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[/] [openrisc/] [trunk/] [gnu-stable/] [gcc-4.5.1/] [gcc/] [testsuite/] [lib/] [c-compat.exp] - Blame information for rev 826

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1 306 jeremybenn
# Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008
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# Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with GCC; see the file COPYING3.  If not see
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# .
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# Please email any bugs, comments, and/or additions to this file to:
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# gcc-patches@gcc.gnu.org
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# Globals.
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global compat_use_alt
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global compat_same_alt
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global compat_have_dfp
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global compat_skip_list
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# This file defines procs for determining features supported by both C
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# compilers for compatibility tests.
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load_lib target-supports.exp
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#
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# compat-use-alt-compiler -- make the alternate compiler the default
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#
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proc compat-use-alt-compiler { } {
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    global GCC_UNDER_TEST ALT_CC_UNDER_TEST
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    global compat_same_alt
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    # We don't need to do this if the alternate compiler is actually
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    # the same as the compiler under test.
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    if { $compat_same_alt == 0 } then {
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        set GCC_UNDER_TEST $ALT_CC_UNDER_TEST
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    }
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}
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#
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# compat-use-tst-compiler -- make compiler under test the default
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#
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proc compat-use-tst-compiler { } {
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    global GCC_UNDER_TEST compat_save_gcc_under_test
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    global compat_same_alt
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    # We don't need to do this if the alternate compiler is actually
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    # the same as the compiler under test.
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    if { $compat_same_alt == 0 } then {
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        set GCC_UNDER_TEST $compat_save_gcc_under_test
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    }
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}
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# Find out whether both compilers support decimal float types.
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proc compat_setup_dfp { } {
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    global compat_use_alt
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    global compat_same_alt
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    global compat_have_dfp
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    verbose "compat_setup_dfp: $compat_use_alt $compat_same_alt" 2
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    # Does the compiler under test support decimal float types?
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    compat-use-tst-compiler
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    set compat_have_dfp [check_effective_target_dfprt_nocache]
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    verbose "compat_have_dfp for tst compiler: $compat_have_dfp" 2
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    # If there is an alternate compiler, does it support decimal float types?
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    if { $compat_have_dfp == 1 && $compat_use_alt == 1 && $compat_same_alt == 0 } {
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        compat-use-alt-compiler
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        set compat_have_dfp [check_effective_target_dfprt_nocache]
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        compat-use-tst-compiler
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        verbose "compat_have_dfp for alt compiler: $compat_have_dfp" 2
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    }
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    # If decimal float is not supported, add it to the skip list, which
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    # affects code in the header files.
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    if { $compat_have_dfp == 0 } {
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        global compat_skip_list
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        lappend compat_skip_list "DECIMAL_FLOAT"
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    }
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}
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# If either compiler does not support decimal float types, skip this test.
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proc dg-require-compat-dfp { args } {
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    global compat_have_dfp
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    if { $compat_have_dfp == 0 } {
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        upvar dg-do-what dg-do-what
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        set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
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    }
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}

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