| # Copyright (C) 2002-2021 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 |
| load_lib target-libpath.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 compat_no_line_no |
| global compat_alt_urls compat_alt_plain_output |
| 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 |
| |
| # These flags are no longer added to TEST_ALWAYS_FLAGS by prune.exp |
| # because they are subsumed by -fdiagnostics-plain-output. Add them back |
| # for compatibility testing with older compilers that do not understand |
| # -fdiagnostics-plain-output. |
| set TEST_ALWAYS_FLAGS "-fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers -fdiagnostics-color=never -fdiagnostics-urls=never $TEST_ALWAYS_FLAGS" |
| |
| if { $compat_alt_caret == 0 } then { |
| regsub -all -- "-fno-diagnostics-show-caret" $TEST_ALWAYS_FLAGS "" TEST_ALWAYS_FLAGS |
| } |
| if { $compat_alt_color == 0 } then { |
| regsub -all -- "-fdiagnostics-color=never" $TEST_ALWAYS_FLAGS "" TEST_ALWAYS_FLAGS |
| } |
| if { $compat_alt_urls == 0 } then { |
| regsub -all -- "-fdiagnostics-urls=never" $TEST_ALWAYS_FLAGS "" TEST_ALWAYS_FLAGS |
| } |
| if { $compat_no_line_no == 0 } then { |
| regsub -all -- "-fno-diagnostics-show-line-numbers" $TEST_ALWAYS_FLAGS "" TEST_ALWAYS_FLAGS |
| } |
| if { $compat_alt_plain_output == 0 } then { |
| regsub -all -- "-fdiagnostics-plain-output" $TEST_ALWAYS_FLAGS "" TEST_ALWAYS_FLAGS |
| } |
| restore_gcc_exec_prefix_env_var |
| } |
| } |
| |
| # |
| # 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 |
| set_gcc_exec_prefix_env_var |
| } |
| } |
| |
| # 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 compat_alt_urls |
| global compat_alt_plain_output |
| global compat_no_line_no |
| global TEST_ALWAYS_FLAGS compat_save_TEST_ALWAYS_FLAGS |
| |
| set compat_alt_caret 0 |
| set compat_alt_color 0 |
| set compat_alt_urls 0 |
| set compat_alt_plain_output 0 |
| set compat_no_line_no 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 |
| } |
| if { [check_no_compiler_messages_nocache compat_alt_has_urls object { |
| int dummy; } "-fdiagnostics-urls=never"] != 0 } { |
| set compat_alt_urls 1 |
| } |
| if { [check_no_compiler_messages_nocache compat_alt_has_no_line_no object { |
| int dummy; } "-fno-diagnostics-show-line-numbers"] != 0 } { |
| set compat_no_line_no 1 |
| } |
| if { [check_no_compiler_messages_nocache compat_alt_has_plain_output object { |
| int dummy; } "-fdiagnostics-plain-output"] != 0 } { |
| set compat_alt_plain_output 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"] |
| } |
| } |