target.h (init_libfuncs): New hook.

	* target.h (init_libfuncs): New hook.
	* target-def.h: Default TARGET_INIT_BUILTINS and
	TARGET_INIT_LIBFUNCS to hook_void_void.  Add
	TARGET_INIT_LIBFUNCS to TARGET_INITIALIZER.
	* builtins.c (default_init_builtins): Delete.
	* expr.h (default_init_builtins): Delete prototype.
	* doc/tm.texi: Document TARGET_INIT_LIBFUNCS and US_SOFTWARE_GOFAST.
	Tweak documentation of TARGET_FLOAT_LIB_COMPARE_RETURNS_BOOL.
	Remove documentation of INIT_TARGET_OPTABS, MULSI3_LIBCALL,
	DIVSI3_LIBCALL, UDIVSI3_LIBCALL, MODSI3_LIBCALL, UMODSI3_LIBCALL,
	MULDI3_LIBCALL, DIVDI3_LIBCALL, UDIVDI3_LIBCALL, MODDI3_LIBCALL,
	and UMODDI3_LIBCALL,

	* Makefile.in (optabs.o): Depends on target.h.
	* defaults.h: Provide default for FLOAT_LIB_COMPARE_RETURNS_BOOL.
	* optabs.c: Include target.h.
	(prepare_float_lib_cmp): No need for #ifdef around use of
	FLOAT_LIB_COMPARE_RETURNS_BOOL.
	(set_optab_libfunc): New function.
	(init_optabs): Delete use of all *_LIBCALL defines.
	Call targetm.init_libfuncs not INIT_TARGET_OPTABS.
	* optabs.h: Prototype set_optab_libfunc.

	* config.gcc: Remove all references to pa/long_double.h,
	ia64/hpux_longdouble.h, and gofast.h.
	(mips-*-*): When --enable-gofast, just add US_SOFTWARE_GOFAST
	to tm_defines; don't set INIT_SUBTARGET_OPTABS or change tm_file.

	* config/alpha/alpha.c, config/c4x/c4x.c, config/cris/cris.c
	* config/frv/frv.c, config/h8300/h8300.c, config/i860/i860.c
	* config/ia64/ia64.c, config/ip2k/ip2k.c, config/m68hc11/m68hc11.c
	* config/mips/mips.c, config/pa/pa.c, config/rs6000/rs6000.c
	* config/sparc/sparc.c, config/vax/vax.c:
	Provide a definition for TARGET_INIT_LIBFUNCS.  Where
	necessary, include optabs.h, libfuncs.h, and/or config/gofast.h.

	* config/alpha/unicosmk.h, config/alpha/vms.h, config/c4x/c4x.h
	* config/avr/avr.h, config/cris/cris.h, config/frv/frv.h
	* config/h8300/h8300.h, config/i860/i860.h, config/ip2k/ip2k.h
	* config/iq2000/iq2000.h, config/m68hc11/m68hc11.h, config/mips/mips.h
	* config/rs6000/aix.h, config/rs6000/sysv4.h, config/sparc/elf.h
	* config/sparc/lite.h, config/sparc/netbsd-elf.h, config/sparc/sol2.h
	* config/sparc/sparc.h, config/v850/v850.h, config/vax/vax.h
	* config/vax/elf.h: Don't define or use INIT_TARGET_OPTABS,
	INIT_SUBTARGET_OPTABS, or any *_LIBCALL macros.

	* config/ia64/hpux.h: Redefine INTEL_EXTENDED_IEEE_FORMAT to 0.
	Set TARGET_INIT_LIBFUNCS and FLOAT_LIB_COMPARE_RETURNS_BOOL here.
	* config/pa/pa-hpux.h: Define LONG_DOUBLE_TYPE_SIZE,
	HPUX_LONG_DOUBLE_LIBRARY, and FLOAT_LIB_COMPARE_RETURNS_BOOL here.
	* config/ia64/hpux_longdouble.h, config/pa/long_double.h: Delete.

	* config/rs6000/xcoff.h: Don't define RS6000_ITRUNC nor RS6000_UITRUNC.
	* config/sparc/sparc.h: Default SUN_CONVERSION_LIBFUNCS and
	SUN_INTEGER_MULTIPLY_64 to 0.
	* config/sparc/sol2.h: Redefine SUN_CONVERSION_LIBFUNCS and
	SUN_INTEGER_MULTIPLY_64 to 1.
	* config/sparc/elf.h: Redefine SUN_CONVERSION_LIBFUNCS and
	SUN_INTEGER_MULTIPLY_64 to 0.
	* config/sparc/lite.h, config/sparc/liteelf.h, config/sparc/sp86x-elf.h:
	Define US_SOFTWARE_GOFAST.
	* config/vax/vax.h: Default TARGET_ELF to 0.
	* config/vax/elf.h: Redefine TARGET_ELF to 1.

	* config/gofast.h: Don't define any macros here.  Provide one
	static function, gofast_maybe_init_libfuncs, which does what
	INIT_GOFAST_LIBFUNCS used to do but only if US_SOFTWARE_GOFAST
	is already defined.  Do not clear negation libfuncs.  Do
	not mess with HFmode, XFmode, or TFmode libfuncs.

	* config/avr/avr.c (avr_init_once): #if 0 out; mark FIXME.

From-SVN: r72009

3 files changed, 22 insertions, 14 deletions

diff --git a/gcc/config/vax/elf.h b/gcc/config/vax/elf.h
index 122e3cf..533ce92 100644
--- a/gcc/config/vax/elf.h
+++ b/gcc/config/vax/elf.h
@@ -19,6 +19,9 @@ along with GCC; see the file COPYING.  If not, write to
 the Free Software Foundation, 59 Temple Place - Suite 330,
 Boston, MA 02111-1307, USA.  */
 
+#undef TARGET_ELF
+#define TARGET_ELF 1
+
 #undef REGISTER_PREFIX
 #undef REGISTER_NAMES
 #define REGISTER_PREFIX "%"
@@ -70,12 +73,6 @@ Boston, MA 02111-1307, USA.  */
 #undef  ASM_OUTPUT_BEFORE_CASE_LABEL
 #define ASM_OUTPUT_BEFORE_CASE_LABEL(FILE, PREFIX, NUM, TABLE)
 
-/* Get the udiv/urem calls out of the user's namespace.  */
-#undef  UDIVSI3_LIBCALL
-#define UDIVSI3_LIBCALL "*__udiv"
-#undef  UMODSI3_LIBCALL
-#define UMODSI3_LIBCALL "*__urem"
-
 #undef OVERRIDE_OPTIONS
 #define OVERRIDE_OPTIONS			\
   do						\
diff --git a/gcc/config/vax/vax.c b/gcc/config/vax/vax.c
index ad40e982..4f8ffb0 100644
--- a/gcc/config/vax/vax.c
+++ b/gcc/config/vax/vax.c
@@ -35,6 +35,7 @@ Boston, MA 02111-1307, USA.  */
 #include "insn-attr.h"
 #include "recog.h"
 #include "expr.h"
+#include "optabs.h"
 #include "flags.h"
 #include "debug.h"
 #include "tm_p.h"
@@ -43,6 +44,7 @@ Boston, MA 02111-1307, USA.  */
 
 static void vax_output_function_prologue (FILE *, HOST_WIDE_INT);
 static void vax_file_start (void);
+static void vax_init_libfuncs (void);
 static void vax_output_mi_thunk (FILE *, tree, HOST_WIDE_INT,
 				 HOST_WIDE_INT, tree);
 static int vax_address_cost_1 (rtx);
@@ -62,6 +64,9 @@ static bool vax_rtx_costs (rtx, int, int, int *);
 #undef TARGET_ASM_FILE_START_APP_OFF
 #define TARGET_ASM_FILE_START_APP_OFF true
 
+#undef TARGET_INIT_LIBFUNCS
+#define TARGET_INIT_LIBFUNCS vax_init_libfuncs
+
 #undef TARGET_ASM_OUTPUT_MI_THUNK
 #define TARGET_ASM_OUTPUT_MI_THUNK vax_output_mi_thunk
 #undef TARGET_ASM_CAN_OUTPUT_MI_THUNK
@@ -141,6 +146,17 @@ vax_file_start (void)
     fprintf (asm_out_file, "___vax_%c_doubles:\n", ASM_DOUBLE_CHAR);
 }
 
+/* We can use the BSD C library routines for the libgcc calls that are
+   still generated, since that's what they boil down to anyways.  When
+   ELF, avoid the user's namespace.  */
+
+static void
+vax_init_libfuncs (void)
+{
+  set_optab_libfunc (udiv_optab, SImode, TARGET_ELF ? "*__udiv" : "*udiv");
+  set_optab_libfunc (umod_optab, SImode, TARGET_ELF ? "*__umod" : "*umod");
+}
+
 /* This is like nonimmediate_operand with a restriction on the type of MEM.  */
 
 void
diff --git a/gcc/config/vax/vax.h b/gcc/config/vax/vax.h
index bb1450d..0bbcc27 100644
--- a/gcc/config/vax/vax.h
+++ b/gcc/config/vax/vax.h
@@ -78,6 +78,9 @@ extern int target_flags;
 /* Nonzero if compiling with `G'-format floating point */
 #define TARGET_G_FLOAT (target_flags & MASK_G_FLOAT)
 
+/* Nonzero if ELF.  Redefined by vax/elf.h.  */
+#define TARGET_ELF 0
+
 /* Macro to define tables used to set the flags.
    This is a list in braces of pairs in braces,
    each pair being { "NAME", VALUE }
@@ -855,14 +858,6 @@ enum reg_class { NO_REGS, ALL_REGS, LIM_REG_CLASSES };
    used to replace branches can be expensive.  */
 
 #define BRANCH_COST 0
-
-/*
- * We can use the BSD C library routines for the libgcc calls that are
- * still generated, since that's what they boil down to anyways.
- */
-
-#define UDIVSI3_LIBCALL "*udiv"
-#define UMODSI3_LIBCALL "*urem"
 
 /* Tell final.c how to eliminate redundant test instructions.  */