#include "config_llvm.h"
#if HAVE(LLVM)
#include "LLVMAPI.h"
#include "LLVMTrapCallback.h"
#define __STDC_LIMIT_MACROS
#define __STDC_CONSTANT_MACROS
#if COMPILER(CLANG)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wmissing-noreturn"
#pragma clang diagnostic ignored "-Wunused-parameter"
#endif // COMPILER(CLANG)
#include <llvm/Support/CommandLine.h>
#if COMPILER(CLANG)
#pragma clang diagnostic pop
#endif // COMPILER(CLANG)
#undef __STDC_LIMIT_MACROS
#undef __STDC_CONSTANT_MACROS
static void llvmCrash(const char*) NO_RETURN;
extern "C" WTF_EXPORT_PRIVATE JSC::LLVMAPI* initializeAndGetJSCLLVMAPI(
void (*)(const char*, ...) NO_RETURN, bool* enableFastISel);
static void llvmCrash(const char* reason)
{
g_llvmTrapCallback("LLVM fatal error: %s", reason);
}
template<typename... Args>
void initCommandLine(Args... args)
{
const char* theArgs[] = { args... };
llvm::cl::ParseCommandLineOptions(sizeof(theArgs) / sizeof(const char*), theArgs);
}
extern "C" JSC::LLVMAPI* initializeAndGetJSCLLVMAPI(
void (*callback)(const char*, ...) NO_RETURN,
bool* enableFastISel)
{
g_llvmTrapCallback = callback;
LLVMInstallFatalErrorHandler(llvmCrash);
if (!LLVMStartMultithreaded())
callback("Could not start LLVM multithreading");
LLVMLinkInMCJIT();
#if CPU(X86_64)
LLVMInitializeX86TargetInfo();
LLVMInitializeX86Target();
LLVMInitializeX86TargetMC();
LLVMInitializeX86AsmPrinter();
LLVMInitializeX86Disassembler();
#elif CPU(ARM64)
#if (__IPHONE_OS_VERSION_MIN_REQUIRED > 80200) || OS(LINUX)
LLVMInitializeAArch64TargetInfo();
LLVMInitializeAArch64Target();
LLVMInitializeAArch64TargetMC();
LLVMInitializeAArch64AsmPrinter();
LLVMInitializeAArch64Disassembler();
#else
LLVMInitializeARM64TargetInfo();
LLVMInitializeARM64Target();
LLVMInitializeARM64TargetMC();
LLVMInitializeARM64AsmPrinter();
LLVMInitializeARM64Disassembler();
#endif
#else
UNREACHABLE_FOR_PLATFORM();
#endif
#if LLVM_VERSION_MAJOR >= 4 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR >= 6)
#else
*enableFastISel = false;
#endif
if (*enableFastISel)
initCommandLine("llvmForJSC.dylib", "-enable-misched=false", "-regalloc=basic");
else
initCommandLine("llvmForJSC.dylib", "-enable-patchpoint-liveness=true");
JSC::LLVMAPI* result = new JSC::LLVMAPI;
memset(result, 0, sizeof(*result));
#define LLVM_API_FUNCTION_ASSIGNMENT(returnType, name, signature) \
result->name = LLVM##name;
FOR_EACH_LLVM_API_FUNCTION(LLVM_API_FUNCTION_ASSIGNMENT);
#undef LLVM_API_FUNCTION_ASSIGNMENT
#if LLVM_VERSION_MAJOR >= 4 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR >= 6)
result->AddLowerSwitchPass = LLVMAddLowerSwitchPass;
#endif
return result;
}
#else
extern "C" WTF_EXPORT_PRIVATE void initializeAndGetJSCLLVMAPI();
extern "C" void initializeAndGetJSCLLVMAPI() { }
#endif // HAVE(LLVM)