static bool
ix86_pragma_target_parse (tree args, tree pop_target)
{
tree prev_tree = build_target_option_node (&global_options);
tree cur_tree;
struct cl_target_option *prev_opt;
struct cl_target_option *cur_opt;
HOST_WIDE_INT prev_isa;
HOST_WIDE_INT cur_isa;
HOST_WIDE_INT diff_isa;
enum processor_type prev_arch;
enum processor_type prev_tune;
enum processor_type cur_arch;
enum processor_type cur_tune;
if (! args)
{
cur_tree = (pop_target ? pop_target : target_option_default_node);
cl_target_option_restore (&global_options,
TREE_TARGET_OPTION (cur_tree));
}
else
{
cur_tree = ix86_valid_target_attribute_tree (args, &global_options,
&global_options_set);
if (!cur_tree || cur_tree == error_mark_node)
{
cl_target_option_restore (&global_options,
TREE_TARGET_OPTION (prev_tree));
return false;
}
}
target_option_current_node = cur_tree;
ix86_reset_previous_fndecl ();
/* Figure out the previous/current isa, arch, tune and the differences. */
prev_opt = TREE_TARGET_OPTION (prev_tree);
cur_opt = TREE_TARGET_OPTION (cur_tree);
prev_isa = prev_opt->x_ix86_isa_flags;
cur_isa = cur_opt->x_ix86_isa_flags;
diff_isa = (prev_isa ^ cur_isa);
prev_arch = (enum processor_type) prev_opt->arch;
prev_tune = (enum processor_type) prev_opt->tune;
cur_arch = (enum processor_type) cur_opt->arch;
cur_tune = (enum processor_type) cur_opt->tune;
/* If the same processor is used for both previous and current options, don't
change the macros. */
if (cur_arch == prev_arch)
cur_arch = prev_arch = PROCESSOR_max;
if (cur_tune == prev_tune)
cur_tune = prev_tune = PROCESSOR_max;
/* Undef all of the macros for that are no longer current. */
ix86_target_macros_internal (prev_isa & diff_isa,
prev_arch,
prev_tune,
(enum fpmath_unit) prev_opt->x_ix86_fpmath,
cpp_undef);
/* For the definitions, ensure all newly defined macros are considered
as used for -Wunused-macros. There is no point warning about the
compiler predefined macros. */
cpp_options *cpp_opts = cpp_get_options (parse_in);
unsigned char saved_warn_unused_macros = cpp_opts->warn_unused_macros;
cpp_opts->warn_unused_macros = 0;
/* Define all of the macros for new options that were just turned on. */
ix86_target_macros_internal (cur_isa & diff_isa,
cur_arch,
cur_tune,
(enum fpmath_unit) cur_opt->x_ix86_fpmath,
cpp_define);
cpp_opts->warn_unused_macros = saved_warn_unused_macros;
return true;
}
static bool
ix86_pragma_target_parse (tree args, tree pop_target)
{
tree prev_tree = build_target_option_node ();
tree cur_tree;
struct cl_target_option *prev_opt;
struct cl_target_option *cur_opt;
int prev_isa;
int cur_isa;
int diff_isa;
enum processor_type prev_arch;
enum processor_type prev_tune;
enum processor_type cur_arch;
enum processor_type cur_tune;
if (! args)
{
cur_tree = ((pop_target)
? pop_target
: target_option_default_node);
cl_target_option_restore (TREE_TARGET_OPTION (cur_tree));
}
else
{
cur_tree = ix86_valid_target_attribute_tree (args);
if (!cur_tree)
return false;
}
target_option_current_node = cur_tree;
/* Figure out the previous/current isa, arch, tune and the differences. */
prev_opt = TREE_TARGET_OPTION (prev_tree);
cur_opt = TREE_TARGET_OPTION (cur_tree);
prev_isa = prev_opt->ix86_isa_flags;
cur_isa = cur_opt->ix86_isa_flags;
diff_isa = (prev_isa ^ cur_isa);
prev_arch = (enum processor_type) prev_opt->arch;
prev_tune = (enum processor_type) prev_opt->tune;
cur_arch = (enum processor_type) cur_opt->arch;
cur_tune = (enum processor_type) cur_opt->tune;
/* If the same processor is used for both previous and current options, don't
change the macros. */
if (cur_arch == prev_arch)
cur_arch = prev_arch = PROCESSOR_max;
if (cur_tune == prev_tune)
cur_tune = prev_tune = PROCESSOR_max;
/* Undef all of the macros for that are no longer current. */
ix86_target_macros_internal (prev_isa & diff_isa,
prev_arch,
prev_tune,
(enum fpmath_unit) prev_opt->fpmath,
cpp_undef);
/* Define all of the macros for new options that were just turned on. */
ix86_target_macros_internal (cur_isa & diff_isa,
cur_arch,
cur_tune,
(enum fpmath_unit) cur_opt->fpmath,
cpp_define);
return true;
}