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| author | Eddie Hung <eddie@fpgeh.com> | 2019-07-08 19:21:53 -0700 |
|---|---|---|
| committer | Eddie Hung <eddie@fpgeh.com> | 2019-07-08 19:21:53 -0700 |
| commit | 9ac078be6f4080efde1e701b05afd6a0c8478296 (patch) | |
| tree | fe279fe3d0901a20320a4c1f4cfd29f7f7370ca5 /passes | |
| parent | 3f86407cc32e20a8885c73f959082c5c0449bf9a (diff) | |
| parent | fccabd09436aae780875fae2d833f58549f38418 (diff) | |
| download | yosys-9ac078be6f4080efde1e701b05afd6a0c8478296.tar.gz yosys-9ac078be6f4080efde1e701b05afd6a0c8478296.tar.bz2 yosys-9ac078be6f4080efde1e701b05afd6a0c8478296.zip | |
Merge remote-tracking branch 'origin/eddie/synth_keepdc' into xc7mux
Diffstat (limited to 'passes')
| -rw-r--r-- | passes/opt/wreduce.cc | 2 | ||||
| -rw-r--r-- | passes/techmap/muxcover.cc | 15 |
2 files changed, 11 insertions, 6 deletions
diff --git a/passes/opt/wreduce.cc b/passes/opt/wreduce.cc index 1fbc41082..f749c8249 100644 --- a/passes/opt/wreduce.cc +++ b/passes/opt/wreduce.cc @@ -497,7 +497,7 @@ struct WreducePass : public Pass { log(" flows that use the 'memory_memx' pass.\n"); log("\n"); log(" -keepdc\n"); - log(" Do not optimize explicit don't-care values.\n"); + log(" Do not optimize explicit don't-care values on $mux cells.\n"); log("\n"); } void execute(std::vector<std::string> args, Design *design) YS_OVERRIDE diff --git a/passes/techmap/muxcover.cc b/passes/techmap/muxcover.cc index fa97239f5..d53378a29 100644 --- a/passes/techmap/muxcover.cc +++ b/passes/techmap/muxcover.cc @@ -631,11 +631,16 @@ struct MuxcoverPass : public Pass { log("\n"); log("Cover trees of $_MUX_ cells with $_MUX{4,8,16}_ cells\n"); log("\n"); - log(" -mux2=cost, -mux4[=cost], -mux8[=cost], -mux16[=cost]\n"); - log(" Use the specified types of MUXes (with optional integer costs). If none\n"); - log(" of these options are given, the effect is the same as if all of them are.\n"); - log(" Default costs: $_MUX_ = %d, $_MUX4_ = %d,\n", COST_MUX2, COST_MUX4); - log(" $_MUX8_ = %d, $_MUX16_ = %d\n", COST_MUX8, COST_MUX16); + log(" -mux4[=cost], -mux8[=cost], -mux16[=cost]\n"); + log(" Cover $_MUX_ trees using the specified types of MUXes (with optional\n"); + log(" integer costs). If none of these options are given, the effect is the\n"); + log(" same as if all of them are.\n"); + log(" Default costs: $_MUX4_ = %d, $_MUX8_ = %d, \n", COST_MUX4, COST_MUX8); + log(" $_MUX16_ = %d\n", COST_MUX16); + log("\n"); + log(" -mux2=cost\n"); + log(" Use the specified cost for $_MUX_ cells when making covering decisions.\n"); + log(" Default cost: $_MUX_ = %d\n", COST_MUX2); log("\n"); log(" -dmux=cost\n"); log(" Use the specified cost for $_MUX_ cells used in decoders.\n"); |