[Truffle] Found an unexploded loop on the fastest part of the fast path!

jruby · Oct 13, 2014 · 4ce5caa · 4ce5caa
1 parent 2718f60
commit 4ce5caa
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Showing 2 changed files with 9 additions and 4 deletions.
diff --git a/core/src/main/java/org/jruby/truffle/runtime/RubyArguments.java b/core/src/main/java/org/jruby/truffle/runtime/RubyArguments.java
@@ -38,10 +38,7 @@ public static Object[] pack(MethodLike method, MaterializedFrame declarationFram
         packed[DECLARATION_FRAME_INDEX] = declarationFrame;
         packed[SELF_INDEX] = self;
         packed[BLOCK_INDEX] = block;
-
-        for (int n = 0; n < arguments.length; n++) {
-            packed[RUNTIME_ARGUMENT_COUNT + n] = arguments[n];
-        }
+        System.arraycopy(arguments, 0, packed, RUNTIME_ARGUMENT_COUNT, arguments.length);
 
         return packed;
     }

diff --git a/test/truffle/pe/core/fixnum_pe.rb b/test/truffle/pe/core/fixnum_pe.rb
@@ -6,6 +6,14 @@
       truffle_assert_constant 14
       truffle_assert_constant 0xffffffffffff
     end
+
+    describe "#+" do
+
+      example "a Fixnum" do
+        truffle_assert_constant 14 + 2
+      end
+
+    end
 
   end