diff options
Diffstat (limited to 'gcc/c-family/c-common.c')
| -rw-r--r-- | gcc/c-family/c-common.c | 40 |
1 files changed, 34 insertions, 6 deletions
diff --git a/gcc/c-family/c-common.c b/gcc/c-family/c-common.c index 324c28a..491dd9e 100644 --- a/gcc/c-family/c-common.c +++ b/gcc/c-family/c-common.c @@ -19,10 +19,6 @@ You should have received a copy of the GNU General Public License along with GCC; see the file COPYING3. If not see <http://www.gnu.org/licenses/>. */ -/* FIXME: Still need to include rtl.h here (via expr.h) in a front-end file. - Pretend this is a back-end file. */ -#undef IN_GCC_FRONTEND - #include "config.h" #include "system.h" #include "coretypes.h" @@ -50,8 +46,6 @@ along with GCC; see the file COPYING3. If not see #include "target-def.h" #include "libfuncs.h" -#include "expr.h" /* For vector_mode_valid_p */ - cpp_reader *parse_in; /* Declared in c-pragma.h. */ /* The following symbols are subsumed in the c_global_trees array, and @@ -6249,6 +6243,40 @@ handle_destructor_attribute (tree *node, tree name, tree args, return NULL_TREE; } +/* Nonzero if the mode is a valid vector mode for this architecture. + This returns nonzero even if there is no hardware support for the + vector mode, but we can emulate with narrower modes. */ + +static int +vector_mode_valid_p (enum machine_mode mode) +{ + enum mode_class mclass = GET_MODE_CLASS (mode); + enum machine_mode innermode; + + /* Doh! What's going on? */ + if (mclass != MODE_VECTOR_INT + && mclass != MODE_VECTOR_FLOAT + && mclass != MODE_VECTOR_FRACT + && mclass != MODE_VECTOR_UFRACT + && mclass != MODE_VECTOR_ACCUM + && mclass != MODE_VECTOR_UACCUM) + return 0; + + /* Hardware support. Woo hoo! */ + if (targetm.vector_mode_supported_p (mode)) + return 1; + + innermode = GET_MODE_INNER (mode); + + /* We should probably return 1 if requesting V4DI and we have no DI, + but we have V2DI, but this is probably very unlikely. */ + + /* If we have support for the inner mode, we can safely emulate it. + We may not have V2DI, but me can emulate with a pair of DIs. */ + return targetm.scalar_mode_supported_p (innermode); +} + + /* Handle a "mode" attribute; arguments as in struct attribute_spec.handler. */ |