avr.h (INIT_TARGET_OPTABS): Remove most of it, was the same as the default library function names.

	* config/avr/avr.h (INIT_TARGET_OPTABS): Remove most of it, was
	the same as the default library function names.
	* config/avr/avr.md: Document special characters after '%'.
	(mulqi3, mulhi3, mulsi3): Call libgcc.S functions ourselves,
	knowing which of the call-used registers are really clobbered.
	(divmodqi4, udivmodqi4, divmodhi4, udivmodhi4, divmodsi4, udivmodsi4):
	New.  Both quotient and remainder from one libgcc.S call.
	* config/avr/libgcc.S: Optimize mul/divmod for the new insns above,
	clobber as few registers as possible.
	* config/avr/t-avr (LIB1ASMFUNCS): Adjust for the above changes.

From-SVN: r39155

gcc/ChangeLog

+2001-01-20  Marek Michalkiewicz  <marekm@linux.org.pl>
+
+	* config/avr/avr.h (INIT_TARGET_OPTABS): Remove most of it, was
+	the same as the default library function names.
+	* config/avr/avr.md: Document special characters after '%'.
+	(mulqi3, mulhi3, mulsi3): Call libgcc.S functions ourselves,
+	knowing which of the call-used registers are really clobbered.
+	(divmodqi4, udivmodqi4, divmodhi4, udivmodhi4, divmodsi4, udivmodsi4):
+	New.  Both quotient and remainder from one libgcc.S call.
+	* config/avr/libgcc.S: Optimize mul/divmod for the new insns above,
+	clobber as few registers as possible.
+	* config/avr/t-avr (LIB1ASMFUNCS): Adjust for the above changes.
+
 2001-01-20  Neil Booth  <neil@daikokuya.demon.co.uk>
 
         * cppmacro.c (funlike_invocation_p): Don't move back up to the

gcc/config/avr/avr.h

@@ -3228,50 +3228,6 @@ valid_machine_decl_attribute (DECL, ATTRIBUTES, IDENTIFIER, ARGS)
 
 #define INIT_TARGET_OPTABS				\
 {							\
-  smul_optab->handlers[(int) QImode].libfunc		\
-    = gen_rtx (SYMBOL_REF, Pmode, "__mulqi3");		\
-							\
-  sdiv_optab->handlers[(int) QImode].libfunc		\
-    = gen_rtx (SYMBOL_REF, Pmode, "__divqi3");		\
-							\
-  smod_optab->handlers[(int) QImode].libfunc		\
-    = gen_rtx (SYMBOL_REF, Pmode, "__modqi3");		\
-							\
-  udiv_optab->handlers[(int) QImode].libfunc		\
-    = gen_rtx (SYMBOL_REF, Pmode, "__udivqi3");		\
-							\
-  umod_optab->handlers[(int) QImode].libfunc		\
-    = gen_rtx (SYMBOL_REF, Pmode, "__umodqi3");		\
-							\
-  smul_optab->handlers[(int) HImode].libfunc		\
-    = gen_rtx (SYMBOL_REF, Pmode, "__mulhi3");		\
-							\
-  sdiv_optab->handlers[(int) HImode].libfunc		\
-    = gen_rtx (SYMBOL_REF, Pmode, "__divhi3");		\
-							\
-  smod_optab->handlers[(int) HImode].libfunc		\
-    = gen_rtx (SYMBOL_REF, Pmode, "__modhi3");		\
-							\
-  udiv_optab->handlers[(int) HImode].libfunc		\
-    = gen_rtx (SYMBOL_REF, Pmode, "__udivhi3");		\
-							\
-  umod_optab->handlers[(int) HImode].libfunc		\
-    = gen_rtx (SYMBOL_REF, Pmode, "__umodhi3");		\
-							\
-  smul_optab->handlers[(int) SImode].libfunc		\
-    = gen_rtx (SYMBOL_REF, Pmode, "__mulsi3");		\
-							\
-  sdiv_optab->handlers[(int) SImode].libfunc		\
-    = gen_rtx (SYMBOL_REF, Pmode, "__divsi3");		\
-							\
-  smod_optab->handlers[(int) SImode].libfunc		\
-    = gen_rtx (SYMBOL_REF, Pmode, "__modsi3");		\
-							\
-  udiv_optab->handlers[(int) SImode].libfunc		\
-    = gen_rtx (SYMBOL_REF, Pmode, "__udivsi3");		\
-							\
-  umod_optab->handlers[(int) SImode].libfunc		\
-    = gen_rtx (SYMBOL_REF, Pmode, "__umodsi3");		\
   avr_init_once ();					\
 }
 

gcc/config/avr/t-avr

@@ -8,18 +8,12 @@ LIB1ASMFUNCS = \
 	_mulqi3 \
 	_mulhi3 \
 	_mulsi3 \
-	_umodqi3 \
-	_udivqi3 \
-	_modqi3 \
-	_divqi3 \
-	_umodhi3 \
-	_udivhi3 \
-	_modhi3 \
-	_divhi3 \
-	_umodsi3 \
-	_udivsi3 \
-	_modsi3 \
-	_divsi3 \
+	_udivmodqi4 \
+	_divmodqi4 \
+	_udivmodhi4 \
+	_divmodhi4 \
+	_udivmodsi4 \
+	_divmodsi4 \
 	_prologue \
 	_epilogue \
 	_exit \