[stubs] A new approach to TF stubs

test/mjsunit/compiler/stubs/floor-stub.js

Index: test/mjsunit/compiler/stubs/floor-stub.js
diff --git a/test/mjsunit/compiler/stubs/floor-stub.js b/test/mjsunit/compiler/stubs/floor-stub.js
deleted file mode 100644
index 0a76d307baef866b554b2ff437348d4bf3f2df32..0000000000000000000000000000000000000000
--- a/test/mjsunit/compiler/stubs/floor-stub.js
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright 2015 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// Flags: --allow-natives-syntax --noalways-opt --turbo-filter=*
-
-var stubs = %GetCodeStubExportsObject();
-
-const kExtraTypeFeedbackMinusZeroSentinel = 1;
-const kFirstJSFunctionTypeFeedbackIndex = 5;
-const kFirstSlotExtraTypeFeedbackIndex = 5;
-
-(function()  {
-  var stub1 = stubs.MathFloorStub("MathFloorStub", 1);
-  var tempForTypeVector = function(d) {
-    return Math.round(d);
-  }
-  tempForTypeVector(5);
-  var tv = %GetTypeFeedbackVector(tempForTypeVector);
-  var floorFunc1 = function(v, first) {
-    if (first) return;
-    return stub1(stub1, kFirstSlotExtraTypeFeedbackIndex - 1, tv, undefined, v);
-  };
-  %OptimizeFunctionOnNextCall(stub1);
-  floorFunc1(5, true);
-  %FixedArraySet(tv, kFirstSlotExtraTypeFeedbackIndex - 1, stub1);
-  assertTrue(kExtraTypeFeedbackMinusZeroSentinel !==
-             %FixedArrayGet(tv, kFirstSlotExtraTypeFeedbackIndex));
-  assertEquals(5.0, floorFunc1(5.5));
-  assertTrue(kExtraTypeFeedbackMinusZeroSentinel !==
-             %FixedArrayGet(tv, kFirstSlotExtraTypeFeedbackIndex));
-  // Executing floor such that it returns -0 should set the proper sentinel in
-  // the feedback vector.
-  assertEquals(-Infinity, 1/floorFunc1(-0));
-  assertEquals(kExtraTypeFeedbackMinusZeroSentinel,
-               %FixedArrayGet(tv, kFirstSlotExtraTypeFeedbackIndex));
-  %ClearFunctionTypeFeedback(floorFunc1);
-})();