extern "C" void*
LLVMRustExecuteJIT(void* mem,
LLVMPassManagerRef PMR,
LLVMModuleRef M,
CodeGenOpt::Level OptLevel,
bool EnableSegmentedStacks) {
InitializeNativeTarget();
InitializeNativeTargetAsmPrinter();
InitializeNativeTargetAsmParser();
std::string Err;
TargetOptions Options;
Options.JITExceptionHandling = true;
Options.JITEmitDebugInfo = true;
Options.NoFramePointerElim = true;
Options.EnableSegmentedStacks = EnableSegmentedStacks;
PassManager *PM = unwrap<PassManager>(PMR);
RustMCJITMemoryManager* MM = (RustMCJITMemoryManager*) mem;
assert(MM);
PM->add(createBasicAliasAnalysisPass());
PM->add(createInstructionCombiningPass());
PM->add(createReassociatePass());
PM->add(createGVNPass());
PM->add(createCFGSimplificationPass());
PM->add(createFunctionInliningPass());
PM->add(createPromoteMemoryToRegisterPass());
PM->run(*unwrap(M));
ExecutionEngine* EE = EngineBuilder(unwrap(M))
.setErrorStr(&Err)
.setTargetOptions(Options)
.setJITMemoryManager(MM)
.setOptLevel(OptLevel)
.setUseMCJIT(true)
.setAllocateGVsWithCode(false)
.create();
if(!EE || Err != "") {
LLVMRustError = Err.c_str();
return 0;
}
MM->invalidateInstructionCache();
Function* func = EE->FindFunctionNamed("_rust_main");
if(!func || Err != "") {
LLVMRustError = Err.c_str();
return 0;
}
void* entry = EE->getPointerToFunction(func);
assert(entry);
return entry;
}
extern "C" bool
LLVMRustLoadCrate(void* mem, const char* crate) {
RustMCJITMemoryManager* manager = (RustMCJITMemoryManager*) mem;
std::string Err;
assert(manager);
if(!manager->loadCrate(crate, &Err)) {
LLVMRustError = Err.c_str();
return false;
}
return true;
}
extern "C" LLVMExecutionEngineRef
LLVMRustBuildJIT(void* mem,
LLVMModuleRef M,
bool EnableSegmentedStacks) {
InitializeNativeTarget();
InitializeNativeTargetAsmPrinter();
InitializeNativeTargetAsmParser();
std::string Err;
TargetOptions Options;
Options.JITEmitDebugInfo = true;
Options.NoFramePointerElim = true;
Options.EnableSegmentedStacks = EnableSegmentedStacks;
RustMCJITMemoryManager* MM = (RustMCJITMemoryManager*) mem;
assert(MM);
ExecutionEngine* EE = EngineBuilder(unwrap(M))
.setErrorStr(&Err)
.setTargetOptions(Options)
.setJITMemoryManager(MM)
.setUseMCJIT(true)
.setAllocateGVsWithCode(false)
.create();
if(!EE || Err != "") {
LLVMRustError = Err.c_str();
// The EngineBuilder only takes ownership of these two structures if the
// create() call is successful, but here it wasn't successful.
LLVMDisposeModule(M);
delete MM;
return NULL;
}
MM->invalidateInstructionCache();
return wrap(EE);
}