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141 lines
4.6 KiB
Plaintext
141 lines
4.6 KiB
Plaintext
# Copyright (C) 2002-2019 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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# <http://www.gnu.org/licenses/>.
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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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load_lib target-libpath.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 compat_alt_caret compat_alt_color compat_no_line_no
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global TEST_ALWAYS_FLAGS
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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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if { $compat_alt_caret == 0 } then {
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regsub -- "-fno-diagnostics-show-caret" $TEST_ALWAYS_FLAGS "" TEST_ALWAYS_FLAGS
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}
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if { $compat_alt_color == 0 } then {
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regsub -- "-fdiagnostics-color=never" $TEST_ALWAYS_FLAGS "" TEST_ALWAYS_FLAGS
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}
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if { $compat_no_line_no == 0 } then {
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regsub -- "-fno-diagnostics-show-line-numbers" $TEST_ALWAYS_FLAGS "" TEST_ALWAYS_FLAGS
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}
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restore_gcc_exec_prefix_env_var
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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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global TEST_ALWAYS_FLAGS compat_save_TEST_ALWAYS_FLAGS
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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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set TEST_ALWAYS_FLAGS $compat_save_TEST_ALWAYS_FLAGS
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set_gcc_exec_prefix_env_var
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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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global compat_alt_caret
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global compat_alt_color
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global compat_no_line_no
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global TEST_ALWAYS_FLAGS compat_save_TEST_ALWAYS_FLAGS
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set compat_alt_caret 0
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set compat_alt_color 0
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set compat_no_line_no 0
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set compat_save_TEST_ALWAYS_FLAGS $TEST_ALWAYS_FLAGS
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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 { $compat_use_alt == 1 && $compat_same_alt == 0 } {
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compat-use-alt-compiler
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if { [check_no_compiler_messages_nocache compat_alt_has_caret object {
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int dummy; } "-fno-diagnostics-show-caret"] != 0 } {
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set compat_alt_caret 1
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}
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if { [check_no_compiler_messages_nocache compat_alt_has_color object {
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int dummy; } "-fdiagnostics-color=never"] != 0 } {
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set compat_alt_color 1
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}
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if { [check_no_compiler_messages_nocache compat_alt_has_no_line_no object {
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int dummy; } "-fno-diagnostics-show-line-numbers"] != 0 } {
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set compat_no_line_no 1
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}
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compat-use-tst-compiler
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}
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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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