diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/tree-vect-stmts.c | 7 |
2 files changed, 11 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 0f22548..aca8e94 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2015-12-10 Ilya Enkovich <enkovich.gnu@gmail.com> + + * tree-vect-stmts.c (vectorizable_assignment): Support + useless boolean conversion. + 2015-12-10 Alan Lawrence <alan.lawrence@arm.com> * doc/install.texi: Add note against GNAT 4.8 on ARM targets. diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c index 56aa2c8..5377d15 100644 --- a/gcc/tree-vect-stmts.c +++ b/gcc/tree-vect-stmts.c @@ -4310,7 +4310,12 @@ vectorizable_assignment (gimple *stmt, gimple_stmt_iterator *gsi, /* But a conversion that does not change the bit-pattern is ok. */ && !((TYPE_PRECISION (TREE_TYPE (scalar_dest)) > TYPE_PRECISION (TREE_TYPE (op))) - && TYPE_UNSIGNED (TREE_TYPE (op)))) + && TYPE_UNSIGNED (TREE_TYPE (op))) + /* Conversion between boolean types of different sizes is + a simple assignment in case their vectypes are same + boolean vectors. */ + && (!VECTOR_BOOLEAN_TYPE_P (vectype) + || !VECTOR_BOOLEAN_TYPE_P (vectype_in))) { if (dump_enabled_p ()) dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location, |