Allow tracing of optimized methods

This updates the trace instructions to directly dispatch to
opt_send_without_block.  So this should cause no slowdown in
non-trace mode.

To enable the tracing of the optimized methods, RUBY_EVENT_C_CALL
and RUBY_EVENT_C_RETURN are added as events to the specialized
instructions.

Fixes [Bug #14870]

Co-authored-by: Takashi Kokubun <takashikkbn@gmail.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/spec/ruby/core/tracepoint/inspect_spec.rb b/spec/ruby/core/tracepoint/inspect_spec.rb
index 06bed9c99a..67e2ad1494 100644
--- a/spec/ruby/core/tracepoint/inspect_spec.rb
+++ b/spec/ruby/core/tracepoint/inspect_spec.rb
@@ -65,11 +65,12 @@ describe 'TracePoint#inspect' do
   it 'returns a String showing the event, method, path and line for a :c_call event' do
     inspect = nil
     line = nil
-    TracePoint.new(:c_call) { |tp|
+    tp = TracePoint.new(:c_call) { |tp|
       next unless TracePointSpec.target_thread?
       inspect ||= tp.inspect
-    }.enable do
-      line = __LINE__ + 1
+    }
+    line = __LINE__ + 2
+    tp.enable do
       [0, 1].max
     end