fa1c077b41
This patch removes the ability to build the runtimes in the 32 bit multilib configuration, i.e. using -m32. Instead of doing this, one should cross-compile the runtimes for the appropriate target triple, like we do for all other triples. As it stands, -m32 has several issues, which all seem to be related to the fact that it's not well supported by the operating systems that libc++ support. The simplest path towards fixing this is to remove support for the configuration, which is also the best course of action if there is little interest for keeping that configuration. If there is a desire to keep this configuration around, we'll need to do some work to figure out the underlying issues and fix them. Differential Revision: https://reviews.llvm.org/D114473
123 lines
2.7 KiB
C++
123 lines
2.7 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// UNSUPPORTED: libcpp-has-no-threads
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// ALLOW_RETRIES: 2
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// <condition_variable>
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// class condition_variable_any;
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// template <class Lock, class Duration, class Predicate>
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// bool
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// wait_until(Lock& lock,
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// const chrono::time_point<Clock, Duration>& abs_time,
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// Predicate pred);
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#include <condition_variable>
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#include <mutex>
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#include <thread>
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#include <chrono>
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#include <cassert>
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#include "make_test_thread.h"
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#include "test_macros.h"
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struct Clock
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{
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typedef std::chrono::milliseconds duration;
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typedef duration::rep rep;
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typedef duration::period period;
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typedef std::chrono::time_point<Clock> time_point;
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static const bool is_steady = true;
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static time_point now()
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{
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using namespace std::chrono;
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return time_point(duration_cast<duration>(
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steady_clock::now().time_since_epoch()
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));
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}
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};
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class Pred
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{
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int& i_;
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public:
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explicit Pred(int& i) : i_(i) {}
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bool operator()() {return i_ != 0;}
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};
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std::condition_variable_any cv;
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typedef std::timed_mutex L0;
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typedef std::unique_lock<L0> L1;
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L0 m0;
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int test1 = 0;
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int test2 = 0;
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int runs = 0;
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void f()
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{
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L1 lk(m0);
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assert(test2 == 0);
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test1 = 1;
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cv.notify_one();
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Clock::time_point t0 = Clock::now();
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Clock::time_point t = t0 + Clock::duration(250);
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bool r = cv.wait_until(lk, t, Pred(test2));
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Clock::time_point t1 = Clock::now();
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if (runs == 0)
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{
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assert(t1 - t0 < Clock::duration(250));
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assert(test2 != 0);
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assert(r);
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}
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else
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{
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assert(t1 - t0 - Clock::duration(250) < Clock::duration(50));
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assert(test2 == 0);
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assert(!r);
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}
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++runs;
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}
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int main(int, char**)
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{
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{
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L1 lk(m0);
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std::thread t = support::make_test_thread(f);
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assert(test1 == 0);
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while (test1 == 0)
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cv.wait(lk);
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assert(test1 != 0);
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test2 = 1;
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lk.unlock();
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cv.notify_one();
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t.join();
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}
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test1 = 0;
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test2 = 0;
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{
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L1 lk(m0);
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std::thread t = support::make_test_thread(f);
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assert(test1 == 0);
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while (test1 == 0)
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cv.wait(lk);
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assert(test1 != 0);
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lk.unlock();
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t.join();
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}
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return 0;
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}
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