haifa-sched.c: Convert to target hooks.

	* haifa-sched.c: Convert to target hooks.  Macros replaced
	are ISSUE_RATE, ADJUST_COST, ADJUST_PRIORITY, MD_SCHED_INIT,
	MD_SCHED_REORDER, MD_SCHED_REORDER2, MD_SCHED_VARIABLE_ISSUE,
	MD_SCHED_FINISH, and HAVE_cycle_display.
	* target-def.h (TARGET_SCHED_ADJUST_COST,
	TARGET_SCHED_ADJUST_PRIORITY, TARGET_SCHED_ISSUE_RATE,
	TARGET_SCHED_VARIABLE_ISSUE, TARGET_SCHED_INIT,
	TARGET_SCHED_FINISH, TARGET_SCHED_REORDER,
	TARGET_SCHED_REORDER2, TARGET_SCHED_CYCLE_DISPLAY):
	New hook #defines to be overridden.
	(TARGET_SCHED): Bring them all together.
	(TARGET_INITIALIZER): Update.
	* target.h: Don't forward declare struct rtx_def.  Use 'rtx'
	instead of 'struct rtx_def *' throughout.
	(struct sched): New set of hooks for the scheduler.
	* Makefile.in (haifa-sched.o): Depend on target.h.
	* doc/tm.texi: Document the new scheduler hooks, together in
	their own section, instead of scattered around.
	Fix a bunch of underfull/overfull hboxes.

	* a29k.h, alpha.h, arm.h, c4x.h, convex.h, d30v.h, i386.h,
	ia64.h, m32r.h, m88k.h, mips.h, pa.h, rs6000.h, s390.h, sh.h,
	sparc.h: Don't define any of the old scheduler macros.

	* a29k.c, alpha.c, arm.c, c4x.c, convex.c, d30v.c, i386.c,
	ia64.c, m32r.c, m88k.c, mips.c, pa.c, rs6000.c, s390.c, sh.c,
	sparc.c: Create hook functions from code extracted from
	corresponding target header, or make existing hooks static, as
	appropriate.  Set the appropriate entries in targetm.

	* alpha-protos.h, arm-protos.h, c4x-protos.h, d30v-protos.h,
	i386-protos.h, ia64-protos.h, m32r-protos.h, pa-protos.h,
	rs6000-protos.h, s390-protos.h, sparc-protos.h:
	Remove prototypes for functions which are now static.

	* d30v.h, d30v.c, m32r.h, m32r.c: Remove #ifdef HAIFA and
	related gunk; the Haifa scheduler is now the only choice.

From-SVN: r45009

3 files changed, 5 insertions, 9 deletions

diff --git a/gcc/config/c4x/c4x-protos.h b/gcc/config/c4x/c4x-protos.h
index 99ce1cc..1a3ebcf 100644
--- a/gcc/config/c4x/c4x-protos.h
+++ b/gcc/config/c4x/c4x-protos.h
@@ -107,8 +107,6 @@ extern int c4x_label_conflict PARAMS ((rtx, rtx, rtx));
 
 extern int c4x_address_conflict PARAMS ((rtx, rtx, int, int));
 
-extern int c4x_adjust_cost PARAMS ((rtx, rtx, rtx, int));
-
 extern void c4x_process_after_reload PARAMS ((rtx));
 
 extern void c4x_rptb_insert PARAMS ((rtx insn));
diff --git a/gcc/config/c4x/c4x.c b/gcc/config/c4x/c4x.c
index 71d4c5c..2e79177 100644
--- a/gcc/config/c4x/c4x.c
+++ b/gcc/config/c4x/c4x.c
@@ -194,6 +194,7 @@ static int c4x_label_ref_used_p PARAMS ((rtx, rtx));
 static int c4x_valid_type_attribute_p PARAMS ((tree, tree, tree, tree));
 static void c4x_insert_attributes PARAMS ((tree, tree *));
 static void c4x_asm_named_section PARAMS ((const char *, unsigned int));
+static int c4x_adjust_cost PARAMS ((rtx, rtx, rtx, int));
 
 /* Initialize the GCC target structure.  */
 #undef TARGET_VALID_TYPE_ATTRIBUTE
@@ -208,6 +209,9 @@ static void c4x_asm_named_section PARAMS ((const char *, unsigned int));
 #undef TARGET_EXPAND_BUILTIN
 #define TARGET_EXPAND_BUILTIN c4x_expand_builtin
 
+#undef TARGET_SCHED_ADJUST_COST
+#define TARGET_SCHED_ADJUST_COST c4x_adjust_cost
+
 struct gcc_target targetm = TARGET_INITIALIZER;
 
 /* Called to register all of our global variables with the garbage
@@ -4907,8 +4911,7 @@ c4x_check_laj_p (insn)
 #define	SETLDA_USE_COST	2
 #define	READ_USE_COST	2
 
-
-int
+static int
 c4x_adjust_cost (insn, link, dep_insn, cost)
      rtx insn;
      rtx link;
diff --git a/gcc/config/c4x/c4x.h b/gcc/config/c4x/c4x.h
index e2c483d..cdc39db 100644
--- a/gcc/config/c4x/c4x.h
+++ b/gcc/config/c4x/c4x.h
@@ -1953,11 +1953,6 @@ if (REG_P (OP1) && ! REG_P (OP0))			\
 
 #define BRANCH_COST			8
 
-/* Adjust the cost of dependencies.  */
-
-#define ADJUST_COST(INSN,LINK,DEP,COST) \
-  (COST) = c4x_adjust_cost (INSN, LINK, DEP, COST)
-
 #define	WORD_REGISTER_OPERATIONS
 
 /* Dividing the Output into Sections.  */