gen-pass-instances.awk: Rewritten.

	* gen-pass-instances.awk: Rewritten.
	* Makefile.in (pass-instances.def): Depend on $(PASSES_EXTRA), pass
	$(PASSES_EXTRA) after passes.def to the script.
	* config/i386/t-i386 (PASSES_EXTRA): Add i386-passes.def.
	* config/i386/i386-passes.def: New file.
	* config/i386/i386-protos.h (make_pass_insert_vzeroupper,
	make_pass_stv): Declare.
	* config/i386/i386.c (pass_stv::pass_stv): Initialize timode_p to
	false.
	(pass_stv::gate): Depending on timode_p member require TARGET_64BIT
	or !TARGET_64BIT.
	(pass_stv::clone, pass_stv::set_pass_param): New methods.
	(pass_stv::timode_p): New non-static data member.
	(ix86_option_override): Don't register passes here.

From-SVN: r240888

diff --git a/gcc/config/i386/i386-passes.def b/gcc/config/i386/i386-passes.def
new file mode 100644 (file)
index 0000000..3d2cb5d
--- /dev/null
+++ b/gcc/config/i386/i386-passes.def
@@ -0,0 +1,31 @@
+/* Description of target passes for IA-32 
+   Copyright (C) 2016 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+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/>.  */
+
+/*
+   Macros that can be used in this file:
+   INSERT_PASS_AFTER (PASS, INSTANCE, TGT_PASS)
+   INSERT_PASS_BEFORE (PASS, INSTANCE, TGT_PASS)
+   REPLACE_PASS (PASS, INSTANCE, TGT_PASS)
+ */
+
+  INSERT_PASS_AFTER (pass_reload, 1, pass_insert_vzeroupper);
+  INSERT_PASS_AFTER (pass_combine, 1, pass_stv, false /* timode_p */);
+  /* Run the 64-bit STV pass before the CSE pass so that CONST0_RTX and
+     CONSTM1_RTX generated by the STV pass can be CSEed.  */
+  INSERT_PASS_BEFORE (pass_cse2, 1, pass_stv, true /* timode_p */);