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51e91b64d0
This patch implements __cxa_init_primary_exception, an extension to the Itanium C++ ABI. This extension is already present in both libsupc++ and libcxxrt. This patch also starts making use of this function in std::make_exception_ptr: instead of going through a full throw/catch cycle, we are now able to initialize an exception directly, thus making std::make_exception_ptr around 30x faster.
20 lines
641 B
C++
20 lines
641 B
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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#include <benchmark/benchmark.h>
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#include <exception>
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void bm_make_exception_ptr(benchmark::State& state) {
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for (auto _ : state) {
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benchmark::DoNotOptimize(std::make_exception_ptr(42));
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}
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}
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BENCHMARK(bm_make_exception_ptr)->ThreadRange(1, 8);
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BENCHMARK_MAIN();
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