[Bug fortran/29550] Optimize -fexternal-blas calls for conjg()

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=29550

--- Comment #14 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Author: tkoenig
Date: Tue Sep 18 19:59:46 2018
New Revision: 264411

URL: https://gcc.gnu.org/viewcvs?rev=264411&root=gcc&view=rev
Log:
2018-09-18  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/29550
        * gfortran.h (gfc_expr): Add external_blas flag.
        * frontend-passes.c (matrix_case): Add case A2TB2T.
        (optimize_namespace): Handle flag_external_blas by
        calling call_external_blas.
        (get_array_inq_function): Add argument okind. If
        it is nonzero, use it as the kind of argument
        to be used.
        (inline_limit_check): Remove m_case argument, add
        limit argument instead.  Remove assert about m_case.
        Set the limit for inlining from the limit argument.
        (matmul_lhs_realloc): Handle case A2TB2T.
        (inline_matmul_assign): Handle inline limit for other cases with
        two rank-two matrices.  Remove no-op calls to inline_limit_check.
        (call_external_blas): New function.
        * trans-intrinsic.c (gfc_conv_intrinsic_funcall): Do not add
        argument to external BLAS if external_blas is already set.

2018-09-18  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/29550
        * gfortran.dg/inline_matmul_13.f90: Adjust count for
        _gfortran_matmul.
        * gfortran.dg/inline_matmul_16.f90: Likewise.
        * gfortran.dg/promotion_2.f90: Add -fblas-matmul-limit=1.  Scan
        for dgemm instead of dgemm_.  Add call to random_number to make
        standard conforming.
        * gfortran.dg/matmul_blas_1.f90: New test.
        * gfortran.dg/matmul_bounds_14.f: New test.
        * gfortran.dg/matmul_bounds_15.f: New test.
        * gfortran.dg/matmul_bounds_16.f: New test.
        * gfortran.dg/blas_gemm_routines.f: New test / additional file for
        preceding tests.


Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/testsuite/ChangeLog