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builtins.c (expand_builtin_sync_operation): Fold nand to and for constants.

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* builtins.c (expand_builtin_sync_operation): Fold nand to and
        for constants.

From-SVN: r98324
This commit is contained in:
Richard Henderson 2005-04-18 09:02:14 -07:00 committed by Richard Henderson
parent a45f6936f4
commit e2939e7513
2 changed files with 13 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2005-04-18 Richard Henderson <rth@redhat.com>
* builtins.c (expand_builtin_sync_operation): Fold nand to and
for constants.
2005-04-18 Devang Patel <dpatel@apple.com>
* config/rs6000/atlivec.md (mulv4si3): New pattern.

9
gcc/builtins.c
View File

@ -5255,13 +5255,20 @@ expand_builtin_sync_operation (tree arglist, enum rtx_code code, bool after,
{
enum machine_mode mode;
rtx addr, val, mem;
tree valt;
/* Expand the operands. */
addr = expand_expr (TREE_VALUE (arglist), NULL, Pmode, EXPAND_SUM);
mode = TYPE_MODE (TREE_TYPE (TREE_TYPE (TREE_VALUE (arglist))));
arglist = TREE_CHAIN (arglist);
val = expand_expr (TREE_VALUE (arglist), NULL, mode, EXPAND_NORMAL);
valt = TREE_VALUE (arglist);
if (code == NOT && TREE_CONSTANT (valt))
{
valt = fold_build1 (BIT_NOT_EXPR, TREE_TYPE (valt), valt);
code = AND;
}
val = expand_expr (valt, NULL, mode, EXPAND_NORMAL);
/* Note that we explicitly do not want any alias information for this
memory, so that we kill all other live memories. Otherwise we don't