diff options
Diffstat (limited to 'gcc/c-family/c-common.c')
| -rw-r--r-- | gcc/c-family/c-common.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/gcc/c-family/c-common.c b/gcc/c-family/c-common.c index 0bfa1f6879e..1a2c21b8939 100644 --- a/gcc/c-family/c-common.c +++ b/gcc/c-family/c-common.c @@ -9765,15 +9765,19 @@ check_function_arguments_recurse (void (*callback) if (TREE_CODE (param) == COND_EXPR) { - tree cond = fold_for_warn (TREE_OPERAND (param, 0)); - /* Check both halves of the conditional expression. */ - if (!integer_zerop (cond)) - check_function_arguments_recurse (callback, ctx, - TREE_OPERAND (param, 1), param_num); - if (!integer_nonzerop (cond)) - check_function_arguments_recurse (callback, ctx, - TREE_OPERAND (param, 2), param_num); - return; + /* Simplify to avoid warning for an impossible case. */ + param = fold_for_warn (param); + if (TREE_CODE (param) == COND_EXPR) + { + /* Check both halves of the conditional expression. */ + check_function_arguments_recurse (callback, ctx, + TREE_OPERAND (param, 1), + param_num); + check_function_arguments_recurse (callback, ctx, + TREE_OPERAND (param, 2), + param_num); + return; + } } (*callback) (ctx, param, param_num); |