LLVMValueRef codegen_addfun(compile_t* c, const char* name, LLVMTypeRef type,
bool pony_abi)
{
// Add the function and set the calling convention and the linkage type.
LLVMValueRef fun = LLVMAddFunction(c->module, name, type);
LLVMSetFunctionCallConv(fun, c->callconv);
LLVMSetLinkage(fun, c->linkage);
LLVMSetUnnamedAddr(fun, true);
if(pony_abi)
{
LLVMValueRef md = LLVMMDNodeInContext(c->context, NULL, 0);
LLVMSetMetadataStr(fun, "pony.abi", md);
}
LLVMValueRef arg = LLVMGetFirstParam(fun);
uint32_t i = 1;
while(arg != NULL)
{
LLVMTypeRef type = LLVMTypeOf(arg);
if(LLVMGetTypeKind(type) == LLVMPointerTypeKind)
{
LLVMTypeRef elem = LLVMGetElementType(type);
if(LLVMGetTypeKind(elem) == LLVMStructTypeKind)
{
size_t size = (size_t)LLVMABISizeOfType(c->target_data, elem);
#if PONY_LLVM >= 309
LLVM_DECLARE_ATTRIBUTEREF(deref_attr, dereferenceable, size);
LLVMAddAttributeAtIndex(fun, i, deref_attr);
#else
LLVMSetDereferenceable(fun, i, size);
#endif
}
}
arg = LLVMGetNextParam(arg);
i++;
}
return fun;
}
LLVMValueRef gen_string(compile_t* c, ast_t* ast)
{
const char* name = ast_name(ast);
genned_string_t k;
k.string = name;
size_t index = HASHMAP_UNKNOWN;
genned_string_t* string = genned_strings_get(&c->strings, &k, &index);
if(string != NULL)
return string->global;
ast_t* type = ast_type(ast);
pony_assert(is_literal(type, "String"));
reach_type_t* t = reach_type(c->reach, type);
compile_type_t* c_t = (compile_type_t*)t->c_type;
size_t len = ast_name_len(ast);
LLVMValueRef args[4];
args[0] = c_t->desc;
args[1] = LLVMConstInt(c->intptr, len, false);
args[2] = LLVMConstInt(c->intptr, len + 1, false);
args[3] = codegen_string(c, name, len);
LLVMValueRef inst = LLVMConstNamedStruct(c_t->structure, args, 4);
LLVMValueRef g_inst = LLVMAddGlobal(c->module, c_t->structure, "");
LLVMSetInitializer(g_inst, inst);
LLVMSetGlobalConstant(g_inst, true);
LLVMSetLinkage(g_inst, LLVMPrivateLinkage);
LLVMSetUnnamedAddr(g_inst, true);
string = POOL_ALLOC(genned_string_t);
string->string = name;
string->global = g_inst;
genned_strings_putindex(&c->strings, string, index);
return g_inst;
}