From: Eddie Hung <eddie@fpgeh.com>
Date: Fri, 10 Jan 2020 02:16:58 +0000 (-0800)
Subject: Tune abc9.script.flow
X-Git-Tag: working-ls180~870^2~9
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e378902f939c24cb8f6cbff29c3f508a4655f3ab;p=yosys.git

Tune abc9.script.flow
---

diff --git a/passes/techmap/abc9.cc b/passes/techmap/abc9.cc
index aed662fc5..b828404bc 100644
--- a/passes/techmap/abc9.cc
+++ b/passes/techmap/abc9.cc
@@ -737,21 +737,29 @@ struct Abc9Pass : public Pass {
 		RTLIL::constpad["abc9.script.default.fast"] = "+&if {C} {W} {D} {R} -v";
 		// Based on ABC's &flow
 		RTLIL::constpad["abc9.script.flow"] = "+&scorr; &sweep;" \
+			"&dch -C 500;" \
 			/* Round 1 */ \
-			"&unmap; &if {C} {W} {D} {R}; &mfs;" \
+			/* Map 1 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \
 			"&st; &dsdb;" \
-			"&unmap; &if {C} {W} {D} {R}; &mfs;" \
+			/* Map 2 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \
 			"&st; &syn2 -m -R 10; &dsdb;" \
 			"&blut -a -K 6;" \
-			"&unmap; &if {C} {W} {D} {R}; &mfs;" \
+			/* Map 3 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \
 			/* Round 2 */ \
 			"&st; &sopb;" \
-			"&unmap; &if {C} {W} {D} {R}; &mfs;" \
+			/* Map 1 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \
 			"&st; &dsdb;" \
-			"&unmap; &if {C} {W} {D} {R}; &mfs;" \
+			/* Map 2 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \
 			"&st; &syn2 -m -R 10; &dsdb;" \
 			"&blut -a -K 6;" \
-			"&unmap; &if {C} {W} {D} {R} -v; &mfs";
+			/* Map 3 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \
+			/* Round 3 */ \
+			/* Map 1 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \
+			"&st; &dsdb;" \
+			/* Map 2 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \
+			"&st; &syn2 -m -R 10; &dsdb;" \
+			"&blut -a -K 6;" \
+			/* Map 3 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;";
 		// Based on ABC's &flow2
 		RTLIL::constpad["abc9.script.flow2"] = "+&scorr; &sweep;" \
 			/* Comm1 */ "&synch2 -K 6 -C 500; &if -m {C} {W} {D} {R} -v; &mfs "/*"-W 4 -M 500 -C 7000"*/"; &save;"\