Empty ASM constraints are invalid. So, catch them
at parsing time and issue a warning.
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>
---
evaluate.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/evaluate.c b/evaluate.c
index 919c944cf..74c7fd1d8 100644
--- a/evaluate.c
+++ b/evaluate.c
@@ -3503,6 +3503,9 @@ static void parse_asm_constraint(struct asm_operand *op)
int c;
switch (str[0]) {
+ case '\0':
+ sparse_error(constraint->pos, "invalid ASM constraint (\"\")");
+ break;
case '+':
op->is_modify = true;
/* fall-through */
--
2.23.0
