From: Eddie Hung <eddie@fpgeh.com>
Date: Thu, 16 Apr 2020 19:45:04 +0000 (-0700)
Subject: select: add test for not selecting inside black/white boxes
X-Git-Tag: working-ls180~595^2~4
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2ddfb61e65bb8299ba9bc09af9bb4636efc2ddb0;p=yosys.git

select: add test for not selecting inside black/white boxes
---

diff --git a/tests/select/blackboxes.ys b/tests/select/blackboxes.ys
new file mode 100644
index 000000000..0031de194
--- /dev/null
+++ b/tests/select/blackboxes.ys
@@ -0,0 +1,21 @@
+read_verilog -specify <<EOT
+module top(input a, b, output o);
+assign o = a & b;
+endmodule
+
+(* blackbox *)
+module bb(input a, b, output o);
+assign o = a | b;
+specify
+	(a => o) = 1;
+endspecify
+endmodule
+
+(* whitebox *)
+module wb(input a, b, output o);
+assign o = a ^ b;
+endmodule
+EOT
+
+select -assert-count 1 c:*
+select -assert-none t:* t:$and %d