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-rw-r--r--tests/aiger/.gitignore2
-rw-r--r--tests/aiger/and_.aag8
-rw-r--r--tests/aiger/and_.aig5
-rw-r--r--tests/aiger/buffer.aag5
-rw-r--r--tests/aiger/buffer.aig4
-rw-r--r--tests/aiger/cnt1.aag4
-rw-r--r--tests/aiger/cnt1.aig4
-rw-r--r--tests/aiger/cnt1e.aag9
-rw-r--r--tests/aiger/cnt1e.aig5
-rw-r--r--tests/aiger/empty.aag1
-rw-r--r--tests/aiger/empty.aig1
-rw-r--r--tests/aiger/false.aag3
-rw-r--r--tests/aiger/false.aig3
-rw-r--r--tests/aiger/halfadder.aag14
-rw-r--r--tests/aiger/halfadder.aig9
-rw-r--r--tests/aiger/inverter.aag5
-rw-r--r--tests/aiger/inverter.aig4
-rw-r--r--tests/aiger/notcnt1.aag4
-rw-r--r--tests/aiger/notcnt1.aig4
-rw-r--r--tests/aiger/notcnt1e.aag9
-rw-r--r--tests/aiger/notcnt1e.aig5
-rw-r--r--tests/aiger/or_.aag8
-rw-r--r--tests/aiger/or_.aig5
-rwxr-xr-xtests/aiger/run-test.sh42
-rw-r--r--tests/aiger/toggle-re.aag14
-rw-r--r--tests/aiger/toggle-re.aig8
-rw-r--r--tests/aiger/toggle.aag6
-rw-r--r--tests/aiger/toggle.aig6
-rw-r--r--tests/aiger/true.aag3
-rw-r--r--tests/aiger/true.aig3
-rw-r--r--tests/asicworld/xfirrtl1
-rw-r--r--tests/liberty/.gitignore2
-rw-r--r--tests/liberty/busdef.lib81
-rw-r--r--tests/liberty/normal.lib359
-rw-r--r--tests/liberty/processdefs.lib48
-rwxr-xr-xtests/liberty/run-test.sh10
-rw-r--r--tests/liberty/semicolextra.lib48
-rw-r--r--tests/liberty/semicolmissing.lib72
-rw-r--r--tests/liberty/small.v16
-rw-r--r--tests/memories/firrtl_938.v22
-rw-r--r--tests/sat/counters-repeat.v38
-rw-r--r--tests/sat/counters-repeat.ys10
-rw-r--r--tests/simple/attrib01_module.v21
-rw-r--r--tests/simple/attrib02_port_decl.v25
-rw-r--r--tests/simple/attrib03_parameter.v28
-rw-r--r--tests/simple/attrib04_net_var.v32
-rw-r--r--tests/simple/attrib05_port_conn.v.DISABLED21
-rw-r--r--tests/simple/attrib06_operator_suffix.v23
-rw-r--r--tests/simple/attrib07_func_call.v.DISABLED21
-rw-r--r--tests/simple/attrib08_mod_inst.v22
-rw-r--r--tests/simple/attrib09_case.v26
-rw-r--r--tests/simple/dff_init.v12
-rw-r--r--tests/simple/forloops.v25
-rw-r--r--tests/simple/generate.v56
-rw-r--r--tests/simple/implicit_ports.v16
-rw-r--r--tests/simple/localparam_attr.v11
-rw-r--r--tests/simple/mem2reg.v22
-rw-r--r--tests/simple/param_attr.v11
-rw-r--r--tests/simple/peepopt.v13
-rw-r--r--tests/simple/retime.v6
-rwxr-xr-xtests/simple/run-test.sh3
-rw-r--r--tests/simple/task_func.v19
-rw-r--r--tests/simple/wandwor.v36
-rw-r--r--tests/simple/xfirrtl3
-rw-r--r--tests/sva/extnets.sv22
-rwxr-xr-xtests/svinterfaces/runone.sh8
-rwxr-xr-xtests/tools/autotest.sh39
-rw-r--r--tests/various/attrib05_port_conn.v21
-rw-r--r--tests/various/attrib05_port_conn.ys2
-rw-r--r--tests/various/attrib07_func_call.v21
-rw-r--r--tests/various/attrib07_func_call.ys2
-rw-r--r--tests/various/chparam.sh52
-rw-r--r--tests/various/elab_sys_tasks.sv30
-rw-r--r--tests/various/elab_sys_tasks.ys1
-rw-r--r--tests/various/hierarchy.sh1
-rw-r--r--tests/various/opt_rmdff.v50
-rw-r--r--tests/various/opt_rmdff.ys26
-rw-r--r--tests/various/pmux2shiftx.v34
-rw-r--r--tests/various/pmux2shiftx.ys28
-rw-r--r--tests/various/specify.v30
-rw-r--r--tests/various/specify.ys56
81 files changed, 1768 insertions, 17 deletions
diff --git a/tests/aiger/.gitignore b/tests/aiger/.gitignore
new file mode 100644
index 000000000..073f46157
--- /dev/null
+++ b/tests/aiger/.gitignore
@@ -0,0 +1,2 @@
+*.log
+*.out
diff --git a/tests/aiger/and_.aag b/tests/aiger/and_.aag
new file mode 100644
index 000000000..cadd505f0
--- /dev/null
+++ b/tests/aiger/and_.aag
@@ -0,0 +1,8 @@
+aag 3 2 0 1 1
+2
+4
+6
+6 2 4
+i0 pi0
+i1 pi1
+o0 po0
diff --git a/tests/aiger/and_.aig b/tests/aiger/and_.aig
new file mode 100644
index 000000000..13c7a0c17
--- /dev/null
+++ b/tests/aiger/and_.aig
@@ -0,0 +1,5 @@
+aig 3 2 0 1 1
+6
+i0 pi0
+i1 pi1
+o0 po0
diff --git a/tests/aiger/buffer.aag b/tests/aiger/buffer.aag
new file mode 100644
index 000000000..211106ed6
--- /dev/null
+++ b/tests/aiger/buffer.aag
@@ -0,0 +1,5 @@
+aag 1 1 0 1 0
+2
+2
+i0 pi0
+o0 po0
diff --git a/tests/aiger/buffer.aig b/tests/aiger/buffer.aig
new file mode 100644
index 000000000..01df6f1cf
--- /dev/null
+++ b/tests/aiger/buffer.aig
@@ -0,0 +1,4 @@
+aig 1 1 0 1 0
+2
+i0 pi0
+o0 po0
diff --git a/tests/aiger/cnt1.aag b/tests/aiger/cnt1.aag
new file mode 100644
index 000000000..75598862c
--- /dev/null
+++ b/tests/aiger/cnt1.aag
@@ -0,0 +1,4 @@
+aag 1 0 1 0 0 1
+2 3
+2
+b0 po0
diff --git a/tests/aiger/cnt1.aig b/tests/aiger/cnt1.aig
new file mode 100644
index 000000000..6fcf62522
--- /dev/null
+++ b/tests/aiger/cnt1.aig
@@ -0,0 +1,4 @@
+aig 1 0 1 0 0 1
+3
+2
+b0 po0
diff --git a/tests/aiger/cnt1e.aag b/tests/aiger/cnt1e.aag
new file mode 100644
index 000000000..35cd5a482
--- /dev/null
+++ b/tests/aiger/cnt1e.aag
@@ -0,0 +1,9 @@
+aag 5 1 1 0 3 1
+2
+4 10
+4
+6 5 3
+8 4 2
+10 9 7
+b0 AIGER_NEVER
+i0 po0
diff --git a/tests/aiger/cnt1e.aig b/tests/aiger/cnt1e.aig
new file mode 100644
index 000000000..7284dd42a
--- /dev/null
+++ b/tests/aiger/cnt1e.aig
@@ -0,0 +1,5 @@
+aig 5 1 1 0 3 1
+10
+4
+i0 po0
+b0 AIGER_NEVER
diff --git a/tests/aiger/empty.aag b/tests/aiger/empty.aag
new file mode 100644
index 000000000..40c0f00cb
--- /dev/null
+++ b/tests/aiger/empty.aag
@@ -0,0 +1 @@
+aag 0 0 0 0 0
diff --git a/tests/aiger/empty.aig b/tests/aiger/empty.aig
new file mode 100644
index 000000000..a28373cd3
--- /dev/null
+++ b/tests/aiger/empty.aig
@@ -0,0 +1 @@
+aig 0 0 0 0 0
diff --git a/tests/aiger/false.aag b/tests/aiger/false.aag
new file mode 100644
index 000000000..bab4a06a6
--- /dev/null
+++ b/tests/aiger/false.aag
@@ -0,0 +1,3 @@
+aag 0 0 0 1 0
+0
+o0 po0
diff --git a/tests/aiger/false.aig b/tests/aiger/false.aig
new file mode 100644
index 000000000..4dc442d7b
--- /dev/null
+++ b/tests/aiger/false.aig
@@ -0,0 +1,3 @@
+aig 0 0 0 1 0
+0
+o0 po0
diff --git a/tests/aiger/halfadder.aag b/tests/aiger/halfadder.aag
new file mode 100644
index 000000000..5bf54d38d
--- /dev/null
+++ b/tests/aiger/halfadder.aag
@@ -0,0 +1,14 @@
+aag 7 2 0 2 3
+2
+4
+6
+12
+6 13 15
+12 2 4
+14 3 5
+i0 x
+i1 y
+o0 s
+o1 c
+c
+half adder
diff --git a/tests/aiger/halfadder.aig b/tests/aiger/halfadder.aig
new file mode 100644
index 000000000..83727ee63
--- /dev/null
+++ b/tests/aiger/halfadder.aig
@@ -0,0 +1,9 @@
+aig 5 2 0 2 3
+10
+6
+i0 x
+i1 y
+o0 s
+o1 c
+c
+half adder
diff --git a/tests/aiger/inverter.aag b/tests/aiger/inverter.aag
new file mode 100644
index 000000000..428bad9e4
--- /dev/null
+++ b/tests/aiger/inverter.aag
@@ -0,0 +1,5 @@
+aag 1 1 0 1 0
+2
+3
+i0 pi0
+o0 po0
diff --git a/tests/aiger/inverter.aig b/tests/aiger/inverter.aig
new file mode 100644
index 000000000..5bec90ae3
--- /dev/null
+++ b/tests/aiger/inverter.aig
@@ -0,0 +1,4 @@
+aig 1 1 0 1 0
+3
+i0 pi0
+o0 po0
diff --git a/tests/aiger/notcnt1.aag b/tests/aiger/notcnt1.aag
new file mode 100644
index 000000000..e92815f23
--- /dev/null
+++ b/tests/aiger/notcnt1.aag
@@ -0,0 +1,4 @@
+aag 1 0 1 0 0 1
+2 3
+3
+b0 AIGER_NEVER
diff --git a/tests/aiger/notcnt1.aig b/tests/aiger/notcnt1.aig
new file mode 100644
index 000000000..f8a667f1f
--- /dev/null
+++ b/tests/aiger/notcnt1.aig
@@ -0,0 +1,4 @@
+aig 1 0 1 0 0 1
+3
+3
+b0 AIGER_NEVER
diff --git a/tests/aiger/notcnt1e.aag b/tests/aiger/notcnt1e.aag
new file mode 100644
index 000000000..2ed645d84
--- /dev/null
+++ b/tests/aiger/notcnt1e.aag
@@ -0,0 +1,9 @@
+aag 5 1 1 0 3 1
+2
+4 10
+5
+6 5 3
+8 4 2
+10 9 7
+b0 AIGER_NEVER
+i0 pi0
diff --git a/tests/aiger/notcnt1e.aig b/tests/aiger/notcnt1e.aig
new file mode 100644
index 000000000..fd7e94508
--- /dev/null
+++ b/tests/aiger/notcnt1e.aig
@@ -0,0 +1,5 @@
+aig 5 1 1 0 3 1
+10
+5
+i0 pi0
+b0 AIGER_NEVER
diff --git a/tests/aiger/or_.aag b/tests/aiger/or_.aag
new file mode 100644
index 000000000..0f619dba3
--- /dev/null
+++ b/tests/aiger/or_.aag
@@ -0,0 +1,8 @@
+aag 3 2 0 1 1
+2
+4
+7
+6 3 5
+i0 pi0
+i1 pi1
+o0 po0
diff --git a/tests/aiger/or_.aig b/tests/aiger/or_.aig
new file mode 100644
index 000000000..051687512
--- /dev/null
+++ b/tests/aiger/or_.aig
@@ -0,0 +1,5 @@
+aig 3 2 0 1 1
+7
+i0 pi0
+i1 pi1
+o0 po0
diff --git a/tests/aiger/run-test.sh b/tests/aiger/run-test.sh
new file mode 100755
index 000000000..f52eb4ac1
--- /dev/null
+++ b/tests/aiger/run-test.sh
@@ -0,0 +1,42 @@
+#!/bin/bash
+
+set -e
+
+# NB: *.aag and *.aig must contain a symbol table naming the primary
+# inputs and outputs, otherwise ABC and Yosys will name them
+# arbitrarily (and inconsistently with each other).
+
+for aag in *.aag; do
+ # Since ABC cannot read *.aag, read the *.aig instead
+ # (which would have been created by the reference aig2aig utility,
+ # available from http://fmv.jku.at/aiger/)
+ ../../yosys-abc -c "read -c ${aag%.*}.aig; write ${aag%.*}_ref.v"
+ ../../yosys -p "
+read_verilog ${aag%.*}_ref.v
+prep
+design -stash gold
+read_aiger -clk_name clock $aag
+prep
+design -stash gate
+design -import gold -as gold
+design -import gate -as gate
+miter -equiv -flatten -make_assert -make_outputs gold gate miter
+sat -verify -prove-asserts -show-ports -seq 16 miter
+"
+done
+
+for aig in *.aig; do
+ ../../yosys-abc -c "read -c $aig; write ${aig%.*}_ref.v"
+ ../../yosys -p "
+read_verilog ${aig%.*}_ref.v
+prep
+design -stash gold
+read_aiger -clk_name clock $aig
+prep
+design -stash gate
+design -import gold -as gold
+design -import gate -as gate
+miter -equiv -flatten -make_assert -make_outputs gold gate miter
+sat -verify -prove-asserts -show-ports -seq 16 miter
+"
+done
diff --git a/tests/aiger/toggle-re.aag b/tests/aiger/toggle-re.aag
new file mode 100644
index 000000000..b662bb386
--- /dev/null
+++ b/tests/aiger/toggle-re.aag
@@ -0,0 +1,14 @@
+aag 7 2 1 2 4
+2
+4
+6 8
+6
+7
+8 4 10
+10 13 15
+12 2 6
+14 3 7
+i0 enable
+i1 reset
+o0 Q
+o1 !Q
diff --git a/tests/aiger/toggle-re.aig b/tests/aiger/toggle-re.aig
new file mode 100644
index 000000000..9d6730f21
--- /dev/null
+++ b/tests/aiger/toggle-re.aig
@@ -0,0 +1,8 @@
+aig 7 2 1 2 4
+14
+6
+7
+i0 enable
+i1 reset
+o0 Q
+o1 !Q
diff --git a/tests/aiger/toggle.aag b/tests/aiger/toggle.aag
new file mode 100644
index 000000000..b1a1582d7
--- /dev/null
+++ b/tests/aiger/toggle.aag
@@ -0,0 +1,6 @@
+aag 1 0 1 2 0
+2 3
+2
+3
+o0 po0
+o1 po1
diff --git a/tests/aiger/toggle.aig b/tests/aiger/toggle.aig
new file mode 100644
index 000000000..68b41763f
--- /dev/null
+++ b/tests/aiger/toggle.aig
@@ -0,0 +1,6 @@
+aig 1 0 1 2 0
+3
+2
+3
+o0 po0
+o1 po1
diff --git a/tests/aiger/true.aag b/tests/aiger/true.aag
new file mode 100644
index 000000000..66a9eab46
--- /dev/null
+++ b/tests/aiger/true.aag
@@ -0,0 +1,3 @@
+aag 0 0 0 1 0
+1
+o0 po0
diff --git a/tests/aiger/true.aig b/tests/aiger/true.aig
new file mode 100644
index 000000000..f9bad6000
--- /dev/null
+++ b/tests/aiger/true.aig
@@ -0,0 +1,3 @@
+aig 0 0 0 1 0
+1
+o0 po0
diff --git a/tests/asicworld/xfirrtl b/tests/asicworld/xfirrtl
index c782a2bd6..08bf4ccd8 100644
--- a/tests/asicworld/xfirrtl
+++ b/tests/asicworld/xfirrtl
@@ -6,7 +6,6 @@ code_hdl_models_d_latch_gates.v combinational loop
code_hdl_models_dff_async_reset.v $adff
code_hdl_models_tff_async_reset.v $adff
code_hdl_models_uart.v $adff
-code_specman_switch_fabric.v subfield assignment (bits() <= ...)
code_tidbits_asyn_reset.v $adff
code_tidbits_reg_seq_example.v $adff
code_verilog_tutorial_always_example.v empty module
diff --git a/tests/liberty/.gitignore b/tests/liberty/.gitignore
new file mode 100644
index 000000000..e6ec49c4a
--- /dev/null
+++ b/tests/liberty/.gitignore
@@ -0,0 +1,2 @@
+*.log
+test.ys
diff --git a/tests/liberty/busdef.lib b/tests/liberty/busdef.lib
new file mode 100644
index 000000000..b5e3d50b9
--- /dev/null
+++ b/tests/liberty/busdef.lib
@@ -0,0 +1,81 @@
+/********************************************/
+/* */
+/* Supergate cell library for Bench marking */
+/* */
+/* Symbiotic EDA GmbH / Moseley Instruments */
+/* Niels A. Moseley */
+/* */
+/* Process: none */
+/* */
+/* Date : 02-11-2018 */
+/* Version: 1.0 */
+/* */
+/********************************************/
+
+library(supergate) {
+ technology (cmos);
+ revision : 1.0;
+
+ time_unit : "1ps";
+ pulling_resistance_unit : "1kohm";
+ voltage_unit : "1V";
+ current_unit : "1uA";
+
+ capacitive_load_unit(1,ff);
+
+ default_inout_pin_cap : 7.0;
+ default_input_pin_cap : 7.0;
+ default_output_pin_cap : 0.0;
+ default_fanout_load : 1.0;
+
+ default_wire_load_capacitance : 0.1;
+ default_wire_load_resistance : 1.0e-3;
+ default_wire_load_area : 0.0;
+
+ nom_process : 1.0;
+ nom_temperature : 25.0;
+ nom_voltage : 1.2;
+
+ delay_model : generic_cmos;
+
+ type( IO_bus_3_to_0 ) {
+ base_type : array ;
+ data_type : bit ;
+ bit_width : 4;
+ bit_from : 3 ;
+ bit_to : 0 ;
+ downto : true ;
+ }
+
+ cell (SRAM) {
+ area : 1 ;
+ memory() {
+ type : ram;
+ address_width : 4;
+ word_width : 4;
+ }
+ pin(CE1) {
+ direction : input;
+ capacitance : 0.021;
+ max_transition : 1.024;
+ switch_pin : true;
+ }
+ bus(I1) {
+ bus_type : IO_bus_3_to_0 ;
+ direction : input;
+ pin (I1[3:0]) {
+ timing() {
+ related_pin : "CE1" ;
+ timing_type : setup_rising ;
+ rise_constraint (scalar) {
+ values("0.0507786");
+ }
+ fall_constraint (scalar) {
+ values("0.0507786");
+ }
+ }
+ }
+ }
+ }
+
+} /* end */
diff --git a/tests/liberty/normal.lib b/tests/liberty/normal.lib
new file mode 100644
index 000000000..4621194dd
--- /dev/null
+++ b/tests/liberty/normal.lib
@@ -0,0 +1,359 @@
+/********************************************/
+/* */
+/* Supergate cell library for Bench marking */
+/* */
+/* Symbiotic EDA GmbH / Moseley Instruments */
+/* Niels A. Moseley */
+/* */
+/* Process: none */
+/* */
+/* Date : 02-11-2018 */
+/* Version: 1.0 */
+/* */
+/********************************************/
+
+library(supergate) {
+ technology (cmos);
+ revision : 1.0;
+
+ time_unit : "1ps";
+ pulling_resistance_unit : "1kohm";
+ voltage_unit : "1V";
+ current_unit : "1uA";
+
+ capacitive_load_unit(1,ff);
+
+ default_inout_pin_cap : 7.0;
+ default_input_pin_cap : 7.0;
+ default_output_pin_cap : 0.0;
+ default_fanout_load : 1.0;
+
+ default_wire_load_capacitance : 0.1;
+ default_wire_load_resistance : 1.0e-3;
+ default_wire_load_area : 0.0;
+
+ nom_process : 1.0;
+ nom_temperature : 25.0;
+ nom_voltage : 1.2;
+
+ delay_model : generic_cmos;
+
+ /* Inverter */
+ cell (inv) {
+ area : 1;
+ pin(A) {
+ direction : input;
+ }
+
+ pin(Y) {
+ direction : output;
+ function : "A'";
+ }
+ }
+
+ /* tri-state inverter */
+ cell (tri_inv) {
+ area : 4;
+ pin(A) {
+ direction : input;
+ }
+ pin(S) {
+ direction : input;
+ }
+ pin(Z) {
+ direction : output;
+ function : "A'";
+ three_State : "S'";
+ }
+ }
+
+ cell (buffer) {
+ area : 5;
+ pin(A) {
+ direction : input;
+ }
+ pin(Y) {
+ direction : output;
+ function : "A";
+ }
+ }
+
+ /* 2-input NAND gate */
+ cell (nand2) {
+ area : 3;
+ pin(A) {
+ direction : input;
+ }
+ pin(B) {
+ direction : input;
+ }
+ pin(Y) {
+ direction: output;
+ function : "(A * B)'";
+ }
+ }
+
+ /* 2-input NOR gate */
+ cell (nor2) {
+ area : 3;
+ pin(A) {
+ direction : input;
+ }
+ pin(B) {
+ direction : input;
+ }
+ pin(Y) {
+ direction: output;
+ function : "(A + B)'";
+ }
+ }
+
+ /* 2-input XOR */
+ cell (xor2) {
+ area : 6;
+ pin(A) {
+ direction : input;
+ }
+ pin(B) {
+ direction : input;
+ }
+ pin(Y) {
+ direction: output;
+ function : "(A *B') + (A' * B)";
+ }
+ }
+
+ /* 2-input inverting MUX */
+ cell (imux2) {
+ area : 5;
+ pin(A) {
+ direction : input;
+ }
+ pin(B) {
+ direction : input;
+ }
+ pin(S) {
+ direction : input;
+ }
+ pin(Y) {
+ direction: output;
+ function : "( (A * S) + (B * S') )'";
+ }
+ }
+
+ /* D-type flip-flop with asynchronous reset and preset */
+ cell (dff) {
+ area : 6;
+ ff("IQ", "IQN") {
+ next_state : "D";
+ clocked_on : "CLK";
+ clear : "RESET";
+ preset : "PRESET";
+ clear_preset_var1 : L;
+ clear_preset_var2 : L;
+ }
+ pin(D) {
+ direction : input;
+ }
+ pin(CLK) {
+ direction : input;
+ }
+ pin(RESET) {
+ direction : input;
+ }
+ pin(PRESET) {
+ direction : input;
+ }
+ pin(Q) {
+ direction: output;
+ function : "IQ";
+ timing() {
+ timing_type : rising_edge;
+ intrinsic_rise : 65;
+ intrinsic_fall : 65;
+ rise_resistance : 0;
+ fall_resistance : 0;
+ related_pin : "CLK";
+ }
+ timing () {
+ timing_type : clear;
+ timing_sense : positive_unate;
+ intrinsic_fall : 75;
+ related_pin : "RESET";
+ }
+ timing () {
+ timing_type : preset;
+ timing_sense : negative_unate;
+ intrinsic_rise : 75;
+ related_pin : "PRESET";
+ }
+ }
+ pin(QN) {
+ direction: output;
+ function : "IQN";
+ timing() {
+ timing_type : rising_edge;
+ intrinsic_rise : 65;
+ intrinsic_fall : 65;
+ rise_resistance : 0;
+ fall_resistance : 0;
+ related_pin : "CLK";
+ }
+ timing () {
+ timing_type : preset;
+ timing_sense : negative_unate;
+ intrinsic_rise : 75;
+ related_pin : "RESET";
+ }
+ timing () {
+ timing_type : clear;
+ timing_sense : positive_unate;
+ intrinsic_fall : 75;
+ related_pin : "PRESET";
+ }
+ }
+ }
+
+ /* Latch */
+ cell(latch) {
+ area : 5;
+ latch ("IQ","IQN") {
+ enable : "G";
+ data_in : "D";
+ }
+
+ pin(D) {
+ direction : input;
+ }
+ pin(G) {
+ direction : input;
+ }
+
+ pin(Q) {
+ direction : output;
+ function : "IQ";
+ internal_node : "Q";
+
+ timing() {
+ timing_type : rising_edge;
+ intrinsic_rise : 65;
+ intrinsic_fall : 65;
+ rise_resistance : 0;
+ fall_resistance : 0;
+ related_pin : "G";
+ }
+
+ timing() {
+ timing_sense : positive_unate;
+ intrinsic_rise : 65;
+ intrinsic_fall : 65;
+ rise_resistance : 0;
+ fall_resistance : 0;
+ related_pin : "D";
+ }
+ }
+
+ pin(QN) {
+ direction : output;
+ function : "IQN";
+ internal_node : "QN";
+
+ timing() {
+ timing_type : rising_edge;
+ intrinsic_rise : 65;
+ intrinsic_fall : 65;
+ rise_resistance : 0;
+ fall_resistance : 0;
+ related_pin : "G";
+ }
+
+ timing() {
+ timing_sense : negative_unate;
+ intrinsic_rise : 65;
+ intrinsic_fall : 65;
+ rise_resistance : 0;
+ fall_resistance : 0;
+ related_pin : "D";
+ }
+ }
+ }
+
+ /* 3 input AND-OR-INVERT gate */
+ cell (aoi211) {
+ area : 3;
+ pin(A) {
+ direction : input;
+ }
+ pin(B) {
+ direction : input;
+ }
+ pin(C) {
+ direction : input;
+ }
+ pin(Y) {
+ direction: output;
+ function : "((A * B) + C)'";
+ }
+ }
+
+
+ /* 3 input OR-AND-INVERT gate */
+ cell (oai211) {
+ area : 3;
+ pin(A) {
+ direction : input;
+ }
+ pin(B) {
+ direction : input;
+ }
+ pin(C) {
+ direction : input;
+ }
+ pin(Y) {
+ direction: output;
+ function : "((A + B) * C)'";
+ }
+ }
+
+ /* half adder */
+ cell (halfadder) {
+ area : 5;
+ pin(A) {
+ direction : input;
+ }
+ pin(B) {
+ direction : input;
+ }
+ pin(C) {
+ direction : output;
+ function : "(A * B)";
+ }
+ pin(Y) {
+ direction: output;
+ function : "(A *B') + (A' * B)";
+ }
+ }
+
+ /* full adder */
+ cell (fulladder) {
+ area : 8;
+ pin(A) {
+ direction : input;
+ }
+ pin(B) {
+ direction : input;
+ }
+ pin(CI) {
+ direction : input;
+ }
+ pin(CO) {
+ direction : output;
+ function : "(((A * B)+(B * CI))+(CI * A))";
+ }
+ pin(Y) {
+ direction: output;
+ function : "((A^B)^CI)";
+ }
+ }
+
+} /* end */
diff --git a/tests/liberty/processdefs.lib b/tests/liberty/processdefs.lib
new file mode 100644
index 000000000..37a6bbaf8
--- /dev/null
+++ b/tests/liberty/processdefs.lib
@@ -0,0 +1,48 @@
+/********************************************/
+/* */
+/* Supergate cell library for Bench marking */
+/* */
+/* Symbiotic EDA GmbH / Moseley Instruments */
+/* Niels A. Moseley */
+/* */
+/* Process: none */
+/* */
+/* Date : 25-03-2019 */
+/* Version: 1.0 */
+/* */
+/********************************************/
+
+library(processdefs) {
+ technology (cmos);
+ revision : 1.0;
+
+ time_unit : "1ps";
+ pulling_resistance_unit : "1kohm";
+ voltage_unit : "1V";
+ current_unit : "1uA";
+
+ capacitive_load_unit(1,ff);
+
+ default_inout_pin_cap : 7.0;
+ default_input_pin_cap : 7.0;
+ default_output_pin_cap : 0.0;
+ default_fanout_load : 1.0;
+
+ default_wire_load_capacitance : 0.1;
+ default_wire_load_resistance : 1.0e-3;
+ default_wire_load_area : 0.0;
+
+ nom_process : 1.0;
+ nom_temperature : 25.0;
+ nom_voltage : 1.2;
+
+ delay_model : generic_cmos;
+
+ define_cell_area(bond_pads,pad_slots)
+ input_voltage(cmos) {
+ vil : 0.3 * VDD ;
+ vih : 0.7 * VDD ;
+ vimin : -0.5 ;
+ vimax : VDD + 0.5 ;
+ }
+}
diff --git a/tests/liberty/run-test.sh b/tests/liberty/run-test.sh
new file mode 100755
index 000000000..7e2ed2370
--- /dev/null
+++ b/tests/liberty/run-test.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+set -e
+
+for x in *.lib; do
+ echo "Running $x.."
+ echo "read_verilog small.v" > test.ys
+ echo "synth -top small" >> test.ys
+ echo "dfflibmap -liberty ${x}" >> test.ys
+ ../../yosys -ql ${x%.lib}.log -s test.ys
+done
diff --git a/tests/liberty/semicolextra.lib b/tests/liberty/semicolextra.lib
new file mode 100644
index 000000000..6a7fa77cc
--- /dev/null
+++ b/tests/liberty/semicolextra.lib
@@ -0,0 +1,48 @@
+/*
+
+ Test case for https://www.reddit.com/r/yosys/comments/b5texg/yosys_fails_to_parse_apparentlycorrect_liberty/
+
+ fall_constraint (SETUP_HOLD) formatting.
+
+*/
+
+library(supergate) {
+ technology (cmos);
+ revision : 1.0;
+
+ cell (DFF) {
+ cell_footprint : dff;
+ area : 50;
+ pin(D) {
+ direction : input;
+ capacitance : 0.002;
+ timing() {
+ related_pin : "CK";
+ timing_type : setup_rising;
+
+ fall_constraint (SETUP_HOLD) { values ("0.4000, 0.3000, 0.2000, 0.1000, 0.0000", \
+ "0.4000, 0.3000, 0.2000, 0.1000, 0.000", \
+ "0.5000, 0.4000, 0.3000, 0.2000, 0.0000", \
+ "0.7000, 0.6000, 0.5000, 0.4000, 0.2000", \
+ "1.0000, 1.0000, 0.9000, 0.8000, 0.6000"); };
+ }
+ }
+
+ pin(CK) {
+ direction : input;
+ clock : true;
+ capacitance : 0.00290;
+ }
+
+ ff(IQ,IQN) {
+ clocked_on : "CK";
+ next_state : "D";
+ }
+ pin(Q) {
+ direction : output;
+ capacitance : 0.003;
+ max_capacitance : 0.3;
+ }
+ cell_leakage_power : 0.3;
+ }
+}
diff --git a/tests/liberty/semicolmissing.lib b/tests/liberty/semicolmissing.lib
new file mode 100644
index 000000000..f7c20750a
--- /dev/null
+++ b/tests/liberty/semicolmissing.lib
@@ -0,0 +1,72 @@
+/********************************************/
+/* */
+/* Supergate cell library for Bench marking */
+/* */
+/* Symbiotic EDA GmbH / Moseley Instruments */
+/* Niels A. Moseley */
+/* */
+/* Process: none */
+/* */
+/* Date : 24-03-2019 */
+/* Version: 1.0 */
+/* Version: 1.1 - Removed semicolons in */
+/* full adder */
+/* */
+/********************************************/
+
+/*
+ semi colon is missing in full-adder specification
+ some TSMC liberty files are formatted this way..
+*/
+
+library(supergate) {
+ technology (cmos);
+ revision : 1.0;
+
+ time_unit : "1ps";
+ pulling_resistance_unit : "1kohm";
+ voltage_unit : "1V";
+ current_unit : "1uA";
+
+ capacitive_load_unit(1,ff);
+
+ default_inout_pin_cap : 7.0;
+ default_input_pin_cap : 7.0;
+ default_output_pin_cap : 0.0;
+ default_fanout_load : 1.0;
+
+ default_wire_load_capacitance : 0.1;
+ default_wire_load_resistance : 1.0e-3;
+ default_wire_load_area : 0.0;
+
+ nom_process : 1.0;
+ nom_temperature : 25.0;
+ nom_voltage : 1.2;
+
+ delay_model : generic_cmos;
+
+ /* full adder */
+ cell (fulladder) {
+ area : 8
+ pin(A) {
+ direction : input
+ }
+ pin(B) {
+ direction : input
+ }
+ pin(CI) {
+ direction : input
+ }
+ pin(CO) {
+ direction : output
+ function : "(((A * B)+(B * CI))+(CI * A))"
+ }
+ pin(Y) {
+ direction: output
+ function : "((A^B)^CI)"
+ }
+ }
+
+} /* end */
+
+
diff --git a/tests/liberty/small.v b/tests/liberty/small.v
new file mode 100644
index 000000000..bd94be4fc
--- /dev/null
+++ b/tests/liberty/small.v
@@ -0,0 +1,16 @@
+/** small, meaningless design to test loading of liberty files */
+
+module small
+(
+ input clk,
+ output reg[7:0] count
+);
+
+initial count = 0;
+
+always @ (posedge clk)
+begin
+ count <= count + 1'b1;
+end
+
+endmodule
diff --git a/tests/memories/firrtl_938.v b/tests/memories/firrtl_938.v
new file mode 100644
index 000000000..af5efcd25
--- /dev/null
+++ b/tests/memories/firrtl_938.v
@@ -0,0 +1,22 @@
+module top
+(
+ input [7:0] data_a,
+ input [6:1] addr_a,
+ input we_a, clk,
+ output reg [7:0] q_a
+);
+ // Declare the RAM variable
+ reg [7:0] ram[63:0];
+
+ // Port A
+ always @ (posedge clk)
+ begin
+ if (we_a)
+ begin
+ ram[addr_a] <= data_a;
+ q_a <= data_a;
+ end
+ q_a <= ram[addr_a];
+ end
+
+endmodule
diff --git a/tests/sat/counters-repeat.v b/tests/sat/counters-repeat.v
new file mode 100644
index 000000000..2ea45499a
--- /dev/null
+++ b/tests/sat/counters-repeat.v
@@ -0,0 +1,38 @@
+// coverage for repeat loops outside of constant functions
+
+module counter1(clk, rst, ping);
+ input clk, rst;
+ output ping;
+ reg [31:0] count;
+
+ always @(posedge clk) begin
+ if (rst)
+ count <= 0;
+ else
+ count <= count + 1;
+ end
+
+ assign ping = &count;
+endmodule
+
+module counter2(clk, rst, ping);
+ input clk, rst;
+ output ping;
+ reg [31:0] count;
+
+ integer i;
+ reg carry;
+
+ always @(posedge clk) begin
+ carry = 1;
+ i = 0;
+ repeat (32) begin
+ count[i] <= !rst & (count[i] ^ carry);
+ carry = count[i] & carry;
+ i = i+1;
+ end
+ end
+
+ assign ping = &count;
+endmodule
+
diff --git a/tests/sat/counters-repeat.ys b/tests/sat/counters-repeat.ys
new file mode 100644
index 000000000..b3dcfe08a
--- /dev/null
+++ b/tests/sat/counters-repeat.ys
@@ -0,0 +1,10 @@
+
+read_verilog counters-repeat.v
+proc; opt
+
+expose -shared counter1 counter2
+miter -equiv -make_assert -make_outputs counter1 counter2 miter
+
+cd miter; flatten; opt
+sat -verify -prove-asserts -tempinduct -set-at 1 in_rst 1 -seq 1 -show-inputs -show-outputs
+
diff --git a/tests/simple/attrib01_module.v b/tests/simple/attrib01_module.v
new file mode 100644
index 000000000..adef34f5b
--- /dev/null
+++ b/tests/simple/attrib01_module.v
@@ -0,0 +1,21 @@
+module bar(clk, rst, inp, out);
+ input wire clk;
+ input wire rst;
+ input wire inp;
+ output reg out;
+
+ always @(posedge clk)
+ if (rst) out <= 1'd0;
+ else out <= ~inp;
+
+endmodule
+
+module foo(clk, rst, inp, out);
+ input wire clk;
+ input wire rst;
+ input wire inp;
+ output wire out;
+
+ bar bar_instance (clk, rst, inp, out);
+endmodule
+
diff --git a/tests/simple/attrib02_port_decl.v b/tests/simple/attrib02_port_decl.v
new file mode 100644
index 000000000..3505e7265
--- /dev/null
+++ b/tests/simple/attrib02_port_decl.v
@@ -0,0 +1,25 @@
+module bar(clk, rst, inp, out);
+ (* this_is_clock = 1 *)
+ input wire clk;
+ (* this_is_reset = 1 *)
+ input wire rst;
+ input wire inp;
+ (* an_output_register = 1*)
+ output reg out;
+
+ always @(posedge clk)
+ if (rst) out <= 1'd0;
+ else out <= ~inp;
+
+endmodule
+
+module foo(clk, rst, inp, out);
+ (* this_is_the_master_clock *)
+ input wire clk;
+ input wire rst;
+ input wire inp;
+ output wire out;
+
+ bar bar_instance (clk, rst, inp, out);
+endmodule
+
diff --git a/tests/simple/attrib03_parameter.v b/tests/simple/attrib03_parameter.v
new file mode 100644
index 000000000..562d225cd
--- /dev/null
+++ b/tests/simple/attrib03_parameter.v
@@ -0,0 +1,28 @@
+module bar(clk, rst, inp, out);
+
+ (* bus_width *)
+ parameter WIDTH = 2;
+
+ (* an_attribute_on_localparam = 55 *)
+ localparam INCREMENT = 5;
+
+ input wire clk;
+ input wire rst;
+ input wire [WIDTH-1:0] inp;
+ output reg [WIDTH-1:0] out;
+
+ always @(posedge clk)
+ if (rst) out <= 0;
+ else out <= inp + INCREMENT;
+
+endmodule
+
+module foo(clk, rst, inp, out);
+ input wire clk;
+ input wire rst;
+ input wire [7:0] inp;
+ output wire [7:0] out;
+
+ bar # (.WIDTH(8)) bar_instance (clk, rst, inp, out);
+endmodule
+
diff --git a/tests/simple/attrib04_net_var.v b/tests/simple/attrib04_net_var.v
new file mode 100644
index 000000000..8b5523406
--- /dev/null
+++ b/tests/simple/attrib04_net_var.v
@@ -0,0 +1,32 @@
+module bar(clk, rst, inp, out);
+ input wire clk;
+ input wire rst;
+ input wire inp;
+ output reg out;
+
+ (* this_is_a_prescaler *)
+ reg [7:0] counter;
+
+ (* temp_wire *)
+ wire out_val;
+
+ always @(posedge clk)
+ counter <= counter + 1;
+
+ assign out_val = inp ^ counter[4];
+
+ always @(posedge clk)
+ if (rst) out <= 1'd0;
+ else out <= out_val;
+
+endmodule
+
+module foo(clk, rst, inp, out);
+ input wire clk;
+ input wire rst;
+ input wire inp;
+ output wire out;
+
+ bar bar_instance (clk, rst, inp, out);
+endmodule
+
diff --git a/tests/simple/attrib05_port_conn.v.DISABLED b/tests/simple/attrib05_port_conn.v.DISABLED
new file mode 100644
index 000000000..e20e66319
--- /dev/null
+++ b/tests/simple/attrib05_port_conn.v.DISABLED
@@ -0,0 +1,21 @@
+module bar(clk, rst, inp, out);
+ input wire clk;
+ input wire rst;
+ input wire inp;
+ output reg out;
+
+ always @(posedge clk)
+ if (rst) out <= 1'd0;
+ else out <= ~inp;
+
+endmodule
+
+module foo(clk, rst, inp, out);
+ input wire clk;
+ input wire rst;
+ input wire inp;
+ output wire out;
+
+ bar bar_instance ( (* clock_connected *) clk, rst, (* this_is_the_input *) inp, out);
+endmodule
+
diff --git a/tests/simple/attrib06_operator_suffix.v b/tests/simple/attrib06_operator_suffix.v
new file mode 100644
index 000000000..e21173c58
--- /dev/null
+++ b/tests/simple/attrib06_operator_suffix.v
@@ -0,0 +1,23 @@
+module bar(clk, rst, inp_a, inp_b, out);
+ input wire clk;
+ input wire rst;
+ input wire [7:0] inp_a;
+ input wire [7:0] inp_b;
+ output reg [7:0] out;
+
+ always @(posedge clk)
+ if (rst) out <= 0;
+ else out <= inp_a + (* ripple_adder *) inp_b;
+
+endmodule
+
+module foo(clk, rst, inp_a, inp_b, out);
+ input wire clk;
+ input wire rst;
+ input wire [7:0] inp_a;
+ input wire [7:0] inp_b;
+ output wire [7:0] out;
+
+ bar bar_instance (clk, rst, inp_a, inp_b, out);
+endmodule
+
diff --git a/tests/simple/attrib07_func_call.v.DISABLED b/tests/simple/attrib07_func_call.v.DISABLED
new file mode 100644
index 000000000..f55ef2316
--- /dev/null
+++ b/tests/simple/attrib07_func_call.v.DISABLED
@@ -0,0 +1,21 @@
+function [7:0] do_add;
+ input [7:0] inp_a;
+ input [7:0] inp_b;
+
+ do_add = inp_a + inp_b;
+
+endfunction
+
+module foo(clk, rst, inp_a, inp_b, out);
+ input wire clk;
+ input wire rst;
+ input wire [7:0] inp_a;
+ input wire [7:0] inp_b;
+ output wire [7:0] out;
+
+ always @(posedge clk)
+ if (rst) out <= 0;
+ else out <= do_add (* combinational_adder *) (inp_a, inp_b);
+
+endmodule
+
diff --git a/tests/simple/attrib08_mod_inst.v b/tests/simple/attrib08_mod_inst.v
new file mode 100644
index 000000000..c5a32234e
--- /dev/null
+++ b/tests/simple/attrib08_mod_inst.v
@@ -0,0 +1,22 @@
+module bar(clk, rst, inp, out);
+ input wire clk;
+ input wire rst;
+ input wire inp;
+ output reg out;
+
+ always @(posedge clk)
+ if (rst) out <= 1'd0;
+ else out <= ~inp;
+
+endmodule
+
+module foo(clk, rst, inp, out);
+ input wire clk;
+ input wire rst;
+ input wire inp;
+ output wire out;
+
+ (* my_module_instance = 99 *)
+ bar bar_instance (clk, rst, inp, out);
+endmodule
+
diff --git a/tests/simple/attrib09_case.v b/tests/simple/attrib09_case.v
new file mode 100644
index 000000000..8551bf9d0
--- /dev/null
+++ b/tests/simple/attrib09_case.v
@@ -0,0 +1,26 @@
+module bar(clk, rst, inp, out);
+ input wire clk;
+ input wire rst;
+ input wire [1:0] inp;
+ output reg [1:0] out;
+
+ always @(inp)
+ (* full_case, parallel_case *)
+ case(inp)
+ 2'd0: out <= 2'd3;
+ 2'd1: out <= 2'd2;
+ 2'd2: out <= 2'd1;
+ 2'd3: out <= 2'd0;
+ endcase
+
+endmodule
+
+module foo(clk, rst, inp, out);
+ input wire clk;
+ input wire rst;
+ input wire [1:0] inp;
+ output wire [1:0] out;
+
+ bar bar_instance (clk, rst, inp, out);
+endmodule
+
diff --git a/tests/simple/dff_init.v b/tests/simple/dff_init.v
index be947042e..375ea5c4d 100644
--- a/tests/simple/dff_init.v
+++ b/tests/simple/dff_init.v
@@ -40,3 +40,15 @@ module dff1a_test(n1, n1_inv, clk);
n1 <= n1_inv;
assign n1_inv = ~n1;
endmodule
+
+module dff_test_997 (y, clk, wire4);
+// https://github.com/YosysHQ/yosys/issues/997
+ output wire [1:0] y;
+ input clk;
+ input signed wire4;
+ reg [1:0] reg10 = 0;
+ always @(posedge clk) begin
+ reg10 <= wire4;
+ end
+ assign y = reg10;
+endmodule
diff --git a/tests/simple/forloops.v b/tests/simple/forloops.v
new file mode 100644
index 000000000..8665222d8
--- /dev/null
+++ b/tests/simple/forloops.v
@@ -0,0 +1,25 @@
+module forloops01 (input clk, a, b, output reg [3:0] p, q, x, y);
+ integer k;
+ always @(posedge clk) begin
+ for (k=0; k<2; k=k+1)
+ p[2*k +: 2] = {a, b} ^ {2{k}};
+ x <= k + {a, b};
+ end
+ always @* begin
+ for (k=0; k<4; k=k+1)
+ q[k] = {~a, ~b, a, b} >> k[1:0];
+ y = k - {a, b};
+ end
+endmodule
+
+module forloops02 (input clk, a, b, output reg [3:0] q, x, output [3:0] y);
+ integer k;
+ always @* begin
+ for (k=0; k<4; k=k+1)
+ q[k] = {~a, ~b, a, b} >> k[1:0];
+ end
+ always @* begin
+ x = k + {a, b};
+ end
+ assign y = k - {a, b};
+endmodule
diff --git a/tests/simple/generate.v b/tests/simple/generate.v
index 24eb4462c..3c55682cb 100644
--- a/tests/simple/generate.v
+++ b/tests/simple/generate.v
@@ -90,5 +90,61 @@ generate
endcase
end
endgenerate
+endmodule
+
+// ------------------------------------------
+
+module gen_test4(a, b);
+
+input [3:0] a;
+output [3:0] b;
+
+genvar i;
+generate
+ for (i=0; i < 3; i=i+1) begin : foo
+ localparam PREV = i - 1;
+ wire temp;
+ if (i == 0)
+ assign temp = a[0];
+ else
+ assign temp = foo[PREV].temp & a[i];
+ assign b[i] = temp;
+ end
+endgenerate
+endmodule
+
+// ------------------------------------------
+
+module gen_test5(input_bits, out);
+
+parameter WIDTH = 256;
+parameter CHUNK = 4;
+input [WIDTH-1:0] input_bits;
+output out;
+
+genvar step, i, j;
+generate
+ for (step = 1; step <= WIDTH; step = step * CHUNK) begin : steps
+ localparam PREV = step / CHUNK;
+ localparam DIM = WIDTH / step;
+ for (i = 0; i < DIM; i = i + 1) begin : outer
+ localparam LAST_START = i * CHUNK;
+ for (j = 0; j < CHUNK; j = j + 1) begin : inner
+ wire temp;
+ if (step == 1)
+ assign temp = input_bits[i];
+ else if (j == 0)
+ assign temp = steps[PREV].outer[LAST_START].val;
+ else
+ assign temp
+ = steps[step].outer[i].inner[j-1].temp
+ & steps[PREV].outer[LAST_START + j].val;
+ end
+ wire val;
+ assign val = steps[step].outer[i].inner[CHUNK - 1].temp;
+ end
+ end
+endgenerate
+assign out = steps[WIDTH].outer[0].val;
endmodule
diff --git a/tests/simple/implicit_ports.v b/tests/simple/implicit_ports.v
new file mode 100644
index 000000000..8b0a6f386
--- /dev/null
+++ b/tests/simple/implicit_ports.v
@@ -0,0 +1,16 @@
+// Test implicit port connections
+module alu (input [2:0] a, input [2:0] b, input cin, output cout, output [2:0] result);
+ assign cout = cin;
+ assign result = a + b;
+endmodule
+
+module named_ports(input [2:0] a, b, output [2:0] alu_result, output cout);
+ wire cin = 1;
+ alu alu (
+ .a(a),
+ .b, // Implicit connection is equivalent to .b(b)
+ .cin(), // Explicitely unconnected
+ .cout(cout),
+ .result(alu_result)
+ );
+endmodule
diff --git a/tests/simple/localparam_attr.v b/tests/simple/localparam_attr.v
new file mode 100644
index 000000000..2ef76c71c
--- /dev/null
+++ b/tests/simple/localparam_attr.v
@@ -0,0 +1,11 @@
+module uut_localparam_attr (I, O);
+
+(* LOCALPARAM_ATTRIBUTE = "attribute_content" *)
+localparam WIDTH = 1;
+
+input wire [WIDTH-1:0] I;
+output wire [WIDTH-1:0] O;
+
+assign O = I;
+
+endmodule
diff --git a/tests/simple/mem2reg.v b/tests/simple/mem2reg.v
index 9839fd4a8..100426785 100644
--- a/tests/simple/mem2reg.v
+++ b/tests/simple/mem2reg.v
@@ -92,3 +92,25 @@ module mem2reg_test5(input ctrl, output out);
assign out = bar[foo[0]];
endmodule
+// ------------------------------------------------------
+
+module mem2reg_test6 (din, dout);
+ input wire [3:0] din;
+ output reg [3:0] dout;
+
+ reg [1:0] din_array [1:0];
+ reg [1:0] dout_array [1:0];
+
+ always @* begin
+ din_array[0] = din[0 +: 2];
+ din_array[1] = din[2 +: 2];
+
+ dout_array[0] = din_array[0];
+ dout_array[1] = din_array[1];
+
+ {dout_array[0][1], dout_array[0][0]} = dout_array[0][0] + dout_array[1][0];
+
+ dout[0 +: 2] = dout_array[0];
+ dout[2 +: 2] = dout_array[1];
+ end
+endmodule
diff --git a/tests/simple/param_attr.v b/tests/simple/param_attr.v
new file mode 100644
index 000000000..34d63a34e
--- /dev/null
+++ b/tests/simple/param_attr.v
@@ -0,0 +1,11 @@
+module uut_param_attr (I, O);
+
+(* PARAMETER_ATTRIBUTE = "attribute_content" *)
+parameter WIDTH = 1;
+
+input wire [WIDTH-1:0] I;
+output wire [WIDTH-1:0] O;
+
+assign O = I;
+
+endmodule
diff --git a/tests/simple/peepopt.v b/tests/simple/peepopt.v
new file mode 100644
index 000000000..1bf427897
--- /dev/null
+++ b/tests/simple/peepopt.v
@@ -0,0 +1,13 @@
+module peepopt_shiftmul_0 #(parameter N=3, parameter W=3) (input [N*W-1:0] i, input [$clog2(N)-1:0] s, output [W-1:0] o);
+assign o = i[s*W+:W];
+endmodule
+
+module peepopt_shiftmul_1 (output y, input [2:0] w);
+assign y = 1'b1 >> (w * (3'b110));
+endmodule
+
+module peepopt_muldiv_0(input [1:0] i, output [1:0] o);
+wire [3:0] t;
+assign t = i * 3;
+assign o = t / 3;
+endmodule
diff --git a/tests/simple/retime.v b/tests/simple/retime.v
new file mode 100644
index 000000000..30b6087dc
--- /dev/null
+++ b/tests/simple/retime.v
@@ -0,0 +1,6 @@
+module retime_test(input clk, input [7:0] a, output z);
+ reg [7:0] ff = 8'hF5;
+ always @(posedge clk)
+ ff <= {ff[6:0], ^a};
+ assign z = ff[7];
+endmodule
diff --git a/tests/simple/run-test.sh b/tests/simple/run-test.sh
index aaa1cf940..967ac49f2 100755
--- a/tests/simple/run-test.sh
+++ b/tests/simple/run-test.sh
@@ -17,4 +17,5 @@ if ! which iverilog > /dev/null ; then
exit 1
fi
-exec ${MAKE:-make} -f ../tools/autotest.mk $seed *.v
+shopt -s nullglob
+exec ${MAKE:-make} -f ../tools/autotest.mk $seed *.{sv,v}
diff --git a/tests/simple/task_func.v b/tests/simple/task_func.v
index fa50c1d5c..f6e902f63 100644
--- a/tests/simple/task_func.v
+++ b/tests/simple/task_func.v
@@ -120,3 +120,22 @@ module task_func_test04(input [7:0] in, output [7:0] out1, out2, out3, out4);
assign out3 = test3(in);
assign out4 = test4(in);
endmodule
+
+// -------------------------------------------------------------------
+
+// https://github.com/YosysHQ/yosys/issues/857
+module task_func_test05(data_in,data_out,clk);
+ output reg data_out;
+ input data_in;
+ input clk;
+
+ task myTask;
+ output out;
+ input in;
+ out = in;
+ endtask
+
+ always @(posedge clk) begin
+ myTask(data_out,data_in);
+ end
+endmodule
diff --git a/tests/simple/wandwor.v b/tests/simple/wandwor.v
new file mode 100644
index 000000000..34404aa26
--- /dev/null
+++ b/tests/simple/wandwor.v
@@ -0,0 +1,36 @@
+module wandwor_test0 (A, B, C, D, X, Y, Z);
+ input A, B, C, D;
+ output wor X;
+ output wand Y;
+ output Z;
+
+ assign X = A, X = B, Y = C, Y = D;
+ foo foo_0 (C, D, X);
+ foo foo_1 (A, B, Y);
+ foo foo_2 (X, Y, Z);
+endmodule
+
+module wandwor_test1 (A, B, C, D, X, Y, Z);
+ input [3:0] A, B, C, D;
+ output wor [3:0] X;
+ output wand [3:0] Y;
+ output Z;
+
+ bar bar_inst (
+ .I0({A, B}),
+ .I1({B, A}),
+ .O({X, Y})
+ );
+
+ assign X = C, X = D;
+ assign Y = C, Y = D;
+ assign Z = ^{X,Y};
+endmodule
+
+module foo(input I0, I1, output O);
+ assign O = I0 ^ I1;
+endmodule
+
+module bar(input [7:0] I0, I1, output [7:0] O);
+ assign O = I0 + I1;
+endmodule
diff --git a/tests/simple/xfirrtl b/tests/simple/xfirrtl
index 00e89b389..ba61a4476 100644
--- a/tests/simple/xfirrtl
+++ b/tests/simple/xfirrtl
@@ -1,6 +1,7 @@
# This file contains the names of verilog files to exclude from verilog to FIRRTL regression tests due to known failures.
arraycells.v inst id[0] of
dff_different_styles.v
+dff_init.v Initial value not supported
generate.v combinational loop
hierdefparam.v inst id[0] of
i2c_master_tests.v $adff
@@ -12,10 +13,10 @@ multiplier.v inst id[0] of
muxtree.v drops modules
omsp_dbg_uart.v $adff
operators.v $pow
-paramods.v subfield assignment (bits() <= ...)
partsel.v drops modules
process.v drops modules
realexpr.v drops modules
+retime.v Initial value (11110101) for (retime_test.ff) not supported
scopes.v original verilog issues ( -x where x isn't declared signed)
sincos.v $adff
specify.v no code (empty module generates error
diff --git a/tests/sva/extnets.sv b/tests/sva/extnets.sv
new file mode 100644
index 000000000..47312de7a
--- /dev/null
+++ b/tests/sva/extnets.sv
@@ -0,0 +1,22 @@
+module top(input i, output o);
+ A A();
+ B B();
+ assign A.i = i;
+ assign o = B.o;
+ always @* assert(o == i);
+endmodule
+
+module A;
+ wire i, y;
+`ifdef FAIL
+ assign B.x = i;
+`else
+ assign B.x = !i;
+`endif
+ assign y = !B.y;
+endmodule
+
+module B;
+ wire x, y, o;
+ assign y = x, o = A.y;
+endmodule
diff --git a/tests/svinterfaces/runone.sh b/tests/svinterfaces/runone.sh
index 0adecc797..54cf5f2ec 100755
--- a/tests/svinterfaces/runone.sh
+++ b/tests/svinterfaces/runone.sh
@@ -11,12 +11,12 @@ echo "" > $STDERRFILE
echo -n "Test: ${TESTNAME} -> "
-$PWD/../../yosys -p "read_verilog -sv ${TESTNAME}.sv ; hierarchy -check -top TopModule ; synth ; write_verilog ${TESTNAME}_syn.v" >> $STDOUTFILE >> $STDERRFILE
-$PWD/../../yosys -p "read_verilog -sv ${TESTNAME}_ref.v ; hierarchy -check -top TopModule ; synth ; write_verilog ${TESTNAME}_ref_syn.v" >> $STDOUTFILE >> $STDERRFILE
+set -e
-rm -f a.out reference_result.txt dut_result.txt
+$PWD/../../yosys -p "read_verilog -sv ${TESTNAME}.sv ; hierarchy -check -top TopModule ; synth ; write_verilog ${TESTNAME}_syn.v" >> $STDOUTFILE 2>> $STDERRFILE
+$PWD/../../yosys -p "read_verilog -sv ${TESTNAME}_ref.v ; hierarchy -check -top TopModule ; synth ; write_verilog ${TESTNAME}_ref_syn.v" >> $STDOUTFILE 2>> $STDERRFILE
-set -e
+rm -f a.out reference_result.txt dut_result.txt
iverilog -g2012 ${TESTNAME}_syn.v
iverilog -g2012 ${TESTNAME}_ref_syn.v
diff --git a/tests/tools/autotest.sh b/tests/tools/autotest.sh
index 218edf931..23964a751 100755
--- a/tests/tools/autotest.sh
+++ b/tests/tools/autotest.sh
@@ -7,8 +7,8 @@ use_modelsim=false
verbose=false
keeprunning=false
makejmode=false
-frontend="verilog"
-backend_opts="-noattr -noexpr"
+frontend="verilog -noblackbox"
+backend_opts="-noattr -noexpr -siminit"
autotb_opts=""
include_opts=""
xinclude_opts=""
@@ -49,7 +49,7 @@ while getopts xmGl:wkjvref:s:p:n:S:I:-: opt; do
r)
backend_opts="$backend_opts -norename" ;;
e)
- backend_opts="$( echo " $backend_opts " | sed 's, -noexpr ,,; s,^ ,,; s, $,,;'; )" ;;
+ backend_opts="$( echo " $backend_opts " | sed 's, -noexpr , ,; s,^ ,,; s, $,,;'; )" ;;
f)
frontend="$OPTARG" ;;
s)
@@ -89,6 +89,13 @@ done
compile_and_run() {
exe="$1"; output="$2"; shift 2
+ ext=${1##*.}
+ if [ "$ext" == "sv" ]; then
+ language_gen="-g2012"
+ else
+ language_gen="-g2005"
+ fi
+
if $use_modelsim; then
altver=$( ls -v /opt/altera/ | grep '^[0-9]' | tail -n1; )
/opt/altera/$altver/modelsim_ase/bin/vlib work
@@ -99,7 +106,7 @@ compile_and_run() {
/opt/Xilinx/Vivado/$xilver/bin/xvlog $xinclude_opts -d outfile=\"$output\" "$@"
/opt/Xilinx/Vivado/$xilver/bin/xelab -R work.testbench
else
- iverilog $include_opts -Doutfile=\"$output\" -s testbench -o "$exe" "$@"
+ iverilog $language_gen $include_opts -Doutfile=\"$output\" -s testbench -o "$exe" "$@"
vvp -n "$exe"
fi
}
@@ -108,8 +115,9 @@ shift $((OPTIND - 1))
for fn
do
- bn=${fn%.v}
- if [ "$bn" == "$fn" ]; then
+ bn=${fn%.*}
+ ext=${fn##*.}
+ if [[ "$ext" != "v" ]] && [[ "$ext" != "sv" ]] && [[ "$ext" != "aag" ]] && [[ "$ext" != "aig" ]]; then
echo "Invalid argument: $fn" >&2
exit 1
fi
@@ -122,6 +130,10 @@ do
echo -n "Test: $bn "
fi
+ if [ "$ext" == sv ]; then
+ frontend="$frontend -sv"
+ fi
+
rm -f ${bn}.{err,log,skip}
mkdir -p ${bn}.out
rm -rf ${bn}.out/*
@@ -132,8 +144,13 @@ do
bn=$(basename $bn)
rm -f ${bn}_ref.fir
-
- egrep -v '^\s*`timescale' ../$fn > ${bn}_ref.v
+ if [[ "$ext" == "v" ]]; then
+ egrep -v '^\s*`timescale' ../$fn > ${bn}_ref.${ext}
+ elif [[ "$ext" == "aig" ]] || [[ "$ext" == "aag" ]]; then
+ "$toolsdir"/../../yosys-abc -c "read_aiger ../${fn}; write ${bn}_ref.v"
+ else
+ cp ../${fn} ${bn}_ref.${ext}
+ fi
if [ ! -f ../${bn}_tb.v ]; then
"$toolsdir"/../../yosys -f "$frontend $include_opts" -b "test_autotb $autotb_opts" -o ${bn}_tb.v ${bn}_ref.v
@@ -141,7 +158,9 @@ do
cp ../${bn}_tb.v ${bn}_tb.v
fi
if $genvcd; then sed -i 's,// \$dump,$dump,g' ${bn}_tb.v; fi
- compile_and_run ${bn}_tb_ref ${bn}_out_ref ${bn}_tb.v ${bn}_ref.v $libs
+ compile_and_run ${bn}_tb_ref ${bn}_out_ref ${bn}_tb.v ${bn}_ref.v $libs \
+ "$toolsdir"/../../techlibs/common/simlib.v \
+ "$toolsdir"/../../techlibs/common/simcells.v
if $genvcd; then mv testbench.vcd ${bn}_ref.vcd; fi
test_count=0
@@ -175,7 +194,7 @@ do
if [ -n "$firrtl2verilog" ]; then
if test -z "$xfirrtl" || ! grep "$fn" "$xfirrtl" ; then
"$toolsdir"/../../yosys -b "firrtl" -o ${bn}_ref.fir -f "$frontend $include_opts" -p "prep -nordff; proc; opt; memory; opt; fsm; opt -full -fine; pmuxtree" ${bn}_ref.v
- $firrtl2verilog -i ${bn}_ref.fir -o ${bn}_ref.fir.v -X verilog
+ $firrtl2verilog -i ${bn}_ref.fir -o ${bn}_ref.fir.v
test_passes -f "$frontend $include_opts" -p "hierarchy; proc; opt; memory; opt; fsm; opt -full -fine" ${bn}_ref.fir.v
fi
fi
diff --git a/tests/various/attrib05_port_conn.v b/tests/various/attrib05_port_conn.v
new file mode 100644
index 000000000..e20e66319
--- /dev/null
+++ b/tests/various/attrib05_port_conn.v
@@ -0,0 +1,21 @@
+module bar(clk, rst, inp, out);
+ input wire clk;
+ input wire rst;
+ input wire inp;
+ output reg out;
+
+ always @(posedge clk)
+ if (rst) out <= 1'd0;
+ else out <= ~inp;
+
+endmodule
+
+module foo(clk, rst, inp, out);
+ input wire clk;
+ input wire rst;
+ input wire inp;
+ output wire out;
+
+ bar bar_instance ( (* clock_connected *) clk, rst, (* this_is_the_input *) inp, out);
+endmodule
+
diff --git a/tests/various/attrib05_port_conn.ys b/tests/various/attrib05_port_conn.ys
new file mode 100644
index 000000000..27a016733
--- /dev/null
+++ b/tests/various/attrib05_port_conn.ys
@@ -0,0 +1,2 @@
+# Read and parse Verilog file
+read_verilog attrib05_port_conn.v
diff --git a/tests/various/attrib07_func_call.v b/tests/various/attrib07_func_call.v
new file mode 100644
index 000000000..f55ef2316
--- /dev/null
+++ b/tests/various/attrib07_func_call.v
@@ -0,0 +1,21 @@
+function [7:0] do_add;
+ input [7:0] inp_a;
+ input [7:0] inp_b;
+
+ do_add = inp_a + inp_b;
+
+endfunction
+
+module foo(clk, rst, inp_a, inp_b, out);
+ input wire clk;
+ input wire rst;
+ input wire [7:0] inp_a;
+ input wire [7:0] inp_b;
+ output wire [7:0] out;
+
+ always @(posedge clk)
+ if (rst) out <= 0;
+ else out <= do_add (* combinational_adder *) (inp_a, inp_b);
+
+endmodule
+
diff --git a/tests/various/attrib07_func_call.ys b/tests/various/attrib07_func_call.ys
new file mode 100644
index 000000000..774827651
--- /dev/null
+++ b/tests/various/attrib07_func_call.ys
@@ -0,0 +1,2 @@
+# Read and parse Verilog file
+read_verilog attrib07_func_call.v
diff --git a/tests/various/chparam.sh b/tests/various/chparam.sh
new file mode 100644
index 000000000..9bb8d81db
--- /dev/null
+++ b/tests/various/chparam.sh
@@ -0,0 +1,52 @@
+#!/bin/bash
+
+trap 'echo "ERROR in chparam.sh" >&2; exit 1' ERR
+
+cat > chparam1.sv << "EOT"
+module top #(
+ parameter [31:0] X = 0
+) (
+ input [31:0] din,
+ output [31:0] dout
+);
+ assign dout = X-din;
+endmodule
+
+module top_props #(
+ parameter [31:0] X = 0
+) (
+ input [31:0] dout
+);
+ always @* assert (dout != X);
+endmodule
+
+bind top top_props #(.X(123456789)) props (.*);
+EOT
+
+cat > chparam2.sv << "EOT"
+module top #(
+ parameter [31:0] X = 0
+) (
+ input [31:0] din,
+ output [31:0] dout
+);
+ assign dout = X-din;
+ always @* assert (dout != 123456789);
+endmodule
+EOT
+
+if ../../yosys -q -p 'verific -sv chparam1.sv'; then
+ ../../yosys -q -p 'verific -sv chparam1.sv; hierarchy -chparam X 123123123 -top top; prep -flatten' \
+ -p 'sat -verify -prove-asserts -show-ports -set din[0] 1' \
+ -p 'sat -falsify -prove-asserts -show-ports -set din[0] 0'
+
+ ../../yosys -q -p 'verific -sv chparam2.sv; hierarchy -chparam X 123123123 -top top; prep -flatten' \
+ -p 'sat -verify -prove-asserts -show-ports -set din[0] 1' \
+ -p 'sat -falsify -prove-asserts -show-ports -set din[0] 0'
+fi
+../../yosys -q -p 'read_verilog -sv chparam2.sv; hierarchy -chparam X 123123123 -top top; prep -flatten' \
+ -p 'sat -verify -prove-asserts -show-ports -set din[0] 1' \
+ -p 'sat -falsify -prove-asserts -show-ports -set din[0] 0'
+
+rm chparam1.sv
+rm chparam2.sv
diff --git a/tests/various/elab_sys_tasks.sv b/tests/various/elab_sys_tasks.sv
new file mode 100644
index 000000000..774d85b32
--- /dev/null
+++ b/tests/various/elab_sys_tasks.sv
@@ -0,0 +1,30 @@
+module test;
+localparam X=1;
+genvar i;
+generate
+if (X == 1)
+ $info("X is 1");
+if (X == 1)
+ $warning("X is 1");
+else
+ $error("X is not 1");
+case (X)
+ 1: $info("X is 1 in a case statement");
+endcase
+//case (X-1)
+// 1: $warn("X is 2");
+// default: $warn("X might be anything in a case statement");
+//endcase
+for (i = 0; i < 3; i = i + 1)
+begin
+ case(i)
+ 0: $info;
+ 1: $warning;
+ default: $info("default case statemnent");
+ endcase
+end
+
+$info("This is a standalone $info(). Next $info has no parameters");
+$info;
+endgenerate
+endmodule
diff --git a/tests/various/elab_sys_tasks.ys b/tests/various/elab_sys_tasks.ys
new file mode 100644
index 000000000..45bee3a60
--- /dev/null
+++ b/tests/various/elab_sys_tasks.ys
@@ -0,0 +1 @@
+read_verilog -sv elab_sys_tasks.sv
diff --git a/tests/various/hierarchy.sh b/tests/various/hierarchy.sh
index d33a247be..9dbd1c89f 100644
--- a/tests/various/hierarchy.sh
+++ b/tests/various/hierarchy.sh
@@ -53,6 +53,7 @@ echo -n " no explicit top - "
module noTop(a, y);
input a;
output [31:0] y;
+ assign y = a;
endmodule
EOV
hierarchy -auto-top
diff --git a/tests/various/opt_rmdff.v b/tests/various/opt_rmdff.v
new file mode 100644
index 000000000..b1c06703c
--- /dev/null
+++ b/tests/various/opt_rmdff.v
@@ -0,0 +1,50 @@
+module opt_rmdff_test (input C, input D, input E, output [29:0] Q);
+\$dffe #(.WIDTH(1), .CLK_POLARITY(1), .EN_POLARITY(1)) remove0 (.CLK(C), .D(D), .EN(1'b0), .Q(Q[0])); // EN is never active
+(* init = "1'b1" *) wire Q1; assign Q[1] = Q1;
+\$dffe #(.WIDTH(1), .CLK_POLARITY(1), .EN_POLARITY(1)) remove1 (.CLK(C), .D(D), .EN(1'b0), .Q(Q1)); // EN is never active
+\$dffe #(.WIDTH(1), .CLK_POLARITY(1), .EN_POLARITY(1)) remove2 (.CLK(C), .D(D), .EN(1'bx), .Q(Q[2])); // EN is don't care
+\$dffe #(.WIDTH(1), .CLK_POLARITY(1), .EN_POLARITY(1)) keep3 (.CLK(C), .D(D), .EN(1'b1), .Q(Q[3])); // EN is always active
+(* init = "1'b0" *) wire Q4; assign Q[4] = Q4;
+\$dffe #(.WIDTH(1), .CLK_POLARITY(0), .EN_POLARITY(1)) keep4 (.CLK(C), .D(D), .EN(1'b1), .Q(Q4)); // EN is always active
+\$dffe #(.WIDTH(1), .CLK_POLARITY(1), .EN_POLARITY(0)) remove5 (.CLK(C), .D(D), .EN(1'b1), .Q(Q[5])); // EN is never active
+\$dffe #(.WIDTH(1), .CLK_POLARITY(1), .EN_POLARITY(0)) remove6 (.CLK(C), .D(D), .EN(1'bx), .Q(Q[6])); // EN is don't care
+(* init = "1'b0" *) wire Q7; assign Q[7] = Q7;
+\$dffe #(.WIDTH(1), .CLK_POLARITY(0), .EN_POLARITY(0)) keep7 (.CLK(C), .D(D), .EN(E), .Q(Q7)); // EN is non constant
+
+\$_DFFE_PP_ remove8 (.C(C), .D(D), .E(1'b0), .Q(Q[8])); // EN is never active
+(* init = "1'b1" *) wire Q9; assign Q[9] = Q9;
+\$_DFFE_PP_ remove9 (.C(C), .D(D), .E(1'b0), .Q(Q9)); // EN is never active
+\$_DFFE_PP_ remove10 (.C(C), .D(D), .E(1'bx), .Q(Q[10])); // EN is don't care
+\$_DFFE_PP_ keep11 (.C(C), .D(D), .E(1'b1), .Q(Q[11])); // EN is always active
+(* init = "1'b0" *) wire Q12; assign Q[12] = Q12;
+\$_DFFE_PP_ keep12 (.C(C), .D(D), .E(1'b1), .Q(Q12)); // EN is always active
+
+\$_DFFE_NN_ remove13 (.C(C), .D(D), .E(1'b1), .Q(Q[13])); // EN is never active
+(* init = "1'b1" *) wire Q14; assign Q[14] = Q14;
+\$_DFFE_NN_ remove14 (.C(C), .D(D), .E(1'b1), .Q(Q14)); // EN is never active
+\$_DFFE_NN_ remove15 (.C(C), .D(D), .E(1'bx), .Q(Q[15])); // EN is don't care
+\$_DFFE_NN_ keep16 (.C(C), .D(D), .E(1'b0), .Q(Q[16])); // EN is always active
+(* init = "1'b0" *) wire Q17; assign Q[17] = Q17;
+\$_DFFE_NN_ keep17 (.C(C), .D(D), .E(1'b0), .Q(Q17)); // EN is always active
+
+\$dffe #(.WIDTH(1), .CLK_POLARITY(1), .EN_POLARITY(1)) remove18 (.CLK(1'b0), .D(D), .EN(E), .Q(Q[18])); // CLK is constant
+(* init = "1'b1" *) wire Q19; assign Q[19] = Q19;
+\$dffe #(.WIDTH(1), .CLK_POLARITY(1), .EN_POLARITY(1)) remove19 (.CLK(1'b1), .D(D), .EN(E), .Q(Q19)); // CLK is constant
+\$dffe #(.WIDTH(1), .CLK_POLARITY(1), .EN_POLARITY(1)) remove20 (.CLK(C), .D(1'bx), .EN(E), .Q(Q[20])); // D is undriven, Q has no initial value
+(* init = "1'b0" *) wire Q21; assign Q[21] = Q21;
+\$dffe #(.WIDTH(1), .CLK_POLARITY(1), .EN_POLARITY(1)) keep21 (.CLK(C), .D(1'bx), .EN(E), .Q(Q21)); // D is undriven, Q has initial value
+//\$dffe #(.WIDTH(1), .CLK_POLARITY(0), .EN_POLARITY(1)) remove22 (.CLK(C), .D(1'b0), .EN(1'b1), .Q(Q[22])); // D is constant, no initial Q value, EN is always active
+// // (TODO, Q starts with 1'bx and becomes 1'b0)
+(* init = "1'b0" *) wire Q23; assign Q[23] = Q23;
+\$dffe #(.WIDTH(1), .CLK_POLARITY(1), .EN_POLARITY(1)) noenable23 (.CLK(C), .D(1'b0), .EN(1'b1), .Q(Q23)); // D is constant, initial Q value same as D, EN is always active
+(* init = "1'b1" *) wire Q24; assign Q[24] = Q24;
+\$dffe #(.WIDTH(1), .CLK_POLARITY(1), .EN_POLARITY(0)) keep24 (.CLK(C), .D(1'b0), .EN(1'b0), .Q(Q24)); // D is constant, initial Q value NOT same as D, EN is always active
+(* init = "1'b1" *) wire Q25; assign Q[25] = Q25;
+\$dffe #(.WIDTH(1), .CLK_POLARITY(1), .EN_POLARITY(0)) remove25 (.CLK(C), .D(1'b0), .EN(1'b1), .Q(Q25)); // D is constant, EN is never active
+\$dffe #(.WIDTH(1), .CLK_POLARITY(1), .EN_POLARITY(1)) remove26 (.CLK(C), .D(Q[26]), .EN(1'b1), .Q(Q[26])); // D is Q, EN is always active
+\$dffe #(.WIDTH(1), .CLK_POLARITY(1), .EN_POLARITY(0)) remove27 (.CLK(C), .D(Q[27]), .EN(1'b1), .Q(Q[27])); // D is Q, EN is never active, but no initial value
+\$dffe #(.WIDTH(1), .CLK_POLARITY(1), .EN_POLARITY(0)) remove28 (.CLK(C), .D(Q[28]), .EN(E), .Q(Q[28])); // EN is nonconst, but no initial value
+(* init = "1'b1" *) wire Q29; assign Q[29] = Q29;
+\$dffe #(.WIDTH(1), .CLK_POLARITY(1), .EN_POLARITY(1)) keep29 (.CLK(C), .D(Q[29]), .EN(1'b1), .Q(Q29)); // EN is always active, but with initial value
+
+endmodule
diff --git a/tests/various/opt_rmdff.ys b/tests/various/opt_rmdff.ys
new file mode 100644
index 000000000..081f81782
--- /dev/null
+++ b/tests/various/opt_rmdff.ys
@@ -0,0 +1,26 @@
+read_verilog -icells opt_rmdff.v
+prep
+design -stash gold
+read_verilog -icells opt_rmdff.v
+proc
+opt_rmdff
+
+select -assert-count 0 c:remove*
+select -assert-min 7 c:keep*
+select -assert-count 0 t:$dffe 7:$_DFFE_* %u c:noenable* %i
+
+design -stash gate
+
+design -import gold -as gold
+design -import gate -as gate
+
+equiv_make gold gate equiv
+hierarchy -top equiv
+equiv_simple -undef
+equiv_status -assert
+
+design -load gold
+stat
+
+design -load gate
+stat
diff --git a/tests/various/pmux2shiftx.v b/tests/various/pmux2shiftx.v
new file mode 100644
index 000000000..fec84187b
--- /dev/null
+++ b/tests/various/pmux2shiftx.v
@@ -0,0 +1,34 @@
+module pmux2shiftx_test (
+ input [2:0] S1,
+ input [5:0] S2,
+ input [1:0] S3,
+ input [9:0] A, B, C, D, D, E, F, G, H,
+ input [9:0] I, J, K, L, M, N, O, P, Q,
+ output reg [9:0] X
+);
+ always @* begin
+ case (S1)
+ 3'd 0: X = A;
+ 3'd 1: X = B;
+ 3'd 2: X = C;
+ 3'd 3: X = D;
+ 3'd 4: X = E;
+ 3'd 5: X = F;
+ 3'd 6: X = G;
+ 3'd 7: X = H;
+ endcase
+ case (S2)
+ 6'd 45: X = I;
+ 6'd 47: X = J;
+ 6'd 49: X = K;
+ 6'd 55: X = L;
+ 6'd 57: X = M;
+ 6'd 59: X = N;
+ endcase
+ case (S3)
+ 2'd 1: X = O;
+ 2'd 2: X = P;
+ 2'd 3: X = Q;
+ endcase
+ end
+endmodule
diff --git a/tests/various/pmux2shiftx.ys b/tests/various/pmux2shiftx.ys
new file mode 100644
index 000000000..deb134083
--- /dev/null
+++ b/tests/various/pmux2shiftx.ys
@@ -0,0 +1,28 @@
+read_verilog pmux2shiftx.v
+prep
+design -save gold
+
+pmux2shiftx -min_density 70
+
+opt
+
+stat
+# show -width
+select -assert-count 1 t:$sub
+select -assert-count 1 t:$mux
+select -assert-count 1 t:$shift
+select -assert-count 3 t:$shiftx
+
+design -stash gate
+
+design -import gold -as gold
+design -import gate -as gate
+
+miter -equiv -flatten -make_assert -make_outputs gold gate miter
+sat -verify -prove-asserts -show-ports miter
+
+design -load gold
+stat
+
+design -load gate
+stat
diff --git a/tests/various/specify.v b/tests/various/specify.v
new file mode 100644
index 000000000..afc421da8
--- /dev/null
+++ b/tests/various/specify.v
@@ -0,0 +1,30 @@
+module test (
+ input EN, CLK,
+ input [3:0] D,
+ output reg [3:0] Q
+);
+ always @(posedge CLK)
+ if (EN) Q <= D;
+
+ specify
+ if (EN) (CLK *> (Q : D)) = (1, 2:3:4);
+ $setup(D, posedge CLK &&& EN, 5);
+ $hold(posedge CLK, D &&& EN, 6);
+ endspecify
+endmodule
+
+module test2 (
+ input A, B,
+ output Q
+);
+ xor (Q, A, B);
+ specify
+ //specparam T_rise = 1;
+ //specparam T_fall = 2;
+ `define T_rise 1
+ `define T_fall 2
+ (A => Q) = (`T_rise,`T_fall);
+ //(B => Q) = (`T_rise+`T_fall)/2.0;
+ (B => Q) = 1.5;
+ endspecify
+endmodule
diff --git a/tests/various/specify.ys b/tests/various/specify.ys
new file mode 100644
index 000000000..a5ca07219
--- /dev/null
+++ b/tests/various/specify.ys
@@ -0,0 +1,56 @@
+read_verilog -specify specify.v
+prep
+cd test
+select t:$specify2 -assert-count 0
+select t:$specify3 -assert-count 1
+select t:$specrule -assert-count 2
+cd test2
+select t:$specify2 -assert-count 2
+select t:$specify3 -assert-count 0
+select t:$specrule -assert-count 0
+cd
+write_verilog specify.out
+design -stash gold
+
+read_verilog -specify specify.out
+prep
+cd test
+select t:$specify2 -assert-count 0
+select t:$specify3 -assert-count 1
+select t:$specrule -assert-count 2
+cd test2
+select t:$specify2 -assert-count 2
+select t:$specify3 -assert-count 0
+select t:$specrule -assert-count 0
+cd
+design -stash gate
+
+design -copy-from gold -as gold test
+design -copy-from gate -as gate test
+rename -hide
+rename -enumerate -pattern A_% t:$specify3
+rename -enumerate -pattern B_% t:$specrule r:TYPE=$setup %i
+rename -enumerate -pattern C_% t:$specrule r:TYPE=$hold %i
+select n:A_* -assert-count 2
+select n:B_* -assert-count 2
+select n:C_* -assert-count 2
+equiv_make gold gate equiv
+hierarchy -top equiv
+equiv_struct
+equiv_induct -seq 5
+equiv_status -assert
+design -reset
+
+design -copy-from gold -as gold test2
+design -copy-from gate -as gate test2
+rename -hide
+rename -enumerate -pattern A_% t:$specify2 r:T_RISE_TYP=1 %i
+rename -enumerate -pattern B_% t:$specify2 n:A_* %d
+select n:A_* -assert-count 2
+select n:B_* -assert-count 2
+equiv_make gold gate equiv
+hierarchy -top equiv
+equiv_struct
+equiv_induct -seq 5
+equiv_status -assert
+design -reset