Adjust decimal point of signed accum mode to GCC default.

libgcc/
	Adjust decimal point of signed accum mode to GCC default.

	PR target/54222
	* config/avr/t-avr (LIB1ASMFUNCS): Add _fractsfsq _fractsfusq,
	_divqq_helper.
	* config/avr/lib1funcs-fixed.S (__fractqqsf, __fracthqsf)
	(__fractsasf, __fractsfha, __fractusqsf, __fractsfsa)
	(__mulha3, __mulsa3)
	(__divqq3, __divha3, __divsa3): Adjust to new position of
	decimal point of signed accum types. 
	
	(__mulusa3_round): New function.
	(__mulusa3): Use it.
	(__divqq_helper): New function.
	(__udivuqq3): Use it.

gcc/
	Adjust decimal point of signed accum mode to GCC default.

	PR target/54222
	* config/avr/avr-modes.def (HA, SA, DA): Remove mode adjustments.
	(TA): Move decimal point one bit to the right.
	* config/avr/avr.c (avr_out_fract): Rewrite.

From-SVN: r193721

gcc/ChangeLog

+2012-11-22  Georg-Johann Lay  <avr@gjlay.de>
+
+	Adjust decimal point of signed accum mode to GCC default.
+
+	PR target/54222
+	* config/avr/avr-modes.def (HA, SA, DA): Remove mode adjustments.
+	(TA): Move decimal point one bit to the right.
+	* config/avr/avr.c (avr_out_fract): Rewrite.
+
 2012-11-21  Matthias Klose  <doko@ubuntu.com>
 
 	* config/alpha/t-linux: New file; define MULTIARCH_DIRNAME.

gcc/config/avr/avr-modes.def

 FRACTIONAL_INT_MODE (PSI, 24, 3);
 
-/* On 8 bit machines it requires fewer instructions for fixed point
-   routines if the decimal place is on a byte boundary which is not
-   the default for signed accum types.  */
-
-ADJUST_IBIT (HA, 7);
-ADJUST_FBIT (HA, 8);
-
-ADJUST_IBIT (SA, 15);
-ADJUST_FBIT (SA, 16);
-
-ADJUST_IBIT (DA, 31);
-ADJUST_FBIT (DA, 32);
-
 /* Make TA and UTA 64 bits wide.
    128 bit wide modes would be insane on a 8-bit machine.
    This needs special treatment in avr.c and avr-lib.h.  */
 
 ADJUST_BYTESIZE  (TA, 8);
 ADJUST_ALIGNMENT (TA, 1);
-ADJUST_IBIT (TA, 15);
-ADJUST_FBIT (TA, 48);
+ADJUST_IBIT (TA, 16);
+ADJUST_FBIT (TA, 47);
 
 ADJUST_BYTESIZE  (UTA, 8);
 ADJUST_ALIGNMENT (UTA, 1);

libgcc/ChangeLog

+2012-11-22  Georg-Johann Lay  <avr@gjlay.de>
+
+	Adjust decimal point of signed accum mode to GCC default.
+
+	PR target/54222
+	* config/avr/t-avr (LIB1ASMFUNCS): Add _fractsfsq _fractsfusq,
+	_divqq_helper.
+	* config/avr/lib1funcs-fixed.S (__fractqqsf, __fracthqsf)
+	(__fractsasf, __fractsfha, __fractusqsf, __fractsfsa)
+	(__mulha3, __mulsa3)
+	(__divqq3, __divha3, __divsa3): Adjust to new position of
+	decimal point of signed accum types. 
+	
+	(__mulusa3_round): New function.
+	(__mulusa3): Use it.
+	(__divqq_helper): New function.
+	(__udivuqq3): Use it.
+
 2012-11-20  Jakub Jelinek  <jakub@redhat.com>
 
 	PR bootstrap/55370

libgcc/config/avr/t-avr

@@ -64,12 +64,12 @@ LIB1ASMFUNCS += \
 	\
 	_fractsfqq _fractsfuqq \
 	_fractsfhq _fractsfuhq _fractsfha _fractsfuha \
-	_fractsfsa _fractsfusa \
+	_fractsfsq _fractsfusq _fractsfsa _fractsfusa \
 	_mulqq3 \
 	_mulhq3 _muluhq3 \
 	_mulha3 _muluha3 _muluha3_round \
 	_mulsa3 _mulusa3 \
-	_divqq3 _udivuqq3 \
+	_divqq3 _udivuqq3 _divqq_helper \
 	_divhq3 _udivuhq3 \
 	_divha3 _udivuha3 \
 	_divsa3 _udivusa3 \