Add microbenchmarks for more kinds of sends

benchmarks.yml

@@ -112,6 +112,18 @@ cfunc_itself:
   desc: cfunc_itself just calls the 'itself' method many, many times.
   category: micro
   single_file: true
+send_cfunc_block:
+  desc: send_cfunc_block just calls a known C function with a block many, many times.
+  category: micro
+  single_file: true
+send_rubyfunc_block:
+  desc: send_rubyfunc_block just calls a known Ruby function with a block many, many times.
+  category: micro
+  single_file: true
+send_bmethod:
+  desc: send_bmethod just calls a known Ruby bmethod many, many times.
+  category: micro
+  single_file: true
 fib:
   desc: Fib is a simple exponential-time recursive Fibonacci number generator.
   category: micro

benchmarks/send_bmethod.rb

@@ -0,0 +1,11 @@
+require_relative '../harness/loader'
+
+define_method(:zero) { :b }
+define_method(:one) { |arg| arg }
+
+run_benchmark(500) do
+  2_000_000.times do |i|
+    zero
+    one 123
+  end
+end

benchmarks/send_cfunc_block.rb

@@ -0,0 +1,12 @@
+require_relative '../harness/loader'
+
+ARR = []
+
+run_benchmark(500) do
+  2_000_000.times do |i|
+    # each is a 0-arg cfunc
+    ARR.each {}
+    # index is a variadic cfunc
+    ARR.index {}
+  end
+end

benchmarks/send_rubyfunc_block.rb

@@ -0,0 +1,15 @@
+require_relative '../harness/loader'
+
+class C
+  def ruby_func
+    # Don't even yield
+  end
+end
+
+INSTANCE = C.new
+
+run_benchmark(500) do
+  2_000_000.times do |i|
+    INSTANCE.ruby_func {}
+  end
+end