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//===- MCJITTestBase.h - Common base class for MCJIT Unit 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
//
//===----------------------------------------------------------------------===//
//
// This class implements functionality shared by both MCJIT C API tests, and
// the C++ API tests.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_UNITTESTS_EXECUTIONENGINE_MCJIT_MCJITTESTAPICOMMON_H
#define LLVM_UNITTESTS_EXECUTIONENGINE_MCJIT_MCJITTESTAPICOMMON_H
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Triple.h"
#include "llvm/IR/LegacyPassManager.h"
#include "llvm/InitializePasses.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/PassRegistry.h"
#include "llvm/Support/Host.h"
#include "llvm/Support/TargetSelect.h"
// Used to skip tests on unsupported architectures and operating systems.
// To skip a test, add this macro at the top of a test-case in a suite that
// inherits from MCJITTestBase. See MCJITTest.cpp for examples.
#define SKIP_UNSUPPORTED_PLATFORM \
do \
if (!ArchSupportsMCJIT() || !OSSupportsMCJIT() || !HostCanBeTargeted()) \
return; \
while(0)
namespace llvm {
class MCJITTestAPICommon {
protected:
MCJITTestAPICommon()
: HostTriple(sys::getProcessTriple())
{
InitializeNativeTarget();
InitializeNativeTargetAsmPrinter();
// FIXME: It isn't at all clear why this is necesasry, but without it we
// fail to initialize the AssumptionCacheTracker.
initializeAssumptionCacheTrackerPass(*PassRegistry::getPassRegistry());
#ifdef _WIN32
// On Windows, generate ELF objects by specifying "-elf" in triple
HostTriple += "-elf";
#endif // _WIN32
HostTriple = Triple::normalize(HostTriple);
}
bool HostCanBeTargeted() {
std::string Error;
return TargetRegistry::lookupTarget(HostTriple, Error) != nullptr;
}
/// Returns true if the host architecture is known to support MCJIT
bool ArchSupportsMCJIT() {
Triple Host(HostTriple);
// If ARCH is not supported, bail
if (!is_contained(SupportedArchs, Host.getArch()))
return false;
// If ARCH is supported and has no specific sub-arch support
if (!is_contained(HasSubArchs, Host.getArch()))
return true;
// If ARCH has sub-arch support, find it
SmallVectorImpl<std::string>::const_iterator I = SupportedSubArchs.begin();
for(; I != SupportedSubArchs.end(); ++I)
if (Host.getArchName().startswith(*I))
return true;
return false;
}
/// Returns true if the host OS is known to support MCJIT
bool OSSupportsMCJIT() {
Triple Host(HostTriple);
if (find(UnsupportedEnvironments, Host.getEnvironment()) !=
UnsupportedEnvironments.end())
return false;
if (!is_contained(UnsupportedOSs, Host.getOS()))
return true;
return false;
}
std::string HostTriple;
SmallVector<Triple::ArchType, 4> SupportedArchs;
SmallVector<Triple::ArchType, 1> HasSubArchs;
SmallVector<std::string, 2> SupportedSubArchs; // We need to own the memory
SmallVector<Triple::OSType, 4> UnsupportedOSs;
SmallVector<Triple::EnvironmentType, 1> UnsupportedEnvironments;
};
} // namespace llvm
#endif
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