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From: "mkretz at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/114958] New: use __builtin_shufflevector for
 std::experimental::simd split and concat (at least the common cases) to
 enable better optimizations
Date: Mon, 06 May 2024 10:29:29 +0000
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: libstdc++
X-Bugzilla-Version: 15.0
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X-Bugzilla-Who: mkretz at gcc dot gnu.org
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114958

            Bug ID: 114958
           Summary: use __builtin_shufflevector for
                    std::experimental::simd split and concat (at least the
                    common cases) to enable better optimizations
           Product: gcc
           Version: 15.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: mkretz at gcc dot gnu.org
          Reporter: mkretz at gcc dot gnu.org
  Target Milestone: ---

PR114908 presents a missed optimization that would not occur if simd's split
and concat would make better use of __builtin_shufflevector.=