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Subject: [Bug tree-optimization/98268] [10 Regression] ICE: verify_gimple
 failed with LTO and SVE
Date: Fri, 23 Apr 2021 09:10:35 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98268

--- Comment #11 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Richard Sandiford
<rsandifo@gcc.gnu.org>:

https://gcc.gnu.org/g:18a190c3ee32548de3888b7a64f701999893727b

commit r10-9750-g18a190c3ee32548de3888b7a64f701999893727b
Author: Richard Sandiford <richard.sandiford@arm.com>
Date:   Fri Apr 23 10:09:39 2021 +0100

    gimple-fold: Recompute ADDR_EXPR flags after folding a TMR [PR98268]

    The gimple verifier picked up that an ADDR_EXPR of a MEM_REF was not
    marked TREE_CONSTANT even though the address was in fact invariant.
    This came from folding a &TARGET_MEM_REF with constant operands to
    a &MEM_REF; &TARGET_MEM_REF is never treated as TREE_CONSTANT
    but &MEM_REF can be.

    gcc/
            PR tree-optimization/98268
            * gimple-fold.c (maybe_canonicalize_mem_ref_addr): Call
            recompute_tree_invariant_for_addr_expr after successfully
            folding a TARGET_MEM_REF that occurs inside an ADDR_EXPR.

    gcc/testsuite/
            PR tree-optimization/98268
            * gcc.target/aarch64/sve/pr98268-1.c: New test.
            * gcc.target/aarch64/sve/pr98268-2.c: Likewise.

    (cherry picked from commit c778968339afd140380a46edbade054667c7dce2)=