From: Eddie Hung <eddie@fpgeh.com>
Date: Fri, 8 May 2020 18:07:11 +0000 (-0700)
Subject: tests: opt_expr tests that depend on consumex
X-Git-Tag: working-ls180~553^2~4
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=495acf981547850ac7ad5b765dd215b0c33d59ac;p=yosys.git

tests: opt_expr tests that depend on consumex
---

diff --git a/tests/opt/opt_expr_consumex.ys b/tests/opt/opt_expr_consumex.ys
new file mode 100644
index 000000000..d4af10f22
--- /dev/null
+++ b/tests/opt/opt_expr_consumex.ys
@@ -0,0 +1,35 @@
+read_verilog <<EOT
+module top(input a, b, output o);
+wire tmp;
+assign o = tmp | 1'bx;
+assign tmp = a & 1'b0;
+endmodule
+EOT
+design -save read
+select -assert-count 1 t:$and
+select -assert-count 1 t:$or
+
+
+opt_expr
+select -assert-none t:$and t:$or
+sat -verify -enable_undef -prove o 1'bx
+
+
+design -load read
+opt_expr -keepdc
+select -assert-none t:$and t:$or
+sat -verify -enable_undef -prove o 1'bx
+
+
+design -load read
+simplemap
+opt_expr -keepdc
+select -assert-none t:$_AND_ t:$_OR_
+sat -verify -enable_undef -prove o 1'bx
+
+
+design -load read
+simplemap
+opt_expr -keepdc
+select -assert-none t:$_AND_ t:$_OR_
+sat -verify -enable_undef -prove o 1'bx