diff options
| -rw-r--r-- | passes/sat/sat.cc | 2 | ||||
| -rw-r--r-- | tests/sat/initval.v | 4 | ||||
| -rw-r--r-- | tests/sat/initval.ys | 2 |
3 files changed, 1 insertions, 7 deletions
diff --git a/passes/sat/sat.cc b/passes/sat/sat.cc index bcc690fa3..dd56d8c71 100644 --- a/passes/sat/sat.cc +++ b/passes/sat/sat.cc @@ -268,8 +268,6 @@ struct SatHelper RTLIL::SigSpec removed_bits; for (int i = 0; i < lhs.size(); i++) { RTLIL::SigSpec bit = lhs.extract(i, 1); - if (bit.is_fully_const() && rhs[i] == State::Sx) - rhs[i] = bit; if (!satgen.initial_state.check_all(bit)) { removed_bits.append(bit); lhs.remove(i, 1); diff --git a/tests/sat/initval.v b/tests/sat/initval.v index d46ccae48..5b661f8d6 100644 --- a/tests/sat/initval.v +++ b/tests/sat/initval.v @@ -1,7 +1,6 @@ module test(input clk, input [3:0] bar, output [3:0] foo); reg [3:0] foo = 0; reg [3:0] last_bar = 0; - reg [3:0] asdf = 4'b1xxx; always @* foo[1:0] <= bar[1:0]; @@ -12,8 +11,5 @@ module test(input clk, input [3:0] bar, output [3:0] foo); always @(posedge clk) last_bar <= bar; - always @* - asdf[2:0] <= 3'b111; - assert property (foo == {last_bar[3:2], bar[1:0]}); endmodule diff --git a/tests/sat/initval.ys b/tests/sat/initval.ys index 3d88aa971..2079d2f34 100644 --- a/tests/sat/initval.ys +++ b/tests/sat/initval.ys @@ -1,4 +1,4 @@ read_verilog -sv initval.v -proc; +proc;; sat -seq 10 -prove-asserts |