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[Bug tree-optimization/85212] Parallelizable loop isn't unrolled [regression bug?]
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 05 Apr 2018 12:02:27 +0000
- Subject: [Bug tree-optimization/85212] Parallelizable loop isn't unrolled [regression bug?]
- Auto-submitted: auto-generated
- References: <bug-85212-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85212
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2018-04-05
CC| |rguenth at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
While GCC 5.5 parallelizes the loop newer GCCs don't. Newer GCCs only
parallelize without -floop-parallelize-all.
But in no case we unroll the loop, so not sure what you expect? You also don't
specify -funroll-loops, specifying that we do unroll.
So can you please clarify what the bug is?