`make simpletest` fails on tests/io/tri

[ghost]

with icestorm from master, yosys from master and arachne-pnr from master

Build log

``` + ../../bin/arachne-pnr tri.blif -o tri.txt seed: 1 device: 1k read_chipdb +/share/arachne-pnr/chipdb-1k.bin... supported packages: cb121, cb132, cb81, cm121, cm36, cm49, cm81, qn84, swg16tr, tq144, vq100 read_blif tri.blif... prune... instantiate_io... pack... After packing: IOs 6 / 96 GBs 0 / 8 GB_IOs 0 / 8 LCs 2 / 1280 DFF 0 CARRY 0 CARRY, DFF 0 DFF PASS 0 CARRY PASS 0 BRAMs 0 / 16 WARMBOOTs 0 / 1 PLLs 0 / 1 place_constraints... promote_globals... promoted 0 nets 0 globals realize_constants... place... initial wire length = 133 at iteration #50: temp = 6.39439, wire length = 68 at iteration #100: temp = 2.67362, wire length = 17 at iteration #150: temp = 0.022659, wire length = 9 final wire length = 9 After placement: PIOs 4 / 96 PLBs 2 / 160 BRAMs 0 / 16 place time 0.01s route... pass 1, 0 shared. After routing: span_4 0 / 6944 span_12 0 / 1440 route time 0.00s write_txt tri.txt... + icebox_vlog -s tri.txt + '[' -e tri.v ']' + diff -u tri.v out-tri.v --- tri.v 2018-06-19 20:44:09.419402495 +0300 +++ out-tri.v 2018-06-19 20:49:53.384751024 +0300 @@ -6,8 +6,8 @@ // IO Cell (0, 9, 1) assign io_0_9_1 = n4 ? n2 : 1'bz; -assign n8 = /* LUT 1 9 3 */ 1'b0 ? 1'b0 : io_0_10_1 ? io_0_8_0 ? 1'b1 : 1'b0 : io_0_9_0 ? 1'b1 : 1'b0; -assign n9 = /* LUT 1 10 5 */ 1'b0 ? 1'b0 : 1'b0 ? 1'b0 : io_0_10_1 ? io_0_10_0 ? 1'b1 : 1'b0 : 1'b1; +assign n8 = /* LUT 1 9 3 */ (io_0_10_1 ? io_0_8_0 : io_0_9_0); +assign n9 = /* LUT 1 10 5 */ (io_0_10_1 ? io_0_10_0 : 1'b1); /* FF 1 9 3 */ assign n2 = n8; /* FF 1 10 5 */ assign n4 = n9; make: *** [Makefile:109: test] Error 1 ```

[daveshah1]

This is a result of the recent changes to icebox_vlog changing the golden values. Will update when I have a chance in the next few days (unless you are OK making a PR for this).

[mithro]

I just also hit this issue?

write_txt tri.txt...
+ icebox_vlog -s tri.txt
+ '[' -e tri.v ']'
+ diff -u tri.v out-tri.v
--- tri.v   2018-08-15 02:12:45.190769956 +0000
+++ out-tri.v   2018-08-15 02:14:19.492831858 +0000
@@ -6,8 +6,8 @@
 // IO Cell (0, 9, 1)
 assign io_0_9_1 = n4 ? n2 : 1'bz;

-assign n8 = /* LUT    1  9  3 */ 1'b0 ? 1'b0 : io_0_10_1 ? io_0_8_0 ? 1'b1 : 1'b0 : io_0_9_0 ? 1'b1 : 1'b0;
-assign n9 = /* LUT    1 10  5 */ 1'b0 ? 1'b0 : 1'b0 ? 1'b0 : io_0_10_1 ? io_0_10_0 ? 1'b1 : 1'b0 : 1'b1;
+assign n8 = /* LUT    1  9  3 */ (io_0_10_1 ? io_0_8_0 : io_0_9_0);
+assign n9 = /* LUT    1 10  5 */ (io_0_10_1 ? io_0_10_0 : 1'b1);
 /* FF  1  9  3 */ assign n2 = n8;
 /* FF  1 10  5 */ assign n4 = n9;