Check base-n literals only contain valid digits

diff --git a/frontends/verilog/const2ast.cc b/frontends/verilog/const2ast.cc
index 6a9326898fe3ccec4dacd8d2c9b06c5437c061bb..5bc8c700e0f0193dee4ba44033512deffabe7491 100644 (file)
--- a/frontends/verilog/const2ast.cc
+++ b/frontends/verilog/const2ast.cc
@@ -104,6 +104,9 @@ static void my_strtobin(std::vector<RTLIL::State> &data, const char *str, int le
        } else {
                int bits_per_digit = my_ilog2(base-1);
                for (auto it = digits.rbegin(), e = digits.rend(); it != e; it++) {
+                       if (*it > (base-1) && *it < 0xf0)
+                               log_error("Digit larger than %d used in in base-%d constant at %s:%d.\n",
+                                       base-1, base, current_filename.c_str(), get_line_num());
                        for (int i = 0; i < bits_per_digit; i++) {
                                int bitmask = 1 << i;
                                if (*it == 0xf0)