diff options
Diffstat (limited to 'gcc/doc/tm.texi')
| -rw-r--r-- | gcc/doc/tm.texi | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 7240d19e837..b15cb53dec6 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -3878,6 +3878,18 @@ arguments to @code{va_arg}; the latter two are as in @code{gimplify.c:gimplify_expr}. @end deftypefn +@deftypefn {Target Hook} bool TARGET_SCALAR_MODE_SUPPORTED_P (enum machine_mode @var{mode}) +Define this to return nonzero if the port is prepared to handle +insns involving scalar mode @var{mode}. For a scalar mode to be +considered supported, all the basic arithmetic and comparisons +must work. + +The default version of this hook returns true for any mode +required to handle the basic C types (as defined by the port). +Included here are the double-word arithmetic supported by the +code in @file{optabs.c}. +@end deftypefn + @deftypefn {Target Hook} bool TARGET_VECTOR_MODE_SUPPORTED_P (enum machine_mode @var{mode}) Define this to return nonzero if the port is prepared to handle insns involving vector mode @var{mode}. At the very least, it |
