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require 'rbconfig'
module JITSupport
JIT_TIMEOUT = 600 # 10min for each...
JIT_SUCCESS_PREFIX = 'JIT success \(\d+\.\dms\)'
UNSUPPORTED_COMPILERS = [
'icc',
]
module_function
# Run Ruby script with --jit-wait (Synchronous JIT compilation).
# Returns [stdout, stderr]
def eval_with_jit(env = nil, script, **opts)
stdout, stderr = nil, nil
# retry 3 times while cc1 error happens.
3.times do |i|
stdout, stderr, status = eval_with_jit_without_retry(env, script, **opts)
assert_equal(true, status.success?, "Failed to run script with JIT:\n#{code_block(script)}\nstdout:\n#{code_block(stdout)}\nstderr:\n#{code_block(stderr)}")
break unless retried_stderr?(stderr)
end
[stdout, stderr]
end
def eval_with_jit_without_retry(env = nil, script, verbose: 0, min_calls: 5, save_temps: false, max_cache: 1000, wait: true, timeout: JIT_TIMEOUT)
args = [
'--disable-gems', "--jit-verbose=#{verbose}",
"--jit-min-calls=#{min_calls}", "--jit-max-cache=#{max_cache}",
]
args << '--jit-wait' if wait
args << '--jit-save-temps' if save_temps
args << '-e' << script
base_env = { 'MJIT_SEARCH_BUILD_DIR' => 'true' } # workaround to skip requiring `make install` for `make test-all`
if preloadenv = RbConfig::CONFIG['PRELOADENV'] and !preloadenv.empty?
so = "mjit_build_dir.#{RbConfig::CONFIG['SOEXT']}"
base_env[preloadenv] = File.realpath(so) rescue nil
end
args.unshift(env ? base_env.merge!(env) : base_env)
EnvUtil.invoke_ruby(args,
'', true, true, timeout: timeout,
)
end
def supported?
return @supported if defined?(@supported)
@supported = !UNSUPPORTED_COMPILERS.include?(RbConfig::CONFIG['CC'])
end
def remove_mjit_logs(stderr)
if RubyVM::MJIT.enabled? # utility for -DFORCE_MJIT_ENABLE
stderr.gsub(/^MJIT warning: Skipped to compile unsupported instruction: \w+\n/m, '')
else
stderr
end
end
def code_block(code)
"```\n#{code}\n```\n\n"
end
# We're retrying cc1 not found error on gcc, which should be solved in the future but ignored for now.
def retried_stderr?(stderr)
RbConfig::CONFIG['CC'].start_with?('gcc') &&
stderr.include?("error trying to exec 'cc1': execvp: No such file or directory")
end
end
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