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Fix %OptimizeFunctionOnNextCall wrt concurrent compilation.

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If a function is marked or queued for concurrent compilation,
%OptimizeFunctionOnNextCall becomes a no-op. That can be wrong
if concurrent recompilation does not complete at the time we
expect the function to have been optimized.

R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/151343006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19100 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
yangguo@chromium.org 2014-02-05 12:19:29 +00:00
parent 736e0a05f8
commit 5fadbd9e2f
1 changed files with 6 additions and 1 deletions
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7
src/runtime.cc
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@ -8503,7 +8503,12 @@ RUNTIME_FUNCTION(MaybeObject*, Runtime_OptimizeFunctionOnNextCall) {
RUNTIME_ASSERT(args.length() == 1 || args.length() == 2);
CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0);
if (!function->IsOptimizable()) return isolate->heap()->undefined_value();
if (!function->IsOptimizable() &&
!function->IsMarkedForConcurrentOptimization() &&
!function->IsInOptimizationQueue()) {
return isolate->heap()->undefined_value();
}
function->MarkForOptimization();
Code* unoptimized = function->shared()->code();