diff options
| author | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-04-18 16:02:14 +0000 |
|---|---|---|
| committer | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-04-18 16:02:14 +0000 |
| commit | 73b33d47426f3451639fb5e12160428c62aed776 (patch) | |
| tree | 3d3344b42fb2435ba6ab5a5878ce553c432ba85d /gcc | |
| parent | 5210db796309cfab53080cd417dc5d876e8d73a9 (diff) | |
| download | gcc-73b33d47426f3451639fb5e12160428c62aed776.tar.gz | |
* builtins.c (expand_builtin_sync_operation): Fold nand to and
for constants.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@98324 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
| -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 924cf2624e5..621d26395a2 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 33102e08e55..e9077527c62 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 |