Merge pull request #5621 from rocallahan/remove-opt-sort

Remove `Design::sort()` calls from optimization passes

techlibs/common/prep.cc

@@ -211,6 +211,7 @@ struct PrepPass : public ScriptPass
 				run("memory_collect");
 			}
 			run(nokeepdc ? "opt -noff -fast" : "opt -noff -keepdc -fast");
+			run("sort");
 		}
 
 		if (check_label("check"))

techlibs/gowin/synth_gowin.cc

@@ -311,6 +311,7 @@ struct SynthGowinPass : public ScriptPass
 
 		if (check_label("map_luts"))
 		{
+			run("sort");
 			if (nowidelut && abc9) {
 				run("read_verilog -icells -lib -specify +/abc9_model.v");
 				run("abc9 -maxlut 4 -W 500");

techlibs/xilinx/synth_xilinx.cc

@@ -386,6 +386,8 @@ struct SynthXilinxPass : public ScriptPass
 				run("pmux2shiftx", "(skip if '-nosrl' and '-widemux=0')");
 				run("clean", "      (skip if '-nosrl' and '-widemux=0')");
 			}
+
+			run("sort");
 		}
 
 		if (check_label("map_dsp", "(skip if '-nodsp')")) {