https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78417
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
--- gcc/config/rs6000/rs6000.c.jj 2016-11-18 20:04:31.000000000 +0100
+++ gcc/config/rs6000/rs6000.c 2016-11-19 10:12:51.018816976 +0100
@@ -38141,6 +38141,14 @@ rs6000_valid_attribute_p (tree fndecl,
tree args,
int flags)
{
+ /* attribute((target("default"))) does nothing, beyond
+ affecting multi-versioning. */
+ if (TREE_VALUE (args)
+ && TREE_CODE (TREE_VALUE (args)) == STRING_CST
+ && TREE_CHAIN (args) == NULL_TREE
+ && strcmp (TREE_STRING_POINTER (TREE_VALUE (args)), "default") == 0)
+ return true;
+
struct cl_target_option cur_target;
bool ret;
tree old_optimize = build_optimization_node (&global_options);
isn't sufficient for this, one needs to implement
TARGET_GENERATE_VERSION_DISPATCHER_BODY
TARGET_GET_FUNCTION_VERSIONS_DISPATCHER
as well.
OT, Thomas, in libgfortran using cpu=power7,cpu=power8 shouldn't be done on if
power8 is already enabled by default (such as on powerpc64le). Guess you want
cpu=power9,default in that case (of course only once the multi-versioning
support will be implemented for power, if it will.
