re PR libfortran/80602 (Reduce stack usage for blocked matmul)

re PR libfortran/80602 (Reduce stack usage for blocked matmul)

2017-05-08  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/80602
	* m4/matmul_internal.m4:  'matmul_name`:  Change
	t1 to a VLA of the required size.
        * generated/matmul_c10.c: Regenerated.
        * generated/matmul_c16.c: Regenerated.
        * generated/matmul_c4.c: Regenerated.
        * generated/matmul_c8.c: Regenerated.
        * generated/matmul_i1.c: Regenerated.
        * generated/matmul_i16.c: Regenerated.
        * generated/matmul_i2.c: Regenerated.
        * generated/matmul_i4.c: Regenerated.
        * generated/matmul_i8.c: Regenerated.
        * generated/matmul_r10.c: Regenerated.
        * generated/matmul_r16.c: Regenerated.
        * generated/matmul_r4.c: Regenerated.
        * generated/matmul_r8.c: Regenerated.

2017-05-08  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/80602
	* gfortran.dg/matmul_15.f90:  New test case.

From-SVN: r247753