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| author | Jim Paris <jim@jtan.com> | 2018-05-17 00:09:56 -0400 |
|---|---|---|
| committer | Jim Paris <jim@jtan.com> | 2018-05-17 00:09:56 -0400 |
| commit | 4a229e5b953c15ecb31945258e0ca2f7bffe8a3e (patch) | |
| tree | 367112f4f46fc2af890ebad1fb86e496d36ce3ad | |
| parent | 872d8d49e98fc5a4090ce20d902afbd0090c8c84 (diff) | |
| download | yosys-4a229e5b953c15ecb31945258e0ca2f7bffe8a3e.tar.gz yosys-4a229e5b953c15ecb31945258e0ca2f7bffe8a3e.tar.bz2 yosys-4a229e5b953c15ecb31945258e0ca2f7bffe8a3e.zip | |
Support SystemVerilog `` extension for macros
| -rw-r--r-- | frontends/verilog/preproc.cc | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/frontends/verilog/preproc.cc b/frontends/verilog/preproc.cc index 00124cb42..dea22ee8a 100644 --- a/frontends/verilog/preproc.cc +++ b/frontends/verilog/preproc.cc @@ -183,8 +183,9 @@ static std::string next_token(bool pass_newline = false) const char *ok = "abcdefghijklmnopqrstuvwxyz_ABCDEFGHIJKLMNOPQRSTUVWXYZ$0123456789"; if (ch == '`' || strchr(ok, ch) != NULL) { + char first = ch; ch = next_char(); - if (ch == '"') { + if (first == '`' && (ch == '"' || ch == '`')) { token += ch; } else do { if (strchr(ok, ch) == NULL) { @@ -265,6 +266,9 @@ static bool try_expand_macro(std::set<std::string> &defines_with_args, } insert_input(defines_map[name]); return true; + } else if (tok == "``") { + // Swallow `` in macro expansion + return true; } else return false; } |