Don't include individual test ulps in libm-test-ulps.
authorJoseph Myers <joseph@codesourcery.com>
Wed, 5 Mar 2014 15:02:38 +0000 (15:02 +0000)
committerJoseph Myers <joseph@codesourcery.com>
Wed, 5 Mar 2014 15:02:38 +0000 (15:02 +0000)
commite6b6a85705be16373fb3f78ef998edc62150499c
tree067f2c96d39062ad178f630e42a30322ae193744
parent6539be6e48912892997eea6afc21883ba1fb8714
Don't include individual test ulps in libm-test-ulps.

As recently discussed
<https://sourceware.org/ml/libc-alpha/2014-02/msg00670.html>, it
doesn't seem particularly useful for libm-test-ulps files to contain
huge amounts of data on ulps for individual tests; just the global
maximum observed ulps for each function, together with the
verification of exceptions, errno and special results such as
infinities and NaNs for each test, suffices to verify that a
function's behavior on the given test inputs is within the expected
accuracy.  Removing this data reduces source tree churn caused by
updates to these files when libm tests are added, and reduces the
frequency with which testsuite additions actually need libm-test-ulps
changes at all.

Accordingly, this patch removes that data, so that individual tests
get checked against the global bounds for the given function and only
generate an error if those are exceeded.  Tested x86_64 (including
verifying that if an ulps value is artificially reduced, the tests do
indeed fail as they should and "make regen-ulps" generates the
expected changes).

* math/libm-test.inc (struct ulp_data): Don't refer to ulps for
individual tests in comment.
(libm-test-ulps.h): Don't refer to test_ulps in #include comment.
(prev_max_error): New variable.
(prev_real_max_error): Likewise.
(prev_imag_max_error): Likewise.
(compare_ulp_data): Don't refer to test names in comment.
(find_test_ulps): Remove function.
(find_function_ulps): Likewise.
(find_complex_function_ulps): Likewise.
(init_max_error): Take function name as argument.  Look up ulps
for that function.
(print_ulps): Remove function.
(print_max_error): Use prev_max_error instead of calling
find_function_ulps.
(print_complex_max_error): Use prev_real_max_error and
prev_imag_max_error instead of calling find_complex_function_ulps.
(check_float_internal): Take max_ulp parameter instead of calling
find_test_ulps.  Don't call print_ulps.
(check_float): Update call to check_float_internal.
(check_complex): Update calls to check_float_internal.
(START): Pass argument to init_max_error.
* math/gen-libm-test.pl (%results): Don't include "kind"
information.
(parse_ulps): Don't handle ulps of individual tests.
(print_ulps_file): Likewise.
(output_ulps): Likewise.
* math/README.libm-test: Update.
* manual/libm-err-tab.pl (parse_ulps): Don't handle ulps of
individual tests.
* sysdeps/aarch64/libm-test-ulps: Remove individual test ulps.
* sysdeps/alpha/fpu/libm-test-ulps: Likewise.
* sysdeps/arm/libm-test-ulps: Likewise.
* sysdeps/i386/fpu/libm-test-ulps: Likewise.
* sysdeps/ia64/fpu/libm-test-ulps: Likewise.
* sysdeps/m68k/coldfire/fpu/libm-test-ulps: Likewise.
* sysdeps/m68k/m680x0/fpu/libm-test-ulps: Likewise.
* sysdeps/microblaze/libm-test-ulps: Likewise.
* sysdeps/mips/mips32/libm-test-ulps: Likewise.
* sysdeps/mips/mips64/libm-test-ulps: Likewise.
* sysdeps/powerpc/fpu/libm-test-ulps: Likewise.
* sysdeps/powerpc/nofpu/libm-test-ulps: Likewise.
* sysdeps/s390/fpu/libm-test-ulps: Likewise.
* sysdeps/sh/libm-test-ulps: Likewise.
* sysdeps/sparc/fpu/libm-test-ulps: Likewise.
* sysdeps/tile/libm-test-ulps: Likewise.
* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.

* sysdeps/hppa/fpu/libm-test-ulps: Remove individual test ulps.
24 files changed:
ChangeLog
manual/libm-err-tab.pl
math/README.libm-test
math/gen-libm-test.pl
math/libm-test.inc
ports/ChangeLog.hppa
ports/sysdeps/hppa/fpu/libm-test-ulps
sysdeps/aarch64/libm-test-ulps
sysdeps/alpha/fpu/libm-test-ulps
sysdeps/arm/libm-test-ulps
sysdeps/i386/fpu/libm-test-ulps
sysdeps/ia64/fpu/libm-test-ulps
sysdeps/m68k/coldfire/fpu/libm-test-ulps
sysdeps/m68k/m680x0/fpu/libm-test-ulps
sysdeps/microblaze/libm-test-ulps
sysdeps/mips/mips32/libm-test-ulps
sysdeps/mips/mips64/libm-test-ulps
sysdeps/powerpc/fpu/libm-test-ulps
sysdeps/powerpc/nofpu/libm-test-ulps
sysdeps/s390/fpu/libm-test-ulps
sysdeps/sh/libm-test-ulps
sysdeps/sparc/fpu/libm-test-ulps
sysdeps/tile/libm-test-ulps
sysdeps/x86_64/fpu/libm-test-ulps