Add yjit-rust-port test workflow

.github/workflows/yjit-rust-port.yml

@@ -0,0 +1,48 @@
+name: YJIT Rust Port Temp Checks
+on:
+  push:
+    paths-ignore:
+      - 'doc/**'
+      - '**.md'
+      - '**.rdoc'
+  pull_request:
+    paths-ignore:
+      - 'doc/**'
+      - '**.md'
+      - '**.rdoc'
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+jobs:
+  cargo:
+    name: Rust cargo test
+    # GitHub Action's image seems to already contain a Rust 1.58.0.
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      # For now we can't run cargo test --offline because it complains about the
+      # capstone dependency, even though the dependency is optional
+      #- run: cargo test --offline
+      - run: RUST_BACKTRACE=1 cargo test
+        working-directory: yjit
+      # Also compile and test with all features enabled
+      - run: RUST_BACKTRACE=1 cargo test --all-features
+        working-directory: yjit
+  make:
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Install libraries
+        run: |
+          set -x
+          sudo apt-get update -q || :
+          sudo apt-get install --no-install-recommends -q -y build-essential libssl-dev libyaml-dev libreadline6-dev zlib1g-dev libncurses5-dev libffi-dev bison autoconf ruby
+      - uses: actions/checkout@v2
+      - run: ./autogen.sh
+      - run: CC=clang ./configure --enable-yjit=dev
+      - run: make -j miniruby
+      - run: make -j yjit-bindgen
+      # Try booting miniruby
+      - run: RUST_BACKTRACE=1 ./miniruby -e0
+      - run: RUST_BACKTRACE=1 ruby --disable=gems bootstraptest/runner.rb --ruby="./miniruby -I./lib -I. -I.ext/common --disable-gems --yjit-call-threshold=1"  bootstraptest/test_fiber.rb bootstraptest/test_finalizer.rb bootstraptest/test_flip.rb bootstraptest/test_fork.rb bootstraptest/test_load.rb bootstraptest/test_marshal.rb bootstraptest/test_string.rb bootstraptest/test_struct.rb bootstraptest/test_autoload.rb bootstraptest/test_class.rb bootstraptest/test_env.rb bootstraptest/test_yjit_rust_port.rb

bootstraptest/test_yjit_rust_port.rb

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+# Simple tests that we know we can pass
+# To keep track of what we got working during the Rust port
+# And avoid breaking/losing functionality
+
+# Test for opt_mod
+assert_equal '2', %q{
+  def mod(a, b)
+    a % b
+  end
+
+  mod(7, 5)
+  mod(7, 5)
+}
+
+# Test for opt_mult
+assert_equal '12', %q{
+  def mult(a, b)
+    a * b
+  end
+
+  mult(6, 2)
+  mult(6, 2)
+}
+
+# Test for opt_div
+assert_equal '3', %q{
+  def div(a, b)
+    a / b
+  end
+
+  div(6, 2)
+  div(6, 2)
+}
+
+# Test for opt_plus
+assert_equal '5', %q{
+  def plus(a, b)
+    a + b
+  end
+
+  plus(3, 2)
+}
+
+assert_equal 'true', %q{
+  def foo(a, b)
+    a < b
+  end
+
+  foo(2, 3)
+}
+
+# FIXME: currently takes the wrong branch
+#assert_equal '777', %q{
+#  def foo(a, b)
+#    if a
+#      777
+#    else
+#      333
+#    end
+#  end
+#
+#  foo(true, true)
+#}