[Bug tree-optimization/42846] GCC sometimes ignores information about pointer target alignment

2010-01-24 Thread rguenth at gcc dot gnu dot org
--- Comment #4 from rguenth at gcc dot gnu dot org 2010-01-24 11:52 --- *** This bug has been marked as a duplicate of 41464 *** -- rguenth at gcc dot gnu dot org changed: What|Removed |Added

[Bug tree-optimization/42846] GCC sometimes ignores information about pointer target alignment

2010-01-23 Thread irar at il dot ibm dot com
--- Comment #3 from irar at il dot ibm dot com 2010-01-24 07:39 --- This has already been discussed in PR 41464. Ira -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42846

[Bug tree-optimization/42846] GCC sometimes ignores information about pointer target alignment

2010-01-22 Thread bredelin at ucla dot edu
--- Comment #1 from bredelin at ucla dot edu 2010-01-22 15:14 --- Created an attachment (id=19693) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19693action=view) Several simple examples for alignment in vectorization. The notes in the file about which functions contain aligned

[Bug tree-optimization/42846] GCC sometimes ignores information about pointer target alignment

2010-01-22 Thread rguenth at gcc dot gnu dot org
--- Comment #2 from rguenth at gcc dot gnu dot org 2010-01-22 16:30 --- Yep. I always fail to see why the vectorizer doesn't use the alignment information present in from data-ref analysis: t.i:9: note: === vect_analyze_data_refs === Creating dr for *D.2752_12 ... (res = {p_4, +,