[Bug rtl-optimization/93974] [10 Regression] ICE in decompose_normal_address, at rtlanal.c:6403 on powerpc64le-linux-gnu since r10-6762

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93974

--- Comment #24 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Peter Bergner <berg...@gcc.gnu.org>:

https://gcc.gnu.org/g:dd75498db79675a1a0b73c25e5f110969ee72d9d

commit r10-7764-gdd75498db79675a1a0b73c25e5f110969ee72d9d
Author: Peter Bergner <berg...@linux.ibm.com>
Date:   Thu Apr 16 23:26:41 2020 -0500

    rs6000: Fix ICE in decompose_normal_address. [PR93974]

    Fix an ICE in decompose_normal_address(), which cannot handle Altivec AND:
    addresses, by disallowing them via implementing the target hook
    rs6000_cannot_substitute_mem_equiv_p.

    gcc/
            PR rtl-optimization/93974
            * config/rs6000/rs6000.c (TARGET_CANNOT_SUBSTITUTE_MEM_EQUIV_P):
Define.
            (rs6000_cannot_substitute_mem_equiv_p): New function.

    gcc/testsuite/
            PR rtl-optimization/93974
            * g++.dg/pr93974.C: New test.