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Add test macros for always_inline and noinline

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@344167 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Fiselier 2018-10-10 18:22:23 +00:00
parent 9c34c77263
commit 697faed467
3 changed files with 23 additions and 10 deletions
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4
benchmarks/stringstream.bench.cpp
View File

@ -1,7 +1,9 @@
#include "benchmark/benchmark.h"
#include "test_macros.h"
#include <sstream>
double __attribute__((noinline)) istream_numbers();
TEST_NOINLINE double istream_numbers();
double istream_numbers() {
const char *a[] = {

19
benchmarks/unordered_set_operations.bench.cpp
View File

@ -9,25 +9,26 @@
#include "ContainerBenchmarks.hpp"
#include "GenerateInput.hpp"
#include "test_macros.h"
using namespace ContainerBenchmarks;
constexpr std::size_t TestNumInputs = 1024;
template <class _Size>
inline __attribute__((__always_inline__))
inline TEST_ALWAYS_INLINE
_Size loadword(const void* __p) {
_Size __r;
std::memcpy(&__r, __p, sizeof(__r));
return __r;
}
inline __attribute__((__always_inline__))
inline TEST_ALWAYS_INLINE
std::size_t rotate_by_at_least_1(std::size_t __val, int __shift) {
return (__val >> __shift) | (__val << (64 - __shift));
}
inline __attribute__((__always_inline__))
inline TEST_ALWAYS_INLINE
std::size_t hash_len_16(std::size_t __u, std::size_t __v) {
const std::size_t __mul = 0x9ddfea08eb382d69ULL;
std::size_t __a = (__u ^ __v) * __mul;
@ -40,7 +41,7 @@ std::size_t hash_len_16(std::size_t __u, std::size_t __v) {
template <std::size_t _Len>
inline __attribute__((__always_inline__))
inline TEST_ALWAYS_INLINE
std::size_t hash_len_0_to_8(const char* __s) {
static_assert(_Len == 4 || _Len == 8, "");
const uint64_t __a = loadword<uint32_t>(__s);
@ -50,7 +51,7 @@ std::size_t hash_len_0_to_8(const char* __s) {
struct UInt32Hash {
UInt32Hash() = default;
inline __attribute__((__always_inline__))
inline TEST_ALWAYS_INLINE
std::size_t operator()(uint32_t data) const {
return hash_len_0_to_8<4>(reinterpret_cast<const char*>(&data));
}
@ -58,7 +59,7 @@ struct UInt32Hash {
struct UInt64Hash {
UInt64Hash() = default;
inline __attribute__((__always_inline__))
inline TEST_ALWAYS_INLINE
std::size_t operator()(uint64_t data) const {
return hash_len_0_to_8<8>(reinterpret_cast<const char*>(&data));
}
@ -66,7 +67,7 @@ struct UInt64Hash {
struct UInt128Hash {
UInt128Hash() = default;
inline __attribute__((__always_inline__))
inline TEST_ALWAYS_INLINE
std::size_t operator()(__uint128_t data) const {
const __uint128_t __mask = static_cast<std::size_t>(-1);
const std::size_t __a = (std::size_t)(data & __mask);
@ -77,7 +78,7 @@ struct UInt128Hash {
struct UInt32Hash2 {
UInt32Hash2() = default;
inline __attribute__((__always_inline__))
inline TEST_ALWAYS_INLINE
std::size_t operator()(uint32_t data) const {
const uint32_t __m = 0x5bd1e995;
const uint32_t __r = 24;
@ -97,7 +98,7 @@ struct UInt32Hash2 {
struct UInt64Hash2 {
UInt64Hash2() = default;
inline __attribute__((__always_inline__))
inline TEST_ALWAYS_INLINE
std::size_t operator()(uint64_t data) const {
return hash_len_0_to_8<8>(reinterpret_cast<const char*>(&data));
}

10
test/support/test_macros.h
View File

@ -281,6 +281,16 @@ inline void DoNotOptimize(Tp const& value) {
}
#endif
#if defined(__GNUC__)
#define TEST_ALWAYS_INLINE __attribute__((always_inline))
#define TEST_NOINLINE __attribute__((noinline))
#elif defined(_MSC_VER)
#define TEST_ALWAYS_INLINE __forceinline
#define TEST_NOINLINE __declspec(noinline)
#else
#define TEST_ALWAYS_INLINE
#define TEST_NOINLINE
#endif
#if defined(__GNUC__)
#pragma GCC diagnostic pop