gcc/libstdc++-v3/scripts/check_simd

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libstdc++: Add simd testsuite Add a new check-simd target to the testsuite. The new target creates a subdirectory, generates the necessary Makefiles, and spawns submakes to build and run the tests. Running this testsuite with defaults on my machine takes half of the time the dejagnu testsuite required to only determine whether to run tests. Since the simd testsuite integrated in dejagnu increased the time of the whole libstdc++ testsuite by ~100% this approach is a compromise for speed while not sacrificing coverage too much. Since the test driver is invoked individually per test executable from a Makefile, make's jobserver (-j) trivially parallelizes testing. Testing different flags and with simulator (or remote execution) is possible. E.g. `make check-simd DRIVEROPTS=-q target_list="unix{-m64,-m32}{-march=sandybridge,-march=skylake-avx512}{,- ffast-math}"` runs the testsuite 8 times in different subdirectories, using 8 different combinations of compiler flags, only outputs failing tests (-q), and prints all summaries at the end. It skips most ABI tags by default unless --run-expensive is passed to DRIVEROPTS or GCC_TEST_RUN_EXPENSIVE is not empty. To use a simulator, the CHECK_SIMD_CONFIG variable needs to point to a shell script which calls `define_target <name> <flags> <simulator>` and set target_list as needed. E.g.: case "$target_triplet" in x86_64-*) target_list="unix{-march=sandybridge,-march=skylake-avx512} ;; powerpc64le-*) define_target power8 "-static -mcpu=power8" "/usr/bin/qemu-ppc64le -cpu power8" define_target power9 -mcpu=power9 "$HOME/bin/run_on_gcc135" target_list="power8 power9{,-ffast-math}" ;; esac libstdc++-v3/ChangeLog: * scripts/check_simd: New file. This script is called from the the check-simd target. It determines a set of compiler flags and simulator setups for calling generate_makefile.sh and passes the information back to the check-simd target, which recurses to the generated Makefiles. * scripts/create_testsuite_files: Remove files below simd/tests/ from testsuite_files and place them in testsuite_files_simd. * testsuite/Makefile.am: Add testsuite_files_simd. Add check-simd target. * testsuite/Makefile.in: Regenerate. * testsuite/experimental/simd/driver.sh: New file. This script compiles and runs a given simd test, logging its output and status. It uses the timeout command to implement compile and test timeouts. * testsuite/experimental/simd/generate_makefile.sh: New file. This script generates a Makefile which uses driver.sh to compile and run the tests and collect the logs into a single log file. * testsuite/experimental/simd/tests/abs.cc: New file. Tests abs(simd). * testsuite/experimental/simd/tests/algorithms.cc: New file. Tests min/max(simd, simd). * testsuite/experimental/simd/tests/bits/conversions.h: New file. Contains functions to support tests involving conversions. * testsuite/experimental/simd/tests/bits/make_vec.h: New file. Support functions make_mask and make_vec. * testsuite/experimental/simd/tests/bits/mathreference.h: New file. Support functions to supply precomputed math function reference data. * testsuite/experimental/simd/tests/bits/metahelpers.h: New file. Support code for SFINAE testing. * testsuite/experimental/simd/tests/bits/simd_view.h: New file. * testsuite/experimental/simd/tests/bits/test_values.h: New file. Test functions to easily drive a test with simd objects initialized from a given list of values and a range of random values. * testsuite/experimental/simd/tests/bits/ulp.h: New file. Support code to determine the ULP distance of simd objects. * testsuite/experimental/simd/tests/bits/verify.h: New file. Test framework for COMPARE'ing simd objects and instantiating the test templates with value_type and ABI tag. * testsuite/experimental/simd/tests/broadcast.cc: New file. Test simd broadcasts. * testsuite/experimental/simd/tests/casts.cc: New file. Test simd casts. * testsuite/experimental/simd/tests/fpclassify.cc: New file. Test floating-point classification functions. * testsuite/experimental/simd/tests/frexp.cc: New file. Test frexp(simd). * testsuite/experimental/simd/tests/generator.cc: New file. Test simd generator constructor. * testsuite/experimental/simd/tests/hypot3_fma.cc: New file. Test 3-arg hypot(simd,simd,simd) and fma(simd,simd,sim). * testsuite/experimental/simd/tests/integer_operators.cc: New file. Test integer operators. * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc: New file. Test ldexp(simd), scalbn(simd), scalbln(simd), and modf(simd). * testsuite/experimental/simd/tests/loadstore.cc: New file. Test (converting) simd loads and stores. * testsuite/experimental/simd/tests/logarithm.cc: New file. Test log*(simd). * testsuite/experimental/simd/tests/mask_broadcast.cc: New file. Test simd_mask broadcasts. * testsuite/experimental/simd/tests/mask_conversions.cc: New file. Test simd_mask conversions. * testsuite/experimental/simd/tests/mask_implicit_cvt.cc: New file. Test simd_mask implicit conversions. * testsuite/experimental/simd/tests/mask_loadstore.cc: New file. Test simd_mask loads and stores. * testsuite/experimental/simd/tests/mask_operator_cvt.cc: New file. Test simd_mask operators convert as specified. * testsuite/experimental/simd/tests/mask_operators.cc: New file. Test simd_mask compares, subscripts, and negation. * testsuite/experimental/simd/tests/mask_reductions.cc: New file. Test simd_mask reductions. * testsuite/experimental/simd/tests/math_1arg.cc: New file. Test 1-arg math functions on simd. * testsuite/experimental/simd/tests/math_2arg.cc: New file. Test 2-arg math functions on simd. * testsuite/experimental/simd/tests/operator_cvt.cc: New file. Test implicit conversions on simd binary operators behave as specified. * testsuite/experimental/simd/tests/operators.cc: New file. Test simd compares, subscripts, not, unary minus, plus, minus, multiplies, divides, increment, and decrement. * testsuite/experimental/simd/tests/reductions.cc: New file. Test reduce(simd). * testsuite/experimental/simd/tests/remqo.cc: New file. Test remqo(simd). * testsuite/experimental/simd/tests/simd.cc: New file. Basic sanity checks of simd types. * testsuite/experimental/simd/tests/sincos.cc: New file. Test sin(simd) and cos(simd). * testsuite/experimental/simd/tests/split_concat.cc: New file. Test split(simd) and concat(simd, simd). * testsuite/experimental/simd/tests/splits.cc: New file. Test split(simd_mask). * testsuite/experimental/simd/tests/trigonometric.cc: New file. Test remaining trigonometric functions on simd. * testsuite/experimental/simd/tests/trunc_ceil_floor.cc: New file. Test trunc(simd), ceil(simd), and floor(simd). * testsuite/experimental/simd/tests/where.cc: New file. Test masked operations using where.
2021-01-21 12:50:32 +01:00
#!/bin/sh
# check_simd <srcdir> <builddir> <CXXFLAGS>
# Read config from $CHECK_SIMD_CONFIG file or $target_list
scriptdir="$(cd "${0%/*}" && pwd)"
srcdir="$1"
builddir="$2"
shift 2
testdir="$builddir/testsuite"
CXX="$("$builddir/scripts/testsuite_flags" --build-cxx)"
CXXFLAGS="$("$builddir/scripts/testsuite_flags" --cxxflags) $1 -Wno-psabi"
shift
INCLUDES="$("$builddir/scripts/testsuite_flags" --build-includes)"
target_triplet=$($CXX -dumpmachine)
define_target() {
name="$1"
flags="$2"
sim="$3"
eval "$name=\"flags=\\\"$flags\\\"
sim=\\\"$sim\\\"\""
}
if [ -f "$CHECK_SIMD_CONFIG" ]; then
. "$CHECK_SIMD_CONFIG"
elif [ -z "$CHECK_SIMD_CONFIG" ]; then
if [ -z "$target_list" ]; then
target_list="unix"
case "$target_triplet" in
x86_64-*) target_list="unix/-march=native" ;;
i?86-*) target_list="unix/-march=native" ;;
powerpc64le-*) target_list="unix/-mcpu=power8" ;;
aarch64-*) target_list="unix/-mcpu=cortex-a53" ;;
arm-*) target_list="unix/-mcpu=cortex-a7" ;;
esac
fi
else
echo "Error: File not found: \$CHECK_SIMD_CONFIG='$CHECK_SIMD_CONFIG'" 1>&2
exit 1
fi
# define unix with no flags and no simulator:
define_target unix
list="$target_list"
# expand a{b,c} to a/b a/c
while [ "${list#*\{}" != "${list}" ]; do
list="$(echo "$list" | \
sed -e 's#\([^ ]\+\){\([^{},]*\),\([^{}]*\)}\(/[^ ]*\)\?#\1/\2\4 \1{\3}\4#g' \
-e 's#{\([^{},]*\)}#/\1#g' \
-e 's#/ # #g' -e 's#/$##')"
done
# per a/b/c block extract flags and simulator, then make check-simd
while [ ${#list} -gt 0 ]; do
a="${list%% *}"
if [ "$a" = "$list" ]; then
list=""
else
list="${list#${a} }"
fi
b="${a%%/*}"
eval "eval \"\$$b\""
flags="${flags}$(echo "${a#${b}}"|sed 's#/# #g')"
subdir="simd/$(echo "$flags" | sed 's#[= /-]##g')"
rm -f "${subdir}/Makefile"
$srcdir/testsuite/experimental/simd/generate_makefile.sh \
--destination="$testdir/$subdir" --sim="$sim" --testflags="$flags" \
$CXX $INCLUDES $CXXFLAGS -static-libgcc -static-libstdc++
echo "$subdir"
done