[Bug fortran/83540] [8 Regression] Invalid code with MATMUL, -fno-realloc-lhs -ffrontend-optimize

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83540

--- Comment #6 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Author: tkoenig
Date: Tue Dec 26 23:29:20 2017
New Revision: 256003

URL: https://gcc.gnu.org/viewcvs?rev=256003&root=gcc&view=rev
Log:
2017-12-26  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/83540
        * frontend-passes.c (create_var): If an array to be created
        has unknown size and -fno-realloc-lhs is in effect,
        return NULL.

2017-12-26  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/83540
        * gfortran.dg/inline_matmul_20.f90: New test.


Added:
    trunk/gcc/testsuite/gfortran.dg/inline_matmul_20.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/frontend-passes.c
    trunk/gcc/testsuite/ChangeLog