Auto-generate mjit_c.rb.erb

Merged: https://github.com/ruby/ruby/pull/6418

.github/workflows/mjit-bindgen.yml

@@ -23,9 +23,6 @@ jobs:
       matrix:
         include:
           - task: mjit-bindgen
-            configure: '--enable-yjit=dev_nodebug'
-          - task: mjit-bindgen
-            arch: i686
       fail-fast: false
     env:
       SETARCH: ${{ matrix.arch && format('setarch {0}', matrix.arch) }}
@@ -74,7 +71,7 @@ jobs:
         env:
           arch: ${{ matrix.arch }}
         run: >-
-          $SETARCH ../src/configure -C --disable-install-doc --prefix=$(pwd)/install ${{ matrix.configure }}
+          $SETARCH ../src/configure -C --disable-install-doc --prefix=$(pwd)/install --enable-yjit=dev_nodebug
           ${arch:+--target=$arch-$OSTYPE --host=$arch-$OSTYPE}
       - run: $SETARCH make incs
       - run: $SETARCH make

tool/mjit/bindgen.rb

@@ -336,7 +336,13 @@ class BindingGenerator
     @references = Set.new
   end
 
-  def generate(nodes)
+  def generate(_nodes)
+    println "module RubyVM::MJIT"
+    println "  C = Object.new"
+    println "end if RubyVM::MJIT.enabled?"
+  end
+
+  def legacy_generate(nodes)
     # TODO: Support nested declarations
     nodes_index = nodes.group_by(&:spelling).transform_values(&:last)
 
@@ -589,4 +595,4 @@ generator = BindingGenerator.new(
 )
 generator.generate(nodes)
 
-File.write(File.join(src_dir, "lib/mjit/c_#{arch_bits}.rb"), generator.src)
+File.write(File.join(src_dir, 'tool/ruby_vm/views/mjit_c.rb.erb'), generator.src)