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clang-p2996/llvm/unittests/TargetParser/Host.cpp
Archibald Elliott f09cf34d00 [Support] Move TargetParsers to new component 
This is a fairly large changeset, but it can be broken into a few
pieces:
- `llvm/Support/*TargetParser*` are all moved from the LLVM Support
  component into a new LLVM Component called "TargetParser". This
  potentially enables using tablegen to maintain this information, as
  is shown in https://reviews.llvm.org/D137517. This cannot currently
  be done, as llvm-tblgen relies on LLVM's Support component.
- This also moves two files from Support which use and depend on
  information in the TargetParser:
  - `llvm/Support/Host.{h,cpp}` which contains functions for inspecting
    the current Host machine for info about it, primarily to support
    getting the host triple, but also for `-mcpu=native` support in e.g.
    Clang. This is fairly tightly intertwined with the information in
    `X86TargetParser.h`, so keeping them in the same component makes
    sense.
  - `llvm/ADT/Triple.h` and `llvm/Support/Triple.cpp`, which contains
    the target triple parser and representation. This is very intertwined
    with the Arm target parser, because the arm architecture version
    appears in canonical triples on arm platforms.
- I moved the relevant unittests to their own directory.

And so, we end up with a single component that has all the information
about the following, which to me seems like a unified component:
- Triples that LLVM Knows about
- Architecture names and CPUs that LLVM knows about
- CPU detection logic for LLVM

Given this, I have also moved `RISCVISAInfo.h` into this component, as
it seems to me to be part of that same set of functionality.

If you get link errors in your components after this patch, you likely
need to add TargetParser into LLVM_LINK_COMPONENTS in CMake.

Differential Revision: https://reviews.llvm.org/D137838
2022-12-20 11:05:50 +00:00

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//========- unittests/Support/Host.cpp - Host.cpp tests --------------========//
//
// 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/TargetParser/Host.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Config/config.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/Program.h"
#include "llvm/Support/Threading.h"
#include "llvm/TargetParser/Triple.h"
#include "gtest/gtest.h"
#define ASSERT_NO_ERROR(x) \
if (std::error_code ASSERT_NO_ERROR_ec = x) { \
SmallString<128> MessageStorage; \
raw_svector_ostream Message(MessageStorage); \
Message << #x ": did not return errc::success.\n" \
<< "error number: " << ASSERT_NO_ERROR_ec.value() << "\n" \
<< "error message: " << ASSERT_NO_ERROR_ec.message() << "\n"; \
GTEST_FATAL_FAILURE_(MessageStorage.c_str()); \
} else { \
}
using namespace llvm;
TEST(getLinuxHostCPUName, ARM) {
StringRef CortexA9ProcCpuinfo = R"(
processor : 0
model name : ARMv7 Processor rev 10 (v7l)
BogoMIPS : 1393.66
Features : half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpd32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x2
CPU part : 0xc09
CPU revision : 10
processor : 1
model name : ARMv7 Processor rev 10 (v7l)
BogoMIPS : 1393.66
Features : half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpd32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x2
CPU part : 0xc09
CPU revision : 10
Hardware : Generic OMAP4 (Flattened Device Tree)
Revision : 0000
Serial : 0000000000000000
)";
EXPECT_EQ(sys::detail::getHostCPUNameForARM(CortexA9ProcCpuinfo),
"cortex-a9");
EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x41\n"
"CPU part : 0xc0f"),
"cortex-a15");
// Verify that both CPU implementer and CPU part are checked:
EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x40\n"
"CPU part : 0xc0f"),
"generic");
EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x51\n"
"CPU part : 0x06f"),
"krait");
}
TEST(getLinuxHostCPUName, AArch64) {
EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x41\n"
"CPU part : 0xd03"),
"cortex-a53");
EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x41\n"
"CPU part : 0xd05"),
"cortex-a55");
EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x41\n"
"CPU part : 0xd40"),
"neoverse-v1");
EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x41\n"
"CPU part : 0xd0c"),
"neoverse-n1");
// Verify that both CPU implementer and CPU part are checked:
EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x40\n"
"CPU part : 0xd03"),
"generic");
EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x51\n"
"CPU part : 0x201"),
"kryo");
EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x51\n"
"CPU part : 0x800"),
"cortex-a73");
EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x51\n"
"CPU part : 0x801"),
"cortex-a73");
EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x41\n"
"CPU part : 0xd46"),
"cortex-a510");
EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x41\n"
"CPU part : 0xd47"),
"cortex-a710");
EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x41\n"
"CPU part : 0xd48"),
"cortex-x2");
EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x51\n"
"CPU part : 0xc00"),
"falkor");
EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x51\n"
"CPU part : 0xc01"),
"saphira");
EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0xc0\n"
"CPU part : 0xac3"),
"ampere1");
// MSM8992/4 weirdness
StringRef MSM8992ProcCpuInfo = R"(
Processor : AArch64 Processor rev 3 (aarch64)
processor : 0
processor : 1
processor : 2
processor : 3
processor : 4
processor : 5
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32
CPU implementer : 0x41
CPU architecture: 8
CPU variant : 0x0
CPU part : 0xd03
CPU revision : 3
Hardware : Qualcomm Technologies, Inc MSM8992
)";
EXPECT_EQ(sys::detail::getHostCPUNameForARM(MSM8992ProcCpuInfo),
"cortex-a53");
// Exynos big.LITTLE weirdness
const std::string ExynosProcCpuInfo = R"(
processor : 0
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32
CPU implementer : 0x41
CPU architecture: 8
CPU variant : 0x0
CPU part : 0xd05
processor : 1
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32
CPU implementer : 0x53
CPU architecture: 8
)";
// Verify default for Exynos.
EXPECT_EQ(sys::detail::getHostCPUNameForARM(ExynosProcCpuInfo +
"CPU variant : 0xc\n"
"CPU part : 0xafe"),
"exynos-m3");
// Verify Exynos M3.
EXPECT_EQ(sys::detail::getHostCPUNameForARM(ExynosProcCpuInfo +
"CPU variant : 0x1\n"
"CPU part : 0x002"),
"exynos-m3");
// Verify Exynos M4.
EXPECT_EQ(sys::detail::getHostCPUNameForARM(ExynosProcCpuInfo +
"CPU variant : 0x1\n"
"CPU part : 0x003"),
"exynos-m4");
const std::string ThunderX2T99ProcCpuInfo = R"(
processor : 0
BogoMIPS : 400.00
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
CPU implementer : 0x43
CPU architecture: 8
CPU variant : 0x1
CPU part : 0x0af
)";
// Verify different versions of ThunderX2T99.
EXPECT_EQ(sys::detail::getHostCPUNameForARM(ThunderX2T99ProcCpuInfo +
"CPU implementer : 0x42\n"
"CPU part : 0x516"),
"thunderx2t99");
EXPECT_EQ(sys::detail::getHostCPUNameForARM(ThunderX2T99ProcCpuInfo +
"CPU implementer : 0x42\n"
"CPU part : 0x0516"),
"thunderx2t99");
EXPECT_EQ(sys::detail::getHostCPUNameForARM(ThunderX2T99ProcCpuInfo +
"CPU implementer : 0x43\n"
"CPU part : 0x516"),
"thunderx2t99");
EXPECT_EQ(sys::detail::getHostCPUNameForARM(ThunderX2T99ProcCpuInfo +
"CPU implementer : 0x43\n"
"CPU part : 0x0516"),
"thunderx2t99");
EXPECT_EQ(sys::detail::getHostCPUNameForARM(ThunderX2T99ProcCpuInfo +
"CPU implementer : 0x42\n"
"CPU part : 0xaf"),
"thunderx2t99");
EXPECT_EQ(sys::detail::getHostCPUNameForARM(ThunderX2T99ProcCpuInfo +
"CPU implementer : 0x42\n"
"CPU part : 0x0af"),
"thunderx2t99");
EXPECT_EQ(sys::detail::getHostCPUNameForARM(ThunderX2T99ProcCpuInfo +
"CPU implementer : 0x43\n"
"CPU part : 0xaf"),
"thunderx2t99");
EXPECT_EQ(sys::detail::getHostCPUNameForARM(ThunderX2T99ProcCpuInfo +
"CPU implementer : 0x43\n"
"CPU part : 0x0af"),
"thunderx2t99");
// Verify ThunderXT88.
const std::string ThunderXT88ProcCpuInfo = R"(
processor : 0
BogoMIPS : 200.00
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32
CPU implementer : 0x43
CPU architecture: 8
CPU variant : 0x1
CPU part : 0x0a1
)";
EXPECT_EQ(sys::detail::getHostCPUNameForARM(ThunderXT88ProcCpuInfo +
"CPU implementer : 0x43\n"
"CPU part : 0x0a1"),
"thunderxt88");
EXPECT_EQ(sys::detail::getHostCPUNameForARM(ThunderXT88ProcCpuInfo +
"CPU implementer : 0x43\n"
"CPU part : 0xa1"),
"thunderxt88");
// Verify HiSilicon processors.
EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x48\n"
"CPU part : 0xd01"),
"tsv110");
// Verify A64FX.
const std::string A64FXProcCpuInfo = R"(
processor : 0
BogoMIPS : 200.00
Features : fp asimd evtstrm sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm fcma dcpop sve
CPU implementer : 0x46
CPU architecture: 8
CPU variant : 0x1
CPU part : 0x001
)";
EXPECT_EQ(sys::detail::getHostCPUNameForARM(A64FXProcCpuInfo), "a64fx");
// Verify Nvidia Carmel.
const std::string CarmelProcCpuInfo = R"(
processor : 0
model name : ARMv8 Processor rev 0 (v8l)
BogoMIPS : 62.50
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm dcpop
CPU implementer : 0x4e
CPU architecture: 8
CPU variant : 0x0
CPU part : 0x004
CPU revision : 0
)";
EXPECT_EQ(sys::detail::getHostCPUNameForARM(CarmelProcCpuInfo), "carmel");
// Snapdragon mixed implementer quirk
const std::string Snapdragon865ProcCPUInfo = R"(
processor : 0
BogoMIPS : 38.40
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm lrcpc dcpop asimddp
CPU implementer : 0x51
CPU architecture: 8
CPU variant : 0xd
CPU part : 0x805
CPU revision : 14
processor : 1
processor : 2
processor : 3
processor : 4
processor : 5
processor : 6
BogoMIPS : 38.40
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm lrcpc dcpop asimddp
CPU implementer : 0x41
CPU architecture: 8
CPU variant : 0x1
CPU part : 0xd0d
CPU revision : 0
)";
EXPECT_EQ(sys::detail::getHostCPUNameForARM(Snapdragon865ProcCPUInfo), "cortex-a77");
}
TEST(getLinuxHostCPUName, s390x) {
SmallVector<std::string> ModelIDs(
{"3931", "8561", "3906", "2964", "2827", "2817", "2097", "2064"});
SmallVector<std::string> VectorSupport({"", "vx"});
SmallVector<StringRef> ExpectedCPUs;
// Model Id: 3931
ExpectedCPUs.push_back("zEC12");
ExpectedCPUs.push_back("z16");
// Model Id: 8561
ExpectedCPUs.push_back("zEC12");
ExpectedCPUs.push_back("z15");
// Model Id: 3906
ExpectedCPUs.push_back("zEC12");
ExpectedCPUs.push_back("z14");
// Model Id: 2964
ExpectedCPUs.push_back("zEC12");
ExpectedCPUs.push_back("z13");
// Model Id: 2827
ExpectedCPUs.push_back("zEC12");
ExpectedCPUs.push_back("zEC12");
// Model Id: 2817
ExpectedCPUs.push_back("z196");
ExpectedCPUs.push_back("z196");
// Model Id: 2097
ExpectedCPUs.push_back("z10");
ExpectedCPUs.push_back("z10");
// Model Id: 2064
ExpectedCPUs.push_back("generic");
ExpectedCPUs.push_back("generic");
const std::string DummyBaseVectorInfo =
"features : esan3 zarch stfle msa ldisp eimm dfp edat etf3eh highgprs "
"te ";
const std::string DummyBaseMachineInfo =
"processor 0: version = FF, identification = 059C88, machine = ";
int CheckIndex = 0;
for (size_t I = 0; I < ModelIDs.size(); I++) {
for (size_t J = 0; J < VectorSupport.size(); J++) {
const std::string DummyCPUInfo = DummyBaseVectorInfo + VectorSupport[J] +
"\n" + DummyBaseMachineInfo +
ModelIDs[I];
EXPECT_EQ(sys::detail::getHostCPUNameForS390x(DummyCPUInfo),
ExpectedCPUs[CheckIndex++]);
}
}
}
TEST(getLinuxHostCPUName, RISCV) {
const StringRef SifiveU74MCProcCPUInfo = R"(
processor : 0
hart : 2
isa : rv64imafdc
mmu : sv39
uarch : sifive,u74-mc
)";
EXPECT_EQ(sys::detail::getHostCPUNameForRISCV(SifiveU74MCProcCPUInfo),
"sifive-u74");
EXPECT_EQ(
sys::detail::getHostCPUNameForRISCV("uarch : sifive,bullet0\n"),
"sifive-u74");
}
static bool runAndGetCommandOutput(
const char *ExePath, ArrayRef<llvm::StringRef> argv,
std::unique_ptr<char[]> &Buffer, off_t &Size) {
bool Success = false;
[ExePath, argv, &Buffer, &Size, &Success] {
using namespace llvm::sys;
SmallString<128> TestDirectory;
ASSERT_NO_ERROR(fs::createUniqueDirectory("host_test", TestDirectory));
SmallString<128> OutputFile(TestDirectory);
path::append(OutputFile, "out");
StringRef OutputPath = OutputFile.str();
const std::optional<StringRef> Redirects[] = {
/*STDIN=*/std::nullopt, /*STDOUT=*/OutputPath, /*STDERR=*/std::nullopt};
int RetCode =
ExecuteAndWait(ExePath, argv, /*env=*/std::nullopt, Redirects);
ASSERT_EQ(0, RetCode);
int FD = 0;
ASSERT_NO_ERROR(fs::openFileForRead(OutputPath, FD));
Size = ::lseek(FD, 0, SEEK_END);
ASSERT_NE(-1, Size);
::lseek(FD, 0, SEEK_SET);
Buffer = std::make_unique<char[]>(Size);
ASSERT_EQ(::read(FD, Buffer.get(), Size), Size);
::close(FD);
ASSERT_NO_ERROR(fs::remove(OutputPath));
ASSERT_NO_ERROR(fs::remove(TestDirectory.str()));
Success = true;
}();
return Success;
}
TEST(HostTest, DummyRunAndGetCommandOutputUse) {
// Suppress defined-but-not-used warnings when the tests using the helper are
// disabled.
(void)&runAndGetCommandOutput;
}
TEST(HostTest, getMacOSHostVersion) {
llvm::Triple HostTriple(llvm::sys::getProcessTriple());
if (!HostTriple.isMacOSX())
GTEST_SKIP();
const char *SwVersPath = "/usr/bin/sw_vers";
StringRef argv[] = {SwVersPath, "-productVersion"};
std::unique_ptr<char[]> Buffer;
off_t Size;
ASSERT_EQ(runAndGetCommandOutput(SwVersPath, argv, Buffer, Size), true);
StringRef SystemVersionStr = StringRef(Buffer.get(), Size).rtrim();
// Ensure that the two versions match.
VersionTuple SystemVersion;
ASSERT_EQ(llvm::Triple((Twine("x86_64-apple-macos") + SystemVersionStr))
.getMacOSXVersion(SystemVersion),
true);
VersionTuple HostVersion;
ASSERT_EQ(HostTriple.getMacOSXVersion(HostVersion), true);
if (SystemVersion.getMajor() > 10) {
// Don't compare the 'Minor' and 'Micro' versions, as they're always '0' for
// the 'Darwin' triples on 11.x.
ASSERT_EQ(SystemVersion.getMajor(), HostVersion.getMajor());
} else {
// Don't compare the 'Micro' version, as it's always '0' for the 'Darwin'
// triples.
ASSERT_EQ(SystemVersion.getMajor(), HostVersion.getMajor());
ASSERT_EQ(SystemVersion.getMinor(), HostVersion.getMinor());
}
}
// Helper to return AIX system version. Must return void to use ASSERT_*.
static void getAIXSystemVersion(VersionTuple &SystemVersion) {
const char *ExePath = "/usr/bin/oslevel";
StringRef argv[] = {ExePath};
std::unique_ptr<char[]> Buffer;
off_t Size;
ASSERT_EQ(runAndGetCommandOutput(ExePath, argv, Buffer, Size), true);
StringRef SystemVersionStr = StringRef(Buffer.get(), Size).rtrim();
SystemVersion =
llvm::Triple((Twine("powerpc-ibm-aix") + SystemVersionStr))
.getOSVersion();
}
TEST(HostTest, AIXHostVersionDetect) {
llvm::Triple HostTriple(llvm::sys::getProcessTriple());
if (HostTriple.getOS() != Triple::AIX)
GTEST_SKIP();
llvm::Triple ConfiguredHostTriple(LLVM_HOST_TRIPLE);
ASSERT_EQ(ConfiguredHostTriple.getOS(), Triple::AIX);
VersionTuple SystemVersion;
getAIXSystemVersion(SystemVersion);
// Ensure that the host triple version (major) and release (minor) numbers,
// unless explicitly configured, match with those of the current system.
auto SysMajor = SystemVersion.getMajor();
auto SysMinor = SystemVersion.getMinor();
VersionTuple HostVersion = HostTriple.getOSVersion();
if (ConfiguredHostTriple.getOSMajorVersion()) {
// Explicitly configured, force a match. We do it this way so the
// asserts are always executed.
SysMajor = HostVersion.getMajor();
SysMinor = HostVersion.getMinor();
}
ASSERT_EQ(SysMajor, HostVersion.getMajor());
ASSERT_EQ(SysMinor, HostVersion.getMinor());
}
TEST(HostTest, AIXTargetVersionDetect) {
llvm::Triple TargetTriple(llvm::sys::getDefaultTargetTriple());
if (TargetTriple.getOS() != Triple::AIX)
GTEST_SKIP();
// Ensure that the target triple version (major) and release (minor) numbers
// match with those of the current system.
llvm::Triple ConfiguredTargetTriple(LLVM_DEFAULT_TARGET_TRIPLE);
if (ConfiguredTargetTriple.getOSMajorVersion())
GTEST_SKIP(); // The version was configured explicitly; skip.
VersionTuple SystemVersion;
getAIXSystemVersion(SystemVersion);
VersionTuple TargetVersion = TargetTriple.getOSVersion();
ASSERT_EQ(SystemVersion.getMajor(), TargetVersion.getMajor());
ASSERT_EQ(SystemVersion.getMinor(), TargetVersion.getMinor());
}
TEST(HostTest, AIXHostCPUDetect) {
llvm::Triple HostTriple(llvm::sys::getProcessTriple());
if (HostTriple.getOS() != Triple::AIX)
GTEST_SKIP();
// Return a value based on the current processor implementation mode.
const char *ExePath = "/usr/sbin/getsystype";
StringRef argv[] = {ExePath, "-i"};
std::unique_ptr<char[]> Buffer;
off_t Size;
ASSERT_EQ(runAndGetCommandOutput(ExePath, argv, Buffer, Size), true);
StringRef CPU(Buffer.get(), Size);
StringRef MCPU = StringSwitch<const char *>(CPU)
.Case("POWER 4\n", "pwr4")
.Case("POWER 5\n", "pwr5")
.Case("POWER 6\n", "pwr6")
.Case("POWER 7\n", "pwr7")
.Case("POWER 8\n", "pwr8")
.Case("POWER 9\n", "pwr9")
.Case("POWER 10\n", "pwr10")
.Default("unknown");
StringRef HostCPU = sys::getHostCPUName();
// Just do the comparison on the base implementation mode.
if (HostCPU == "970")
HostCPU = StringRef("pwr4");
else
HostCPU = HostCPU.rtrim('x');
EXPECT_EQ(HostCPU, MCPU);
}
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