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Test scalbn and scalbln in all rounding modes, add more tests of negative arguments.
Continuing the move to systematically testing libm functions in all rounding modes with ALL_RM_TEST, this patch converts the tests of scalbn and scalbln to use that macro. Those tests include cases of underflow and overflow, meaning the expected results depend on the rounding mode. For convenience in writing such tests manually, the patch adds the notation plus_oflow, minus_oflow, plus_uflow and minus_uflow for overflowing / underflowing results of each sign appropriate to the rounding mode being used, and gen-libm-test.pl is made to substitute in the appropriate values. The tests of underflow and overflow are extended to include negative arguments to provide better coverage (otherwise minus_oflow and minus_uflow wouldn't have been used at all). (A subsequent patch will make ldexp use the scalbn tests, as those functions are equivalent for binary floating point.) Tested x86_64 and x86. * math/gen-libm-test.pl (parse_args): Handle plus_oflow, minus_oflow, plus_uflow and minus_uflow in expected results. * math/libm-test.inc (scalbn_test_data): Add more tests of negative arguments. Use plus_oflow, minus_oflow, plus_uflow and minus_uflow. (scalbn_test): Use ALL_RM_TEST. (scalbln_test_data): Add more tests of negative arguments. Use plus_oflow, minus_oflow, plus_uflow and minus_uflow. (scalbln_test): Use ALL_RM_TEST.
This commit is contained in:
Joseph Myers
parent
c8f8fa1504
commit
b29b6bb8fe
12
ChangeLog
12
ChangeLog
@ -1,3 +1,15 @@
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2014-03-18 Joseph Myers <joseph@codesourcery.com>
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* math/gen-libm-test.pl (parse_args): Handle plus_oflow,
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minus_oflow, plus_uflow and minus_uflow in expected results.
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* math/libm-test.inc (scalbn_test_data): Add more tests of
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negative arguments. Use plus_oflow, minus_oflow, plus_uflow and
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minus_uflow.
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(scalbn_test): Use ALL_RM_TEST.
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(scalbln_test_data): Add more tests of negative arguments. Use
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plus_oflow, minus_oflow, plus_uflow and minus_uflow.
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(scalbln_test): Use ALL_RM_TEST.
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2014-03-18 Roland McGrath <roland@hack.frob.com>
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* scripts/abilist.awk: Ignore symbols marked with .hidden.
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@ -158,7 +158,8 @@ sub parse_args {
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my (@special);
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my ($call_args);
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my ($ignore_result_any, $ignore_result_all);
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my ($num_res, @args_res, $start_rm, $this_start_rm);
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my ($num_res, @args_res, @start_rm, $rm);
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my (@plus_oflow, @minus_oflow, @plus_uflow, @minus_uflow);
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($descr_args, $descr_res) = split /_/,$descr, 2;
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@ -215,15 +216,15 @@ sub parse_args {
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# consistency check
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if ($#args_res == $num_res - 1) {
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# One set of results for all rounding modes, no flags.
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$start_rm = [ 0, 0, 0, 0 ];
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@start_rm = ( 0, 0, 0, 0 );
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} elsif ($#args_res == $num_res) {
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# One set of results for all rounding modes, with flags.
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die ("wrong number of arguments")
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unless ($args_res[$#args_res] =~ /EXCEPTION|ERRNO|IGNORE_ZERO_INF_SIGN|TEST_NAN_SIGN|NO_TEST_INLINE|XFAIL_TEST/);
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$start_rm = [ 0, 0, 0, 0 ];
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@start_rm = ( 0, 0, 0, 0 );
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} elsif ($#args_res == 4 * $num_res + 3) {
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# One set of results per rounding mode, with flags.
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$start_rm = [ 0, $num_res + 1, 2 * $num_res + 2, 3 * $num_res + 3 ];
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@start_rm = ( 0, $num_res + 1, 2 * $num_res + 2, 3 * $num_res + 3 );
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} else {
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die ("wrong number of arguments");
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}
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@ -253,8 +254,12 @@ sub parse_args {
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}
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@descr = split //,$descr_res;
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foreach $this_start_rm (@$start_rm) {
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$current_arg = $this_start_rm;
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@plus_oflow = qw(max_value plus_infty max_value plus_infty);
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@minus_oflow = qw(minus_infty minus_infty -max_value -max_value);
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@plus_uflow = qw(plus_zero plus_zero plus_zero min_subnorm_value);
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@minus_uflow = qw(-min_subnorm_value minus_zero minus_zero minus_zero);
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for ($rm = 0; $rm <= 3; $rm++) {
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$current_arg = $start_rm[$rm];
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$ignore_result_any = 0;
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$ignore_result_all = 1;
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$cline_res = "";
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@ -313,6 +318,10 @@ sub parse_args {
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$cline_res .= ", $run_extra, $extra_expected";
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}
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$cline_res =~ s/^, //;
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$cline_res =~ s/plus_oflow/$plus_oflow[$rm]/g;
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$cline_res =~ s/minus_oflow/$minus_oflow[$rm]/g;
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$cline_res =~ s/plus_uflow/$plus_uflow[$rm]/g;
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$cline_res =~ s/minus_uflow/$minus_uflow[$rm]/g;
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$cline .= ", { $cline_res }";
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}
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print $file " $cline },\n";
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@ -9805,23 +9805,29 @@ static const struct test_fi_f_data scalbn_test_data[] =
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TEST_fi_f (scalbn, 1, 0L, 1, NO_INEXACT_EXCEPTION),
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TEST_fi_f (scalbn, 1, INT_MAX, plus_infty, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, 1, INT_MIN, plus_zero, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, max_value, INT_MAX, plus_infty, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, max_value, INT_MIN, plus_zero, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, min_value, INT_MAX, plus_infty, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, min_value, INT_MIN, plus_zero, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, min_value / 4, INT_MAX, plus_infty, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, min_value / 4, INT_MIN, plus_zero, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, 1, INT_MAX, plus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, 1, INT_MIN, plus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, max_value, INT_MAX, plus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, max_value, INT_MIN, plus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, min_value, INT_MAX, plus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, min_value, INT_MIN, plus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, min_value / 4, INT_MAX, plus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, min_value / 4, INT_MIN, plus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, -1, INT_MAX, minus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, -1, INT_MIN, minus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, -max_value, INT_MAX, minus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, -max_value, INT_MIN, minus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, -min_value, INT_MAX, minus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, -min_value, INT_MIN, minus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, -min_value / 4, INT_MAX, minus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fi_f (scalbn, -min_value / 4, INT_MIN, minus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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};
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static void
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scalbn_test (void)
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{
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START (scalbn, 1);
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RUN_TEST_LOOP_fi_f (scalbn, scalbn_test_data, );
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END;
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ALL_RM_TEST (scalbn, 1, scalbn_test_data, RUN_TEST_LOOP_fi_f, END);
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}
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@ -9839,43 +9845,67 @@ static const struct test_fl_f_data scalbln_test_data[] =
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TEST_fl_f (scalbln, 1, 0L, 1, NO_INEXACT_EXCEPTION),
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TEST_fl_f (scalbln, 1, INT_MAX, plus_infty, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, 1, INT_MIN, plus_zero, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, max_value, INT_MAX, plus_infty, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, max_value, INT_MIN, plus_zero, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value, INT_MAX, plus_infty, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value, INT_MIN, plus_zero, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value / 4, INT_MAX, plus_infty, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value / 4, INT_MIN, plus_zero, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, 1, INT_MAX, plus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, 1, INT_MIN, plus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, max_value, INT_MAX, plus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, max_value, INT_MIN, plus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value, INT_MAX, plus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value, INT_MIN, plus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value / 4, INT_MAX, plus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value / 4, INT_MIN, plus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, 1, LONG_MAX, plus_infty, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, 1, LONG_MIN, plus_zero, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, max_value, LONG_MAX, plus_infty, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, max_value, LONG_MIN, plus_zero, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value, LONG_MAX, plus_infty, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value, LONG_MIN, plus_zero, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value / 4, LONG_MAX, plus_infty, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value / 4, LONG_MIN, plus_zero, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -1, INT_MAX, minus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -1, INT_MIN, minus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -max_value, INT_MAX, minus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -max_value, INT_MIN, minus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -min_value, INT_MAX, minus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -min_value, INT_MIN, minus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -min_value / 4, INT_MAX, minus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -min_value / 4, INT_MIN, minus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, 1, LONG_MAX, plus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, 1, LONG_MIN, plus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, max_value, LONG_MAX, plus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, max_value, LONG_MIN, plus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value, LONG_MAX, plus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value, LONG_MIN, plus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value / 4, LONG_MAX, plus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value / 4, LONG_MIN, plus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -1, LONG_MAX, minus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -1, LONG_MIN, minus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -max_value, LONG_MAX, minus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -max_value, LONG_MIN, minus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -min_value, LONG_MAX, minus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -min_value, LONG_MIN, minus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -min_value / 4, LONG_MAX, minus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -min_value / 4, LONG_MIN, minus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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#if LONG_MAX >= 0x100000000
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TEST_fl_f (scalbln, 1, 0x88000000L, plus_infty, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, 1, -0x88000000L, plus_zero, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, max_value, 0x88000000L, plus_infty, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, max_value, -0x88000000L, plus_zero, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value, 0x88000000L, plus_infty, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value, -0x88000000L, plus_zero, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value / 4, 0x88000000L, plus_infty, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value / 4, -0x88000000L, plus_zero, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, 1, 0x88000000L, plus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, 1, -0x88000000L, plus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, max_value, 0x88000000L, plus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, max_value, -0x88000000L, plus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value, 0x88000000L, plus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value, -0x88000000L, plus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value / 4, 0x88000000L, plus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, min_value / 4, -0x88000000L, plus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -1, 0x88000000L, minus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -1, -0x88000000L, minus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -max_value, 0x88000000L, minus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -max_value, -0x88000000L, minus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -min_value, 0x88000000L, minus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -min_value, -0x88000000L, minus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -min_value / 4, 0x88000000L, minus_oflow, INEXACT_EXCEPTION|OVERFLOW_EXCEPTION),
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TEST_fl_f (scalbln, -min_value / 4, -0x88000000L, minus_uflow, INEXACT_EXCEPTION|UNDERFLOW_EXCEPTION),
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#endif
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};
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static void
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scalbln_test (void)
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{
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START (scalbln, 1);
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RUN_TEST_LOOP_fl_f (scalbln, scalbln_test_data, );
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END;
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ALL_RM_TEST (scalbln, 1, scalbln_test_data, RUN_TEST_LOOP_fl_f, END);
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}
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