diff options
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/builtins.c | 9 |
2 files changed, 13 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 924cf26..621d263 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -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. diff --git a/gcc/builtins.c b/gcc/builtins.c index 33102e0..e907752 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -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 |