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| author | Eddie Hung <eddie@fpgeh.com> | 2019-07-09 21:26:38 -0700 |
|---|---|---|
| committer | Eddie Hung <eddie@fpgeh.com> | 2019-07-09 21:26:38 -0700 |
| commit | e573d024a257a6cf8925784f6f22d192a1f24693 (patch) | |
| tree | a293dc795ed9cec3dee1c6a85897a1d0c1e2c7e7 /techlibs/xilinx/synth_xilinx.cc | |
| parent | c55530b90197302e7c27eb106094fa74a178fc67 (diff) | |
| download | yosys-e573d024a257a6cf8925784f6f22d192a1f24693.tar.gz yosys-e573d024a257a6cf8925784f6f22d192a1f24693.tar.bz2 yosys-e573d024a257a6cf8925784f6f22d192a1f24693.zip | |
Call muxpack and pmux2shiftx before cmp2lut
Diffstat (limited to 'techlibs/xilinx/synth_xilinx.cc')
| -rw-r--r-- | techlibs/xilinx/synth_xilinx.cc | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc index c4877c8af..ef7660288 100644 --- a/techlibs/xilinx/synth_xilinx.cc +++ b/techlibs/xilinx/synth_xilinx.cc @@ -253,14 +253,6 @@ struct SynthXilinxPass : public ScriptPass run("wreduce" + std::string(widemux > 0 ? " -keepdc" : "")); run("peepopt"); run("opt_clean"); - run("techmap -map +/cmp2lut.v -D LUT_WIDTH=6"); - run("alumacc"); - run("share"); - run("opt"); - run("fsm"); - run("opt -fast"); - run("memory -nomap"); - run("opt_clean"); if (widemux > 0 || help_mode) run("muxpack", " ('-widemux' only)"); @@ -269,8 +261,19 @@ struct SynthXilinxPass : public ScriptPass // cells for identifying variable-length shift registers, // so attempt to convert $pmux-es to the former // Also: wide multiplexer inference benefits from this too - if (!(nosrl && widemux == 0) || help_mode) + if (!(nosrl && widemux == 0) || help_mode) { run("pmux2shiftx", "(skip if '-nosrl' and '-widemux=0')"); + run("clean", " (skip if '-nosrl' and '-widemux=0')"); + } + + run("techmap -map +/cmp2lut.v -D LUT_WIDTH=6"); + run("alumacc"); + run("share"); + run("opt"); + run("fsm"); + run("opt -fast"); + run("memory -nomap"); + run("opt_clean"); } if (check_label("bram", "(skip if '-nobram')")) { |