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| author | Clifford Wolf <clifford@clifford.at> | 2013-12-18 13:41:36 +0100 |
|---|---|---|
| committer | Clifford Wolf <clifford@clifford.at> | 2013-12-18 13:41:36 +0100 |
| commit | fbd06a1afcef77e32b1fbe6405f1e639995d2fa5 (patch) | |
| tree | 941a167a848251dd026f9bbd9903a6146720c402 /frontends | |
| parent | 921064c20044f72a64bec12dbd73103bdd3f45e3 (diff) | |
| download | yosys-fbd06a1afcef77e32b1fbe6405f1e639995d2fa5.tar.gz yosys-fbd06a1afcef77e32b1fbe6405f1e639995d2fa5.tar.bz2 yosys-fbd06a1afcef77e32b1fbe6405f1e639995d2fa5.zip | |
Added elsif preproc support
Diffstat (limited to 'frontends')
| -rw-r--r-- | frontends/verilog/preproc.cc | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/frontends/verilog/preproc.cc b/frontends/verilog/preproc.cc index e17531be2..023c4dbcc 100644 --- a/frontends/verilog/preproc.cc +++ b/frontends/verilog/preproc.cc @@ -206,6 +206,7 @@ std::string frontend_verilog_preproc(FILE *f, std::string filename, const std::m { std::map<std::string, std::string> defines_map(pre_defines_map); int ifdef_fail_level = 0; + bool in_elseif = false; output_code.clear(); input_buffer.clear(); @@ -222,17 +223,29 @@ std::string frontend_verilog_preproc(FILE *f, std::string filename, const std::m if (tok == "`endif") { if (ifdef_fail_level > 0) ifdef_fail_level--; + if (ifdef_fail_level == 0) + in_elseif = false; continue; } if (tok == "`else") { if (ifdef_fail_level == 0) ifdef_fail_level = 1; - else if (ifdef_fail_level == 1) + else if (ifdef_fail_level == 1 && !in_elseif) ifdef_fail_level = 0; continue; } + if (tok == "`elsif") { + skip_spaces(); + std::string name = next_token(true); + if (ifdef_fail_level == 0) + ifdef_fail_level = 1, in_elseif = true; + else if (ifdef_fail_level == 1 && defines_map.count(name) != 0) + ifdef_fail_level = 0, in_elseif = true; + continue; + } + if (tok == "`ifdef") { skip_spaces(); std::string name = next_token(true); |