POST_INC_OBJ/POST_DEC_OBJ don't have optional result

nikic · nikic · commit c958adce7095 · 2021-10-05T12:05:39.000+02:00
Possibly we should be encoding this in the opcode metadata, rather
than maintaining a separate list.

Fixes oss-fuzz #39503.
diff --git a/ext/opcache/Optimizer/dce.c b/ext/opcache/Optimizer/dce.c
@@ -349,9 +349,7 @@ static zend_bool try_remove_var_def(context *ctx, int free_var, int use_chain, z
 				case ZEND_PRE_INC:
 				case ZEND_PRE_DEC:
 				case ZEND_PRE_INC_OBJ:
-				case ZEND_POST_INC_OBJ:
 				case ZEND_PRE_DEC_OBJ:
-				case ZEND_POST_DEC_OBJ:
 				case ZEND_DO_ICALL:
 				case ZEND_DO_UCALL:
 				case ZEND_DO_FCALL_BY_NAME:
