diff options
Diffstat (limited to 'gcc/stmt.c')
| -rw-r--r-- | gcc/stmt.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/gcc/stmt.c b/gcc/stmt.c index 2db6dfa896d..e5d094d5ae9 100644 --- a/gcc/stmt.c +++ b/gcc/stmt.c @@ -1471,16 +1471,14 @@ warn_if_unused_value (tree exp, location_t locus) default: /* Referencing a volatile value is a side effect, so don't warn. */ - if ((DECL_P (exp) - || TREE_CODE_CLASS (TREE_CODE (exp)) == 'r') + if ((DECL_P (exp) || REFERENCE_CLASS_P (exp)) && TREE_THIS_VOLATILE (exp)) return 0; /* If this is an expression which has no operands, there is no value to be unused. There are no such language-independent codes, but front ends may define such. */ - if (TREE_CODE_CLASS (TREE_CODE (exp)) == 'e' - && TREE_CODE_LENGTH (TREE_CODE (exp)) == 0) + if (EXPRESSION_CLASS_P (exp) && TREE_CODE_LENGTH (TREE_CODE (exp)) == 0) return 0; maybe_warn: |
