2015-11-25 04:00:38 +08:00
|
|
|
/*
|
|
|
|
* Copyright (c) 2015 Andrew Kelley
|
|
|
|
*
|
|
|
|
* This file is part of zig, which is MIT licensed.
|
|
|
|
* See http://opensource.org/licenses/MIT
|
|
|
|
*/
|
|
|
|
|
2015-11-24 13:47:25 +08:00
|
|
|
#include "codegen.hpp"
|
|
|
|
#include "hash_map.hpp"
|
2015-11-25 04:00:38 +08:00
|
|
|
#include "zig_llvm.hpp"
|
2015-11-24 13:47:25 +08:00
|
|
|
|
|
|
|
#include <stdio.h>
|
|
|
|
|
2015-11-24 17:43:45 +08:00
|
|
|
struct FnTableEntry {
|
|
|
|
LLVMValueRef fn_value;
|
|
|
|
AstNode *proto_node;
|
|
|
|
};
|
|
|
|
|
2015-11-24 13:47:25 +08:00
|
|
|
struct CodeGen {
|
2015-11-24 17:43:45 +08:00
|
|
|
LLVMModuleRef mod;
|
2015-11-24 13:47:25 +08:00
|
|
|
AstNode *root;
|
2015-11-24 17:43:45 +08:00
|
|
|
HashMap<Buf *, AstNode *, buf_hash, buf_eql_buf> fn_defs;
|
2015-11-24 13:47:25 +08:00
|
|
|
ZigList<ErrorMsg> errors;
|
2015-11-24 15:35:23 +08:00
|
|
|
LLVMBuilderRef builder;
|
2015-11-24 17:43:45 +08:00
|
|
|
HashMap<Buf *, FnTableEntry *, buf_hash, buf_eql_buf> fn_table;
|
|
|
|
HashMap<Buf *, LLVMValueRef, buf_hash, buf_eql_buf> str_table;
|
2015-11-24 15:35:23 +08:00
|
|
|
};
|
|
|
|
|
2015-11-25 04:37:14 +08:00
|
|
|
struct TypeNode {
|
|
|
|
LLVMTypeRef type_ref;
|
|
|
|
bool is_unreachable;
|
|
|
|
};
|
|
|
|
|
2015-11-24 15:35:23 +08:00
|
|
|
struct CodeGenNode {
|
|
|
|
union {
|
2015-11-25 04:37:14 +08:00
|
|
|
TypeNode type_node; // for NodeTypeType
|
2015-11-24 15:35:23 +08:00
|
|
|
} data;
|
2015-11-24 13:47:25 +08:00
|
|
|
};
|
|
|
|
|
|
|
|
CodeGen *create_codegen(AstNode *root) {
|
|
|
|
CodeGen *g = allocate<CodeGen>(1);
|
|
|
|
g->root = root;
|
2015-11-24 17:43:45 +08:00
|
|
|
g->fn_defs.init(32);
|
|
|
|
g->fn_table.init(32);
|
|
|
|
g->str_table.init(32);
|
2015-11-24 13:47:25 +08:00
|
|
|
return g;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void add_node_error(CodeGen *g, AstNode *node, Buf *msg) {
|
|
|
|
g->errors.add_one();
|
|
|
|
ErrorMsg *last_msg = &g->errors.last();
|
|
|
|
last_msg->line_start = node->line;
|
|
|
|
last_msg->column_start = node->column;
|
|
|
|
last_msg->line_end = -1;
|
|
|
|
last_msg->column_end = -1;
|
|
|
|
last_msg->msg = msg;
|
|
|
|
}
|
|
|
|
|
2015-11-24 17:43:45 +08:00
|
|
|
static LLVMTypeRef to_llvm_type(AstNode *type_node) {
|
|
|
|
assert(type_node->type == NodeTypeType);
|
|
|
|
assert(type_node->codegen_node);
|
2015-11-25 04:37:14 +08:00
|
|
|
assert(type_node->codegen_node->data.type_node.type_ref);
|
2015-11-24 17:43:45 +08:00
|
|
|
|
2015-11-25 04:37:14 +08:00
|
|
|
return type_node->codegen_node->data.type_node.type_ref;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static bool type_is_unreachable(AstNode *type_node) {
|
|
|
|
assert(type_node->type == NodeTypeType);
|
|
|
|
return type_node->data.type.type == AstNodeTypeTypePrimitive &&
|
|
|
|
buf_eql_str(&type_node->data.type.primitive_name, "unreachable");
|
2015-11-24 17:43:45 +08:00
|
|
|
}
|
|
|
|
|
2015-11-24 13:47:25 +08:00
|
|
|
static void analyze_node(CodeGen *g, AstNode *node) {
|
|
|
|
switch (node->type) {
|
|
|
|
case NodeTypeRoot:
|
2015-11-24 17:43:45 +08:00
|
|
|
for (int i = 0; i < node->data.root.top_level_decls.length; i += 1) {
|
|
|
|
AstNode *child = node->data.root.top_level_decls.at(i);
|
2015-11-24 13:47:25 +08:00
|
|
|
analyze_node(g, child);
|
|
|
|
}
|
|
|
|
break;
|
2015-11-24 17:43:45 +08:00
|
|
|
case NodeTypeExternBlock:
|
|
|
|
for (int fn_decl_i = 0; fn_decl_i < node->data.extern_block.fn_decls.length; fn_decl_i += 1) {
|
|
|
|
AstNode *fn_decl = node->data.extern_block.fn_decls.at(fn_decl_i);
|
|
|
|
analyze_node(g, fn_decl);
|
|
|
|
|
|
|
|
AstNode *fn_proto = fn_decl->data.fn_decl.fn_proto;
|
|
|
|
Buf *name = &fn_proto->data.fn_proto.name;
|
|
|
|
ZigList<AstNode *> *params = &fn_proto->data.fn_proto.params;
|
|
|
|
|
|
|
|
LLVMTypeRef *fn_param_values = allocate<LLVMTypeRef>(params->length);
|
|
|
|
for (int param_i = 0; param_i < params->length; param_i += 1) {
|
|
|
|
AstNode *param_node = params->at(param_i);
|
|
|
|
assert(param_node->type == NodeTypeParamDecl);
|
|
|
|
AstNode *param_type = param_node->data.param_decl.type;
|
|
|
|
fn_param_values[param_i] = to_llvm_type(param_type);
|
|
|
|
}
|
2015-11-25 04:37:14 +08:00
|
|
|
AstNode *return_type_node = fn_proto->data.fn_proto.return_type;
|
|
|
|
LLVMTypeRef return_type = to_llvm_type(return_type_node);
|
2015-11-24 17:43:45 +08:00
|
|
|
|
|
|
|
LLVMTypeRef fn_type = LLVMFunctionType(return_type, fn_param_values, params->length, 0);
|
|
|
|
LLVMValueRef fn_val = LLVMAddFunction(g->mod, buf_ptr(name), fn_type);
|
|
|
|
LLVMSetLinkage(fn_val, LLVMExternalLinkage);
|
|
|
|
LLVMSetFunctionCallConv(fn_val, LLVMCCallConv);
|
|
|
|
|
2015-11-25 04:37:14 +08:00
|
|
|
if (type_is_unreachable(return_type_node)) {
|
|
|
|
LLVMAddFunctionAttr(fn_val, LLVMNoReturnAttribute);
|
|
|
|
}
|
|
|
|
|
2015-11-24 17:43:45 +08:00
|
|
|
FnTableEntry *fn_table_entry = allocate<FnTableEntry>(1);
|
|
|
|
fn_table_entry->fn_value = fn_val;
|
|
|
|
fn_table_entry->proto_node = fn_proto;
|
|
|
|
g->fn_table.put(name, fn_table_entry);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case NodeTypeFnDef:
|
2015-11-24 13:47:25 +08:00
|
|
|
{
|
2015-11-24 17:43:45 +08:00
|
|
|
AstNode *proto_node = node->data.fn_def.fn_proto;
|
|
|
|
assert(proto_node->type = NodeTypeFnProto);
|
|
|
|
Buf *proto_name = &proto_node->data.fn_proto.name;
|
|
|
|
auto entry = g->fn_defs.maybe_get(proto_name);
|
2015-11-24 13:47:25 +08:00
|
|
|
if (entry) {
|
|
|
|
add_node_error(g, node,
|
2015-11-24 17:43:45 +08:00
|
|
|
buf_sprintf("redefinition of '%s'", buf_ptr(proto_name)));
|
2015-11-24 13:47:25 +08:00
|
|
|
} else {
|
2015-11-24 17:43:45 +08:00
|
|
|
g->fn_defs.put(proto_name, node);
|
|
|
|
analyze_node(g, proto_node);
|
2015-11-24 13:47:25 +08:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
2015-11-24 17:43:45 +08:00
|
|
|
case NodeTypeFnDecl:
|
|
|
|
{
|
|
|
|
AstNode *proto_node = node->data.fn_decl.fn_proto;
|
|
|
|
assert(proto_node->type == NodeTypeFnProto);
|
|
|
|
analyze_node(g, proto_node);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
case NodeTypeFnProto:
|
|
|
|
{
|
|
|
|
for (int i = 0; i < node->data.fn_proto.params.length; i += 1) {
|
|
|
|
AstNode *child = node->data.fn_proto.params.at(i);
|
|
|
|
analyze_node(g, child);
|
|
|
|
}
|
|
|
|
analyze_node(g, node->data.fn_proto.return_type);
|
|
|
|
break;
|
|
|
|
}
|
2015-11-24 13:47:25 +08:00
|
|
|
case NodeTypeParamDecl:
|
|
|
|
analyze_node(g, node->data.param_decl.type);
|
|
|
|
break;
|
|
|
|
case NodeTypeType:
|
2015-11-25 04:37:14 +08:00
|
|
|
{
|
|
|
|
node->codegen_node = allocate<CodeGenNode>(1);
|
|
|
|
TypeNode *type_node = &node->codegen_node->data.type_node;
|
|
|
|
switch (node->data.type.type) {
|
|
|
|
case AstNodeTypeTypePrimitive:
|
|
|
|
{
|
|
|
|
Buf *name = &node->data.type.primitive_name;
|
|
|
|
if (buf_eql_str(name, "u8")) {
|
|
|
|
type_node->type_ref = LLVMInt8Type();
|
|
|
|
} else if (buf_eql_str(name, "i32")) {
|
|
|
|
type_node->type_ref = LLVMInt32Type();
|
|
|
|
} else if (buf_eql_str(name, "void")) {
|
|
|
|
type_node->type_ref = LLVMVoidType();
|
|
|
|
} else if (buf_eql_str(name, "unreachable")) {
|
|
|
|
type_node->type_ref = LLVMVoidType();
|
|
|
|
type_node->is_unreachable = true;
|
|
|
|
} else {
|
|
|
|
add_node_error(g, node,
|
|
|
|
buf_sprintf("invalid type name: '%s'", buf_ptr(name)));
|
|
|
|
type_node->type_ref = LLVMVoidType();
|
|
|
|
}
|
|
|
|
break;
|
2015-11-24 15:35:23 +08:00
|
|
|
}
|
2015-11-25 04:37:14 +08:00
|
|
|
case AstNodeTypeTypePointer:
|
|
|
|
{
|
|
|
|
analyze_node(g, node->data.type.child_type);
|
|
|
|
TypeNode *child_type_node = &node->data.type.child_type->codegen_node->data.type_node;
|
|
|
|
if (child_type_node->is_unreachable) {
|
|
|
|
add_node_error(g, node,
|
|
|
|
buf_create_from_str("pointer to unreachable not allowed"));
|
|
|
|
}
|
|
|
|
type_node->type_ref = LLVMPointerType(child_type_node->type_ref, 0);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
2015-11-24 15:35:23 +08:00
|
|
|
}
|
2015-11-24 13:47:25 +08:00
|
|
|
case NodeTypeBlock:
|
2015-11-24 15:35:23 +08:00
|
|
|
for (int i = 0; i < node->data.block.statements.length; i += 1) {
|
|
|
|
AstNode *child = node->data.block.statements.at(i);
|
|
|
|
analyze_node(g, child);
|
|
|
|
}
|
2015-11-24 13:47:25 +08:00
|
|
|
break;
|
|
|
|
case NodeTypeStatement:
|
2015-11-24 15:35:23 +08:00
|
|
|
switch (node->data.statement.type) {
|
|
|
|
case AstNodeStatementTypeExpression:
|
|
|
|
analyze_node(g, node->data.statement.data.expr.expression);
|
|
|
|
break;
|
|
|
|
case AstNodeStatementTypeReturn:
|
|
|
|
analyze_node(g, node->data.statement.data.retrn.expression);
|
|
|
|
break;
|
|
|
|
}
|
2015-11-24 13:47:25 +08:00
|
|
|
break;
|
|
|
|
case NodeTypeExpression:
|
2015-11-24 15:35:23 +08:00
|
|
|
switch (node->data.expression.type) {
|
|
|
|
case AstNodeExpressionTypeNumber:
|
|
|
|
break;
|
|
|
|
case AstNodeExpressionTypeString:
|
|
|
|
break;
|
|
|
|
case AstNodeExpressionTypeFnCall:
|
|
|
|
analyze_node(g, node->data.expression.data.fn_call);
|
|
|
|
break;
|
2015-11-25 04:37:14 +08:00
|
|
|
case AstNodeExpressionTypeUnreachable:
|
|
|
|
break;
|
2015-11-24 15:35:23 +08:00
|
|
|
}
|
2015-11-24 13:47:25 +08:00
|
|
|
break;
|
|
|
|
case NodeTypeFnCall:
|
2015-11-24 15:35:23 +08:00
|
|
|
for (int i = 0; i < node->data.fn_call.params.length; i += 1) {
|
|
|
|
AstNode *child = node->data.fn_call.params.at(i);
|
|
|
|
analyze_node(g, child);
|
|
|
|
}
|
2015-11-24 13:47:25 +08:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-11-24 15:35:23 +08:00
|
|
|
|
2015-11-24 13:47:25 +08:00
|
|
|
void semantic_analyze(CodeGen *g) {
|
2015-11-24 17:43:45 +08:00
|
|
|
g->mod = LLVMModuleCreateWithName("ZigModule");
|
|
|
|
|
2015-11-24 13:47:25 +08:00
|
|
|
// Pass 1.
|
|
|
|
analyze_node(g, g->root);
|
|
|
|
}
|
|
|
|
|
2015-11-24 17:43:45 +08:00
|
|
|
static LLVMValueRef gen_expr(CodeGen *g, AstNode *expr_node);
|
2015-11-24 15:35:23 +08:00
|
|
|
|
|
|
|
static LLVMValueRef gen_fn_call(CodeGen *g, AstNode *fn_call_node) {
|
|
|
|
assert(fn_call_node->type == NodeTypeFnCall);
|
|
|
|
|
2015-11-24 17:43:45 +08:00
|
|
|
Buf *name = &fn_call_node->data.fn_call.name;
|
2015-11-24 15:35:23 +08:00
|
|
|
|
2015-11-24 17:43:45 +08:00
|
|
|
auto entry = g->fn_table.maybe_get(name);
|
|
|
|
if (!entry) {
|
|
|
|
add_node_error(g, fn_call_node,
|
|
|
|
buf_sprintf("undefined function: '%s'", buf_ptr(name)));
|
|
|
|
return LLVMConstNull(LLVMInt32Type());
|
|
|
|
}
|
|
|
|
FnTableEntry *fn_table_entry = entry->value;
|
|
|
|
assert(fn_table_entry->proto_node->type == NodeTypeFnProto);
|
|
|
|
int expected_param_count = fn_table_entry->proto_node->data.fn_proto.params.length;
|
|
|
|
int actual_param_count = fn_call_node->data.fn_call.params.length;
|
|
|
|
if (expected_param_count != actual_param_count) {
|
|
|
|
add_node_error(g, fn_call_node,
|
|
|
|
buf_sprintf("wrong number of arguments. Expected %d, got %d.",
|
|
|
|
expected_param_count, actual_param_count));
|
|
|
|
return LLVMConstNull(LLVMInt32Type());
|
|
|
|
}
|
2015-11-24 15:35:23 +08:00
|
|
|
|
2015-11-24 17:43:45 +08:00
|
|
|
LLVMValueRef *param_values = allocate<LLVMValueRef>(actual_param_count);
|
|
|
|
for (int i = 0; i < actual_param_count; i += 1) {
|
|
|
|
AstNode *expr_node = fn_call_node->data.fn_call.params.at(i);
|
|
|
|
param_values[i] = gen_expr(g, expr_node);
|
|
|
|
}
|
2015-11-24 15:35:23 +08:00
|
|
|
|
2015-11-24 17:43:45 +08:00
|
|
|
LLVMValueRef result = LLVMBuildCall(g->builder, fn_table_entry->fn_value,
|
|
|
|
param_values, actual_param_count, "");
|
|
|
|
|
2015-11-25 04:37:14 +08:00
|
|
|
if (type_is_unreachable(fn_table_entry->proto_node->data.fn_proto.return_type)) {
|
|
|
|
return LLVMBuildUnreachable(g->builder);
|
|
|
|
} else {
|
|
|
|
return result;
|
|
|
|
}
|
2015-11-24 17:43:45 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static LLVMValueRef find_or_create_string(CodeGen *g, Buf *str) {
|
|
|
|
auto entry = g->str_table.maybe_get(str);
|
|
|
|
if (entry) {
|
|
|
|
return entry->value;
|
|
|
|
}
|
|
|
|
LLVMValueRef text = LLVMConstString(buf_ptr(str), buf_len(str), false);
|
|
|
|
LLVMValueRef global_value = LLVMAddGlobal(g->mod, LLVMTypeOf(text), "");
|
2015-11-24 18:06:10 +08:00
|
|
|
LLVMSetLinkage(global_value, LLVMPrivateLinkage);
|
2015-11-24 17:43:45 +08:00
|
|
|
LLVMSetInitializer(global_value, text);
|
|
|
|
LLVMSetGlobalConstant(global_value, true);
|
2015-11-24 18:06:10 +08:00
|
|
|
LLVMSetUnnamedAddr(global_value, true);
|
2015-11-24 17:43:45 +08:00
|
|
|
g->str_table.put(str, global_value);
|
|
|
|
|
|
|
|
return global_value;
|
2015-11-24 15:35:23 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static LLVMValueRef gen_expr(CodeGen *g, AstNode *expr_node) {
|
|
|
|
assert(expr_node->type == NodeTypeExpression);
|
|
|
|
switch (expr_node->data.expression.type) {
|
|
|
|
case AstNodeExpressionTypeNumber:
|
2015-11-24 17:43:45 +08:00
|
|
|
{
|
|
|
|
Buf *number_str = &expr_node->data.expression.data.number;
|
|
|
|
LLVMTypeRef number_type = LLVMInt32Type();
|
|
|
|
LLVMValueRef number_val = LLVMConstIntOfStringAndSize(number_type,
|
|
|
|
buf_ptr(number_str), buf_len(number_str), 10);
|
|
|
|
return number_val;
|
|
|
|
}
|
2015-11-24 15:35:23 +08:00
|
|
|
case AstNodeExpressionTypeString:
|
2015-11-24 17:43:45 +08:00
|
|
|
{
|
|
|
|
Buf *str = &expr_node->data.expression.data.string;
|
2015-11-24 18:06:10 +08:00
|
|
|
LLVMValueRef str_val = find_or_create_string(g, str);
|
|
|
|
LLVMValueRef indices[] = {
|
|
|
|
LLVMConstInt(LLVMInt32Type(), 0, false),
|
|
|
|
LLVMConstInt(LLVMInt32Type(), 0, false)
|
|
|
|
};
|
|
|
|
LLVMValueRef ptr_val = LLVMBuildInBoundsGEP(g->builder, str_val,
|
|
|
|
indices, 2, "");
|
|
|
|
|
|
|
|
return ptr_val;
|
2015-11-24 17:43:45 +08:00
|
|
|
}
|
2015-11-24 15:35:23 +08:00
|
|
|
case AstNodeExpressionTypeFnCall:
|
|
|
|
return gen_fn_call(g, expr_node->data.expression.data.fn_call);
|
2015-11-25 04:37:14 +08:00
|
|
|
case AstNodeExpressionTypeUnreachable:
|
|
|
|
return LLVMBuildUnreachable(g->builder);
|
2015-11-24 15:35:23 +08:00
|
|
|
}
|
|
|
|
zig_unreachable();
|
|
|
|
}
|
|
|
|
|
|
|
|
static void gen_block(CodeGen *g, AstNode *block_node) {
|
|
|
|
assert(block_node->type == NodeTypeBlock);
|
|
|
|
|
|
|
|
for (int i = 0; i < block_node->data.block.statements.length; i += 1) {
|
|
|
|
AstNode *statement_node = block_node->data.block.statements.at(i);
|
|
|
|
assert(statement_node->type == NodeTypeStatement);
|
|
|
|
switch (statement_node->data.statement.type) {
|
|
|
|
case AstNodeStatementTypeReturn:
|
|
|
|
{
|
|
|
|
AstNode *expr_node = statement_node->data.statement.data.retrn.expression;
|
|
|
|
LLVMValueRef value = gen_expr(g, expr_node);
|
|
|
|
LLVMBuildRet(g->builder, value);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
case AstNodeStatementTypeExpression:
|
|
|
|
{
|
|
|
|
AstNode *expr_node = statement_node->data.statement.data.expr.expression;
|
|
|
|
gen_expr(g, expr_node);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-11-24 13:47:25 +08:00
|
|
|
void code_gen(CodeGen *g) {
|
2015-11-24 15:35:23 +08:00
|
|
|
g->builder = LLVMCreateBuilder();
|
|
|
|
|
2015-11-24 17:43:45 +08:00
|
|
|
auto it = g->fn_defs.entry_iterator();
|
|
|
|
for (;;) {
|
|
|
|
auto *entry = it.next();
|
|
|
|
if (!entry)
|
|
|
|
break;
|
2015-11-24 15:35:23 +08:00
|
|
|
|
2015-11-24 17:43:45 +08:00
|
|
|
AstNode *fn_def_node = entry->value;
|
|
|
|
AstNodeFnDef *fn_def = &fn_def_node->data.fn_def;
|
|
|
|
assert(fn_def->fn_proto->type == NodeTypeFnProto);
|
|
|
|
AstNodeFnProto *fn_proto = &fn_def->fn_proto->data.fn_proto;
|
2015-11-24 15:35:23 +08:00
|
|
|
|
2015-11-24 17:43:45 +08:00
|
|
|
LLVMTypeRef ret_type = to_llvm_type(fn_proto->return_type);
|
|
|
|
LLVMTypeRef *param_types = allocate<LLVMTypeRef>(fn_proto->params.length);
|
|
|
|
for (int param_decl_i = 0; param_decl_i < fn_proto->params.length; param_decl_i += 1) {
|
|
|
|
AstNode *param_node = fn_proto->params.at(param_decl_i);
|
2015-11-24 15:35:23 +08:00
|
|
|
assert(param_node->type == NodeTypeParamDecl);
|
|
|
|
AstNode *type_node = param_node->data.param_decl.type;
|
|
|
|
param_types[param_decl_i] = to_llvm_type(type_node);
|
|
|
|
}
|
2015-11-24 17:43:45 +08:00
|
|
|
LLVMTypeRef function_type = LLVMFunctionType(ret_type, param_types, fn_proto->params.length, 0);
|
|
|
|
LLVMValueRef fn = LLVMAddFunction(g->mod, buf_ptr(&fn_proto->name), function_type);
|
2015-11-24 15:35:23 +08:00
|
|
|
|
2015-11-25 04:37:14 +08:00
|
|
|
if (type_is_unreachable(fn_proto->return_type)) {
|
|
|
|
LLVMAddFunctionAttr(fn, LLVMNoReturnAttribute);
|
|
|
|
}
|
|
|
|
|
2015-11-24 17:43:45 +08:00
|
|
|
LLVMBasicBlockRef entry_block = LLVMAppendBasicBlock(fn, "entry");
|
|
|
|
LLVMPositionBuilderAtEnd(g->builder, entry_block);
|
2015-11-24 15:35:23 +08:00
|
|
|
|
2015-11-24 17:43:45 +08:00
|
|
|
gen_block(g, fn_def->body);
|
2015-11-24 15:35:23 +08:00
|
|
|
}
|
2015-11-24 13:47:25 +08:00
|
|
|
|
2015-11-24 17:43:45 +08:00
|
|
|
LLVMDumpModule(g->mod);
|
2015-11-24 18:06:10 +08:00
|
|
|
|
|
|
|
char *error = nullptr;
|
|
|
|
LLVMVerifyModule(g->mod, LLVMAbortProcessAction, &error);
|
2015-11-24 13:47:25 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
ZigList<ErrorMsg> *codegen_error_messages(CodeGen *g) {
|
|
|
|
return &g->errors;
|
|
|
|
}
|
2015-11-25 04:00:38 +08:00
|
|
|
|
|
|
|
|
|
|
|
void code_gen_link(CodeGen *g, bool is_static, const char *out_file) {
|
|
|
|
LLVMInitializeAllTargets();
|
|
|
|
LLVMInitializeAllTargetMCs();
|
|
|
|
LLVMInitializeAllAsmPrinters();
|
|
|
|
LLVMInitializeAllAsmParsers();
|
|
|
|
LLVMInitializeNativeTarget();
|
|
|
|
|
|
|
|
|
|
|
|
LLVMPassRegistryRef registry = LLVMGetGlobalPassRegistry();
|
|
|
|
LLVMInitializeCore(registry);
|
|
|
|
LLVMInitializeCodeGen(registry);
|
|
|
|
LLVMZigInitializeLoopStrengthReducePass(registry);
|
|
|
|
LLVMZigInitializeLowerIntrinsicsPass(registry);
|
|
|
|
LLVMZigInitializeUnreachableBlockElimPass(registry);
|
|
|
|
|
|
|
|
char *native_triple = LLVMGetDefaultTargetTriple();
|
|
|
|
|
|
|
|
LLVMTargetRef target_ref;
|
|
|
|
char *err_msg = nullptr;
|
|
|
|
if (LLVMGetTargetFromTriple(native_triple, &target_ref, &err_msg)) {
|
|
|
|
zig_panic("unable to get target from triple: %s", err_msg);
|
|
|
|
}
|
|
|
|
|
|
|
|
char *native_cpu = LLVMZigGetHostCPUName();
|
|
|
|
char *native_features = LLVMZigGetNativeFeatures();
|
|
|
|
|
|
|
|
LLVMCodeGenOptLevel opt_level = LLVMCodeGenLevelNone;
|
|
|
|
|
|
|
|
LLVMRelocMode reloc_mode = is_static ? LLVMRelocStatic : LLVMRelocPIC;
|
|
|
|
|
|
|
|
LLVMTargetMachineRef target_machine = LLVMCreateTargetMachine(target_ref, native_triple,
|
|
|
|
native_cpu, native_features, opt_level, reloc_mode, LLVMCodeModelDefault);
|
|
|
|
|
|
|
|
if (LLVMTargetMachineEmitToFile(target_machine, g->mod, strdup(out_file), LLVMObjectFile, &err_msg)) {
|
|
|
|
zig_panic("unable to write object file: %s", err_msg);
|
|
|
|
}
|
|
|
|
}
|