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benchtests: Add UNSUPPORTED benchmark status 

The libmvec benchmarks print a message indicating that a certain CPU
feature is unsupported and exit prematurelyi, which breaks the JSON in
bench.out.

Handle this more elegantly in the bench makefile target by adding
support for an UNSUPPORTED exit status (77) so that bench.out continues
to have output for valid tests.

Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
This commit is contained in:
Siddhesh Poyarekar 2022-04-29 11:06:00 +05:30
parent 118a2aee07
commit 944afe6d95
2 changed files with 24 additions and 11 deletions
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23
benchtests/Makefile
View File

@ -1,4 +1,5 @@
# Copyright (C) 2013-2022 Free Software Foundation, Inc.
# Copyright The GNU Toolchain Authors.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
@ -417,11 +418,23 @@ bench-func: $(binaries-bench)
echo "{\"timing_type\": \"$${timing_type}\","; \
echo " \"functions\": {"; \
for run in $^; do \
if ! [ "x$${run}" = "x$<" ]; then \
echo ","; \
fi; \
echo "Running $${run}" >&2; \
$(run-bench) $(DETAILED_OPT); \
op=$$($(run-bench) $(DETAILED_OPT)); \
ret=$$?; \
case "$${ret}" in \
77) \
echo "UNSUPPORTED $${run}: $${op}" >&2; \
;; \
0) \
echo "Running $${run}" >&2; \
if [ "$${run}" != "$<" ]; then \
echo ","; \
fi; \
echo "$${op}"; \
;; \
*) \
echo "FAILED $${run}" >&2; \
;; \
esac; \
done; \
echo; \
echo " }"; \

12
sysdeps/x86_64/fpu/bench-libmvec-skeleton.c
View File

@ -40,20 +40,20 @@ main (int argc, char **argv)
#if defined REQUIRE_AVX
if (!CPU_FEATURE_ACTIVE (AVX))
{
printf ("AVX not supported.\n");
return 0;
printf ("AVX not supported.");
return 77;
}
#elif defined REQUIRE_AVX2
if (!CPU_FEATURE_ACTIVE (AVX2))
{
printf ("AVX2 not supported.\n");
return 0;
printf ("AVX2 not supported.");
return 77;
}
#elif defined REQUIRE_AVX512F
if (!CPU_FEATURE_ACTIVE (AVX512F))
{
printf ("AVX512F not supported.\n");
return 0;
printf ("AVX512F not supported.");
return 77;
}
#endif