# Copyright (C) 2003-2021 Free Software Foundation, Inc.
#
# This file is part of GCC.
#
# GCC 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, or (at your option)
# any later version.
#
# GCC 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/>.

# This harness is for testing builtin support.  Each test has two files:
#
#    - foo.c defines the main testing function, main_test().
#    - foo-lib.c implements the library functions that foo.c is testing.
#
# The functions in foo-lib.c will often want to abort on certain inputs.
# They can use the global variable inside_main to see whether they are
# being called from the test program or part of the common runtime.
#
# In many cases, the library functions will behave as normal at -O0
# and abort when optimisation is enabled.  Such implementations should
# go into the lib/ directory so that they can be included by any test
# that needs them.  They shouldn't call any external functions in case
# those functions were overridden too.

load_lib torture-options.exp
load_lib c-torture.exp

torture-init
set-torture-options $C_TORTURE_OPTIONS {{}} $LTO_TORTURE_OPTIONS

set additional_flags "-fno-tree-dse -fno-tree-loop-distribute-patterns -fno-tracer -fno-ipa-ra -fno-inline-functions"
if [istarget "powerpc-*-darwin*"] {
   lappend additional_flags "-Wl,-multiply_defined,suppress"
}
if { [istarget *-*-eabi*]
     || [istarget *-*-elf]
     || [istarget *-*-mingw*]
     || [istarget *-*-rtems*] } {
   lappend additional_flags "-Wl,--allow-multiple-definition"
}

foreach src [lsort [find $srcdir/$subdir *.c]] {
    if {![string match *-lib.c $src] && [runtest_file_p $runtests $src]} {
	c-torture-execute [list $src \
			        [file root $src]-lib.c \
			        $srcdir/$subdir/lib/main.c] \
				$additional_flags
    }
}

torture-finish