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| author | Clifford Wolf <clifford@clifford.at> | 2016-09-30 17:02:52 +0200 |
|---|---|---|
| committer | Clifford Wolf <clifford@clifford.at> | 2016-09-30 17:02:52 +0200 |
| commit | 76352c99c9f74226d2ea80e030639a4bbd76acf4 (patch) | |
| tree | 5d9c24a73b5f9c87a277490d27582ddb20ac985f /techlibs/common | |
| parent | ed519f578eb965f9976931c817aa54e3cd89710d (diff) | |
| download | yosys-76352c99c9f74226d2ea80e030639a4bbd76acf4.tar.gz yosys-76352c99c9f74226d2ea80e030639a4bbd76acf4.tar.bz2 yosys-76352c99c9f74226d2ea80e030639a4bbd76acf4.zip | |
Added "prep -nokeepdc"
Diffstat (limited to 'techlibs/common')
| -rw-r--r-- | techlibs/common/prep.cc | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/techlibs/common/prep.cc b/techlibs/common/prep.cc index fac6c4bac..71534983d 100644 --- a/techlibs/common/prep.cc +++ b/techlibs/common/prep.cc @@ -63,6 +63,9 @@ struct PrepPass : public ScriptPass log(" -nordff\n"); log(" passed to 'memory_dff'. prohibits merging of FFs into memory read ports\n"); log("\n"); + log(" -nokeepdc\n"); + log(" do not call opt_* with -keepdc\n"); + log("\n"); log(" -run <from_label>[:<to_label>]\n"); log(" only run the commands between the labels (see below). an empty\n"); log(" from label is synonymous to 'begin', and empty to label is\n"); @@ -75,7 +78,7 @@ struct PrepPass : public ScriptPass } string top_module, fsm_opts, memory_opts; - bool autotop, flatten, ifxmode, memxmode, nomemmode; + bool autotop, flatten, ifxmode, memxmode, nomemmode, nokeepdc; virtual void clear_flags() YS_OVERRIDE { @@ -87,6 +90,7 @@ struct PrepPass : public ScriptPass ifxmode = false; memxmode = false; nomemmode = false; + nokeepdc = false; } virtual void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE @@ -136,6 +140,10 @@ struct PrepPass : public ScriptPass memory_opts += " -nordff"; continue; } + if (args[argidx] == "-nokeepdc") { + nokeepdc = true; + continue; + } break; } extra_args(args, argidx, design); @@ -177,10 +185,10 @@ struct PrepPass : public ScriptPass run(ifxmode ? "proc -ifx" : "proc"); if (help_mode || flatten) run("flatten", "(if -flatten)"); - run("opt_expr -keepdc"); + run(nokeepdc ? "opt_expr" : "opt_expr -keepdc"); run("opt_clean"); run("check"); - run("opt -keepdc"); + run(nokeepdc ? "opt" : "opt -keepdc"); if (!ifxmode) { if (help_mode) run("wreduce [-memx]"); @@ -194,7 +202,7 @@ struct PrepPass : public ScriptPass run("opt_clean"); run("memory_collect"); } - run("opt -keepdc -fast"); + run(nokeepdc ? "opt -fast" : "opt -keepdc -fast"); } if (check_label("check")) |