diff options
| author | bergner <bergner@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-11-01 02:48:07 +0000 |
|---|---|---|
| committer | bergner <bergner@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-11-01 02:48:07 +0000 |
| commit | ce281ff30962b2b133ebf345e4a8654ad39ad768 (patch) | |
| tree | e8a046ccfe6058ad71ebb7cc94207dd63b12ae0d /gcc | |
| parent | ad20e16565562dbeed844b6c317e7f980da5e0d0 (diff) | |
| download | gcc-ce281ff30962b2b133ebf345e4a8654ad39ad768.tar.gz | |
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/trunk@193058 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/tree-vect-data-refs.c | 7 |
2 files changed, 13 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 9db326f627a..53df5c052a4 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +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. + 2012-10-31 Dehao Chen <dehao@google.com> * tree-eh.c (do_return_redirection): Set location for jump statement. diff --git a/gcc/tree-vect-data-refs.c b/gcc/tree-vect-data-refs.c index 5866b0652d0..445f2cbe712 100644 --- a/gcc/tree-vect-data-refs.c +++ b/gcc/tree-vect-data-refs.c @@ -4858,6 +4858,13 @@ vect_can_force_dr_alignment_p (const_tree decl, unsigned int alignment) if (DECL_PRESERVE_P (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 |