diff options
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/recog.c | 25 |
2 files changed, 23 insertions, 6 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 06768ae..64dcf07 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2004-01-09 Richard Henderson <rth@redhat.com> + + * recog.c (constrain_operands): Validate mem operands. + 2004-01-09 James E Wilson <wilson@specifixinc.com> * gcc.c (init_spec): Remove -lunwind from shared case. diff --git a/gcc/recog.c b/gcc/recog.c index 9f5c152..d2338e6 100644 --- a/gcc/recog.c +++ b/gcc/recog.c @@ -2445,12 +2445,25 @@ constrain_operands (int strict) break; case 'm': - if (GET_CODE (op) == MEM - /* Before reload, accept what reload can turn into mem. */ - || (strict < 0 && CONSTANT_P (op)) - /* During reload, accept a pseudo */ - || (reload_in_progress && GET_CODE (op) == REG - && REGNO (op) >= FIRST_PSEUDO_REGISTER)) + /* Memory operands must be valid, to the extent + required by STRICT. */ + if (GET_CODE (op) == MEM) + { + if (strict > 0 + && !strict_memory_address_p (GET_MODE (op), + XEXP (op, 0))) + break; + if (strict == 0 + && !memory_address_p (GET_MODE (op), XEXP (op, 0))) + break; + win = 1; + } + /* Before reload, accept what reload can turn into mem. */ + else if (strict < 0 && CONSTANT_P (op)) + win = 1; + /* During reload, accept a pseudo */ + else if (reload_in_progress && GET_CODE (op) == REG + && REGNO (op) >= FIRST_PSEUDO_REGISTER) win = 1; break; |