diff options
| -rw-r--r-- | lib.s | 14 | ||||
| -rw-r--r-- | mips.c | 4 | ||||
| -rw-r--r-- | ssa.c | 6 |
3 files changed, 8 insertions, 16 deletions
@@ -14,7 +14,6 @@ _func_printf: addiu $12, $sp, 64 # arg_1 = t0 + 4 addiu $12, $12, 4 - sw $12, 16($sp) #arg # goto __L2 j __L2 __L1: @@ -25,10 +24,8 @@ __L1: beqz $13, __L20 # fmt_4 = fmt_1 + 1 addiu $8, $8, 1 - sw $8, 64($sp) #fmt # ch_4 = fmt_4[0] lb $9, 0($8) - sb $9, 12($sp) #ch # t5 = ch_4 == 100 li $3, 100 seq $13, $9, $3 @@ -73,7 +70,6 @@ __L8: __L10: # x_4 = arg_2[0] lw $10, 0($12) - sw $10, 4($sp) #x # t15 = x_4 == 0 li $3, 0 seq $11, $10, $3 @@ -82,24 +78,20 @@ __L10: # len_11 = 1 li $2, 1 move $11 $2 - sw $11, 8($sp) #len # goto __L15 j __L15 __L12: # len_8 = 0 li $2, 0 move $11 $2 - sw $11, 8($sp) #len # goto __L14 j __L14 __L13: # x_7 = x_6 / 10 li $3, 10 divu $10, $10, $3 - sw $10, 4($sp) #x # len_10 = len_9 + 1 addiu $11, $11, 1 - sw $11, 8($sp) #len __L14: # if (x_6) goto __L13 bnez $10, __L13 @@ -107,7 +99,6 @@ __L15: # len_5 = 4 - len_4 li $2, 4 subu $11, $2, $11 - sw $11, 8($sp) #len # goto __L17 j __L17 __L16: @@ -119,7 +110,6 @@ __L16: # len_7 = len_6 - 1 li $3, 1 subu $11, $11, $3 - sw $11, 8($sp) #len __L17: # if (len_6) goto __L16 bnez $11, __L16 @@ -131,11 +121,9 @@ __L17: jal _func___print_int # fmt_6 = fmt_4 + 2 addiu $8, $8, 2 - sw $8, 64($sp) #fmt __L19: # arg_4 = arg_2 + 4 addiu $12, $12, 4 - sw $12, 16($sp) #arg # goto __L21 j __L21 __L20: @@ -146,11 +134,9 @@ __L20: __L21: # fmt_3 = fmt_2 + 1 addiu $8, $8, 1 - sw $8, 64($sp) #fmt __L2: # ch_2 = fmt_1[0] lb $9, 0($8) - sb $9, 12($sp) #ch # if (ch_2) goto __L1 bnez $9, __L1 _ret_printf: @@ -92,7 +92,7 @@ void mips_store(int reg, COpr_t opr) { /* TODO: struct */ if (var->global) printf("\t%s $%d, _%s\n", l, reg, var->name); - else + else if (opr->reg == -1) printf("\t%s $%d, %d($sp)\t#%s\n", l, reg, var->start, var->name); } @@ -446,7 +446,7 @@ void mips_generate() { if (i->src1->reg != -1) { if (i->src1->kind == IMM) - printf("\tli$%d, %d\n", reg_v0, i->src1->info.imm); + printf("\tli $%d, %d\n", reg_v0, i->src1->info.imm); else { used_reg[i->src1->reg] = 1; @@ -1895,6 +1895,7 @@ void cinterv_union(COpr_t a, COpr_t b) { if (a == b) return; b->range = crange_merge(b->range, a->range); a->par = b; + b->mod |= a->mod; } void init_def() { @@ -2132,6 +2133,11 @@ void register_alloc() { colist_add(active, c); /* move cur to active */ } } + else if (cur->mod) /* may be referenced by a pointer */ + { + cur->reg = -1; /* assign a memory location to cur */ + free(c); /* and move cur to handled */ + } else { cur->reg = reg; /* cur.reg <- any register in f */ |