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# Copyright (C) 2013 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
# The GNU C Library 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
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library; if not, see
# <http://www.gnu.org/licenses/>.
# Makefile for benchmark tests. The only useful target here is `bench`.
# Adding a new function `foo`:
# ---------------------------
# - Append the function name to the bench variable
# - Define foo-ITER with the number of iterations you want to run. Keep it
# high enough that the overhead of clock_gettime is only a small fraction of
# the total run time of the test.
# - Define foo-ARGLIST as a colon separated list of types of the input
# arguments. Use `void` if function does not take any inputs. Put in quotes
# if the input argument is a pointer, e.g.:
# malloc-ARGLIST: "void *"
# - Define foo-RET as the type the function returns. Skip if the function
# returns void. One could even skip foo-ARGLIST if the function does not
# take any inputs AND the function returns void.
# - Make a file called `foo-inputs` with one input value per line, an input
# being a comma separated list of arguments to be passed into the function.
# See pow-inputs for an example.
subdir := benchtests
bench := exp pow
exp-ITER = 100000
exp-ARGLIST = double
exp-RET = double
LDFLAGS-bench-exp = -lm
pow-ITER = 100000
pow-ARGLIST = double:double
pow-RET = double
LDFLAGS-bench-pow = -lm
include ../Makeconfig
include ../Rules
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