Add -O5 option to QuestaSim. Rerun benchmarks.

test-cvc/__build.sh

@@ -20,6 +20,6 @@ sed -i -e "s/CPU_COUNT = 1024/CPU_COUNT = $CPU_COUNT/" top-mod.sv
 sources=$(cat $FFILE | grep -v "testbench.sv\|picorv32_tcm.sv")
 
 sv2v --top=top -w simbench-all.v top-mod.sv testbench.sv picorv32_tcm.sv $sources
-sed -i '1i `timescale 1ps/1ps' simbench-all.v
+patch simbench-all.v simbench-all.patch
 
 cvc64 -o top -O -pipe +large +nospecify simbench-all.v

test-cvc/simbench-all.patch

@@ -0,0 +1,20 @@
+--- simbench-all.v	2025-01-08 22:09:06.737402979 +0300
++++ simbench-all.v1	2025-01-08 22:08:27.142909974 +0300
+@@ -1,3 +1,4 @@
++`timescale 1ps/1ps
+ module top;
+ 	parameter CPU_COUNT = 1024;
+ 	reg clock = 1'b0;
+@@ -13,10 +14,9 @@
+ 	wire [CPU_COUNT - 1:0] done_all;
+ 	reg signed [31:0] cycle = 0;
+ 	always @(posedge clock) cycle <= cycle + 1;
+-	genvar _gv_ncpu_1;
++	genvar ncpu;
+ 	generate
+-		for (_gv_ncpu_1 = 0; _gv_ncpu_1 < CPU_COUNT; _gv_ncpu_1 = _gv_ncpu_1 + 1) begin : cpus
+-			localparam ncpu = _gv_ncpu_1;
++		for (ncpu = 0; ncpu < CPU_COUNT; ncpu = ncpu + 1) begin : cpus
+ 			wire done;
+ 			reg done_ack = 1'b0;
+ 			wire reset;

test-cvc/testbench.patch

@@ -1,13 +1,13 @@
 diff --git a/source/testbench.sv b/source/testbench.sv
-index 1872eed..6f27f84 100644
+index 2949591..084d7a3 100644
 --- a/source/testbench.sv
 +++ b/source/testbench.sv
-@@ -32,7 +32,7 @@ module testbench #(parameter CPU_COUNT = 1024)
+@@ -34,7 +34,7 @@ module testbench #(parameter CPU_COUNT = 1024)
+             data_len = DATA_LEN;
  
-         initial begin
-             reset = 1'b1;
--            repeat($urandom % 5 + 2) @(posedge clock);
-+            repeat($unsigned($random) % 5 + 2) @(posedge clock);
-             reset = 1'b0;
-             @(posedge clock);
+         int reset_duration;
+-        initial reset_duration = $urandom % CPU_COUNT + 2;
++        initial reset_duration = $unsigned($random) % CPU_COUNT + 2;
+         assign reset = cycle <= reset_duration;
  
+         always @(posedge clock) begin