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[Bug rtl-optimization/78952] Combine does not convert 8-bit sign-extract to a zero-extract for QImode operations
- From: "ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 19 Nov 2018 16:05:01 +0000
- Subject: [Bug rtl-optimization/78952] Combine does not convert 8-bit sign-extract to a zero-extract for QImode operations
- Auto-submitted: auto-generated
- References: <bug-78952-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78952
Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-11-19
Ever confirmed|0 |1
--- Comment #6 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Martin Liška from comment #5)
> Uros: Can the bug be marked as resolved?
The patch implements the workaround for x86 targets, so it depends if we want
the transformation in the middle-end or not.