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authorIain Sandoe <iains@gcc.gnu.org>2010-05-07 17:34:31 +0000
committerMike Stump <mrs@gcc.gnu.org>2010-05-07 17:34:31 +0000
commit3bd5cdeb0e00feb040e5611e584509db27eeebf8 (patch)
tree6a391fac3bf9e7c3d212062ad8e30499a91a1f68 /gcc
parent9bf4598b0df6d72a5b10dc3acf82034c42d0e220 (diff)
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re PR target/43708 (gcc.dg/pragma-darwin.c "set not used", not working with pragma)
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
Diffstat (limited to 'gcc')
-rw-r--r--gcc/ChangeLog6
-rw-r--r--gcc/config/darwin-c.c5
2 files changed, 10 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5467fa9..58a3276 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -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.
diff --git a/gcc/config/darwin-c.c b/gcc/config/darwin-c.c
index 862a1d1..bd7c987 100644
--- a/gcc/config/darwin-c.c
+++ b/gcc/config/darwin-c.c
@@ -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;