From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 924CA3857C42; Fri, 11 Mar 2022 15:15:37 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 924CA3857C42 From: "peter at cordes dot ca" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/99754] [sse2] new _mm_loadu_si16 and _mm_loadu_si32 implemented incorrectly Date: Fri, 11 Mar 2022 15:15:37 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Version: 11.0 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: peter at cordes dot ca X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Mar 2022 15:15:37 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99754 Peter Cordes changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |peter at cordes dot ca --- Comment #2 from Peter Cordes --- Can we get this patch applied soon? There aren't any other strict-aliasing-safe movd load intrinsics, but this one won't be portably usable while there are buggy GCC versions around. Until then, code should probably use something like inline __m128i movd(void *p){ return _mm_castps_si128(_mm_load_ss((const float*)p)); } (Which believe it or not is strict-aliasing safe even on integer data. At least it should be; last I tested it was across compilers, except maybe on = ICC. Would have to double-check there.)=