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| author | Eddie Hung <eddie@fpgeh.com> | 2019-12-30 11:57:18 -0800 |
|---|---|---|
| committer | Eddie Hung <eddie@fpgeh.com> | 2019-12-30 13:28:29 -0800 |
| commit | 566d9fb77f8688022ae7247fa9466a4327b2adb7 (patch) | |
| tree | 0cd4b73ff24071fb482e54837d151bba72b28546 /passes/techmap/abc.cc | |
| parent | c2c74f9bb001bba026270a6c218fc462aeaac6c2 (diff) | |
| download | yosys-566d9fb77f8688022ae7247fa9466a4327b2adb7.tar.gz yosys-566d9fb77f8688022ae7247fa9466a4327b2adb7.tar.bz2 yosys-566d9fb77f8688022ae7247fa9466a4327b2adb7.zip | |
Revert "ABC to call retime all the time"
This reverts commit 9aa94370a54c016421740d2ce32ef0aa338d0dbd.
Diffstat (limited to 'passes/techmap/abc.cc')
| -rw-r--r-- | passes/techmap/abc.cc | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/passes/techmap/abc.cc b/passes/techmap/abc.cc index b29480e26..1852cacc0 100644 --- a/passes/techmap/abc.cc +++ b/passes/techmap/abc.cc @@ -29,17 +29,17 @@ // Kahn, Arthur B. (1962), "Topological sorting of large networks", Communications of the ACM 5 (11): 558-562, doi:10.1145/368996.369025 // http://en.wikipedia.org/wiki/Topological_sorting -#define ABC_COMMAND_LIB "strash; ifraig; scorr; dc2; dretime; retime {D}; strash; &get -n; &dch -f; &nf {D}; &put" -#define ABC_COMMAND_CTR "strash; ifraig; scorr; dc2; dretime; retime {D}; strash; &get -n; &dch -f; &nf {D}; &put; buffer; upsize {D}; dnsize {D}; stime -p" -#define ABC_COMMAND_LUT "strash; ifraig; scorr; dc2; dretime; retime {D}; strash; dch -f; if; mfs2" -#define ABC_COMMAND_SOP "strash; ifraig; scorr; dc2; dretime; retime {D}; strash; dch -f; cover {I} {P}" -#define ABC_COMMAND_DFL "strash; ifraig; scorr; dc2; dretime; retime {D}; strash; &get -n; &dch -f; &nf {D}; &put" - -#define ABC_FAST_COMMAND_LIB "strash; dretime; retime {D}; map {D}" -#define ABC_FAST_COMMAND_CTR "strash; dretime; retime {D}; map {D}; buffer; upsize {D}; dnsize {D}; stime -p" -#define ABC_FAST_COMMAND_LUT "strash; dretime; retime {D}; if" -#define ABC_FAST_COMMAND_SOP "strash; dretime; retime {D}; cover -I {I} -P {P}" -#define ABC_FAST_COMMAND_DFL "strash; dretime; retime {D}; map" +#define ABC_COMMAND_LIB "strash; ifraig; scorr; dc2; dretime; strash; &get -n; &dch -f; &nf {D}; &put" +#define ABC_COMMAND_CTR "strash; ifraig; scorr; dc2; dretime; strash; &get -n; &dch -f; &nf {D}; &put; buffer; upsize {D}; dnsize {D}; stime -p" +#define ABC_COMMAND_LUT "strash; ifraig; scorr; dc2; dretime; strash; dch -f; if; mfs2" +#define ABC_COMMAND_SOP "strash; ifraig; scorr; dc2; dretime; strash; dch -f; cover {I} {P}" +#define ABC_COMMAND_DFL "strash; ifraig; scorr; dc2; dretime; strash; &get -n; &dch -f; &nf {D}; &put" + +#define ABC_FAST_COMMAND_LIB "strash; dretime; map {D}" +#define ABC_FAST_COMMAND_CTR "strash; dretime; map {D}; buffer; upsize {D}; dnsize {D}; stime -p" +#define ABC_FAST_COMMAND_LUT "strash; dretime; if" +#define ABC_FAST_COMMAND_SOP "strash; dretime; cover -I {I} -P {P}" +#define ABC_FAST_COMMAND_DFL "strash; dretime; map" #include "kernel/register.h" #include "kernel/sigtools.h" @@ -747,6 +747,10 @@ void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::strin else abc_script += fast_mode ? ABC_FAST_COMMAND_DFL : ABC_COMMAND_DFL; + if (script_file.empty() && !delay_target.empty()) + for (size_t pos = abc_script.find("dretime;"); pos != std::string::npos; pos = abc_script.find("dretime;", pos+1)) + abc_script = abc_script.substr(0, pos) + "dretime; retime -o {D};" + abc_script.substr(pos+8); + for (size_t pos = abc_script.find("{D}"); pos != std::string::npos; pos = abc_script.find("{D}", pos)) abc_script = abc_script.substr(0, pos) + delay_target + abc_script.substr(pos+3); |