Increase case duplicate/incomplete to 16 bit tables, bug1545.

Changes

@@ -8,6 +8,8 @@ The contributors that suggested a given feature are shown in []. Thanks!
 
 ***   Add --protect-ids to obscure information in objects, bug1521. [Todd Strader]
 
+****  Increase case duplicate/incomplete to 16 bit tables, bug1545. [Yossi Nivin]
+
 
 * Verilator 4.020 2019-10-06
 

src/V3Case.cpp

@@ -49,7 +49,7 @@
 #include <algorithm>
 #include <cstdarg>
 
-#define CASE_OVERLAP_WIDTH 12           // Maximum width we can check for overlaps in
+#define CASE_OVERLAP_WIDTH 16           // Maximum width we can check for overlaps in
 #define CASE_BARF          999999       // Magic width when non-constant
 #define CASE_ENCODER_GROUP_DEPTH 8      // Levels of priority to be ORed together in top IF tree
 

test_regress/t/t_sv_cpu_code/cpu.sv

@@ -157,6 +157,7 @@ module cpu
       idec_mem_re  = 1'b0;
       idec_mem_we  = 1'b0;
 
+      // verilator lint_off CASEINCOMPLETE
       casez ( ir )
         16'h0000:;              // NOP (<=> Default)