synth_xilinx: cleanup help

diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc
index 9b4b1f71a78300611f8775d39479d3ef93105857..8119d307c6901b5af255fb73004fb4dacc18b213 100644 (file)
--- a/techlibs/xilinx/synth_xilinx.cc
+++ b/techlibs/xilinx/synth_xilinx.cc
@@ -530,7 +530,7 @@ struct SynthXilinxPass : public ScriptPass
                if (check_label("map_cells")) {
                        // Needs to be done before logic optimization, so that inverters (OE vs T) are handled.
                        if (help_mode || !noiopad)
-                               run("iopadmap -bits -outpad OBUF I:O -inpad IBUF O:I -toutpad $__XILINX_TOUTPAD OE:I:O -tinoutpad $__XILINX_TINOUTPAD OE:O:I:IO A:top", "(only if not '-noiopad')");
+                               run("iopadmap -bits -outpad OBUF I:O -inpad IBUF O:I -toutpad $__XILINX_TOUTPAD OE:I:O -tinoutpad $__XILINX_TINOUTPAD OE:O:I:IO A:top", "(skip if '-noiopad')");
                        std::string techmap_args = "-map +/techmap.v -map +/xilinx/cells_map.v";
                        if (widemux > 0)
                                techmap_args += stringf(" -D MIN_MUX_INPUTS=%d", widemux);
@@ -593,17 +593,15 @@ struct SynthXilinxPass : public ScriptPass
                        if (!nosrl || help_mode)
                                run("xilinx_srl -fixed -minlen 3", "(skip if '-nosrl')");
                        std::string techmap_args = "-map +/xilinx/lut_map.v -map +/xilinx/cells_map.v";
-                       if (help_mode)
-                               techmap_args += stringf("[-map %s]", ff_map_file.c_str());
-                       else if (!abc9)
+                       if (help_mode || !abc9)
                                techmap_args += stringf(" -map %s", ff_map_file.c_str());
-                       run("techmap " + techmap_args, "(only if '-abc9')");
+                       run("techmap " + techmap_args);
                        run("xilinx_dffopt");
                }
 
                if (check_label("finalize")) {
                        if (help_mode || !noclkbuf)
-                               run("clkbufmap -buf BUFG O:I ", "(skip if '-noclkbuf')");
+                               run("clkbufmap -buf BUFG O:I", "(skip if '-noclkbuf')");
                        if (help_mode || ise)
                                run("extractinv -inv INV O:I", "(only if '-ise')");
                        run("clean");