gcc/

	Backport from trunk r241248.
	2016-10-17  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64.c: Delete inclusion of
	cortex-a57-fma-steering.h.
	(aarch64_override_options): Delete call
	to aarch64_register_fma_steering.
	* config/aarch64/aarch64-protos.h (make_pass_fma_steering): Declare.
	* config/aarch64/cortex-a57-fma-steering.h: Delete.
	* config/aarch64/aarch64-passes.def: New file.
	* config/aarch64/cortex-a57-fma-steering.c
	(aarch64_register_fma_steering): Delete definition.
	(make_pass_fma_steering): Remove static qualifier.
	* config/aarch64/t-aarch64 (PASSES_EXTRA): New directive.
	(cortex-a57-fma-steering.o): Remove dependency on
	cortex-a57-fma-steering.h.

Change-Id: I1d33b60fd1fae8c9de3b2a75e51322c04dba9b7a

5 files changed, 8 insertions, 24 deletions

diff --git a/gcc/config/aarch64/cortex-a57-fma-steering.h b/gcc/config/aarch64/aarch64-passes.def
index 65bf5acc132..7fe80391a3f 100644
--- a/gcc/config/aarch64/cortex-a57-fma-steering.h
+++ b/gcc/config/aarch64/aarch64-passes.def
@@ -1,6 +1,5 @@
-/* This file contains declarations for the FMA steering optimization
-   pass for Cortex-A57.
-   Copyright (C) 2015-2016 Free Software Foundation, Inc.
+/* AArch64-specific passes declarations.
+   Copyright (C) 2016 Free Software Foundation, Inc.
    Contributed by ARM Ltd.
 
    This file is part of GCC.
@@ -19,4 +18,4 @@
    along with GCC; see the file COPYING3.  If not see
    <http://www.gnu.org/licenses/>.  */
 
-void aarch64_register_fma_steering (void);
+INSERT_PASS_AFTER (pass_regrename, 1, pass_fma_steering);
diff --git a/gcc/config/aarch64/aarch64-protos.h b/gcc/config/aarch64/aarch64-protos.h
index f27013889b8..23ac210be59 100644
--- a/gcc/config/aarch64/aarch64-protos.h
+++ b/gcc/config/aarch64/aarch64-protos.h
@@ -466,4 +466,6 @@ enum aarch64_parse_opt_result aarch64_parse_extension (const char *,
 std::string aarch64_get_extension_string_for_isa_flags (unsigned long,
 							unsigned long);
 
+rtl_opt_pass *make_pass_fma_steering (gcc::context *ctxt);
+
 #endif /* GCC_AARCH64_PROTOS_H */
diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
index 404dcfc0fbc..f222dba7f57 100644
--- a/gcc/config/aarch64/aarch64.c
+++ b/gcc/config/aarch64/aarch64.c
@@ -62,7 +62,6 @@
 #include "rtl-iter.h"
 #include "tm-constrs.h"
 #include "sched-int.h"
-#include "cortex-a57-fma-steering.h"
 #include "target-globals.h"
 #include "common/common-target.h"
 
@@ -8591,9 +8590,6 @@ aarch64_override_options (void)
      while processing functions with potential target attributes.  */
   target_option_default_node = target_option_current_node
       = build_target_option_node (&global_options);
-
-  aarch64_register_fma_steering ();
-
 }
 
 /* Implement targetm.override_options_after_change.  */
diff --git a/gcc/config/aarch64/cortex-a57-fma-steering.c b/gcc/config/aarch64/cortex-a57-fma-steering.c
index 1bf804b4873..b5f329f75a6 100644
--- a/gcc/config/aarch64/cortex-a57-fma-steering.c
+++ b/gcc/config/aarch64/cortex-a57-fma-steering.c
@@ -35,7 +35,6 @@
 #include "context.h"
 #include "tree-pass.h"
 #include "regrename.h"
-#include "cortex-a57-fma-steering.h"
 #include "aarch64-protos.h"
 
 /* For better performance, the destination of FMADD/FMSUB instructions should
@@ -1068,21 +1067,8 @@ public:
 
 /* Create a new fma steering pass instance.  */
 
-static rtl_opt_pass *
+rtl_opt_pass *
 make_pass_fma_steering (gcc::context *ctxt)
 {
   return new pass_fma_steering (ctxt);
 }
-
-/* Register the FMA steering pass to the pass manager.  */
-
-void
-aarch64_register_fma_steering ()
-{
-  opt_pass *pass_fma_steering = make_pass_fma_steering (g);
-
-  struct register_pass_info fma_steering_info
-    = { pass_fma_steering, "rnreg", 1, PASS_POS_INSERT_AFTER };
-
-  register_pass (&fma_steering_info);
-}
diff --git a/gcc/config/aarch64/t-aarch64 b/gcc/config/aarch64/t-aarch64
index 1ba8a5d1c51..b461eb5bede 100644
--- a/gcc/config/aarch64/t-aarch64
+++ b/gcc/config/aarch64/t-aarch64
@@ -56,12 +56,13 @@ aarch64-c.o: $(srcdir)/config/aarch64/aarch64-c.c $(CONFIG_H) $(SYSTEM_H) \
 	$(COMPILER) -c $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) \
 		$(srcdir)/config/aarch64/aarch64-c.c
 
+PASSES_EXTRA += $(srcdir)/config/aarch64/aarch64-passes.def
+
 cortex-a57-fma-steering.o: $(srcdir)/config/aarch64/cortex-a57-fma-steering.c \
     $(CONFIG_H) $(SYSTEM_H) $(TM_H) $(REGS_H) insn-config.h $(RTL_BASE_H) \
     dominance.h cfg.h cfganal.h $(BASIC_BLOCK_H) $(INSN_ATTR_H) $(RECOG_H) \
     output.h hash-map.h $(DF_H) $(OBSTACK_H) $(TARGET_H) $(RTL_H) \
     $(CONTEXT_H) $(TREE_PASS_H) regrename.h \
-    $(srcdir)/config/aarch64/cortex-a57-fma-steering.h \
     $(srcdir)/config/aarch64/aarch64-protos.h
 	$(COMPILER) -c $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) \
 		$(srcdir)/config/aarch64/cortex-a57-fma-steering.c