[Bug debug/88723] [9 regression] PR debug/88635 patch breaks testsuite_shared.cc compilation

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88723

--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Feb  7 14:25:01 2019
New Revision: 268617

URL: https://gcc.gnu.org/viewcvs?rev=268617&root=gcc&view=rev
Log:
        Backported from mainline
        2019-01-07  Jakub Jelinek  <jakub@redhat.com>

        PR debug/88723
        * dwarf2out.c (const_ok_for_output_1): Remove redundant call to
        const_not_ok_for_debug_p target hook.
        (mem_loc_descriptor) <case UNSPEC>: Only call const_ok_for_output_1
        on UNSPEC and subexpressions thereof if all subexpressions of the
        UNSPEC are CONSTANT_P.

        2019-01-05  Jakub Jelinek  <jakub@redhat.com>

        PR debug/88635
        * dwarf2out.c (const_ok_for_output_1): Reject MINUS that contains
        SYMBOL_REF, CODE_LABEL or UNSPEC in subexpressions of second argument.
        Reject PLUS that contains SYMBOL_REF, CODE_LABEL or UNSPEC in
        subexpressions of both operands.
        (mem_loc_descriptor): Handle UNSPEC if target hook acks it and all the
        subrtxes are CONSTANT_P.

        * gcc.dg/debug/dwarf2/pr88635.c: New test.

Added:
    branches/gcc-8-branch/gcc/testsuite/gcc.dg/debug/dwarf2/pr88635.c
Modified:
    branches/gcc-8-branch/gcc/ChangeLog
    branches/gcc-8-branch/gcc/dwarf2out.c
    branches/gcc-8-branch/gcc/testsuite/ChangeLog