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re PR target/37878 (PPC64 ldu command generated with invalid offset)

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PR target/37878
        * config/rs6000/predicates.md (word_offset_memref_operand):
        Restructure code and look inside auto-inc/dec addresses.

From-SVN: r141450
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David Edelsohn 2008-10-29 23:33:02 +00:00 committed by David Edelsohn
parent 81a39e89f3
commit 2665ab87be
2 changed files with 23 additions and 5 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2008-10-29 David Edelsohn <edelsohn@gnu.org>
PR target/37878
* config/rs6000/predicates.md (word_offset_memref_operand):
Restructure code and look inside auto-inc/dec addresses.
2008-10-29 Steve Ellcey <sje@cup.hp.com>
PR target/32277

22
gcc/config/rs6000/predicates.md
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@ -373,11 +373,23 @@
;; Return 1 if the operand is a memory operand with an address divisible by 4
(define_predicate "word_offset_memref_operand"
(and (match_operand 0 "memory_operand")
(match_test "GET_CODE (XEXP (op, 0)) != PLUS
|| ! REG_P (XEXP (XEXP (op, 0), 0))
|| GET_CODE (XEXP (XEXP (op, 0), 1)) != CONST_INT
|| INTVAL (XEXP (XEXP (op, 0), 1)) % 4 == 0")))
(match_operand 0 "memory_operand")
{
/* Address inside MEM. */
op = XEXP (op, 0);
/* Extract address from auto-inc/dec. */
if (GET_CODE (op) == PRE_INC
|| GET_CODE (op) == PRE_DEC)
op = XEXP (op, 0);
else if (GET_CODE (op) == PRE_MODIFY)
op = XEXP (op, 1);
return (GET_CODE (op) != PLUS
|| ! REG_P (XEXP (op, 0))
|| GET_CODE (XEXP (op, 1)) != CONST_INT
|| INTVAL (XEXP (op, 1)) % 4 == 0);
})
;; Return 1 if the operand is an indexed or indirect memory operand.
(define_predicate "indexed_or_indirect_operand"