http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54717
--- Comment #5 from Sergey Ostanevich <sergos.gnu at gmail dot com> 2012-09-26
20:07:26 UTC ---
for 093t.pre I see the following missing in cptrf2 function, first is good,
second is degraded:
***************
*** 8947,8966 ****
goto <bb 35>;
<bb 93>:
- pretmp_325 = (integer(kind=8)) ival2_80;
- pretmp_326 = pretmp_325 + -1;
- pretmp_327 = *xxtrt_25(D)[pretmp_326];
<bb 27>:
# ival2_136 = PHI <ival2_62(93), ival2_144(97)>
# ival2_140 = PHI <ival2_80(93), ival2_146(97)>
- # prephitmp_328 = PHI <pretmp_327(93), prephitmp_290(97)>
_137 = (integer(kind=8)) ival2_136;
_138 = _137 + -1;
_139 = *xxtrt_25(D)[_138];
_141 = (integer(kind=8)) ival2_140;
_142 = _141 + -1;
! _143 = prephitmp_328;
if (_139 < _143)
goto <bb 28>;
else
--- 8838,8853 ----
goto <bb 35>;
<bb 93>:
<bb 27>:
# ival2_136 = PHI <ival2_62(93), ival2_144(97)>
# ival2_140 = PHI <ival2_80(93), ival2_146(97)>
_137 = (integer(kind=8)) ival2_136;
_138 = _137 + -1;
_139 = *xxtrt_25(D)[_138];
_141 = (integer(kind=8)) ival2_140;
_142 = _141 + -1;
! _143 = *xxtrt_25(D)[_142];
if (_139 < _143)
goto <bb 28>;
else
***************
but more surprising to me is that first diff is in 020t.inline_param1
***************
*** 16790,16794 ****
calls:
dtrti2/26 function not considered for inlining
! loop depth: 0 freq:1000 size: 9 time: 18 callee size:82 stack:28
dtrsm/21 function not considered for inlining
loop depth: 0 freq:1000 size:16 time: 25 callee size:324 stack: 4
--- 16790,16794 ----
calls:
dtrti2/26 function not considered for inlining
! loop depth: 0 freq:1000 size: 9 time: 18 callee size:81 stack:28
dtrsm/21 function not considered for inlining
loop depth: 0 freq:1000 size:16 time: 25 callee size:324 stack: 4
***************
