diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/lib/c-compat.exp')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/lib/c-compat.exp | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/lib/c-compat.exp b/gcc-4.9/gcc/testsuite/lib/c-compat.exp new file mode 100644 index 000000000..95a1fb9d7 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/lib/c-compat.exp @@ -0,0 +1,127 @@ +# Copyright (C) 2002-2014 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GCC; see the file COPYING3. If not see +# <http://www.gnu.org/licenses/>. + +# Please email any bugs, comments, and/or additions to this file to: +# gcc-patches@gcc.gnu.org + +# Globals. + +global compat_use_alt +global compat_same_alt +global compat_have_dfp +global compat_skip_list + +# This file defines procs for determining features supported by both C +# compilers for compatibility tests. + +load_lib target-supports.exp + +# +# compat-use-alt-compiler -- make the alternate compiler the default +# +proc compat-use-alt-compiler { } { + global GCC_UNDER_TEST ALT_CC_UNDER_TEST + global compat_same_alt compat_alt_caret compat_alt_color + global TEST_ALWAYS_FLAGS + + # We don't need to do this if the alternate compiler is actually + # the same as the compiler under test. + if { $compat_same_alt == 0 } then { + set GCC_UNDER_TEST $ALT_CC_UNDER_TEST + if { $compat_alt_caret == 0 } then { + regsub -- "-fno-diagnostics-show-caret" $TEST_ALWAYS_FLAGS "" TEST_ALWAYS_FLAGS + } + if { $compat_alt_color == 0 } then { + regsub -- "-fdiagnostics-color=never" $TEST_ALWAYS_FLAGS "" TEST_ALWAYS_FLAGS + } + } +} + +# +# compat-use-tst-compiler -- make compiler under test the default +# +proc compat-use-tst-compiler { } { + global GCC_UNDER_TEST compat_save_gcc_under_test + global compat_same_alt + global TEST_ALWAYS_FLAGS compat_save_TEST_ALWAYS_FLAGS + + # We don't need to do this if the alternate compiler is actually + # the same as the compiler under test. + + if { $compat_same_alt == 0 } then { + set GCC_UNDER_TEST $compat_save_gcc_under_test + set TEST_ALWAYS_FLAGS $compat_save_TEST_ALWAYS_FLAGS + } +} + +# Find out whether both compilers support decimal float types. +proc compat_setup_dfp { } { + global compat_use_alt + global compat_same_alt + global compat_have_dfp + global compat_alt_caret + global compat_alt_color + global TEST_ALWAYS_FLAGS compat_save_TEST_ALWAYS_FLAGS + + set compat_alt_caret 0 + set compat_alt_color 0 + set compat_save_TEST_ALWAYS_FLAGS $TEST_ALWAYS_FLAGS + + verbose "compat_setup_dfp: $compat_use_alt $compat_same_alt" 2 + + # Does the compiler under test support decimal float types? + compat-use-tst-compiler + set compat_have_dfp [check_effective_target_dfprt_nocache] + verbose "compat_have_dfp for tst compiler: $compat_have_dfp" 2 + + if { $compat_use_alt == 1 && $compat_same_alt == 0 } { + compat-use-alt-compiler + if { [check_no_compiler_messages_nocache compat_alt_has_caret object { + int dummy; } "-fno-diagnostics-show-caret"] != 0 } { + set compat_alt_caret 1 + } + if { [check_no_compiler_messages_nocache compat_alt_has_color object { + int dummy; } "-fdiagnostics-color=never"] != 0 } { + set compat_alt_color 1 + } + compat-use-tst-compiler + } + + # If there is an alternate compiler, does it support decimal float types? + if { $compat_have_dfp == 1 && $compat_use_alt == 1 && $compat_same_alt == 0 } { + compat-use-alt-compiler + set compat_have_dfp [check_effective_target_dfprt_nocache] + compat-use-tst-compiler + verbose "compat_have_dfp for alt compiler: $compat_have_dfp" 2 + } + + # If decimal float is not supported, add it to the skip list, which + # affects code in the header files. + if { $compat_have_dfp == 0 } { + global compat_skip_list + lappend compat_skip_list "DECIMAL_FLOAT" + } +} + +# If either compiler does not support decimal float types, skip this test. + +proc dg-require-compat-dfp { args } { + global compat_have_dfp + if { $compat_have_dfp == 0 } { + upvar dg-do-what dg-do-what + set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"] + } +} |