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| author | bergner <bergner@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-11-03 14:02:13 +0000 |
|---|---|---|
| committer | bergner <bergner@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-11-03 14:02:13 +0000 |
| commit | 618a6085f63455f5133da321449f440803367e42 (patch) | |
| tree | aaf50b3eaf544fd364f68471fa4b13bf590b6635 /gcc/tree-vect-data-refs.c | |
| parent | 55e2967946fa4e76a345f55b84573400db096c2a (diff) | |
| download | gcc-618a6085f63455f5133da321449f440803367e42.tar.gz | |
Backport from mainline
2012-10-31 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/53708
* tree-vect-data-refs.c (vect_can_force_dr_alignment_p): Preserve
user-supplied alignment when used with an explicit section name.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_7-branch@193121 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-vect-data-refs.c')
| -rw-r--r-- | gcc/tree-vect-data-refs.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/tree-vect-data-refs.c b/gcc/tree-vect-data-refs.c index 79c0f1dab7b..b08d7bbdcd1 100644 --- a/gcc/tree-vect-data-refs.c +++ b/gcc/tree-vect-data-refs.c @@ -4574,6 +4574,13 @@ vect_can_force_dr_alignment_p (const_tree decl, unsigned int alignment) if (TREE_ASM_WRITTEN (decl)) return false; + /* Do not override explicit alignment set by the user when an explicit + section name is also used. This is a common idiom used by many + software projects. */ + if (DECL_SECTION_NAME (decl) != NULL_TREE + && !DECL_HAS_IMPLICIT_SECTION_NAME_P (decl)) + return false; + if (TREE_STATIC (decl)) return (alignment <= MAX_OFILE_ALIGNMENT); else |