[Bug tree-optimization/52054] Value-numbering does not enter translated expressions into the hash table
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52054 --- Comment #5 from Richard Guenther rguenth at gcc dot gnu.org 2012-05-12 11:57:41 UTC --- (In reply to comment #4) (In reply to comment #3) PR53125 has a testcase where we spend time in redundant store removal in eliminate() which does vn_reference_lookup with VN_WALK (which it should not need). The patch of comment #2 has no influence on the compile time for bug 53125. Is that expected? Yes. You need to change the vn_reference_lookup with VN_WALK in eliminate() to VN_NOWALK, too (based on the fact that we'd have done that lookup at value-numbering time already and entered the result, so walking would no longer be necessary).
[Bug tree-optimization/52054] Value-numbering does not enter translated expressions into the hash table
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52054 --- Comment #3 from Richard Guenther rguenth at gcc dot gnu.org 2012-05-11 09:34:40 UTC --- PR53125 has a testcase where we spend time in redundant store removal in eliminate() which does vn_reference_lookup with VN_WALK (which it should not need).
[Bug tree-optimization/52054] Value-numbering does not enter translated expressions into the hash table
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52054 Steven Bosscher steven at gcc dot gnu.org changed: What|Removed |Added CC||steven at gcc dot gnu.org --- Comment #4 from Steven Bosscher steven at gcc dot gnu.org 2012-05-11 23:08:15 UTC --- (In reply to comment #3) PR53125 has a testcase where we spend time in redundant store removal in eliminate() which does vn_reference_lookup with VN_WALK (which it should not need). The patch of comment #2 has no influence on the compile time for bug 53125. Is that expected?
[Bug tree-optimization/52054] Value-numbering does not enter translated expressions into the hash table
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52054 --- Comment #2 from Richard Guenther rguenth at gcc dot gnu.org 2012-01-31 13:26:56 UTC --- Created attachment 26533 -- http://gcc.gnu.org/bugzilla/attachment.cgi?id=26533 patch Prototype patch. Passes bootstrap but testing shows some regressions.
[Bug tree-optimization/52054] Value-numbering does not enter translated expressions into the hash table
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52054 Richard Guenther rguenth at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Last reconfirmed||2012-01-30 AssignedTo|unassigned at gcc dot |rguenth at gcc dot gnu.org |gnu.org | Ever Confirmed|0 |1 --- Comment #1 from Richard Guenther rguenth at gcc dot gnu.org 2012-01-30 14:36:22 UTC --- Mine.
