--- Comment #6 from uramakrishna at gmail dot com 2010-01-26 10:08 ---
This PR is perhaps related to a
href=http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42644;PR42644/a (equake
problem) and a
href=http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42130;PR42130/a (DealII
problem), as it has the
--- Comment #4 from uramakrishna at gmail dot com 2010-01-25 16:30 ---
Created an attachment (id=19704)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19704action=view)
A further reduced case to show the ICE
Unable to find non-zero value for 'known_niter'.
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--- Comment #5 from amonakov at gcc dot gnu dot org 2010-01-25 17:06
---
We fail to find number of iterations after rewriting reductions out of SSA.
Before graphite pass, IR looks like (for the previous testcase, pr42771.c):
bb 9:
# j_26 = PHI j_20(10)
bb 10:
# j_33 = PHI
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rguenth at gcc dot gnu dot org changed:
What|Removed |Added
Priority|P3 |P1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42771
--- Comment #1 from zsojka at seznam dot cz 2010-01-16 22:03 ---
Created an attachment (id=19628)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19628action=view)
original, unreduced testcase (from ffmpeg sources)
Command line:
gcc -O3 -fgraphite-identity -c aes.i
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--- Comment #2 from zsojka at seznam dot cz 2010-01-16 22:05 ---
Created an attachment (id=19629)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19629action=view)
reduced testcase
The only difference to the pr42521 testcase is added declaration of and call to
bar()
Command line:
--
rguenth at gcc dot gnu dot org changed:
What|Removed |Added
Target Milestone|--- |4.5.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42771
--- Comment #3 from hjl dot tools at gmail dot com 2010-01-16 22:36 ---
It is caused by the new implementation of Graphite:
http://gcc.gnu.org/ml/gcc-cvs/2009-07/msg01187.html
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hjl dot tools at gmail dot com changed:
What|Removed |Added
