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| author | Jakub Jelinek <jakub@redhat.com> | 2010-05-04 21:08:37 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2010-05-04 21:08:37 +0200 |
| commit | 97e3c92355da5e885866e65dd1c1c6903f8611c2 (patch) | |
| tree | 712eb1e1c6c928d4e2b998213eec287d48427ae5 | |
| parent | b5c0a77ec9b02f51b566ffbca83d02333932c064 (diff) | |
| download | gcc-97e3c92355da5e885866e65dd1c1c6903f8611c2.zip gcc-97e3c92355da5e885866e65dd1c1c6903f8611c2.tar.gz gcc-97e3c92355da5e885866e65dd1c1c6903f8611c2.tar.bz2 | |
re PR c/43981 (-Wunused-but-set-variable does not consider array sizing use of a variable)
PR c/43981
* c-parser.c (c_parser_direct_declarator_inner): Call mark_exp_read
on dimen.
* gcc.dg/Wunused-var-8.c: New test.
From-SVN: r159044
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/c-parser.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/Wunused-var-8.c | 15 |
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]; +} |