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re PR target/49687 ([avr] Missed optimization for widening MUL) 

PR target/49687
	* config/avr/avr.md (mulsi3, *mulsi3, mulu<mode>si3,
	muls<mode>si3, mulohisi3, mulhisi3, umulhisi3, usmulhisi3,
	*<any_extend:extend_prefix><any_extend2:extend_prefix>mul<QIHI:mode><QIHI2:mode>si3):
	Add X to register footprint: Clobber r26/r27.

From-SVN: r176923
This commit is contained in:
Georg-Johann Lay 2011-07-29 11:27:39 +00:00 committed by Georg-Johann Lay
parent 96d0349617
commit db7ccee202
2 changed files with 17 additions and 0 deletions
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8
gcc/ChangeLog
View File

@ -1,3 +1,11 @@
2011-07-29 Georg-Johann Lay <avr@gjlay.de>
PR target/49687
* config/avr/avr.md (mulsi3, *mulsi3, mulu<mode>si3,
muls<mode>si3, mulohisi3, mulhisi3, umulhisi3, usmulhisi3,
*<any_extend:extend_prefix><any_extend2:extend_prefix>mul<QIHI:mode><QIHI2:mode>si3):
Add X to register footprint: Clobber r26/r27.
2011-07-29 Richard Guenther <rguenther@suse.de>
* builtins.c (fold_builtin_signbit): Build the comparison

9
gcc/config/avr/avr.md
View File

@ -1373,6 +1373,7 @@
[(parallel [(set (match_operand:SI 0 "register_operand" "")
(mult:SI (match_operand:SI 1 "register_operand" "")
(match_operand:SI 2 "nonmemory_operand" "")))
(clobber (reg:HI 26))
(clobber (reg:DI 18))])]
"AVR_HAVE_MUL"
{
@ -1395,6 +1396,7 @@
[(set (match_operand:SI 0 "pseudo_register_operand" "=r")
(mult:SI (match_operand:SI 1 "pseudo_register_operand" "r")
(match_operand:SI 2 "pseudo_register_or_const_int_operand" "rn")))
(clobber (reg:HI 26))
(clobber (reg:DI 18))]
"AVR_HAVE_MUL && !reload_completed"
{ gcc_unreachable(); }
@ -1431,6 +1433,7 @@
[(set (match_operand:SI 0 "pseudo_register_operand" "=r")
(mult:SI (zero_extend:SI (match_operand:QIHI 1 "pseudo_register_operand" "r"))
(match_operand:SI 2 "pseudo_register_or_const_int_operand" "rn")))
(clobber (reg:HI 26))
(clobber (reg:DI 18))]
"AVR_HAVE_MUL && !reload_completed"
{ gcc_unreachable(); }
@ -1466,6 +1469,7 @@
[(set (match_operand:SI 0 "pseudo_register_operand" "=r")
(mult:SI (sign_extend:SI (match_operand:QIHI 1 "pseudo_register_operand" "r"))
(match_operand:SI 2 "pseudo_register_or_const_int_operand" "rn")))
(clobber (reg:HI 26))
(clobber (reg:DI 18))]
"AVR_HAVE_MUL && !reload_completed"
{ gcc_unreachable(); }
@ -1509,6 +1513,7 @@
(mult:SI (not:SI (zero_extend:SI
(not:HI (match_operand:HI 1 "pseudo_register_operand" "r"))))
(match_operand:SI 2 "pseudo_register_or_const_int_operand" "rn")))
(clobber (reg:HI 26))
(clobber (reg:DI 18))]
"AVR_HAVE_MUL && !reload_completed"
{ gcc_unreachable(); }
@ -1528,6 +1533,7 @@
[(parallel [(set (match_operand:SI 0 "register_operand" "")
(mult:SI (sign_extend:SI (match_operand:HI 1 "register_operand" ""))
(sign_extend:SI (match_operand:HI 2 "register_operand" ""))))
(clobber (reg:HI 26))
(clobber (reg:DI 18))])]
"AVR_HAVE_MUL"
"")
@ -1536,6 +1542,7 @@
[(parallel [(set (match_operand:SI 0 "register_operand" "")
(mult:SI (zero_extend:SI (match_operand:HI 1 "register_operand" ""))
(zero_extend:SI (match_operand:HI 2 "register_operand" ""))))
(clobber (reg:HI 26))
(clobber (reg:DI 18))])]
"AVR_HAVE_MUL"
"")
@ -1544,6 +1551,7 @@
[(parallel [(set (match_operand:SI 0 "register_operand" "")
(mult:SI (zero_extend:SI (match_operand:HI 1 "register_operand" ""))
(sign_extend:SI (match_operand:HI 2 "register_operand" ""))))
(clobber (reg:HI 26))
(clobber (reg:DI 18))])]
"AVR_HAVE_MUL"
"")
@ -1557,6 +1565,7 @@
[(set (match_operand:SI 0 "pseudo_register_operand" "=r")
(mult:SI (any_extend:SI (match_operand:QIHI 1 "pseudo_register_operand" "r"))
(any_extend2:SI (match_operand:QIHI2 2 "pseudo_register_operand" "r"))))
(clobber (reg:HI 26))
(clobber (reg:DI 18))]
"AVR_HAVE_MUL && !reload_completed"
{ gcc_unreachable(); }