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[Bug target/86745] [9 regression] gcc.target/i386/avx-cvt-2.c etc. FAIL on 64-bit x86
- From: "ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 16 Aug 2018 09:13:43 +0000
- Subject: [Bug target/86745] [9 regression] gcc.target/i386/avx-cvt-2.c etc. FAIL on 64-bit x86
- Auto-submitted: auto-generated
- References: <bug-86745-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86745
Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2018-08-16
Assignee|unassigned at gcc dot gnu.org |ubizjak at gmail dot com
Ever confirmed|0 |1
--- Comment #3 from Uroš Bizjak <ubizjak at gmail dot com> ---
Created attachment 44550
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44550&action=edit
Proposed patch
The combine is now able to combine memory operand with the instruction,
creating:
vcvtps2pd f(%rip), %ymm0
This doesn't match the pattern.
The matching pattern is too tight, attached patch "fixes" the PR.