From: Aman Goel <amangoel@umich.edu>
Date: Tue, 11 Sep 2018 01:44:36 +0000 (-0400)
Subject: Minor revision to -expose in setundef pass
X-Git-Tag: yosys-0.8~10^2
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=75c1f8d241d67ebb6db56516b4f9fdb0a312aa0b;p=yosys.git

Minor revision to -expose in setundef pass

Adds default value option as -undef when -expose used. Not having set the value mode set can cause the setundef pass to abort.
---

diff --git a/passes/cmds/setundef.cc b/passes/cmds/setundef.cc
index 62d940ce6..a1dfa9b5c 100644
--- a/passes/cmds/setundef.cc
+++ b/passes/cmds/setundef.cc
@@ -162,7 +162,6 @@ struct SetundefPass : public Pass {
 				continue;
 			}
 			if (args[argidx] == "-expose") {
-				got_value = true;
 				expose_mode = true;
 				continue;
 			}
@@ -212,6 +211,13 @@ struct SetundefPass : public Pass {
 		}
 		extra_args(args, argidx, design);
 
+		if (!got_value && expose_mode) {
+			log("Using default as -undef with -expose.\n");
+			got_value = true;
+			worker.next_bit_mode = MODE_UNDEF;
+			worker.next_bit_state = 0;
+		}
+
 		if (expose_mode && !undriven_mode)
 			log_cmd_error("Option -expose must be used with option -undriven.\n");
 		if (!got_value)