Merge remote-tracking branch 'origin/master' into xc7dsp

tests/ice40/macc.v

@@ -2,8 +2,8 @@
 Example from: https://www.latticesemi.com/-/media/LatticeSemi/Documents/UserManuals/EI/iCEcube201701UserGuide.ashx?document_id=52071 [p. 77].
 */
 module top(clk,a,b,c,set);
-parameter A_WIDTH = 4;
-parameter B_WIDTH = 3;
+parameter A_WIDTH = 6 /*4*/;
+parameter B_WIDTH = 6 /*3*/;
 input set;
 input clk;
 input signed [(A_WIDTH - 1):0] a;

tests/ice40/macc.ys

@@ -1,10 +1,13 @@
 read_verilog macc.v
 proc
 hierarchy -top top
-equiv_opt -assert -map +/ice40/cells_sim.v synth_ice40 -dsp # equivalency check
+#equiv_opt -assert -map +/ice40/cells_sim.v synth_ice40 -dsp # equivalency check
+
+equiv_opt -run :prove -map +/ice40/cells_sim.v synth_ice40 -dsp
+async2sync
+equiv_opt -run prove: -assert null
+
 design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
 cd top # Constrain all select calls below inside the top module
-select -assert-count 38 t:SB_LUT4
-select -assert-count 3 t:SB_CARRY
-select -assert-count 7 t:SB_DFFSR
-select -assert-none t:SB_LUT4 t:SB_CARRY t:SB_DFFSR %% t:* %D
+select -assert-count 1 t:SB_MAC16
+select -assert-none t:SB_MAC16 %% t:* %D

tests/simple/run-test.sh

@@ -12,7 +12,7 @@ done
 shift "$((OPTIND-1))"
 
 # check for Icarus Verilog
-if ! which iverilog > /dev/null ; then
+if ! command -v iverilog > /dev/null ; then
   echo "$0: Error: Icarus Verilog 'iverilog' not found."
   exit 1
 fi

tests/simple_abc9/run-test.sh

@@ -12,7 +12,7 @@ done
 shift "$((OPTIND-1))"
 
 # check for Icarus Verilog
-if ! which iverilog > /dev/null ; then
+if ! command -v iverilog > /dev/null ; then
   echo "$0: Error: Icarus Verilog 'iverilog' not found."
   exit 1
 fi

tests/various/hierarchy_defer.ys

@@ -0,0 +1,27 @@
+read -noverific
+read -vlog2k <<EOT
+module first;
+endmodule
+
+(* top *)
+module top(input i, output o);
+sub s0(i, o);
+endmodule
+
+(* constant_expression=1+1?2*2:3/3 *)
+module sub(input i, output o);
+assign o = ~i;
+endmodule
+EOT
+design -save read
+
+hierarchy -auto-top
+select -assert-any top
+select -assert-any sub
+select -assert-none foo
+
+design -load read
+hierarchy
+select -assert-any top
+select -assert-any sub
+select -assert-none foo