[Bug tree-optimization/62173] [5 Regression] 64bit Arch can't ivopt while 32bit Arch can

2015-03-12 Thread jiwang at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62173

--- Comment #36 from Jiong Wang jiwang at gcc dot gnu.org ---
and for rtl level improvement, need to enable DF_DU_CHAIN build on top of
existing DF_UD_CHAIN (may cause extra compile time resource consumption).

one draft patch is here, no feedback yet.

  https://gcc.gnu.org/ml/gcc-patches/2015-02/msg00736.html

as both tree and rtl fix contain generic code modifications, I think it's
better to defer it to next stage-1 given the issue itself is enhancement not
bug.


[Bug tree-optimization/62173] [5 Regression] 64bit Arch can't ivopt while 32bit Arch can

2015-03-11 Thread jiwang at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62173

--- Comment #35 from Jiong Wang jiwang at gcc dot gnu.org ---
(In reply to Jakub Jelinek from comment #34)
 Any progress on this?  This is a P1 PR, but no comments have been added for
 more than a month...

from what I known:

  Bin was working on some tree level fix while I was working on RTL level fix.
And I was told this has been deffered to next stage 1.


[Bug tree-optimization/62173] [5 Regression] 64bit Arch can't ivopt while 32bit Arch can

2015-03-11 Thread jakub at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62173

--- Comment #34 from Jakub Jelinek jakub at gcc dot gnu.org ---
Any progress on this?  This is a P1 PR, but no comments have been added for
more than a month...