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| author | Jakub Jelinek <jakub@redhat.com> | 2012-01-06 17:48:52 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2012-01-06 17:48:52 +0100 |
| commit | 09228fefca26ca21690426cf7fab537f93ccc6d0 (patch) | |
| tree | 0beee823e1e02bc98f55d42a7a14250ab8e846a2 /gcc | |
| parent | 4913e24c20f58de96248db4bb8506c8b2678d799 (diff) | |
| download | gcc-09228fefca26ca21690426cf7fab537f93ccc6d0.zip gcc-09228fefca26ca21690426cf7fab537f93ccc6d0.tar.gz gcc-09228fefca26ca21690426cf7fab537f93ccc6d0.tar.bz2 | |
re PR lto/51774 (FAIL: gcc.dg/lto/trans-mem-* c_lto_trans-mem-1_0.o-c_lto_trans-mem-1_1.o link, -flto -fgnu-tm)
PR lto/51774
* lto-lang.c (handle_returns_twice_attribute): New function.
(lto_attribute_table): Add returns_twice attribute.
From-SVN: r182959
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/lto/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/lto/lto-lang.c | 20 |
2 files changed, 25 insertions, 1 deletions
diff --git a/gcc/lto/ChangeLog b/gcc/lto/ChangeLog index 8882abe..825d268 100644 --- a/gcc/lto/ChangeLog +++ b/gcc/lto/ChangeLog @@ -1,3 +1,9 @@ +2012-01-06 Jakub Jelinek <jakub@redhat.com> + + PR lto/51774 + * lto-lang.c (handle_returns_twice_attribute): New function. + (lto_attribute_table): Add returns_twice attribute. + 2011-12-21 Richard Guenther <rguenther@suse.de> * lto.c (GIMPLE_REGISTER_TYPE): New define. diff --git a/gcc/lto/lto-lang.c b/gcc/lto/lto-lang.c index 0d230ee..d255e65 100644 --- a/gcc/lto/lto-lang.c +++ b/gcc/lto/lto-lang.c @@ -1,5 +1,5 @@ /* Language-dependent hooks for LTO. - Copyright 2009, 2010 Free Software Foundation, Inc. + Copyright 2009, 2010, 2011, 2012 Free Software Foundation, Inc. Contributed by CodeSourcery, Inc. This file is part of GCC. @@ -47,6 +47,7 @@ static tree handle_nothrow_attribute (tree *, tree, tree, int, bool *); static tree handle_sentinel_attribute (tree *, tree, tree, int, bool *); static tree handle_type_generic_attribute (tree *, tree, tree, int, bool *); static tree handle_transaction_pure_attribute (tree *, tree, tree, int, bool *); +static tree handle_returns_twice_attribute (tree *, tree, tree, int, bool *); static tree ignore_attribute (tree *, tree, tree, int, bool *); static tree handle_format_attribute (tree *, tree, tree, int, bool *); @@ -74,6 +75,8 @@ const struct attribute_spec lto_attribute_table[] = handle_nonnull_attribute, false }, { "nothrow", 0, 0, true, false, false, handle_nothrow_attribute, false }, + { "returns_twice", 0, 0, true, false, false, + handle_returns_twice_attribute, false }, { "sentinel", 0, 1, false, true, true, handle_sentinel_attribute, false }, { "type generic", 0, 0, false, true, true, @@ -425,6 +428,21 @@ handle_transaction_pure_attribute (tree *node, tree ARG_UNUSED (name), return NULL_TREE; } +/* Handle a "returns_twice" attribute. */ + +static tree +handle_returns_twice_attribute (tree *node, tree ARG_UNUSED (name), + tree ARG_UNUSED (args), + int ARG_UNUSED (flags), + bool * ARG_UNUSED (no_add_attrs)) +{ + gcc_assert (TREE_CODE (*node) == FUNCTION_DECL); + + DECL_IS_RETURNS_TWICE (*node) = 1; + + return NULL_TREE; +} + /* Ignore the given attribute. Used when this attribute may be usefully overridden by the target, but is not used generically. */ |