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Speed-up def_builtin_const (ix86_valid_target_attribute).

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* config/i386/i386.c (def_builtin): Set deferred_isa_values for
	masks that can potentially include a builtin.
	(ix86_add_new_builtins): Introduce fast filter for isa values
	that cannot trigger builtin inclusion.

From-SVN: r221577
This commit is contained in:
Martin Liska 2015-03-22 23:50:00 +01:00 committed by Martin Liska
parent 3ab9335949
commit ff2362eb35
2 changed files with 20 additions and 0 deletions
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9
gcc/ChangeLog
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@ -1,3 +1,12 @@
2015-03-22 Martin Liska <mliska@suse.cz>
Jakub Jelinek <jakub@redhat.com>
* config/i386/i386.c (def_builtin): Set deferred_isa_values for
masks that can potentially include a builtin.
(ix86_add_new_builtins): Introduce fast filter for isa values
that cannot trigger builtin inclusion.
2015-03-22 Martin Liska <mliska@suse.cz>
* ipa-icf.c (sem_item::update_hash_by_addr_refs): New function.

11
gcc/config/i386/i386.c
View File

@ -30588,6 +30588,8 @@ struct builtin_isa {
static struct builtin_isa ix86_builtins_isa[(int) IX86_BUILTIN_MAX];
/* Bits that can still enable any inclusion of a builtin. */
static HOST_WIDE_INT deferred_isa_values = 0;
/* Add an ix86 target builtin function with CODE, NAME and TYPE. Save the MASK
of which isa_flags to use in the ix86_builtins_isa array. Stores the
@ -30631,6 +30633,9 @@ def_builtin (HOST_WIDE_INT mask, const char *name,
}
else
{
/* Just a MASK where set_and_not_built_p == true can potentially
include a builtin. */
deferred_isa_values |= mask;
ix86_builtins[(int) code] = NULL_TREE;
ix86_builtins_isa[(int) code].tcode = tcode;
ix86_builtins_isa[(int) code].name = name;
@ -30666,6 +30671,12 @@ def_builtin_const (HOST_WIDE_INT mask, const char *name,
static void
ix86_add_new_builtins (HOST_WIDE_INT isa)
{
if ((isa & deferred_isa_values) == 0)
return;
/* Bits in ISA value can be removed from potential isa values. */
deferred_isa_values &= ~isa;
int i;
tree saved_current_target_pragma = current_target_pragma;
current_target_pragma = NULL_TREE;