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authorIlya Enkovich <enkovich.gnu@gmail.com>2015-12-10 11:23:50 +0000
committerIlya Enkovich <ienkovich@gcc.gnu.org>2015-12-10 11:23:50 +0000
commit2dab46d5fc9f95de16bd9bf0f219be5e64324d1f (patch)
treed250e7ef3c63a1227b19ca65904ceffb04c86059 /gcc/tree-vect-stmts.c
parent17cfefad6d09fd62f70d8a8ed97772d13d1ae1b1 (diff)
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tree-vect-stmts.c (vectorizable_assignment): Support useless boolean conversion.
gcc/ * tree-vect-stmts.c (vectorizable_assignment): Support useless boolean conversion. From-SVN: r231503
Diffstat (limited to 'gcc/tree-vect-stmts.c')
-rw-r--r--gcc/tree-vect-stmts.c7
1 files changed, 6 insertions, 1 deletions
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,