diff options
Diffstat (limited to 'gcc/regclass.c')
| -rw-r--r-- | gcc/regclass.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/gcc/regclass.c b/gcc/regclass.c index 1451f8a..75335b1 100644 --- a/gcc/regclass.c +++ b/gcc/regclass.c @@ -1007,7 +1007,8 @@ record_operand_costs (insn, op_costs, reg_pref) if (GET_CODE (recog_data.operand[i]) == MEM) record_address_regs (XEXP (recog_data.operand[i], 0), MODE_BASE_REG_CLASS (modes[i]), frequency * 2); - else if (constraints[i][0] == 'p') + else if (constraints[i][0] == 'p' + || EXTRA_ADDRESS_CONSTRAINT (constraints[i][0])) record_address_regs (recog_data.operand[i], MODE_BASE_REG_CLASS (modes[i]), frequency * 2); } @@ -1709,6 +1710,27 @@ record_reg_classes (n_alts, n_ops, ops, modes, #ifdef EXTRA_CONSTRAINT else if (EXTRA_CONSTRAINT (op, c)) win = 1; + + if (EXTRA_MEMORY_CONSTRAINT (c)) + { + /* Every MEM can be reloaded to fit. */ + allows_mem[i] = 1; + if (GET_CODE (op) == MEM) + win = 1; + } + if (EXTRA_ADDRESS_CONSTRAINT (op)) + { + /* Every address can be reloaded to fit. */ + allows_addr = 1; + if (address_operand (op, GET_MODE (op))) + win = 1; + /* We know this operand is an address, so we want it to be + allocated to a register that can be the base of an + address, ie BASE_REG_CLASS. */ + classes[i] + = reg_class_subunion[(int) classes[i]] + [(int) MODE_BASE_REG_CLASS (VOIDmode)]; + } #endif break; } |