OpenE2K
/
gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

expr.c (expand_expr): Output partially zeroed out vectors with output_constant_def. 

2002-05-31  Aldy Hernandez  <aldyh@redhat.com>

        * expr.c (expand_expr): Output partially zeroed out vectors with
        output_constant_def.

From-SVN: r54080
This commit is contained in:
Aldy Hernandez 2002-05-31 02:21:31 +00:00 committed by Aldy Hernandez
parent b4eb03fef0
commit 00182e1edc
2 changed files with 15 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
gcc/ChangeLog
View File

@ -1,3 +1,8 @@
2002-05-31 Aldy Hernandez <aldyh@redhat.com>
* expr.c (expand_expr): Output partially zeroed out vectors with
output_constant_def.
2002-05-30 Jason Thorpe <thorpej@wasabisystems.com>
* config.gcc (sh[123456789l]*-*-*): Set cpu_type to sh.

12
gcc/expr.c
View File

@ -6758,7 +6758,13 @@ expand_expr (exp, target, tmode, modifier)
fold. Likewise, if we have a target we can use, it is best to
store directly into the target unless the type is large enough
that memcpy will be used. If we are making an initializer and
all operands are constant, put it in memory as well. */
all operands are constant, put it in memory as well.
FIXME: Avoid trying to fill vector constructors piece-meal.
Output them with output_constant_def below unless we're sure
they're zeros. This should go away when vector initializers
are treated like VECTOR_CST instead of arrays.
*/
else if ((TREE_STATIC (exp)
&& ((mode == BLKmode
&& ! (target != 0 && safe_from_p (target, exp, 1)))
@ -6767,7 +6773,9 @@ expand_expr (exp, target, tmode, modifier)
&& (! MOVE_BY_PIECES_P
(tree_low_cst (TYPE_SIZE_UNIT (type), 1),
TYPE_ALIGN (type)))
&& ! mostly_zeros_p (exp))))
&& ((TREE_CODE (type) == VECTOR_TYPE
&& !is_zeros_p (exp))
|| ! mostly_zeros_p (exp)))))
|| (modifier == EXPAND_INITIALIZER && TREE_CONSTANT (exp)))
{
rtx constructor = output_constant_def (exp, 1);