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| author | Martin Liska <mliska@suse.cz> | 2017-09-12 16:24:29 +0200 |
|---|---|---|
| committer | Martin Liska <marxin@gcc.gnu.org> | 2017-09-12 14:24:29 +0000 |
| commit | 13bdca744bda9321d6e0f4beca7bf9ac2e0870c0 (patch) | |
| tree | 9a86fbfc054247f37f8de32b3f1a30ec141c2e8e /gcc/attribs.c | |
| parent | 29545149bf8ca8c89a9a7d32fe7fdb8e9294759c (diff) | |
| download | gcc-13bdca744bda9321d6e0f4beca7bf9ac2e0870c0.zip gcc-13bdca744bda9321d6e0f4beca7bf9ac2e0870c0.tar.gz gcc-13bdca744bda9321d6e0f4beca7bf9ac2e0870c0.tar.bz2 | |
Reduce lookup_attribute memory footprint.
2017-09-12 Martin Liska <mliska@suse.cz>
* attribs.c (private_lookup_attribute): New function.
* attribs.h (private_lookup_attribute): Declared here.
(lookup_attribute): Called from this place.
From-SVN: r252022
Diffstat (limited to 'gcc/attribs.c')
| -rw-r--r-- | gcc/attribs.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/attribs.c b/gcc/attribs.c index b8f58a7..4ef35b8 100644 --- a/gcc/attribs.c +++ b/gcc/attribs.c @@ -1584,3 +1584,25 @@ attribute_list_contained (const_tree l1, const_tree l2) return 1; } + +/* The backbone of lookup_attribute(). ATTR_LEN is the string length + of ATTR_NAME, and LIST is not NULL_TREE. + + The function is called from lookup_attribute in order to optimize + for size. */ + +tree +private_lookup_attribute (const char *attr_name, size_t attr_len, tree list) +{ + while (list) + { + tree attr = get_attribute_name (list); + size_t ident_len = IDENTIFIER_LENGTH (attr); + if (cmp_attribs (attr_name, attr_len, IDENTIFIER_POINTER (attr), + ident_len)) + break; + list = TREE_CHAIN (list); + } + + return list; +} |