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From: "rsandifo at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/96341] New: Support mixed element widths for AArch64
 "omp declare simd" functions
Date: Mon, 27 Jul 2020 16:48:33 +0000
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X-Bugzilla-Version: 11.0
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96341

            Bug ID: 96341
           Summary: Support mixed element widths for AArch64 "omp declare
                    simd" functions
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: rsandifo at gcc dot gnu.org
  Target Milestone: ---
            Target: aarch64*-*-*

aarch64_simd_clone_compute_vecsize_and_simdlen currently rejects
functions that operate on a mixture of element sizes.  However,
the ABI has rules to handle those cases too.  See:

https://github.com/ARM-software/abi-aa/tree/master/vfabia64

for the full specification.  We should remove the current
restriction and handle mixed sizes in accordance with the
ABI rules.=