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//===- PerThreadBumpPtrAllocatorTest.cpp ----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/PerThreadBumpPtrAllocator.h"
#include "llvm/Support/Parallel.h"
#include "gtest/gtest.h"
#include <cstdlib>
using namespace llvm;
using namespace parallel;
namespace {
TEST(PerThreadBumpPtrAllocatorTest, Simple) {
PerThreadBumpPtrAllocator Allocator;
parallel::TaskGroup tg;
tg.spawn([&]() {
uint64_t *Var =
(uint64_t *)Allocator.Allocate(sizeof(uint64_t), alignof(uint64_t));
*Var = 0xFE;
EXPECT_EQ(0xFEul, *Var);
EXPECT_EQ(sizeof(uint64_t), Allocator.getBytesAllocated());
EXPECT_TRUE(Allocator.getBytesAllocated() <= Allocator.getTotalMemory());
PerThreadBumpPtrAllocator Allocator2(std::move(Allocator));
EXPECT_EQ(sizeof(uint64_t), Allocator2.getBytesAllocated());
EXPECT_TRUE(Allocator2.getBytesAllocated() <= Allocator2.getTotalMemory());
EXPECT_EQ(0xFEul, *Var);
});
}
TEST(PerThreadBumpPtrAllocatorTest, ParallelAllocation) {
PerThreadBumpPtrAllocator Allocator;
static size_t constexpr NumAllocations = 1000;
parallelFor(0, NumAllocations, [&](size_t Idx) {
uint64_t *ptr =
(uint64_t *)Allocator.Allocate(sizeof(uint64_t), alignof(uint64_t));
*ptr = Idx;
});
EXPECT_EQ(sizeof(uint64_t) * NumAllocations, Allocator.getBytesAllocated());
EXPECT_EQ(Allocator.getNumberOfAllocators(), parallel::getThreadCount());
}
} // anonymous namespace
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