[Bug target/91052] [10 Regression] ICE in fix_reg_equiv_init, at ira.c:2705

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91052

--- Comment #16 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:4d2248bec5d22061ab252724bd59d45c8a47e009

commit r10-6591-g4d2248bec5d22061ab252724bd59d45c8a47e009
Author: Kewen Lin <linkw@linux.ibm.com>
Date:   Tue Feb 11 23:22:02 2020 -0600

    [IRA] Fix PR91052 by skipping multiple_sets insn in combine_and_move_insns

    As PR91052's comments show, commit r272731 exposed one issue in function
    combine_and_move_insns.  Function combine_and_move_insns perform the
    unexpected movement which alter live interval of some register, leading
    incorrect value to be used.  See PR91052 for details.

    2020-02-12  Kewen Lin  <linkw@gcc.gnu.org>
        PR target/91052
        * ira.c (combine_and_move_insns): Skip multiple_sets def_insn.