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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/111751] RISC-V: RVV unexpected vectorization
Date: Tue, 10 Oct 2023 12:20:15 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111751

--- Comment #19 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:70b5c6981fcdff246f90e57e91f3e1667eab2eb3

commit r14-4537-g70b5c6981fcdff246f90e57e91f3e1667eab2eb3
Author: Richard Biener <rguenther@suse.de>
Date:   Tue Oct 10 13:33:34 2023 +0200

    tree-optimization/111751 - support 1024 bit vector constant
reinterpretation

    The following ups the limit in fold_view_convert_expr to handle
    1024bit vectors as used by GCN and RVV.  It also robustifies
    the handling in visit_reference_op_load to properly give up when
    constants cannot be re-interpreted.

            PR tree-optimization/111751
            * fold-const.cc (fold_view_convert_expr): Up the buffer size
            to 128 bytes.
            * tree-ssa-sccvn.cc (visit_reference_op_load): Special case
            constants, giving up when re-interpretation to the target type
            fails.=