From a274b7cc86d4f64541d3d2903b4eeed4616ab1d8 Mon Sep 17 00:00:00 2001
From: Eddie Hung <eddie@fpgeh.com>
Date: Mon, 30 Sep 2019 10:59:56 -0700
Subject: Update doc for equiv_opt
---
passes/equiv/equiv_opt.cc | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/passes/equiv/equiv_opt.cc b/passes/equiv/equiv_opt.cc
index 9fe3bbd57..4ab5b1a3e 100644
--- a/passes/equiv/equiv_opt.cc
+++ b/passes/equiv/equiv_opt.cc
@@ -32,7 +32,8 @@ struct EquivOptPass:public ScriptPass
log("\n");
log(" equiv_opt [options] [command]\n");
log("\n");
- log("This command checks circuit equivalence before and after an optimization pass.\n");
+ log("This command uses temporal induction to check circuit equivalence before and\n");
+ log("after an optimization pass.\n");
log("\n");
log(" -run <from_label>:<to_label>\n");
log(" only run the commands between the labels (see below). an empty\n");
@@ -156,7 +157,7 @@ struct EquivOptPass:public ScriptPass
if (check_label("prove")) {
if (multiclock || help_mode)
run("clk2fflogic", "(only with -multiclock)");
- else
+ if (!multiclock || help_mode)
run("async2sync", "(only without -multiclock)");
run("equiv_make gold gate equiv");
if (help_mode)
--
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