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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug target/97770] [ICELAKE]Missing vectorization for vpopcnt Date: Thu, 12 Nov 2020 07:33:32 +0000 [thread overview] Message-ID: <bug-97770-4-mLEqk40NsW@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-97770-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97770 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rsandifo at gcc dot gnu.org --- Comment #10 from Richard Biener <rguenth at gcc dot gnu.org> --- Hmm, but DEF_INTERNAL_INT_FN (POPCOUNT, ECF_CONST | ECF_NOTHROW, popcount, unary) so there's clearly a mismatch between either the vectorizers interpretation or the optab. But as far as I can see this is not a direct internal fn so vectorizable_internal_function shouldn't apply and I do not see the x86 backend handle POPCOUNT in the vectorizable function target hook. So w/o a compiler capable I can't trace how the vectorizer vectorizes this and thus I have no idea where it goes wrong ...
next prev parent reply other threads:[~2020-11-12 7:33 UTC|newest] Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-11-10 2:12 [Bug target/97770] New: Missing " crazylht at gmail dot com 2020-11-10 2:14 ` [Bug target/97770] " crazylht at gmail dot com 2020-11-10 3:04 ` [Bug target/97770] [ICELAKE]Missing " crazylht at gmail dot com 2020-11-10 3:21 ` crazylht at gmail dot com 2020-11-10 8:12 ` rguenth at gcc dot gnu.org 2020-11-10 8:37 ` crazylht at gmail dot com 2020-11-10 8:55 ` rguenth at gcc dot gnu.org 2020-11-10 9:07 ` tkoenig at gcc dot gnu.org 2020-11-10 10:14 ` ubizjak at gmail dot com 2020-11-12 5:18 ` crazylht at gmail dot com 2020-11-12 7:33 ` rguenth at gcc dot gnu.org [this message] 2020-11-12 8:47 ` crazylht at gmail dot com 2020-12-03 2:03 ` cvs-commit at gcc dot gnu.org 2020-12-03 2:04 ` crazylht at gmail dot com 2020-12-03 11:24 ` [Bug tree-optimization/97770] " rguenth at gcc dot gnu.org 2021-06-04 7:41 ` crazylht at gmail dot com 2021-06-07 11:33 ` rguenth at gcc dot gnu.org 2021-06-10 3:29 ` crazylht at gmail dot com 2021-06-10 6:48 ` [Bug tree-optimization/97770] [ICELAKE]suboptimal vectorization for vpopcntw/b/q rguenther at suse dot de 2021-06-10 18:32 ` hjl.tools at gmail dot com 2021-06-11 7:25 ` rguenth at gcc dot gnu.org 2021-06-22 2:40 ` cvs-commit at gcc dot gnu.org 2021-06-22 2:46 ` crazylht at gmail dot com
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