eval: Eliminate division by zero

When doing division we should detect if the value we're
divided by is not zero. Instead of is_unknown() helper
we should use is_just_unknown().

https://bugzilla.nasm.us/show_bug.cgi?id=3392515
https://bugzilla.nasm.us/show_bug.cgi?id=3392473

Reported-by: Jun <jxx13@psu.edu>
Reported-by: stuartly <situlingyun@gmail.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/asm/eval.c b/asm/eval.c
index 1a6680f2..7e727a4e 100644
--- a/asm/eval.c
+++ b/asm/eval.c
@@ -580,7 +580,7 @@ static expr *expr5(int critical)
                   " scalar values");
             return NULL;
         }
-        if (j != '*' && !is_unknown(f) && reloc_value(f) == 0) {
+        if (j != '*' && !is_just_unknown(f) && reloc_value(f) == 0) {
             nasm_error(ERR_NONFATAL, "division by zero");
             return NULL;
         }