deps: backport 23f2736a from v8 upstream

Original text:

    Fix corner case in x64 compare stubs.

    BUG=v8:2416

    Review URL: https://codereview.chromium.org/11413087

fix #7528

diff --git a/deps/v8/src/x64/code-stubs-x64.cc b/deps/v8/src/x64/code-stubs-x64.cc
index f0f9c5d272ef926c58ac28e81d67ba6f00eeac66..9ad0167f1e38dc8c92ea4ef8348dd7607aae9427 100644 (file)
--- a/deps/v8/src/x64/code-stubs-x64.cc
+++ b/deps/v8/src/x64/code-stubs-x64.cc
@@ -5580,7 +5580,7 @@ void ICCompareStub::GenerateSmis(MacroAssembler* masm) {
     __ subq(rdx, rax);
     __ j(no_overflow, &done, Label::kNear);
     // Correct sign of result in case of overflow.
-    __ SmiNot(rdx, rdx);
+    __ not_(rdx);
     __ bind(&done);
     __ movq(rax, rdx);
   }

diff --git a/deps/v8/test/mjsunit/regress/regress-2416.js b/deps/v8/test/mjsunit/regress/regress-2416.js
new file mode 100644 (file)
index 0000000..02afeb9
--- /dev/null
+++ b/deps/v8/test/mjsunit/regress/regress-2416.js
@@ -0,0 +1,75 @@
+// Copyright 2012 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.
+
+assertFalse(2147483647 < -2147483648)
+assertFalse(2147483647 <= -2147483648)
+assertFalse(2147483647 == -2147483648)
+assertTrue(2147483647 >= -2147483648)
+assertTrue(2147483647 > -2147483648)
+
+assertTrue(-2147483648 < 2147483647)
+assertTrue(-2147483648 <= 2147483647)
+assertFalse(-2147483648 == 2147483647)
+assertFalse(-2147483648 >= 2147483647)
+assertFalse(-2147483648 > 2147483647)
+
+assertFalse(2147483647 < 2147483647)
+assertTrue(2147483647 <= 2147483647)
+assertTrue(2147483647 == 2147483647)
+assertTrue(2147483647 >= 2147483647)
+assertFalse(2147483647 > 2147483647)
+
+assertFalse(-2147483648 < -2147483648)
+assertTrue(-2147483648 <= -2147483648)
+assertTrue(-2147483648 == -2147483648)
+assertTrue(-2147483648 >= -2147483648)
+assertFalse(-2147483648 > -2147483648)
+
+
+assertFalse(1073741823 < -1073741824)
+assertFalse(1073741823 <= -1073741824)
+assertFalse(1073741823 == -1073741824)
+assertTrue(1073741823 >= -1073741824)
+assertTrue(1073741823 > -1073741824)
+
+assertTrue(-1073741824 < 1073741823)
+assertTrue(-1073741824 <= 1073741823)
+assertFalse(-1073741824 == 1073741823)
+assertFalse(-1073741824 >= 1073741823)
+assertFalse(-1073741824 > 1073741823)
+
+assertFalse(1073741823 < 1073741823)
+assertTrue(1073741823 <= 1073741823)
+assertTrue(1073741823 == 1073741823)
+assertTrue(1073741823 >= 1073741823)
+assertFalse(1073741823 > 1073741823)
+
+assertFalse(-1073741824 < -1073741824)
+assertTrue(-1073741824 <= -1073741824)
+assertTrue(-1073741824 == -1073741824)
+assertTrue(-1073741824 >= -1073741824)
+assertFalse(-1073741824 > -1073741824)