RJIT: Support --rjit-stats on release build as well

doc/rjit/rjit.md

@@ -22,7 +22,8 @@ You may still manually pass `--enable-rjit` to try RJIT on unsupported platforms
 
 ### --enable-rjit=dev
 
-`--enable-rjit=dev` makes the interpreter slower, but enables `ruby --rjit-stats` to work.
+`--enable-rjit=dev` makes the interpreter slower, but enables `vm_insns_count` and `ratio_in_rjit`
+in `ruby --rjit-stats` to work.
 
 ## make
 ### rjit-bindgen
@@ -35,7 +36,7 @@ macOS seems to have libclang by default. On Ubuntu, you can install it with `apt
 ## ruby
 ### --rjit-stats
 
-This prints RJIT stats at exit. Available with `--enable-rjit=dev` on configure.
+This prints RJIT stats at exit. Some stats are available only with `--enable-rjit=dev` on configure.
 
 ### --rjit-dump-disasm
 

lib/ruby_vm/rjit/stats.rb

@@ -22,6 +22,8 @@ module RubyVM::RJIT
       retired_in_rjit = stats[:rjit_insns_count] - stats[:side_exit_count]
       stats[:total_insns_count] = retired_in_rjit + stats[:vm_insns_count]
       stats[:ratio_in_rjit] = 100.0 * retired_in_rjit / stats[:total_insns_count]
+    else
+      stats.delete(:vm_insns_count)
     end
 
     stats

rjit.c

@@ -145,8 +145,8 @@ rb_rjit_setup_options(const char *s, struct rjit_options *rjit_opt)
 
 #define M(shortopt, longopt, desc) RUBY_OPT_MESSAGE(shortopt, longopt, desc)
 const struct ruby_opt_message rb_rjit_option_messages[] = {
-#if RJIT_STATS
     M("--rjit-stats",              "", "Enable collecting RJIT statistics"),
+#if RJIT_STATS
     M("--rjit-trace-exits",        "", "Trace side exit locations"),
 #endif
     M("--rjit-exec-mem-size=num",  "", "Size of executable memory block in MiB (default: " STRINGIZE(DEFAULT_EXEC_MEM_SIZE) ")"),
@@ -158,9 +158,9 @@ const struct ruby_opt_message rb_rjit_option_messages[] = {
 };
 #undef M
 
-#if RJIT_STATS
 struct rb_rjit_runtime_counters rb_rjit_counters = { 0 };
 
+#if RJIT_STATS
 void
 rb_rjit_collect_vm_usage_insn(int insn)
 {

rjit_c.c

@@ -406,10 +406,8 @@ rjit_exit_traces(void)
 #define SIZEOF(type) RB_SIZE2NUM(sizeof(type))
 #define SIGNED_TYPE_P(type) RBOOL((type)(-1) < (type)(1))
 
-#if RJIT_STATS
 // Insn side exit counters
 static size_t rjit_insn_exits[VM_INSTRUCTION_SIZE] = { 0 };
-#endif // YJIT_STATS
 
 // macOS: brew install capstone
 // Ubuntu/Debian: apt-get install libcapstone-dev

rjit_c.rb

@@ -18,13 +18,7 @@ module RubyVM::RJIT # :nodoc: all
     end
 
     def rjit_insn_exits
-      addr = Primitive.cstmt! %{
-        #if RJIT_STATS
-          return SIZET2NUM((size_t)rjit_insn_exits);
-        #else
-          return SIZET2NUM(0);
-        #endif
-      }
+      addr = Primitive.cexpr! 'SIZET2NUM((size_t)rjit_insn_exits)'
       CType::Immediate.parse("size_t").new(addr)
     end
 
@@ -36,13 +30,7 @@ module RubyVM::RJIT # :nodoc: all
     end
 
     def rb_rjit_counters
-      addr = Primitive.cstmt! %{
-        #if RJIT_STATS
-          return SIZET2NUM((size_t)&rb_rjit_counters);
-        #else
-          return SIZET2NUM(0);
-        #endif
-      }
+      addr = Primitive.cexpr! 'SIZET2NUM((size_t)&rb_rjit_counters)'
       rb_rjit_runtime_counters.new(addr)
     end