PR libfortran/26985

	* m4/matmul.m4: Correct the condition for the memset call,
	and remove the unneeded call to size0.
	* generated/matmul_r4.c: Regenerate.
	* generated/matmul_r8.c: Regenerate.
	* generated/matmul_r10.c: Regenerate.
	* generated/matmul_r16.c: Regenerate.
	* generated/matmul_c4.c: Regenerate.
	* generated/matmul_c8.c: Regenerate.
	* generated/matmul_c10.c: Regenerate.
	* generated/matmul_c16.c: Regenerate.
	* generated/matmul_i4.c: Regenerate.
	* generated/matmul_i8.c: Regenerate.
	* generated/matmul_i16.c: Regenerate.

	* gfortran.dg/matmul_2.f90: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@113552 138bc75d-0d04-0410-961f-82ee72b054a4