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fixed: loops

This commit is contained in:
Sven Vogel 2024-06-09 15:11:44 +02:00
parent 7f93daa780
commit 5a59f0fb3d
12 changed files with 305 additions and 124 deletions
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4
src/cfg/opt.c
View File

@ -159,6 +159,10 @@ TargetConfig* default_target_config_from_args() {
}
}
// TODO: free vvvvvvvvvvvvv
char* cwd = g_get_current_dir();
g_array_append_val(config->link_search_paths, cwd);
if (is_option_set("link-paths")) {
const Option* opt = get_option("link-paths");

4
src/llvm/backend.c
View File

@ -67,8 +67,8 @@ Target create_target_from_config(const TargetConfig* config) {
target.opt = llvm_opt_from_int(config->optimization_level);
INFO("Configured target: %s/%d: (%s) on %s { %s }", target.name, target.opt,
target.triple, target.cpu, target.features);
INFO("Configured target: %s/%d: (%s) on %s { %s }", target.name.str, target.opt,
target.triple.str, target.cpu.str, target.features.str);
return target;
}

13
src/llvm/link/lld.c
View File

@ -13,6 +13,7 @@
extern int lld_main(int Argc, const char **Argv, const char **outstr);
const char* get_absolute_link_path(const TargetConfig* config, const char* link_target_name) {
INFO("resolving absolute path for link target: %s", link_target_name);
for (guint i = 0; i < config->link_search_paths->len; i++) {
const char* link_directory_path = g_array_index(config->link_search_paths, char*, i);
@ -28,6 +29,7 @@ const char* get_absolute_link_path(const TargetConfig* config, const char* link_
g_free(cwd);
if (exists && !is_dir) {
INFO("link target found at: %s", canonical);
return canonical;
}
@ -48,9 +50,11 @@ TargetLinkConfig* lld_create_link_config(const Target* target, const TargetConfi
config->colorize = stdout_supports_ansi_esc();
// append build object file
const char* target_object = get_absolute_link_path(target_config, (const char*) target->name.str);
char* basename = g_strjoin(".", target_config->name, "o", NULL);
char* filename = g_build_filename(target_config->archive_directory, basename, NULL);
const char* target_object = get_absolute_link_path(target_config, (const char*) filename);
if (target_object == NULL) {
ERROR("failed to resolve path to target object: %s", target->name.str);
ERROR("failed to resolve path to target object: %s", filename);
lld_delete_link_config(config);
return NULL;
}
@ -99,13 +103,18 @@ GArray* lld_create_lld_arguments(TargetLinkConfig* config) {
}
BackendError lld_link_target(TargetLinkConfig* config) {
DEBUG("linking target...");
BackendError err = SUCCESS;
GArray* argv = lld_create_lld_arguments(config);
INFO("Linking target...");
const char* message = NULL;
int status = lld_main((int) argv->len, (const char**) argv->data, &message);
INFO("done linking target...");
g_array_free(argv, TRUE);
if (message != NULL) {

201
src/llvm/llvm-ir/expr.c
View File

@ -6,33 +6,41 @@
#include <llvm/llvm-ir/types.h>
#include <sys/log.h>
BackendError impl_bitwise_operation([[maybe_unused]] LLVMBackendCompileUnit *unit,
[[maybe_unused]] LLVMLocalScope *scope,
BackendError impl_bitwise_operation(LLVMBackendCompileUnit *unit,
LLVMLocalScope *scope,
LLVMBuilderRef builder,
Operation *operation,
LLVMValueRef *llvm_result) {
// TODO: resolve lhs and rhs or op
LLVMValueRef rhs = NULL;
LLVMValueRef lhs = NULL;
Expression *rhs = NULL;
Expression *lhs = NULL;
LLVMValueRef llvm_rhs = NULL;
LLVMValueRef llvm_lhs = NULL;
if (operation->impl.bitwise == BitwiseNot) {
if (operation->impl.arithmetic == BitwiseNot) {
// single operand
rhs = g_array_index(operation->operands, Expression*, 0);
impl_expr(unit, scope, builder, rhs, &llvm_rhs);
} else {
// two operands
lhs = g_array_index(operation->operands, Expression*, 0);
impl_expr(unit, scope, builder, lhs, &llvm_lhs);
rhs = g_array_index(operation->operands, Expression*, 1);
impl_expr(unit, scope, builder, rhs, &llvm_rhs);
}
switch (operation->impl.bitwise) {
case BitwiseAnd:
*llvm_result = LLVMBuildAnd(builder, lhs, rhs, "bitwise and");
*llvm_result = LLVMBuildAnd(builder, llvm_lhs, llvm_rhs, "bitwise and");
break;
case BitwiseOr:
*llvm_result = LLVMBuildOr(builder, lhs, rhs, "bitwise or");
*llvm_result = LLVMBuildOr(builder, llvm_lhs, llvm_rhs, "bitwise or");
break;
case BitwiseXor:
*llvm_result = LLVMBuildXor(builder, lhs, rhs, "bitwise xor");
*llvm_result = LLVMBuildXor(builder, llvm_lhs, llvm_rhs, "bitwise xor");
break;
case BitwiseNot:
*llvm_result = LLVMBuildNot(builder, rhs, "bitwise not");
*llvm_result = LLVMBuildNot(builder, llvm_rhs, "bitwise not");
break;
}
@ -57,67 +65,89 @@ static LLVMValueRef convert_integral_to_boolean(
return LLVMBuildICmp(builder, LLVMIntNE, zero, integral, "to boolean");
}
BackendError impl_logical_operation([[maybe_unused]] LLVMBackendCompileUnit *unit,
[[maybe_unused]] LLVMLocalScope *scope,
BackendError impl_logical_operation(LLVMBackendCompileUnit *unit,
LLVMLocalScope *scope,
LLVMBuilderRef builder,
Operation *operation,
LLVMValueRef *llvm_result) {
// TODO: resolve lhs and rhs or op
LLVMValueRef rhs = NULL;
LLVMValueRef lhs = NULL;
Expression *rhs = NULL;
Expression *lhs = NULL;
LLVMValueRef llvm_rhs = NULL;
LLVMValueRef llvm_lhs = NULL;
if (operation->impl.logical == LogicalNot) {
if (operation->impl.arithmetic == LogicalNot) {
// single operand
rhs = convert_integral_to_boolean(builder, rhs);
rhs = g_array_index(operation->operands, Expression*, 0);
impl_expr(unit, scope, builder, rhs, &llvm_rhs);
} else {
// two operands
lhs = convert_integral_to_boolean(builder, lhs);
rhs = convert_integral_to_boolean(builder, rhs);
lhs = g_array_index(operation->operands, Expression*, 0);
impl_expr(unit, scope, builder, lhs, &llvm_lhs);
rhs = g_array_index(operation->operands, Expression*, 1);
impl_expr(unit, scope, builder, rhs, &llvm_rhs);
}
switch (operation->impl.logical) {
case LogicalAnd:
*llvm_result = LLVMBuildAnd(builder, lhs, rhs, "logical and");
*llvm_result = LLVMBuildAnd(builder, llvm_lhs, llvm_rhs, "logical and");
break;
case LogicalOr:
*llvm_result = LLVMBuildOr(builder, lhs, rhs, "logical or");
*llvm_result = LLVMBuildOr(builder, llvm_lhs, llvm_rhs, "logical or");
break;
case LogicalXor:
*llvm_result = LLVMBuildXor(builder, lhs, rhs, "logical xor");
*llvm_result = LLVMBuildXor(builder, llvm_lhs, llvm_rhs, "logical xor");
break;
case LogicalNot:
*llvm_result = LLVMBuildNot(builder, rhs, "logical not");
*llvm_result = LLVMBuildNot(builder, llvm_rhs, "logical not");
break;
}
return SUCCESS;
}
static LLVMBool is_floating_point(LLVMValueRef value) {
LLVMTypeRef valueType = LLVMTypeOf(value);
LLVMTypeKind typeKind = LLVMGetTypeKind(valueType);
static LLVMBool is_floating_point(Type *value) {
if (value->kind == TypeKindPrimitive) {
return value->impl.primitive == Float;
}
return typeKind == LLVMFloatTypeKind || typeKind == LLVMHalfTypeKind || typeKind == LLVMDoubleTypeKind ||
typeKind == LLVMFP128TypeKind;
if (value->kind == TypeKindComposite) {
return value->impl.composite.primitive == Float;
}
return FALSE;
}
static LLVMBool is_integral(LLVMValueRef value) {
LLVMTypeRef valueType = LLVMTypeOf(value);
LLVMTypeKind typeKind = LLVMGetTypeKind(valueType);
static LLVMBool is_integral(Type *value) {
if (value->kind == TypeKindPrimitive) {
return value->impl.primitive == Int;
}
return typeKind == LLVMIntegerTypeKind;
if (value->kind == TypeKindComposite) {
return value->impl.composite.primitive == Int;
}
return FALSE;
}
BackendError impl_relational_operation([[maybe_unused]] LLVMBackendCompileUnit *unit,
[[maybe_unused]] LLVMLocalScope *scope,
BackendError impl_relational_operation(LLVMBackendCompileUnit *unit,
LLVMLocalScope *scope,
LLVMBuilderRef builder,
Operation *operation,
LLVMValueRef *llvm_result) {
// TODO: resolve lhs and rhs or op
LLVMValueRef rhs = NULL;
LLVMValueRef lhs = NULL;
Expression *rhs = NULL;
Expression *lhs = NULL;
LLVMValueRef llvm_rhs = NULL;
LLVMValueRef llvm_lhs = NULL;
if ((is_integral(lhs) && is_integral(rhs)) == 1) {
// two operands
lhs = g_array_index(operation->operands, Expression*, 0);
impl_expr(unit, scope, builder, lhs, &llvm_lhs);
rhs = g_array_index(operation->operands, Expression*, 1);
impl_expr(unit, scope, builder, rhs, &llvm_rhs);
if (is_integral(rhs->result)) {
// integral type
LLVMIntPredicate operator = 0;
@ -133,8 +163,9 @@ BackendError impl_relational_operation([[maybe_unused]] LLVMBackendCompileUnit *
break;
}
*llvm_result = LLVMBuildICmp(builder, operator, lhs, rhs, "integral comparison");
} else if ((is_floating_point(lhs) && is_floating_point(rhs)) == 1) {
*llvm_result = LLVMBuildICmp(builder, operator, llvm_lhs, llvm_rhs, "integral comparison");
} else if (is_floating_point(rhs->result)) {
// integral type
LLVMRealPredicate operator = 0;
@ -150,7 +181,7 @@ BackendError impl_relational_operation([[maybe_unused]] LLVMBackendCompileUnit *
break;
}
*llvm_result = LLVMBuildFCmp(builder, operator, lhs, rhs, "floating point comparison");
*llvm_result = LLVMBuildFCmp(builder, operator, llvm_lhs, llvm_rhs, "floating point comparison");
} else {
PANIC("invalid type for relational operator");
}
@ -158,53 +189,69 @@ BackendError impl_relational_operation([[maybe_unused]] LLVMBackendCompileUnit *
return SUCCESS;
}
BackendError impl_arithmetic_operation([[maybe_unused]] LLVMBackendCompileUnit *unit,
[[maybe_unused]] LLVMLocalScope *scope,
BackendError impl_arithmetic_operation(LLVMBackendCompileUnit *unit,
LLVMLocalScope *scope,
LLVMBuilderRef builder,
Operation *operation,
LLVMValueRef *llvm_result) {
// TODO: resolve lhs and rhs or op
LLVMValueRef rhs = NULL;
LLVMValueRef lhs = NULL;
Expression *rhs = NULL;
Expression *lhs = NULL;
LLVMValueRef llvm_rhs = NULL;
LLVMValueRef llvm_lhs = NULL;
if ((is_integral(lhs) && is_integral(rhs)) == 1) {
// integral type
if (operation->impl.arithmetic == Negate) {
// single operand
rhs = g_array_index(operation->operands, Expression*, 0);
impl_expr(unit, scope, builder, rhs, &llvm_rhs);
} else {
// two operands
lhs = g_array_index(operation->operands, Expression*, 0);
impl_expr(unit, scope, builder, lhs, &llvm_lhs);
rhs = g_array_index(operation->operands, Expression*, 1);
impl_expr(unit, scope, builder, rhs, &llvm_rhs);
}
if (is_integral(rhs->result)) {
switch (operation->impl.arithmetic) {
case Add:
*llvm_result = LLVMBuildNSWAdd(builder, lhs, rhs, "signed integer addition");
*llvm_result = LLVMBuildNSWAdd(builder, llvm_lhs, llvm_rhs, "signed integer addition");
break;
case Sub:
*llvm_result = LLVMBuildNSWSub(builder, lhs, rhs, "signed integer subtraction");
*llvm_result = LLVMBuildNSWSub(builder, llvm_lhs, llvm_rhs, "signed integer subtraction");
break;
case Mul:
*llvm_result = LLVMBuildNSWMul(builder, lhs, rhs, "signed integer multiply");
*llvm_result = LLVMBuildNSWMul(builder, llvm_lhs, llvm_rhs, "signed integer multiply");
break;
case Div:
*llvm_result = LLVMBuildSDiv(builder, lhs, rhs, "signed integer divide");
*llvm_result = LLVMBuildSDiv(builder, llvm_lhs, llvm_rhs, "signed integer divide");
break;
case Negate:
*llvm_result = LLVMBuildNeg(builder, llvm_rhs, "signed integer negate");
break;
}
} else if ((is_floating_point(lhs) && is_floating_point(rhs)) == 1) {
// integral type
LLVMRealPredicate operator = 0;
} else if (is_floating_point(rhs->result)) {
switch (operation->impl.arithmetic) {
case Add:
*llvm_result = LLVMBuildFAdd(builder, lhs, rhs, "floating point addition");
*llvm_result = LLVMBuildFAdd(builder, llvm_lhs, llvm_rhs, "floating point addition");
break;
case Sub:
*llvm_result = LLVMBuildFSub(builder, lhs, rhs, "floating point subtraction");
*llvm_result = LLVMBuildFSub(builder, llvm_lhs, llvm_rhs, "floating point subtraction");
break;
case Mul:
*llvm_result = LLVMBuildFMul(builder, lhs, rhs, "floating point multiply");
*llvm_result = LLVMBuildFMul(builder, llvm_lhs, llvm_rhs, "floating point multiply");
break;
case Div:
*llvm_result = LLVMBuildFDiv(builder, lhs, rhs, "floating point divide");
*llvm_result = LLVMBuildFDiv(builder, llvm_lhs, llvm_rhs, "floating point divide");
break;
case Negate:
*llvm_result = LLVMBuildFNeg(builder, llvm_rhs, "floating point negate");
break;
}
*llvm_result = LLVMBuildFCmp(builder, operator, lhs, rhs, "floating point comparison");
} else {
PANIC("invalid type for arithmetic operator");
}
@ -244,8 +291,10 @@ BackendError impl_operation(LLVMBackendCompileUnit *unit, LLVMLocalScope *scope,
BackendError impl_transmute(LLVMBackendCompileUnit *unit, LLVMLocalScope *scope,
LLVMBuilderRef builder, Transmute *transmute,
LLVMValueRef *llvm_result) {
// TODO: resolve sub expression
LLVMValueRef operand = NULL;
impl_expr(unit, scope, builder, transmute->operand, &operand);
LLVMTypeRef target_type = NULL;
BackendError err = get_type_impl(unit, scope->func_scope->global_scope,
transmute->targetType, &target_type);
@ -272,8 +321,9 @@ static LLVMBool is_type_signed(const Type *type) {
BackendError impl_typecast(LLVMBackendCompileUnit *unit, LLVMLocalScope *scope,
LLVMBuilderRef builder, TypeCast *typecast,
LLVMValueRef *llvm_result) {
// TODO: resolve sub expression
LLVMValueRef operand = NULL;
impl_expr(unit, scope, builder, typecast->operand, &operand);
LLVMTypeRef target_type = NULL;
BackendError err = get_type_impl(unit, scope->func_scope->global_scope,
typecast->targetType, &target_type);
@ -283,18 +333,34 @@ BackendError impl_typecast(LLVMBackendCompileUnit *unit, LLVMLocalScope *scope,
}
LLVMBool dst_signed = is_type_signed(typecast->targetType);
// TODO: derive source type sign
LLVMBool src_signed = is_type_signed(typecast->operand->result);
const LLVMOpcode opcode =
LLVMGetCastOpcode(operand, 0, target_type, dst_signed);
LLVMGetCastOpcode(operand, src_signed, target_type, dst_signed);
*llvm_result =
LLVMBuildCast(builder, opcode, operand, target_type, "transmute");
return err;
}
BackendError impl_variable_load(LLVMBackendCompileUnit *unit, LLVMLocalScope *scope,
LLVMBuilderRef builder, Variable *variable,
LLVMValueRef *llvm_result) {
LLVMValueRef llvm_variable = get_variable(scope, variable->name);
if (llvm_variable == NULL) {
return new_backend_impl_error(Implementation, NULL, "Variable not found");
}
*llvm_result = llvm_variable;
return SUCCESS;
}
BackendError impl_expr(LLVMBackendCompileUnit *unit, LLVMLocalScope *scope,
LLVMBuilderRef builder, Expression *expr,
LLVMValueRef *llvm_result) {
DEBUG("implementing expression: %ld", expr->kind);
BackendError err = SUCCESS;
switch (expr->kind) {
@ -314,6 +380,13 @@ BackendError impl_expr(LLVMBackendCompileUnit *unit, LLVMLocalScope *scope,
err = impl_operation(unit, scope, builder, &expr->impl.operation,
llvm_result);
break;
case ExpressionKindVariable:
err = impl_variable_load(unit, scope, builder, expr->impl.variable,
llvm_result);
break;
default:
err = new_backend_impl_error(Implementation, NULL, "unknown expression");
break;
}
return err;

43
src/llvm/llvm-ir/func.c
View File

@ -7,6 +7,7 @@
#include <llvm/parser.h>
#include <llvm/llvm-ir/types.h>
#include <llvm/llvm-ir/stmt.h>
#include <llvm/llvm-ir/variables.h>
#include <set/types.h>
#include <sys/log.h>
@ -43,7 +44,13 @@ LLVMValueRef get_variable(const LLVMLocalScope* scope, const char* name) {
return get_variable(scope->parent_scope, name);
}
return get_parameter(scope->func_scope, name);
LLVMValueRef param = get_parameter(scope->func_scope, name);
if (param != NULL) {
return param;
}
LLVMValueRef global_var = get_global_variable(scope->func_scope->global_scope, name);
return global_var;
}
BackendError impl_param_type(LLVMBackendCompileUnit* unit,
@ -110,7 +117,7 @@ BackendError impl_func_decl(LLVMBackendCompileUnit* unit,
return err;
}
BackendError impl_func(LLVMBackendCompileUnit* unit,
BackendError impl_func_def(LLVMBackendCompileUnit* unit,
LLVMGlobalScope* global_scope,
FunctionDefinition* fundef, const char* name) {
BackendError err = SUCCESS;
@ -131,10 +138,10 @@ BackendError impl_func(LLVMBackendCompileUnit* unit,
g_hash_table_insert(global_scope->functions, (gpointer)name, llvm_func);
// create function body builder
LLVMBasicBlockRef body =
LLVMAppendBasicBlockInContext(unit->context, llvm_func, "entry");
LLVMBasicBlockRef entry =
LLVMAppendBasicBlockInContext(unit->context, llvm_func, "func.entry");
LLVMBuilderRef builder = LLVMCreateBuilderInContext(unit->context);
LLVMPositionBuilderAtEnd(builder, body);
LLVMPositionBuilderAtEnd(builder, entry);
// create value references for parameter
const size_t params = fundef->parameter->len;
@ -144,7 +151,20 @@ BackendError impl_func(LLVMBackendCompileUnit* unit,
LLVMGetParam(llvm_func, i));
}
err = impl_block(unit, builder, func_scope, fundef->body);
LLVMBasicBlockRef llvm_start_body_block = NULL;
LLVMBasicBlockRef llvm_end_body_block = NULL;
err = impl_block(unit, builder, func_scope, &llvm_start_body_block, &llvm_end_body_block, fundef->body);
LLVMPositionBuilderAtEnd(builder, entry);
LLVMBuildBr(builder, llvm_start_body_block);
// insert returning end block
LLVMBasicBlockRef end_block =
LLVMAppendBasicBlockInContext(unit->context, llvm_func, "func.end");
LLVMPositionBuilderAtEnd(builder, end_block);
LLVMBuildRetVoid(builder);
LLVMPositionBuilderAtEnd(builder, llvm_end_body_block);
LLVMBuildBr(builder, end_block);
LLVMDisposeBuilder(builder);
@ -168,11 +188,16 @@ BackendError impl_functions(LLVMBackendCompileUnit* unit,
size_t function_count = 0;
while (g_hash_table_iter_next(&iterator, &key, &val) != FALSE) {
err =
impl_func(unit, scope, (FunctionDefinition*)val, (const char*)key);
Function* func = (Function*) val;
if (func->kind == FunctionDeclarationKind) {
// err = impl_func_decl(unit, scope, &func->impl.declaration, (const char*) key);
} else {
err = impl_func_def(unit, scope, &func->impl.definition, (const char*)key);
}
if (err.kind != Success) {
break;
return err;
}
function_count++;

135
src/llvm/llvm-ir/stmt.c
View File

@ -9,6 +9,7 @@
#include <llvm/llvm-ir/expr.h>
#include <llvm/llvm-ir/func.h>
#include <llvm/llvm-ir/types.h>
#include <assert.h>
BackendError impl_assign_stmt(
LLVMBackendCompileUnit *unit,
@ -31,6 +32,7 @@ BackendError impl_assign_stmt(
case VariableKindDefinition:
LLVMValueRef llvm_ptr =
get_variable(scope, assignment->variable->name);
LLVMBuildStore(builder, llvm_value, llvm_ptr
);
break;
@ -44,20 +46,39 @@ BackendError impl_assign_stmt(
BackendError impl_basic_block(LLVMBackendCompileUnit *unit,
LLVMBuilderRef builder, LLVMLocalScope *scope,
const Block *block, LLVMBasicBlockRef *llvm_block) {
const Block *block, LLVMBasicBlockRef *llvm_start_block, LLVMBasicBlockRef *llvm_end_block) {
DEBUG("implementing basic block...");
BackendError err = SUCCESS;
LLVMLocalScope *block_scope = new_local_scope(scope);
// append a new LLVM basic block
*llvm_block = LLVMAppendBasicBlockInContext(unit->context, scope->func_scope->llvm_func,
"basic block");
LLVMPositionBuilderAtEnd(builder, *llvm_block);
*llvm_start_block = LLVMAppendBasicBlockInContext(unit->context, scope->func_scope->llvm_func,
"stmt.block.start");
LLVMPositionBuilderAtEnd(builder, *llvm_start_block);
LLVMBasicBlockRef end_previous_block = *llvm_start_block;
for (size_t i = 0; i < block->statemnts->len; i++) {
Statement *stmt = ((Statement *) block->statemnts->data) + i;
impl_stmt(unit, builder, scope, stmt);
DEBUG("building block statement %d of %d", i, block->statemnts->len);
Statement* stmt = g_array_index(block->statemnts, Statement*, i);
LLVMBasicBlockRef llvm_next_start_block = NULL;
LLVMBasicBlockRef llvm_next_end_block = NULL;
err = impl_stmt(unit, builder, scope, stmt, &llvm_next_start_block, &llvm_next_end_block);
if (err.kind != Success) {
return err;
}
if (llvm_next_end_block != NULL) {
LLVMPositionBuilderAtEnd(builder, end_previous_block);
LLVMBuildBr(builder, llvm_next_start_block);
LLVMPositionBuilderAtEnd(builder, llvm_next_end_block);
end_previous_block = llvm_next_end_block;
}
}
*llvm_end_block = end_previous_block;
delete_local_scope(block_scope);
return err;
@ -65,21 +86,33 @@ BackendError impl_basic_block(LLVMBackendCompileUnit *unit,
BackendError impl_while(LLVMBackendCompileUnit *unit,
LLVMBuilderRef builder, LLVMLocalScope *scope,
LLVMBasicBlockRef* llvm_start_block,
LLVMBasicBlockRef* llvm_end_block,
const While *while_stmt) {
DEBUG("implementing while...");
BackendError err;
// Create condition block
LLVMBasicBlockRef while_cond_block = LLVMAppendBasicBlockInContext(unit->context, scope->func_scope->llvm_func,
"loop.while.cond");
*llvm_start_block = while_cond_block;
LLVMPositionBuilderAtEnd(builder, while_cond_block);
// Resolve condition in block to a variable
LLVMValueRef cond_result = NULL;
impl_expr(unit, scope, builder, (Expression *) &while_stmt->conditon, &cond_result);
err = impl_expr(unit, scope, builder, (Expression *) while_stmt->conditon, &cond_result);
if (err.kind != Success) {
return err;
}
// build body of loop
LLVMBasicBlockRef while_body_block = NULL;
err = impl_basic_block(unit, builder, scope, &while_stmt->block, &while_body_block);
LLVMPositionBuilderAtEnd(builder, while_body_block);
LLVMBasicBlockRef while_start_body_block = NULL;
LLVMBasicBlockRef while_end_body_block = NULL;
err = impl_basic_block(unit, builder, scope, &while_stmt->block, &while_start_body_block, &while_end_body_block);
if (err.kind != Success) {
return err;
}
LLVMPositionBuilderAtEnd(builder, while_end_body_block);
// jump back to condition after body end
LLVMBuildBr(builder, while_cond_block);
@ -88,10 +121,12 @@ BackendError impl_while(LLVMBackendCompileUnit *unit,
"loop.while.after");
// build conditional branch at end of condition block
LLVMPositionBuilderAtEnd(builder, while_cond_block);
LLVMBuildCondBr(builder, cond_result, while_body_block, while_after_block);
LLVMBuildCondBr(builder, cond_result, while_start_body_block, while_after_block);
LLVMPositionBuilderAtEnd(builder, while_after_block);
*llvm_end_block = while_after_block;
return err;
}
@ -124,7 +159,7 @@ BackendError impl_func_call(LLVMBackendCompileUnit *unit,
break;
}
Parameter *parameter = g_array_index(call->function->parameter, Parameter*, i);
Parameter *parameter = g_array_index(call->function->impl.declaration.parameter, Parameter*, i);
if (is_parameter_out(parameter)) {
LLVMValueRef zero = LLVMConstInt(LLVMInt32TypeInContext(unit->context), 0, 0);
@ -148,7 +183,7 @@ BackendError impl_func_call(LLVMBackendCompileUnit *unit,
BackendError
impl_cond_block(LLVMBackendCompileUnit *unit, LLVMBuilderRef builder, LLVMLocalScope *scope, Expression *cond,
const Block *block, LLVMBasicBlockRef *cond_block, LLVMBasicBlockRef *body_block,
const Block *block, LLVMBasicBlockRef *cond_block, LLVMBasicBlockRef *start_body_block, LLVMBasicBlockRef *end_body_block,
LLVMValueRef *llvm_cond) {
BackendError err;
@ -159,7 +194,7 @@ impl_cond_block(LLVMBackendCompileUnit *unit, LLVMBuilderRef builder, LLVMLocalS
err = impl_expr(unit, scope, builder, cond, llvm_cond);
if (err.kind == Success) {
// build body of loop
err = impl_basic_block(unit, builder, scope, block, body_block);
err = impl_basic_block(unit, builder, scope, block, start_body_block, end_body_block);
}
return err;
@ -167,49 +202,57 @@ impl_cond_block(LLVMBackendCompileUnit *unit, LLVMBuilderRef builder, LLVMLocalS
BackendError impl_branch(LLVMBackendCompileUnit *unit,
LLVMBuilderRef builder, LLVMLocalScope *scope,
LLVMBasicBlockRef* branch_start_block,
LLVMBasicBlockRef* branch_end_block,
const Branch *branch) {
BackendError err = SUCCESS;
GArray *cond_blocks = g_array_new(FALSE, FALSE, sizeof(LLVMBasicBlockRef));
GArray *body_blocks = g_array_new(FALSE, FALSE, sizeof(LLVMBasicBlockRef));
GArray *start_body_blocks = g_array_new(FALSE, FALSE, sizeof(LLVMBasicBlockRef));
GArray *end_body_blocks = g_array_new(FALSE, FALSE, sizeof(LLVMBasicBlockRef));
GArray *cond_values = g_array_new(FALSE, FALSE, sizeof(LLVMValueRef));
// add If to arrays
{
LLVMBasicBlockRef cond_block = NULL;
LLVMBasicBlockRef body_block = NULL;
LLVMBasicBlockRef start_body_block = NULL;
LLVMBasicBlockRef end_body_block = NULL;
LLVMValueRef cond_value = NULL;
err = impl_cond_block(unit, builder, scope, (Expression *) &branch->ifBranch.conditon, &branch->ifBranch.block,
&cond_block,
&body_block, &cond_value);
&start_body_block, &end_body_block, &cond_value);
g_array_append_val(cond_blocks, cond_block);
g_array_append_val(body_blocks, body_block);
g_array_append_val(start_body_blocks, start_body_block);
g_array_append_val(end_body_blocks, end_body_block);
g_array_append_val(cond_values, cond_value);
}
// generate else if(s)
for (size_t i = 0; i < branch->elseIfBranches->len; i++) {
LLVMBasicBlockRef cond_block = NULL;
LLVMBasicBlockRef body_block = NULL;
LLVMBasicBlockRef start_body_block = NULL;
LLVMBasicBlockRef end_body_block = NULL;
LLVMValueRef cond_value = NULL;
ElseIf *elseIf = ((ElseIf *) branch->elseIfBranches->data) + i;
err = impl_cond_block(unit, builder, scope, elseIf->conditon, &elseIf->block, &cond_block,
&body_block, &cond_value);
&start_body_block, &end_body_block, &cond_value);
g_array_append_val(cond_blocks, cond_block);
g_array_append_val(body_blocks, body_block);
g_array_append_val(start_body_blocks, start_body_block);
g_array_append_val(end_body_blocks, end_body_block);
g_array_append_val(cond_values, cond_value);
}
// else block
if (branch->elseBranch.nodePtr != NULL) {
LLVMBasicBlockRef else_block = NULL;
err = impl_basic_block(unit, builder, scope, &branch->elseBranch.block, &else_block);
g_array_append_val(cond_blocks, else_block);
LLVMBasicBlockRef start_else_block = NULL;
LLVMBasicBlockRef end_else_block = NULL;
err = impl_basic_block(unit, builder, scope, &branch->elseBranch.block, &start_else_block, &end_else_block);
g_array_append_val(cond_blocks, start_else_block);
}
LLVMBasicBlockRef after_block = LLVMAppendBasicBlockInContext(unit->context, scope->func_scope->llvm_func,
@ -224,18 +267,23 @@ BackendError impl_branch(LLVMBackendCompileUnit *unit,
for (size_t i = 0; i < cond_blocks->len - 1; i++) {
LLVMBasicBlockRef next_block = ((LLVMBasicBlockRef *) cond_blocks->data)[i + 1];
LLVMBasicBlockRef cond_block = ((LLVMBasicBlockRef *) cond_blocks->data)[i];
LLVMBasicBlockRef body_block = ((LLVMBasicBlockRef *) body_blocks->data)[i];
LLVMBasicBlockRef start_body_block = ((LLVMBasicBlockRef *) start_body_blocks->data)[i];
LLVMBasicBlockRef end_body_block = ((LLVMBasicBlockRef *) end_body_blocks->data)[i];
LLVMValueRef cond_value = ((LLVMValueRef *) cond_values->data)[i];
LLVMPositionBuilderAtEnd(builder, cond_block);
LLVMBuildCondBr(builder, cond_value, body_block, next_block);
LLVMBuildCondBr(builder, cond_value, start_body_block, next_block);
LLVMPositionBuilderAtEnd(builder, body_block);
LLVMPositionBuilderAtEnd(builder, end_body_block);
LLVMBuildBr(builder, after_block);
}
*branch_start_block = g_array_index(cond_blocks, LLVMBasicBlockRef, 0);
*branch_end_block = g_array_index(cond_blocks, LLVMBasicBlockRef, cond_blocks->len - 1);
g_array_free(cond_blocks, TRUE);
g_array_free(body_blocks, TRUE);
g_array_free(start_body_blocks, TRUE);
g_array_free(end_body_blocks, TRUE);
g_array_free(cond_values, TRUE);
return err;
@ -308,10 +356,10 @@ BackendError impl_var(LLVMBackendCompileUnit *unit,
BackendError err;
switch (var->kind) {
VariableKindDeclaration:
case VariableKindDeclaration:
err = impl_decl(unit, builder, scope, &var->impl.declaration, var->name);
break;
VariableKindDefinition:
case VariableKindDefinition:
err = impl_def(unit, builder, scope, &var->impl.definiton, var->name);
break;
default:
@ -322,28 +370,31 @@ BackendError impl_var(LLVMBackendCompileUnit *unit,
return err;
}
BackendError impl_stmt(LLVMBackendCompileUnit *unit, LLVMBuilderRef builder, LLVMLocalScope *scope, Statement *stmt) {
BackendError impl_stmt(LLVMBackendCompileUnit *unit, LLVMBuilderRef builder, LLVMLocalScope *scope, Statement *stmt, LLVMBasicBlockRef* llvm_start_block, LLVMBasicBlockRef* llvm_end_block) {
assert(stmt != NULL);
DEBUG("implementing statement: %ld", stmt->kind);
BackendError err;
switch (stmt->kind) {
StatementKindAssignment:
case StatementKindAssignment:
err = impl_assign_stmt(unit, builder, scope, &stmt->impl.assignment);
break;
StatementKindBranch:
err = impl_branch(unit, builder, scope, &stmt->impl.branch);
case StatementKindBranch:
err = impl_branch(unit, builder, scope, llvm_start_block, llvm_end_block, &stmt->impl.branch);
break;
StatementKindDeclaration:
StatementKindDefinition:
case StatementKindDeclaration:
case StatementKindDefinition:
err = impl_var(unit, builder, scope, stmt->impl.variable);
break;
StatementKindWhile:
err = impl_while(unit, builder, scope, &stmt->impl.whileLoop);
case StatementKindWhile:
err = impl_while(unit, builder, scope, llvm_start_block, llvm_end_block, &stmt->impl.whileLoop);
break;
StatementKindFunctionCall:
case StatementKindFunctionCall:
err = impl_func_call(unit, builder, scope, &stmt->impl.call);
break;
default:
err = new_backend_impl_error(Implementation, NULL, "Unexpected statement kind");
break;
}
return err;
@ -351,7 +402,10 @@ BackendError impl_stmt(LLVMBackendCompileUnit *unit, LLVMBuilderRef builder, LLV
BackendError impl_block(LLVMBackendCompileUnit *unit,
LLVMBuilderRef builder, LLVMFuncScope *scope,
LLVMBasicBlockRef* llvm_start_block,
LLVMBasicBlockRef* llvm_end_block,
const Block *block) {
DEBUG("Implementing function block...");
BackendError err = SUCCESS;
LLVMLocalScope *function_entry_scope = malloc(sizeof(LLVMLocalScope));
@ -359,8 +413,7 @@ BackendError impl_block(LLVMBackendCompileUnit *unit,
function_entry_scope->vars = g_hash_table_new(g_str_hash, g_str_equal);
function_entry_scope->parent_scope = NULL;
LLVMBasicBlockRef llvm_block = NULL;
err = impl_basic_block(unit, builder, function_entry_scope, block, &llvm_block);
err = impl_basic_block(unit, builder, function_entry_scope, block, llvm_start_block, llvm_end_block);
delete_local_scope(function_entry_scope);

5
src/llvm/llvm-ir/stmt.h
View File

@ -9,8 +9,11 @@
BackendError impl_block(LLVMBackendCompileUnit *unit,
LLVMBuilderRef builder, LLVMFuncScope *scope,
LLVMBasicBlockRef* llvm_start_block,
LLVMBasicBlockRef* llvm_end_block,
const Block *block);
BackendError impl_stmt(LLVMBackendCompileUnit *unit, LLVMBuilderRef builder, LLVMLocalScope *scope, Statement *stmt);
BackendError impl_stmt(LLVMBackendCompileUnit *unit, LLVMBuilderRef builder, LLVMLocalScope *scope, Statement *stmt,
LLVMBasicBlockRef *llvm_start_block, LLVMBasicBlockRef *llvm_end_block);
#endif // LLVM_BACKEND_STMT_H

2
src/llvm/llvm-ir/types.c
View File

@ -96,7 +96,7 @@ BackendError impl_primtive_type(LLVMBackendCompileUnit* unit,
BackendError impl_integral_type(LLVMBackendCompileUnit* unit, Scale scale,
LLVMTypeRef* llvm_type) {
size_t bits = (int)(4 * scale) * BITS_PER_BYTE;
size_t bits = (int)(BASE_BYTES * scale) * BITS_PER_BYTE;
DEBUG("implementing integral type of size: %ld", bits);
LLVMTypeRef integral_type = LLVMIntTypeInContext(unit->context, bits);

8
src/llvm/llvm-ir/variables.c
View File

@ -120,3 +120,11 @@ BackendError impl_global_variables(LLVMBackendCompileUnit* unit,
return err;
}
LLVMValueRef get_global_variable(LLVMGlobalScope* scope, char* name) {
if (g_hash_table_contains(scope->variables, name)) {
return g_hash_table_lookup(scope->variables, name);
}
return NULL;
}

2
src/llvm/llvm-ir/variables.h
View File

@ -12,4 +12,6 @@ BackendError impl_global_variables(LLVMBackendCompileUnit* unit,
LLVMGlobalScope* scope,
GHashTable* variables);
LLVMValueRef get_global_variable(LLVMGlobalScope* scope, char* name);
#endif // LLVM_BACKEND_VARIABLES_H_

6
src/llvm/parser.c
View File

@ -75,7 +75,7 @@ BackendError emit_module_to_file(LLVMBackendCompileUnit* unit,
filename = g_build_filename(config->archive_directory, basename, NULL);
break;
case LLVMObjectFile:
basename = g_strjoin("", config->name, "o", NULL);
basename = g_strjoin(".", config->name, "o", NULL);
filename = g_build_filename(config->archive_directory, basename, NULL);
break;
default:
@ -83,6 +83,10 @@ BackendError emit_module_to_file(LLVMBackendCompileUnit* unit,
"invalid codegen file");
}
// TODO: add custom link libraries
INFO("export to file: %s", filename);
if (LLVMTargetMachineEmitToFile(target_machine, unit->module, filename,
file_type, &error) != 0) {
ERROR("failed to emit code: %s", error);

0
src/set/types.c
View File