[Bug c/83801] [8 Regression][avr] String constant in __flash not put into .progmem

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83801

--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Sat Jan 13 17:00:43 2018
New Revision: 256608

URL: https://gcc.gnu.org/viewcvs?rev=256608&root=gcc&view=rev
Log:
        PR c/83801
        * c-tree.h (decl_constant_value_1): Add a bool argument.
        * c-typeck.c (decl_constant_value_1): Add IN_INIT argument, allow
        returning a CONSTRUCTOR if it is true.  Use error_operand_p.
        (decl_constant_value): Adjust caller.
        * c-fold.c (c_fully_fold_internal): If in_init, pass true to
        decl_constant_value_1 as IN_INIT.  Otherwise, punt if
        decl_constant_value returns initializer that has BLKmode or
        array type.
        (c_fully_fold_internal) <case COMPONENT_REF>: Fold if !lval.

        * gcc.dg/pr83801.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr83801.c
Modified:
    trunk/gcc/c/ChangeLog
    trunk/gcc/c/c-fold.c
    trunk/gcc/c/c-tree.h
    trunk/gcc/c/c-typeck.c
    trunk/gcc/testsuite/ChangeLog