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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)

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PR lto/51774
	* lto-lang.c (handle_returns_twice_attribute): New function.
	(lto_attribute_table): Add returns_twice attribute.

From-SVN: r182959
This commit is contained in:
Jakub Jelinek 2012-01-06 17:48:52 +01:00 committed by Jakub Jelinek
parent 4913e24c20
commit 09228fefca
2 changed files with 25 additions and 1 deletions
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6
gcc/lto/ChangeLog
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@ -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.

20
gcc/lto/lto-lang.c
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@ -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. */