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Enable inlining of functions that reference context slots.

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Review URL: http://codereview.chromium.org/7887038

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9294 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
fschneider@chromium.org 2011-09-15 10:57:47 +00:00
parent 8c744768e2
commit 9e4663a8d9
2 changed files with 52 additions and 1 deletions
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4
src/ast.cc
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@ -550,7 +550,9 @@ bool Conditional::IsInlineable() const {
bool VariableProxy::IsInlineable() const {
return var()->IsUnallocated() || var()->IsStackAllocated();
return var()->IsUnallocated()
|| var()->IsStackAllocated()
|| var()->IsContextSlot();
}

49
test/mjsunit/compiler/inline-context-slots.js Normal file
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@ -0,0 +1,49 @@
// Copyright 2011 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.
// Test inlining of functions with context slots.
// Flags: --allow-natives-syntax
// Caller/callee without a local context.
(function() {
var X = 5;
var Y = 10;
function F() {}
F.prototype.max = function() {
return X > Y ? X : Y;
}
F.prototype.run = function() {
return this.max();
}
var f = new F();
for (var i=0; i<5; i++) f.run();
%OptimizeFunctionOnNextCall(f.run);
assertEquals(10, f.run());
})();