diff options
Diffstat (limited to 'tests/various')
| -rw-r--r-- | tests/various/bug1531.ys | 34 | ||||
| -rw-r--r-- | tests/various/scratchpad.ys | 5 |
2 files changed, 39 insertions, 0 deletions
diff --git a/tests/various/bug1531.ys b/tests/various/bug1531.ys new file mode 100644 index 000000000..542223030 --- /dev/null +++ b/tests/various/bug1531.ys @@ -0,0 +1,34 @@ +read_verilog <<EOT +module top (y, clk, w); + output reg y = 1'b0; + input clk, w; + reg [1:0] i = 2'b00; + always @(posedge clk) + // If the constant below is set to 2'b00, the correct output is generated. + // vvvv + for (i = 1'b0; i < 2'b01; i = i + 2'b01) + y <= w || i[1:1]; +endmodule +EOT + +synth +design -stash gate + +read_verilog <<EOT +module gold (y, clk, w); + input clk; + wire [1:0] i; + input w; + output y; + reg y = 1'h0; + always @(posedge clk) + y <= w; + assign i = 2'h0; +endmodule +EOT +proc gold + +design -import gate -as gate + +miter -equiv -flatten -make_assert -make_outputs gold gate miter +sat -seq 10 -verify -prove-asserts -show-ports miter diff --git a/tests/various/scratchpad.ys b/tests/various/scratchpad.ys new file mode 100644 index 000000000..dc94081ea --- /dev/null +++ b/tests/various/scratchpad.ys @@ -0,0 +1,5 @@ +scratchpad -set foo "bar baz" +scratchpad -copy foo oof +scratchpad -unset foo +scratchpad -assert oof "bar baz" +scratchpad -assert-unset foo |