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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/107412] Miss to fold LEN_{LOAD,STORE} when
 the specified length equal to vector length
Date: Mon, 05 Dec 2022 05:28:11 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107412

--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Kewen Lin <linkw@gcc.gnu.org>:

https://gcc.gnu.org/g:380d62c14c99d8df13b7a86660e7ee67d01ad827

commit r13-4488-g380d62c14c99d8df13b7a86660e7ee67d01ad827
Author: Kewen Lin <linkw@linux.ibm.com>
Date:   Sun Dec 4 23:27:08 2022 -0600

    gimple-fold: Refine gimple_fold_partial_load_store_mem_ref [PR107412]

    Following Richard's review comments, this patch is to use
    untruncated type for the length used for IFN_LEN_{LOAD,STORE}
    instead of "unsigned int" for better robustness.  It also
    avoid to use to_constant and tree arithmetic for subtraction.

    Co-authored-by: Richard Sandiford  <richard.sandiford@arm.com>

            PR tree-optimization/107412

    gcc/ChangeLog:

            * gimple-fold.cc (gimple_fold_partial_load_store_mem_ref): Use
            untruncated type for the length, and avoid to_constant and tree
            arithmetic for subtraction.=