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-rw-r--r--gcc/ChangeLog6
-rw-r--r--gcc/c-parser.c2
-rw-r--r--gcc/testsuite/ChangeLog5
-rw-r--r--gcc/testsuite/gcc.dg/Wunused-var-8.c15
4 files changed, 28 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 6179743..21f145e9 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2010-05-04 Jakub Jelinek <jakub@redhat.com>
+
+ PR c/43981
+ * c-parser.c (c_parser_direct_declarator_inner): Call mark_exp_read
+ on dimen.
+
2010-05-04 H.J. Lu <hongjiu.lu@intel.com>
PR target/43799
diff --git a/gcc/c-parser.c b/gcc/c-parser.c
index cbdee1e..e5440d4 100644
--- a/gcc/c-parser.c
+++ b/gcc/c-parser.c
@@ -2474,6 +2474,8 @@ c_parser_direct_declarator_inner (c_parser *parser, bool id_present,
"expected %<]%>");
return NULL;
}
+ if (dimen)
+ mark_exp_read (dimen);
declarator = build_array_declarator (brace_loc, dimen, quals_attrs,
static_seen, star_seen);
if (declarator == NULL)
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 5b213ca..4b2fe7d 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2010-05-04 Jakub Jelinek <jakub@redhat.com>
+
+ PR c/43981
+ * gcc.dg/Wunused-var-8.c: New test.
+
2010-05-04 Jason Merrill <jason@redhat.com>
PR c++/38064
diff --git a/gcc/testsuite/gcc.dg/Wunused-var-8.c b/gcc/testsuite/gcc.dg/Wunused-var-8.c
new file mode 100644
index 0000000..1217719
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/Wunused-var-8.c
@@ -0,0 +1,15 @@
+/* PR c/43981 */
+/* { dg-do compile } */
+/* { dg-options "-Wunused" } */
+
+void g (char *);
+
+char
+f (int a)
+{
+ int len = a * 3;
+ char t[len];
+
+ g (t);
+ return t[0];
+}