diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/c-decl.c | 6 | ||||
| -rw-r--r-- | gcc/cp/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/cp/decl.c | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/warn/pr34985.C | 9 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr34985.c | 9 |
7 files changed, 46 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3766bb6..6533ff3 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2008-07-29 Manuel Lopez-Ibanez <manu@gcc.gnu.org> + + PR 34985 + * c-decl.c (merge_decls): Merge USED flags. + 2008-07-29 Kaz Kojima <kkojima@gcc.gnu.org> * config/sh/sh.c (sh_gimplify_va_arg_expr): Unshare the addr, diff --git a/gcc/c-decl.c b/gcc/c-decl.c index bdb6819..7929aa8 100644 --- a/gcc/c-decl.c +++ b/gcc/c-decl.c @@ -1862,6 +1862,12 @@ merge_decls (tree newdecl, tree olddecl, tree newtype, tree oldtype) extern_changed = DECL_EXTERNAL (olddecl) && !DECL_EXTERNAL (newdecl); + /* Merge the USED information. */ + if (TREE_USED (olddecl)) + TREE_USED (newdecl) = 1; + else if (TREE_USED (newdecl)) + TREE_USED (olddecl) = 1; + /* Copy most of the decl-specific fields of NEWDECL into OLDDECL. But preserve OLDDECL's DECL_UID and DECL_CONTEXT. */ { diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index bbb23ee..b441084 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,3 +1,8 @@ +2008-07-29 Manuel Lopez-Ibanez <manu@gcc.gnu.org> + + PR 34985 + * decl.c (duplicate_decls): Merge USED flags. + 2008-07-27 Jason Merrill <jason@redhat.com> PR c++/36943 diff --git a/gcc/cp/decl.c b/gcc/cp/decl.c index 2d9ccba..248b9b7 100644 --- a/gcc/cp/decl.c +++ b/gcc/cp/decl.c @@ -2056,6 +2056,12 @@ duplicate_decls (tree newdecl, tree olddecl, bool newdecl_is_friend) ggc_free (DECL_LANG_SPECIFIC (olddecl)); } + /* Merge the USED information. */ + if (TREE_USED (olddecl)) + TREE_USED (newdecl) = 1; + else if (TREE_USED (newdecl)) + TREE_USED (olddecl) = 1; + if (TREE_CODE (newdecl) == FUNCTION_DECL) { int function_size; diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index e6ec66e..ed53441 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2008-07-29 Manuel Lopez-Ibanez <manu@gcc.gnu.org> + + PR 34985 + * gcc.dg/pr34985.c: New. + * g++.dg/warn/pr34985.C: New. + 2008-07-29 Daniel Kraft <d@domob.eu> PR fortran/36403 diff --git a/gcc/testsuite/g++.dg/warn/pr34985.C b/gcc/testsuite/g++.dg/warn/pr34985.C new file mode 100644 index 0000000..5643750 --- /dev/null +++ b/gcc/testsuite/g++.dg/warn/pr34985.C @@ -0,0 +1,9 @@ +/* PR34985: Warning "defined but not used" despite __attribute__((__used__)) */ +/* { dg-do compile } */ +/* { dg-options "-Wall -Wextra -O2" } */ +static void xxyyzz (void); +static void __attribute__((__used__)) xxyyzz(void) +{ +} + +/* { dg-final { scan-assembler "xxyyzz" } } */ diff --git a/gcc/testsuite/gcc.dg/pr34985.c b/gcc/testsuite/gcc.dg/pr34985.c new file mode 100644 index 0000000..5643750 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr34985.c @@ -0,0 +1,9 @@ +/* PR34985: Warning "defined but not used" despite __attribute__((__used__)) */ +/* { dg-do compile } */ +/* { dg-options "-Wall -Wextra -O2" } */ +static void xxyyzz (void); +static void __attribute__((__used__)) xxyyzz(void) +{ +} + +/* { dg-final { scan-assembler "xxyyzz" } } */ |