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openmpi/config/ompi_fortran_check_ignore_tkr.m4

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dnl -*- shell-script -*-
dnl
dnl Copyright (c) 2004-2006 The Trustees of Indiana University and Indiana
dnl University Research and Technology
dnl Corporation. All rights reserved.
dnl Copyright (c) 2004-2005 The University of Tennessee and The University
dnl of Tennessee Research Foundation. All rights
dnl reserved.
dnl Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
dnl University of Stuttgart. All rights reserved.
dnl Copyright (c) 2004-2005 The Regents of the University of California.
dnl All rights reserved.
dnl Copyright (c) 2007 Los Alamos National Security, LLC. All rights
dnl reserved.
dnl Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved.
dnl Copyright (c) 2009-2015 Cisco Systems, Inc. All rights reserved.
dnl $COPYRIGHT$
dnl
dnl Additional copyrights may follow
dnl
dnl $HEADER$
# Does this compiler support (void*)-like functionality for MPI choice
# buffers? If so, which flavor?
AC_DEFUN([OMPI_FORTRAN_CHECK_IGNORE_TKR], [
OPAL_VAR_SCOPE_PUSH([result happy type predecl])
OMPI_FORTRAN_IGNORE_TKR_PREDECL=
OMPI_FORTRAN_IGNORE_TKR_TYPE=
AS_VAR_PUSHDEF([fortran_ignore_tkr_data],
[ompi_cv_fortran_ignore_tkr_data])
# Note that we can only cache 1 value at a time, but this test
# needs to check for 2 things: the ignore TKR predecl and the
# type. So we encode them into a string of the form
# <1|0>:<type>:<predecl>. Ugh.
AC_CACHE_CHECK([Fortran compiler ignore TKR syntax],
fortran_ignore_tkr_data,
[_OMPI_FORTRAN_CHECK_IGNORE_TKR])
AS_VAR_COPY([result], [fortran_ignore_tkr_data])
# Parse the result
happy=`echo $result | cut -d: -f1`
type=`echo $result | cut -d: -f2`
predecl=`echo $result | cut -d: -f3-`
AS_IF([test $happy -eq 1],
[OMPI_FORTRAN_IGNORE_TKR_PREDECL=$predecl
OMPI_FORTRAN_IGNORE_TKR_TYPE=$type
$1],
[$2])
AS_VAR_POPDEF([fortran_ignore_tkr_data])
OPAL_VAR_SCOPE_POP
])
################
AC_DEFUN([_OMPI_FORTRAN_CHECK_IGNORE_TKR], [
OPAL_VAR_SCOPE_PUSH([happy ompi_fortran_ignore_tkr_predecl ompi_fortran_ignore_tkr_type])
# If we were called here, it means that the value was not cached,
# so we need to check several different things. Since CACHE_CHECK
# puts up a MSG_CHECKING, we need to terminate it with a bogus
# answer before doing the individual checks.
AC_MSG_RESULT([not cached; checking variants])
# Default values
ompi_fortran_ignore_tkr_predecl=!
ompi_fortran_ignore_tkr_type=real
# Vendor-neutral, TYPE(*) syntax
OMPI_FORTRAN_CHECK_IGNORE_TKR_SUB(
[!], [type(*)],
[TYPE(*), DIMENSION(*)],
[happy=1], [happy=0])
# GCC compilers
AS_IF([test $happy -eq 0],
[OMPI_FORTRAN_CHECK_IGNORE_TKR_SUB(
[!GCC\$ ATTRIBUTES NO_ARG_CHECK ::], [type(*), dimension(*)],
[!GCC\$ ATTRIBUTES NO_ARG_CHECK],
[happy=1], [happy=0])])
# Intel compilers
AS_IF([test $happy -eq 0],
[OMPI_FORTRAN_CHECK_IGNORE_TKR_SUB(
[!DEC\$ ATTRIBUTES NO_ARG_CHECK ::], [real, dimension(*)],
[!DEC\$ ATTRIBUTES NO_ARG_CHECK],
[happy=1], [happy=0])])
# Solaris Studio compilers
# Note that due to a compiler bug, we have been advised by Oracle to
# use the "character(*)" type
AS_IF([test $happy -eq 0],
[OMPI_FORTRAN_CHECK_IGNORE_TKR_SUB(
[!\$PRAGMA IGNORE_TKR], [character(*)],
[!\$PRAGMA IGNORE_TKR],
[happy=1], [happy=0])])
# Cray compilers
AS_IF([test $happy -eq 0],
[OMPI_FORTRAN_CHECK_IGNORE_TKR_SUB(
[!DIR\$ IGNORE_TKR], [real, dimension(*)],
[!DIR\$ IGNORE_TKR],
[happy=1], [happy=0])])
# IBM compilers
AS_IF([test $happy -eq 0],
[OMPI_FORTRAN_CHECK_IGNORE_TKR_SUB(
[!IBM* IGNORE_TKR], [real, dimension(*)],
[!IBM* IGNORE_TKR],
[happy=1], [happy=0])])
AS_VAR_SET(fortran_ignore_tkr_data,
[${happy}:${ompi_fortran_ignore_tkr_type}:${ompi_fortran_ignore_tkr_predecl}])
# Now put the original CACHE_CHECK MSG_CHECKING back so that it can
# output the MSG_RESULT.
AC_MSG_CHECKING([Fortran compiler ignore TKR syntax])
OPAL_VAR_SCOPE_POP
])dnl
###################################
# Generic check to see if Fortran compiler supports (void*)-like
# functionality
# $1: pre-decl qualifier line -- likely a compiler directive
# $2: parameter type
# $3: message for AC-MSG-CHECKING
# $4: action to take if the test passes
# $5: action to take if the test fails
AC_DEFUN([OMPI_FORTRAN_CHECK_IGNORE_TKR_SUB], [
OPAL_VAR_SCOPE_PUSH(msg)
AC_LANG_PUSH([Fortran])
AC_MSG_CHECKING([for Fortran compiler support of $3])
AC_COMPILE_IFELSE(AC_LANG_PROGRAM([],[[!
! Autoconf puts "program main" at the top
interface
subroutine force_assumed_shape(a, count)
integer :: count
complex, dimension(:,:) :: a
end subroutine force_assumed_shape
end interface
interface
subroutine foo(buffer, count)
$1 buffer
$2, intent(in) :: buffer
integer, intent(in) :: count
end subroutine foo
end interface
! Simple interface with an un-typed first argument (e.g., a choice buffer)
integer :: count
real :: buffer1(3)
character :: buffer2
complex :: buffer3(4,4)
complex, pointer, dimension(:,:) :: ptr
target :: buffer3
integer :: buffer4
ptr => buffer3
! Set some known values (somewhat irrelevant for this test, but just be
! sure that the values are initialized)
a = 17
buffer1(1) = 4.5
buffer1(2) = 6.7
buffer1(3) = 8.9
buffer2 = 'a'
! Call with one type for the first argument
call foo(buffer1, count)
! Call with a different type for the first argument
call foo(buffer2, count)
! Force us through an assumed shape
call force_assumed_shape(buffer3, count)
! Force a pointer call through an assumed shape (!)
ptr => buffer3
! Also try with a simple scalar integer
! (Intel 2016 compiler suite only partially supports GCC pragmas;
! they work with all the above buffer types, but fail with a
! simple scalar integer)
call foo(buffer4, count)
end program
subroutine force_assumed_shape(a, count)
integer :: count
real, dimension(:,:) :: a
call foo(a, count)
end subroutine force_assumed_shape
! Autoconf puts "end" after the last line
subroutine bogus
]]),
[msg=yes
ompi_fortran_ignore_tkr_predecl="$1"
ompi_fortran_ignore_tkr_type="$2"
$4],
[msg=no
$5])
AC_MSG_RESULT($msg)
AC_LANG_POP([Fortran])
OPAL_VAR_SCOPE_POP
])