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[Bug target/70708] Suboptimal code generated when using _mm_set_sd (X64)
- From: "hjl.tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 19 Apr 2016 00:35:40 +0000
- Subject: [Bug target/70708] Suboptimal code generated when using _mm_set_sd (X64)
- Auto-submitted: auto-generated
- References: <bug-70708-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70708
--- Comment #16 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Marc Glisse from comment #15)
> MyMinV2 returns a double, not a __m128d. I tried to read what the ABI says
> about the unused upper part of SSE registers when passing/returning a double
> and couldn't find any information. Could you explain in more details what
> makes MyMinV2 so different from MyMinV1? I appear to be missing some crucial
> piece of information here :-(
I opened PR 70721 for the _mm_min_sd issue.