diff options
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 2366c75..7cab3c4 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -2635,8 +2635,11 @@ operand_equal_p (tree arg0, tree arg1, unsigned int flags) && OP_SAME_WITH_NULL (3)); case COMPONENT_REF: - /* Handle operand 2 the same as for ARRAY_REF. */ - return OP_SAME (0) && OP_SAME (1) && OP_SAME_WITH_NULL (2); + /* Handle operand 2 the same as for ARRAY_REF. Operand 0 + may be NULL when we're called to compare MEM_EXPRs. */ + return OP_SAME_WITH_NULL (0) + && OP_SAME (1) + && OP_SAME_WITH_NULL (2); case BIT_FIELD_REF: return OP_SAME (0) && OP_SAME (1) && OP_SAME (2); |