.c (darwin_pragma_unused): Set DECL_READ_P
	in addition to TREE_USED, to avoid "set but unused" warnings.

From-SVN: r159164
This commit is contained in:
Iain Sandoe 2010-05-07 17:34:31 +00:00 • committed by Mike Stump
parent 9bf4598b0d
commit 3bd5cdeb0e
2 changed files with 10 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2010-05-07 Iain Sandoe <iains@gcc.gnu.org>
PR target/43708
* config/darwin-c.c (darwin_pragma_unused): Set DECL_READ_P
in addition to TREE_USED, to avoid "set but unused" warnings.
2010-05-07 Changpeng Fang <changpeng.fang@amd.com>
* tree-ssa-loop-prefetch.c (TRIP_COUNT_TO_AHEAD_RATIO): New.

5
gcc/config/darwin-c.c
View file

@ -144,7 +144,10 @@ darwin_pragma_unused (cpp_reader *pfile ATTRIBUTE_UNUSED)
tree local = lookup_name (decl);
if (local && (TREE_CODE (local) == PARM_DECL
|| TREE_CODE (local) == VAR_DECL))
TREE_USED (local) = 1;
{
TREE_USED (local) = 1;
DECL_READ_P (local) = 1;
}
tok = pragma_lex (&x);
if (tok != CPP_COMMA)
break;