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| author | Jakub Jelinek <jakub@redhat.com> | 2010-06-07 19:49:06 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2010-06-07 19:49:06 +0200 |
| commit | 026698d28e6eac591edfc8b1fd397e73b0503c56 (patch) | |
| tree | 9683a15333492961769147bbff3993b18d63fafa /gcc | |
| parent | 75522f217e551de6b210c2c2e963a8386344ae99 (diff) | |
| download | gcc-026698d28e6eac591edfc8b1fd397e73b0503c56.zip gcc-026698d28e6eac591edfc8b1fd397e73b0503c56.tar.gz gcc-026698d28e6eac591edfc8b1fd397e73b0503c56.tar.bz2 | |
re PR c++/44443 (-Wunused-but-set-variable problem with unused attribute on type)
PR c++/44443
* decl.c (initialize_local_var): If TREE_USED is set on the type,
set also DECL_READ_P on the decl.
* c-c++-common/Wunused-var-11.c: New test.
From-SVN: r160387
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/cp/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/cp/decl.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/c-c++-common/Wunused-var-11.c | 12 |
4 files changed, 25 insertions, 0 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index 6e4c35e..622a793 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,3 +1,9 @@ +2010-06-07 Jakub Jelinek <jakub@redhat.com> + + PR c++/44443 + * decl.c (initialize_local_var): If TREE_USED is set on the type, + set also DECL_READ_P on the decl. + 2010-05-25 Dodji Seketeli <dodji@redhat.com> PR c++/44188 diff --git a/gcc/cp/decl.c b/gcc/cp/decl.c index c9f864a..171e160 100644 --- a/gcc/cp/decl.c +++ b/gcc/cp/decl.c @@ -5508,6 +5508,8 @@ initialize_local_var (tree decl, tree init) /* Compute and store the initial value. */ already_used = TREE_USED (decl) || TREE_USED (type); + if (TREE_USED (type)) + DECL_READ_P (decl) = 1; /* Generate a cleanup, if necessary. */ cleanup = cxx_maybe_build_cleanup (decl); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 392e0bf..a2ac156 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2010-06-07 Jakub Jelinek <jakub@redhat.com> + + PR c++/44443 + * c-c++-common/Wunused-var-11.c: New test. + 2010-06-07 Jan Hubicka <jh@suse.cz> * gcc.dg/ipa/pure-const-1.c: New testcase. diff --git a/gcc/testsuite/c-c++-common/Wunused-var-11.c b/gcc/testsuite/c-c++-common/Wunused-var-11.c new file mode 100644 index 0000000..a59ef81 --- /dev/null +++ b/gcc/testsuite/c-c++-common/Wunused-var-11.c @@ -0,0 +1,12 @@ +/* PR c++/44443 */ +/* { dg-options "-Wunused" } */ +/* { dg-do compile } */ + +int i; + +void +f1 () +{ + const int * __attribute__((unused)) a = &i; + const int *b __attribute__((unused)) = &i; +} |