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#include "mcc/tac.h"
#include "mcc/tac_print.h"
#include "mcc/symbol_table.h"
struct mcc_assembly_offset *find_var(char *temp, struct mcc_asm_gen_container *asm_container) {
struct mcc_assembly_offset *a_offset = NULL;
for (int i = 0; i < asm_container -> variable_offsets -> size; i++) {
struct mcc_assembly_offset *ao = (struct mcc_assembly_offset *) asm_container -> variable_offsets -> arr[i];
// printf("%s %s\n", temp, ao -> temporary);
if(ao->temporary !=NULL){
if (strcmp(ao->temporary, temp) == 0) {
a_offset = ao;
break;
}
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//TODO get vars_count of function to compute stack size
// void mcc_get_function_size(struct mcc_tac *tac, int *n_local_vars,
// int *n_statements, int *return_found)
// {
// for(int i = 0; i < tac->tac_entries->size; i++) {
// struct mcc_tac_entry *entry = tac->tac_entries->arr[i];
// do{
// switch (entry->tac_op) {
// (*n_statements)++;
// case MCC_TAC_CALL:
// (*n_local_vars)++;
// break;
// /* LITERALS */
// case MCC_TAC_BOOL_LITERAL:
// case MCC_TAC_INT_LITERAL:
// case MCC_TAC_FLOAT_LITERAL:
// case MCC_TAC_STRING_LITERAL:
// case MCC_TAC_VARIABLE_DECLARATION:
// (*n_local_vars)++;
// break;
// /* ARRAYS */
// case MCC_TAC_ARR_DECL:
// (*n_local_vars) += entry->arg2;
// (*n_local_vars)++; // add array address
// break;
// default:
// break;
// }
// }
// while (entry->tac_op != MCC_TAC_FUNCTION_START);
// }
// }
int mcc_compute_stack(int variable_size)
{
int stack_size = variable_size * 4;
if (stack_size % 16 != 0) {
stack_size += (16 - stack_size % 16);
}
return stack_size;
}
void asm_gen_function_start(FILE *out, char* function_name) {
fprintf(out, ".global %s\n",function_name);
fprintf(out, ".type %s, @function\n",function_name);
fprintf(out, "%s:\n", function_name);
fprintf(out, "\tpushl\t(%%ebp)\n");
fprintf(out, "\tmovl\t%%esp, %%ebp\n");
//TODO add correct stack size
fprintf(out, "\tsubl\t$64, %%esp\n");
}
void asm_gen_function_end_no_return(FILE *out) {
fprintf(out, "\tnop\n");
fprintf(out, "\tpopl\t%%ebp\n");
fprintf(out, "\tret\n");
}
void asm_gen_function_end_with_return(FILE *out, struct mcc_tac_entry *te, struct mcc_asm_gen_container *asm_container) {
struct mcc_assembly_offset *ao = find_var(te -> result, asm_container);
if(te->tac_op == MCC_TAC_FLOAT){
fprintf(out, "\tflds\t%d(%%ebp)\n", ao -> offset);
}else{
fprintf(out, "\tmovl\t%d(%%ebp), %%eax\n", ao -> offset);
}
} else {
fprintf(out, "\tnop\n");
}
fprintf(out, "\tleave\n");
fprintf(out, "\tret\n");
}
void asm_gen_assignment_int(FILE *out, struct mcc_tac_entry *te, struct mcc_asm_gen_container *asm_container) {
mcc_assembly_add_offset_variable(asm_container, te);
fprintf(out, "\tmovl\t$%s, %d(%%ebp)\n", te -> arg1, mcc_assembly_get_current_offset(asm_container));
void asm_gen_assignment_bool(FILE *out, struct mcc_tac_entry *te, struct mcc_asm_gen_container *asm_container) {
mcc_assembly_add_offset_variable(asm_container, te);
if(strcmp("true",te->arg1) == 0){
fprintf(out, "\tmovl $1, \t%d(%%ebp)\n", mcc_assembly_get_current_offset(asm_container));
fprintf(out, "\tmovl $0, \t%d(%%ebp)\n", mcc_assembly_get_current_offset(asm_container));
}
}
void asm_gen_assignment_string(FILE *out, struct mcc_tac_entry *te, struct mcc_asm_gen_container *asm_container) {
mcc_assembly_add_offset_variable(asm_container, te);
te->arg1[strlen(te->arg1) - 2] = '\0';
// fprintf(out, "\t.LC%d:\n", asm_container->labelCounter);
// fprintf(out, "\t .string \"%s\"\n", te->arg1 + 2);
mcc_assembly_add_constant(asm_container,MCC_ASM_CONST_STRING,te->arg1 + 2);
fprintf(out, "\tmovl\t$.LC%d, %d(%%ebp)\n", asm_container->labelCounter++, mcc_assembly_get_current_offset(asm_container));
}
void asm_gen_assignment_float(FILE *out, struct mcc_tac_entry *te, struct mcc_asm_gen_container *asm_container) {
mcc_assembly_add_offset_variable(asm_container, te);
// fprintf(out, "\t.LC%d:\n", asm_container->labelCounter);
// fprintf(out, "\t .long %s\n", te->arg1);
fprintf(out,"\tflds .LC%d\n", asm_container->labelCounter++);
mcc_assembly_add_constant(asm_container,MCC_ASM_CONST_FLOAT,te->arg1);
fprintf(out, "\tfstps %d(%%ebp)\n",mcc_assembly_get_current_offset(asm_container));
}
void asm_gen_param(FILE *out, struct mcc_tac_entry *te, struct mcc_asm_gen_container *asm_container) {
fprintf(out, "\tpushl\t%d(%%ebp)\n", mcc_assembly_get_current_offset(asm_container));
}
void asm_gen_param_array(FILE *out, struct mcc_tac_entry *te, struct mcc_asm_gen_container *asm_container) {
fprintf(out, "\tleal\t%d(%%ebp), %%eax\n", mcc_assembly_get_current_offset(asm_container));
fprintf(out, "\tpushl\t%%eax\n");
}
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void asm_gen_binary_int_op(FILE *out, struct mcc_tac_entry *te, struct mcc_asm_gen_container *asm_container)
{
fprintf(out, "\tmovl\t%d(%%ebp), %%eax\n", mcc_assembly_get_current_offset(asm_container));
switch (te->tac_op)
{
case MCC_TAC_PLUS_INT:
fprintf(out, "\taddl\t%d(%%ebp), %%eax\n", mcc_assembly_get_current_offset(asm_container));
break;
case MCC_TAC_MINUS_INT_BIN:
fprintf(out, "\tsubl\t%d(%%ebp), %%eax\n",mcc_assembly_get_current_offset(asm_container));
break;
case MCC_TAC_MUL_INT:
fprintf(out, "\timull\t%d(%%ebp), %%eax\n", mcc_assembly_get_current_offset(asm_container));
break;
case MCC_TAC_DIV_INT:
fprintf(out, "\tcltd\n");
fprintf(out, "\tidivl\t%d(%%ebp)\n", mcc_assembly_get_current_offset(asm_container));
break;
default:
fprintf(out,"\tnop\n");
break;
}
mcc_assembly_add_offset_variable(asm_container, te);
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", mcc_assembly_get_current_offset(asm_container));
}
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void asm_gen_binary_float_op(FILE *out, struct mcc_tac_entry *te, struct mcc_asm_gen_container *asm_container)
{
fprintf(out, "\tflds\t%d(%%ebp)\n", mcc_assembly_get_current_offset(asm_container));
switch (te->tac_op)
{
case MCC_TAC_PLUS_FLOAT:
fprintf(out, "\tfadds\t%d(%%ebp)\n", mcc_assembly_get_current_offset(asm_container));
break;
case MCC_TAC_MINUS_FLOAT_BIN:
fprintf(out, "\tfsubs\t%d(%%ebp)\n",mcc_assembly_get_current_offset(asm_container));
break;
case MCC_TAC_MUL_FLOAT:
fprintf(out, "\tfmuls\t%d(%%ebp)\n", mcc_assembly_get_current_offset(asm_container));
break;
case MCC_TAC_DIV_FLOAT:
fprintf(out, "\tfdivs\t%d(%%ebp)\n", mcc_assembly_get_current_offset(asm_container));
break;
default:
fprintf(out,"\tnop\n");
break;
}
mcc_assembly_add_offset_variable(asm_container, te);
fprintf(out, "\tfstps\t%d(%%ebp)\n", mcc_assembly_get_current_offset(asm_container));
}
void asm_gen_relation_int_op(FILE *out, struct mcc_tac_entry *te, struct mcc_asm_gen_container *asm_container)
{
struct mcc_assembly_offset *arg1_offset = find_var(te -> arg1, asm_container);
struct mcc_assembly_offset *arg2_offset = find_var(te -> arg2, asm_container);
struct mcc_assembly_offset *result_offset = find_var(te -> result, asm_container);
//TODO offset from te->arg1 lookup
if(arg1_offset != NULL){
fprintf(out, "\tmovl\t%d(%%ebp), %%edx\n",
arg1_offset->offset);
}
//TODO offset from te->arg2 lookup
if(arg2_offset != NULL){
fprintf(out, "\tcmpl\t%d(%%ebp), %%edx\n",
arg2_offset->offset);
}
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switch (te->tac_op)
{
case MCC_TAC_EQ:
fprintf(out, "\tsete\t%%al\n");
break;
case MCC_TAC_GT:
fprintf(out, "\tsetg\t%%al\n");
break;
case MCC_TAC_GTEQ:
fprintf(out, "\tsetge\t%%al\n");
break;
case MCC_TAC_LT:
fprintf(out, "\tsetl\t%%al\n");
break;
case MCC_TAC_LTEQ:
fprintf(out, "\tsetle\t%%al\n");
break;
case MCC_TAC_NEQ:
fprintf(out, "\tsetne\t%%al\n");
break;
default:
fprintf(out,"\tnop\n");
break;
}
fprintf(out, "\tmovzbl\t%%al, %%edx\n");
mcc_assembly_add_offset_variable(asm_container, te);
if(result_offset != NULL){
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", result_offset->offset);
}
}
void asm_gen_relation_float_op(FILE *out, struct mcc_tac_entry *te, struct mcc_asm_gen_container *asm_container)
{
struct mcc_assembly_offset *arg1_offset = find_var(te -> arg1, asm_container);
struct mcc_assembly_offset *arg2_offset = find_var(te -> arg2, asm_container);
//TODO offset from te->arg2 lookup
// if(arg1_offset != NULL){
// fprintf(out, "\tflds\t%d(%%ebp)\n",
// arg2_offset->offset);
// }
// //TODO offset from te->arg1 lookup
// if(arg2_offset != NULL){
// fprintf(out, "\tflds\t%d(%%ebp)\n",
// arg1_offset->offset);
// }
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fprintf(out, "\tfcomip\t%%st(1), %%st\n");
fprintf(out, "\tfstp\t%%st(0)\n");
switch (te->tac_op)
{
case MCC_TAC_EQ_FLOAT:
fprintf(out, "\tsete\t%%al\n");
break;
case MCC_TAC_GT_FLOAT:
fprintf(out, "\tseta\t%%al\n");
break;
case MCC_TAC_GTEQ_FLOAT:
fprintf(out, "\tsetae\t%%al\n");
break;
case MCC_TAC_LT_FLOAT:
fprintf(out, "\tsetb\t%%al\n");
break;
case MCC_TAC_LTEQ_FLOAT:
fprintf(out, "\tsetbe\t%%al\n");
break;
case MCC_TAC_NEQ_FLOAT:
fprintf(out, "\tsetne\t%%al\n");
break;
default:
fprintf(out,"\tnop\n");
break;
}
fprintf(out, "\tmovzbl\t%%al, %%edx\n");
mcc_assembly_add_offset_variable(asm_container, te);
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", mcc_assembly_get_current_offset(asm_container));
}
void asm_gen_param_pop(FILE *out, struct mcc_tac_entry *te, struct mcc_asm_gen_container *asm_container)
{
fprintf(out, "\tmovl\t%d(%%ebp), %%eax\n", mcc_assembly_get_current_offset(asm_container));
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", mcc_assembly_get_current_offset(asm_container));
// increase parameter offset
mcc_assembly_add_offset_variable(asm_container, te);
}
void asm_gen_param_pop_array(FILE *out, struct mcc_tac_entry *te, struct mcc_asm_gen_container *asm_container)
{
// increase parameter offset
mcc_assembly_add_offset_variable(asm_container, te);
}
void asm_gen_load(FILE *out, struct mcc_tac_entry *te, struct mcc_asm_gen_container *asm_container)
{
struct mcc_assembly_offset *arg1_offset = find_var(te -> arg1, asm_container);
struct mcc_assembly_offset *arg2_offset = find_var(te -> arg2, asm_container);
fprintf(out, "\tmovl\t%d(%%ebp), %%edx\n", arg1_offset->offset);
fprintf(out, "\tmovl\t%d(%%ebp), %%ecx\n", arg2_offset->offset);
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fprintf(out, "\tmovl\t0(%%ecx, %%edx, %d), %%eax\n", 4);
}
void asm_gen_load_float(FILE *out, struct mcc_tac_entry *te, struct mcc_asm_gen_container *asm_container)
{
struct mcc_assembly_offset *arg1_offset = find_var(te -> arg1, asm_container);
struct mcc_assembly_offset *arg2_offset = find_var(te -> arg2, asm_container);
fprintf(out, "\tmovl\t%d(%%ebp), %%edx\n", arg1_offset->offset);
fprintf(out, "\tmovl\t%d(%%ebp), %%ecx\n", arg2_offset->offset);
fprintf(out, "\tflds\t%d(%%ebp, %%edx, %d)\n", arg1_offset->offset, 8);
}
void asm_gen_store(FILE *out, struct mcc_tac_entry *te, struct mcc_asm_gen_container *asm_container)
{
struct mcc_assembly_offset *arg1_offset = find_var(te -> arg1, asm_container);
struct mcc_assembly_offset *arg2_offset = find_var(te -> arg2, asm_container);
fprintf(out, "\tmovl\t%d(%%ebp), %%eax\n", arg1_offset->offset);
fprintf(out, "\tmovl\t%d(%%ebp), %%edx\n", arg2_offset->offset);
fprintf(out, "\tmovl\t%d(%%ebp), %%ecx\n", mcc_assembly_get_current_offset(asm_container));
fprintf(out, "\tmovl\t%%eax, 0(%%ecx, %%edx, %d)\n", 4);
}
void asm_gen_store_float(FILE *out, struct mcc_tac_entry *te, struct mcc_asm_gen_container *asm_container)
{
struct mcc_assembly_offset *arg1_offset = find_var(te -> arg1, asm_container);
struct mcc_assembly_offset *arg2_offset = find_var(te -> arg2, asm_container);
fprintf(out, "\tflds\t%d(%%ebp)\n", arg1_offset->offset);
fprintf(out, "\tmovl\t%d(%%ebp), %%edx\n", arg2_offset->offset);
fprintf(out, "\tmovl\t%d(%%ebp), %%ecx\n", mcc_assembly_get_current_offset(asm_container));
fprintf(out, "\tfstps\t0(%%ecx, %%edx, %d)\n", 8);
}
void mcc_asm_gen(FILE *out, struct mcc_tac *tac, struct mcc_asm_gen_container *asm_container) {
for(int i = 0; i < tac->tac_entries->size; i++) {
struct mcc_tac_entry *entry = tac->tac_entries->arr[i];
switch (entry -> tac_op) {
case MCC_TAC_FUNCTION_START:
asm_container -> variable_offsets = mcc_create_dynamic_array(20);
asm_container->labelCounter = 0;
asm_gen_function_start(out, entry -> arg2);
break;
case MCC_TAC_FUNCTION_END:
asm_gen_function_end_no_return(out);
break;
case MCC_TAC_LABEL :
fprintf(out, ".%s:\n",entry->result);
break;
case MCC_TAC_JMP :
fprintf(out, "\tjmp\t.%s\n", entry->result);
break;
case MCC_TAC_JMP_FALSE :
fprintf(out, "\tcmpl\t$0, %d(%%ebp)\n", mcc_assembly_get_current_offset(asm_container));
fprintf(out, "\tje\t.%s\n", entry->result);
break;
case MCC_TAC_RETURN:
asm_gen_function_end_with_return(out, entry, asm_container);
break;
asm_gen_assignment_int(out, entry, asm_container);
break;
case MCC_TAC_PLUS_INT:
case MCC_TAC_MINUS_INT_BIN:
case MCC_TAC_MUL_INT:
case MCC_TAC_DIV_INT:
asm_gen_binary_int_op(out, entry, asm_container);
break;
case MCC_TAC_PLUS_FLOAT:
case MCC_TAC_MINUS_FLOAT_BIN:
case MCC_TAC_MUL_FLOAT:
case MCC_TAC_DIV_FLOAT:
asm_gen_binary_float_op(out, entry, asm_container);
break;
case MCC_TAC_EQ:
case MCC_TAC_GT:
case MCC_TAC_GTEQ:
case MCC_TAC_LT:
case MCC_TAC_LTEQ:
case MCC_TAC_NEQ:
asm_gen_relation_int_op(out, entry, asm_container);
break;
case MCC_TAC_EQ_FLOAT:
case MCC_TAC_GT_FLOAT:
case MCC_TAC_GTEQ_FLOAT:
case MCC_TAC_LT_FLOAT:
case MCC_TAC_LTEQ_FLOAT:
case MCC_TAC_NEQ_FLOAT:
asm_gen_relation_float_op(out, entry, asm_container);
break;
// push
case MCC_TAC_PARAM_BOOL:
case MCC_TAC_PARAM_INT:
case MCC_TAC_PARAM_FLOAT:
case MCC_TAC_PARAM_STRING:
asm_gen_param(out,entry,asm_container);
break;
case MCC_TAC_PARAM_BOOL_ARR:
case MCC_TAC_PARAM_INT_ARR:
case MCC_TAC_PARAM_FLOAT_ARR:
case MCC_TAC_PARAM_STRING_ARR:
asm_gen_param_array(out,entry, asm_container);
break;
//pop
case MCC_TAC_PARAM_POP_BOOL:
case MCC_TAC_PARAM_POP_INT:
case MCC_TAC_PARAM_POP_FLOAT:
case MCC_TAC_PARAM_POP_STRING:
asm_gen_param_pop(out, entry, asm_container);
break;
case MCC_TAC_PARAM_POP_BOOL_ARR:
case MCC_TAC_PARAM_POP_INT_ARR:
case MCC_TAC_PARAM_POP_FLOAT_ARR:
case MCC_TAC_PARAM_POP_STRING_ARR:
asm_gen_param_pop_array(out, entry, asm_container);
break;
case MCC_TAC_ARR_DECL :
// set stack offset size of pointer * elements
break;
case MCC_TAC_VARIABLE_DECLARATION:
mcc_assembly_add_offset_variable(asm_container, entry);
break;
//copy
// case MCC_TAC_INT:
// case MCC_TAC_BOOL:
// case MCC_TAC_STRING:
// break;
// case MCC_TAC_FLOAT:
break;
//load
case MCC_TAC_LOAD_BOOL:
case MCC_TAC_LOAD_INT:
case MCC_TAC_LOAD_STRING:
asm_gen_load(out, entry, asm_container);
break;
case MCC_TAC_LOAD_FLOAT:
asm_gen_load_float(out, entry, asm_container);
break;
//store
case MCC_TAC_STORE_BOOL:
case MCC_TAC_STORE_INT:
case MCC_TAC_STORE_STRING:
asm_gen_store(out, entry, asm_container);
break;
case MCC_TAC_STORE_FLOAT:
asm_gen_store_float(out, entry, asm_container);
break;
for(int i = 0; i < asm_container->constant_count; i++){
fprintf(out, ".LC%d:\n", i);
struct mcc_asm_constant *temp_const = asm_container->constants[i];
if(temp_const->const_type == MCC_ASM_CONST_FLOAT){
fprintf(out, "\t.float\t%s\n", temp_const->const_value);
}else{
fprintf(out, "\t .string \"%s\"\n", temp_const->const_value);
}
}
}
int mcc_asm_gen_creator(FILE *out, struct mcc_tac *tac, struct mcc_symbol_table *st) {
struct mcc_asm_gen_container *ac = malloc(sizeof(*ac));
ac -> variable_offsets = mcc_create_dynamic_array(20);
ac->constants_size = 0;
ac->constant_count = 0;
ac->constants = NULL;
mcc_asm_gen(out, tac, ac);
return 0;
}
void mcc_invoke_gcc(char *file_name, char *output)
{
char *gcc_arguments[6];
gcc_arguments[0] = "gcc";
gcc_arguments[1] = "-m32";
gcc_arguments[2] = "../src/mc_builtins.c";
gcc_arguments[3] = file_name;
gcc_arguments[4] = "-o";
gcc_arguments[5] = output;
gcc_arguments[6] = NULL;
{
int stack_size = variable_size * VARIABLE_SIZE;
if (stack_size % 16 != 0) {
stack_size += (16 - stack_size % 16);
}
return stack_size;
void mcc_asm_add_constant(struct mcc_asm_constant **entries, enum mcc_asm_contant_type type, int *counter, void *value ){
struct mcc_asm_constant *add_const = (struct mcc_asm_constant *)malloc(sizeof(*add_const));
add_const->const_type = type;
add_const->next = NULL;
add_const->number = ++(*counter);
if(type == MCC_ASM_CONST_STRING){
add_const->s_value = (char *) value;
} else if (type == MCC_ASM_CONST_FLOAT){
add_const->f_value = *((double *)value);
}
if (*entries == NULL) {
*entries = add_const;
} else {
struct mcc_asm_constant *constant = *entries;
while (constant->next != NULL) {
constant = constant->next;
}
constant->next = add_const;
}
}
/*void mcc_asm_print_constant(FILE *out, struct mcc_asm_constant *constant)
{
if (constant == NULL) {
return;
}
fprintf(out, "\t.section\t.rodata\n");
if (constant == NULL) {
struct mcc_asm_constant *current = constant;
while (current != NULL) {
fprintf(out, ".LC%d:\n", current->number);
switch (current->const_type) {
case MCC_ASM_CONST_FLOAT:
fprintf(out, "\t.float\t%lf\n", current->f_value);
break;
case MCC_ASM_CONST_STRING:
fprintf(out, "\t.string\t\"%s\"\n", current->s_value);
break;
default:
break;
}
current = current->next;
}
/*
void mcc_asm_gen(FILE *out, struct mcc_tac *tac) {
int const_count = 0;
struct mcc_asm_constant *constants = NULL;
for(int i = 0; i < tac->tac_entries->size; i++)
{
struct mcc_tac_entry *entry = tac->tac_entries->arr[i];
char *arg1 = entry->arg1;
//TODO calculate offset and save temp offset
switch (entry->tac_op)
{
case MCC_TAC_FUNCTION_START:
fprintf(out, "\t.globl %s\n", arg1);
fprintf(out, "\t.type %s, @function\n", arg1);
fprintf(out, "%s:\n", arg1);
fprintf(out, "\tpushl\t%%ebp\n");
fprintf(out, "\tmovl\t%%esp, %%ebp\n");
case MCC_TAC_CALL:
fprintf(out, "\tcall\t%s\n", arg1);
break;
// unary
case MCC_TAC_MINUS_INT_UN:
fprintf(out, "\tmovl\t%d(%%ebp), %%eax\n", offset);
fprintf(out, "\tnegl\t%%eax\n");
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", offset);
break;
case MCC_TAC_MINUS_FLOAT_UN:
break;
fprintf(out, "\tmovl\t%d(%%ebp), %%eax\n", arg1->offset);
fprintf(out, "\taddl\t%d(%%ebp), %%eax\n", arg2->offset);
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", result->offset);
fprintf(out, "\tmovl\t%d(%%ebp), %%eax\n", arg1->offset);
fprintf(out, "\tsubl\t%d(%%ebp), %%eax\n", arg2->offset);
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", result->offset);
fprintf(out, "\tmovl\t%d(%%ebp), %%eax\n", arg1->offset);
fprintf(out, "\timull\t%d(%%ebp), %%eax\n", arg2->offset);
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", result->offset);
break;
case MCC_TAC_DIV_INT:
fprintf(out, "\tmovl\t%d(%%ebp), %%eax\n", arg1->offset);
fprintf(out, "\tcltd\n");
fprintf(out, "\tidivl\t%d(%%ebp)\n", arg2->offset);
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", result->offset);
break;
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fprintf(out, "\tflds\t%d(%%ebp)\n", arg1->offset);
fprintf(out, "\tfadds\t%d(%%ebp)\n", arg2->offset);
fprintf(out, "\tfstps\t%d(%%ebp)\n", result->offset);
break;
case MCC_TAC_MINUS_FLOAT_BIN:
fprintf(out, "\tflds\t%d(%%ebp)\n", arg1->offset);
fprintf(out, "\tfsubs\t%d(%%ebp)\n", arg2->offset);
fprintf(out, "\tfstps\t%d(%%ebp)\n", result->offset);
break;
case MCC_TAC_MUL_FLOAT:
fprintf(out, "\tflds\t%d(%%ebp)\n", arg1->offset);
fprintf(out, "\tfmuls\t%d(%%ebp)\n", arg2->offset);
fprintf(out, "\tfstps\t%d(%%ebp)\n", result->offset);
break;
case MCC_TAC_DIV_FLOAT:
fprintf(out, "\tflds\t%d(%%ebp)\n", arg1->offset);
fprintf(out, "\tfdivs\t%d(%%ebp)\n", arg2->offset);
fprintf(out, "\tfstps\t%d(%%ebp)\n", result->offset);
break;
case MCC_TAC_NOT_BOOL:
fprintf(out, "\txorl\t$1, %%edx\n");
break;
case MCC_TAC_AND:
fprintf(out, "\tmovl\t%d(%%ebp), %%eax\n", arg1->offset);
fprintf(out, "\tandl\t%d(%%ebp), %%edx\n", arg2->offset);
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", result->offset);
break;
case MCC_TAC_OR:
fprintf(out, "\tmovl\t%d(%%ebp), %%eax\n", arg1->offset);
fprintf(out, "\torl\t%d(%%ebp), %%edx\n", arg2->offset);
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", result->offset);
break;
case MCC_TAC_EQ:
fprintf(out, "\tmovl\t%d(%%ebp), %%eax\n", arg1->offset);
fprintf(out, "\tcmpl\t%d(%%ebp), %%eax\n", arg2->offset);
fprintf(out, "\tsete\t%%al\n");
fprintf(out, "\tmovzbl\t%%al, %%eax\n");
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", result->offset);
break;
case MCC_TAC_NEQ:
fprintf(out, "\tmovl\t%d(%%ebp), %%eax\n", arg1->offset);
fprintf(out, "\tcmpl\t%d(%%ebp), %%eax\n", arg2->offset);
fprintf(out, "\tsetne\t%%al\n");
fprintf(out, "\tmovzbl\t%%al, %%eax\n");
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", result->offset);
break;
case MCC_TAC_GT:
fprintf(out, "\tmovl\t%d(%%ebp), %%eax\n", arg1->offset);
fprintf(out, "\tcmpl\t%d(%%ebp), %%eax\n", arg2->offset);
fprintf(out, "\tsetg\t%%al\n");
fprintf(out, "\tmovzbl\t%%al, %%eax\n");
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", result->offset);
break;
case MCC_TAC_LT:
fprintf(out, "\tmovl\t%d(%%ebp), %%eax\n", arg1->offset);
fprintf(out, "\tcmpl\t%d(%%ebp), %%eax\n", arg2->offset);
fprintf(out, "\tsetl\t%%al\n");
fprintf(out, "\tmovzbl\t%%al, %%eax\n");
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", result->offset);
break;
case MCC_TAC_LTEQ:
fprintf(out, "\tmovl\t%d(%%ebp), %%eax\n", arg1->offset);
fprintf(out, "\tcmpl\t%d(%%ebp), %%eax\n", arg2->offset);
fprintf(out, "\tsetle\t%%al\n");
fprintf(out, "\tmovzbl\t%%al, %%eax\n");
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", result->offset);
break;
case MCC_TAC_GTEQ:
fprintf(out, "\tmovl\t%d(%%ebp), %%eax\n", arg1->offset);
fprintf(out, "\tcmpl\t%d(%%ebp), %%eax\n", arg2->offset);
fprintf(out, "\tsetge\t%%al\n");
fprintf(out, "\tmovzbl\t%%al, %%eax\n");
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", result->offset);
break;
case MCC_TAC_LT_FLOAT:
fprintf(out, "\tflds\t%d(%%ebp)\n", arg2->offset);
fprintf(out, "\tflds\t%d(%%ebp)\n", arg1->offset);
fprintf(out, "\tfcomip\t%%st(1), %%st\n");
fprintf(out, "\tfstp\t%%st(0)\n");
fprintf(out, "\tsetb\t%%al\n");
fprintf(out, "\tmovzbl\t%%al, %%eax\n");
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", result->offset);
break;
case MCC_TAC_LTEQ_FLOAT:
fprintf(out, "\tflds\t%d(%%ebp)\n", arg2->offset);
fprintf(out, "\tflds\t%d(%%ebp)\n", arg1->offset);
fprintf(out, "\tfcomip\t%%st(1), %%st\n");
fprintf(out, "\tfstp\t%%st(0)\n");
fprintf(out, "\tsetbe\t%%al\n");
fprintf(out, "\tmovzbl\t%%al, %%eax\n");
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", result->offset);
break;
case MCC_TAC_GT_FLOAT:
fprintf(out, "\tflds\t%d(%%ebp)\n", arg2->offset);
fprintf(out, "\tflds\t%d(%%ebp)\n", arg1->offset);
fprintf(out, "\tfcomip\t%%st(1), %%st\n");
fprintf(out, "\tfstp\t%%st(0)\n");
fprintf(out, "\tseta\t%%al\n");
fprintf(out, "\tmovzbl\t%%al, %%eax\n");
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", result->offset);
break;
case MCC_TAC_GTEQ_FLOAT:
fprintf(out, "\tflds\t%d(%%ebp)\n", arg2->offset);
fprintf(out, "\tflds\t%d(%%ebp)\n", arg1->offset);
fprintf(out, "\tfcomip\t%%st(1), %%st\n");
fprintf(out, "\tfstp\t%%st(0)\n");
fprintf(out, "\tsetae\t%%al\n");
fprintf(out, "\tmovzbl\t%%al, %%eax\n");
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", result->offset);
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case MCC_TAC_EQ_FLOAT:
fprintf(out, "\tflds\t%d(%%ebp)\n", arg2->offset);
fprintf(out, "\tflds\t%d(%%ebp)\n", arg1->offset);
fprintf(out, "\tfcomip\t%%st(1), %%st\n");
fprintf(out, "\tfstp\t%%st(0)\n");
fprintf(out, "\tsete\t%%al\n");
fprintf(out, "\tmovzbl\t%%al, %%eax\n");
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", result->offset);
break;
case MCC_TAC_EQ_BOOL:
fprintf(out, "\tmovl\t%d(%%ebp), %%eax\n", arg1->offset);
fprintf(out, "\tcmpl\t%d(%%ebp), %%eax\n", arg2->offset);
fprintf(out, "\tsete\t%%al\n");
fprintf(out, "\tmovzbl\t%%al, %%eax\n");
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", result->offset);
break;
case MCC_TAC_NEQ_FLOAT:
fprintf(out, "\tflds\t%d(%%ebp)\n", arg2->offset);
fprintf(out, "\tflds\t%d(%%ebp)\n", arg1->offset);
fprintf(out, "\tfcomip\t%%st(1), %%st\n");
fprintf(out, "\tfstp\t%%st(0)\n");
fprintf(out, "\tsetne\t%%al\n");
fprintf(out, "\tmovzbl\t%%al, %%eax\n");
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", result->offset);
break;
case MCC_TAC_NEQ_BOOL:
fprintf(out, "\tmovl\t%d(%%ebp), %%eax\n", arg1->offset);
fprintf(out, "\tcmpl\t%d(%%ebp), %%eax\n", arg2->offset);
fprintf(out, "\tsetne\t%%al\n");
fprintf(out, "\tmovzbl\t%%al, %%eax\n");
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", result->offset);
break;
// literal
//TODO parse arg1 to 0 or 1??
int bool_value = (strcmp(arg1, "true") == 0) ? 1 : 0;
fprintf(out, "\tmovl\t$%s, %d(%%ebp)\n",arg1, result->offset);
fprintf(out, "\tmovl\t$%s, %d(%%ebp)\n",arg1, result->offset);
mcc_asm_add_constant(&constants,MCC_ASM_CONST_STRING,&const_count, arg1 );
fprintf(out, "\tmovl\t$.LCONST%d, %d(%%ebp)\n", const_count,result->offset);
mcc_asm_add_constant(&constants,MCC_ASM_CONST_FLOAT,&const_count, arg1 );
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fprintf(out, "\tflds\t.LCONST%d\n", const_count);
fprintf(out, "\tfstps\t%d(%%ebp)\n", result->offset);
break;
// copy
case MCC_TAC_BOOL:
break;
case MCC_TAC_INT:
break;
case MCC_TAC_STRING:
break;
case MCC_TAC_FLOAT:
break;
// push
case MCC_TAC_PARAM_BOOL:
case MCC_TAC_PARAM_INT:
case MCC_TAC_PARAM_FLOAT:
case MCC_TAC_PARAM_STRING:
fprintf(out, "\tpushl\t%d(%%ebp)\n", arg1->offset);
break;
case MCC_TAC_PARAM_BOOL_ARR:
case MCC_TAC_PARAM_INT_ARR:
case MCC_TAC_PARAM_FLOAT_ARR:
case MCC_TAC_PARAM_STRING_ARR:
fprintf(out, "\tleal\t%d(%%ebp), %%eax\n", arg1->offset);
fprintf(out, "\tpushl\t%%eax\n");
break;
// pop
case MCC_TAC_PARAM_POP_BOOL:
case MCC_TAC_PARAM_POP_INT:
case MCC_TAC_PARAM_POP_FLOAT:
case MCC_TAC_PARAM_POP_STRING:
fprintf(out, "\tmovl\t%d(%%ebp), %%eax\n", param_offset);
fprintf(out, "\tmovl\t%%eax, %d(%%ebp)\n", result->offset);
//increase param offset
break;
case MCC_TAC_PARAM_POP_BOOL_ARR:
case MCC_TAC_PARAM_POP_INT_ARR:
case MCC_TAC_PARAM_POP_FLOAT_ARR:
case MCC_TAC_PARAM_POP_STRING_ARR:
//increase param offset
break;
// load
case MCC_TAC_LOAD_BOOL:
case MCC_TAC_LOAD_INT:
case MCC_TAC_LOAD_STRING:
fprintf(out, "\tmovl\t%d(%%ebp), %%edx\n", arg1->offset);
fprintf(out, "\tmovl\t%d(%%ebp), %%ecx\n", arg2->offset);
fprintf(out, "\tmovl\t0(%%ecx, %%edx, %d), %%eax\n", 4);
break;
case MCC_TAC_LOAD_FLOAT:
fprintf(out, "\tmovl\t%d(%%ebp), %%edx\n", arg1->offset);
fprintf(out, "\tmovl\t%d(%%ebp), %%ecx\n", arg2->offset);
fprintf(out, "\tflds\t%d(%%ebp, %%edx, %d)\n", arg1->offset, 4);
break;
// store
case MCC_TAC_STORE_BOOL:
case MCC_TAC_STORE_INT:
case MCC_TAC_STORE_STRING:
fprintf(out, "\tmovl\t%d(%%ebp), %%eax\n", arg1->offset);
fprintf(out, "\tmovl\t%d(%%ebp), %%edx\n", arg2->offset);
fprintf(out, "\tmovl\t%d(%%ebp), %%ecx\n", offset);
fprintf(out, "\tmovl\t%%eax, 0(%%ecx, %%edx, %d)\n", 4);
break;
case MCC_TAC_STORE_FLOAT:
fprintf(out, "\tflds\t%d(%%ebp)\n", arg1->offset);
fprintf(out, "\tmovl\t%d(%%ebp), %%edx\n", arg2->offset);
fprintf(out, "\tmovl\t%d(%%ebp), %%ecx\n", offset);
fprintf(out, "\tfstps\t0(%%ecx, %%edx, %d)\n", 4);
break;
// IR operations
case MCC_TAC_JMP :
fprintf(out, "\tjmp\t.%s\n", result + sizeof(char));
break;
case MCC_TAC_JMP_FALSE :
fprintf(out, "\tcmpl\t$0, %d(%%ebp)\n", arg1->offset);
fprintf(out, "\tje\t.%s\n", result + sizeof(char));
break;
case MCC_TAC_RETURN :
fprintf(out, "\tleave\n");
fprintf(out, "\tret\n");
break;
case MCC_TAC_ARR_DECL :
// set stack offset size of pointer * elements
break;
case MCC_TAC_LABEL :
fprintf(out, ".%s:\n", result + sizeof(char));
break;
case MCC_TAC_FUNCTION_END :
fprintf(out, "\tleave\n");
fprintf(out, "\tret\n");
mcc_asm_print_constant(out,constants);