66d5cebb49
This reverts commit 9f902b7483.
Reason for revert: Reverting due to various fuzzing issues (numfuzz issues listed in original CL comments, ochang fuzzer in https://bugs.chromium.org/p/chromium/issues/detail?id=1299418)
Original change's description:
> [turbofan] Making OSR concurrent
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> ... to reduce compilation overhead on the main thread for OSR
>
> Bug: v8:12161
> Change-Id: I54ca5fa6201405daf92dac9cf51d5de4b46577b3
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3369361
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Fanchen Kong <fanchen.kong@intel.com>
> Cr-Commit-Position: refs/heads/main@{#79188}
Bug: v8:12161
Change-Id: Id6f6086517cd77fb1aa60b20fd03528b8e2ca686
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3477104
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Owners-Override: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79194}
24 lines
708 B
JavaScript
24 lines
708 B
JavaScript
// Copyright 2019 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax
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{
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function f() {
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for(let i = 0; i < 10; ++i){
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%PrepareFunctionForOptimization(f);
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try{
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// Carefully constructed by a fuzzer to use a new register for s(), whose
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// write is dead due to the unconditional throw after s()=N, but which is
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// read in the ({...g}) call, which therefore must also be marked dead and
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// elided.
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with(f&&g&&(s()=N)({...g})){}
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} catch {}
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%OptimizeOsr();
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}
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}
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%EnsureFeedbackVectorForFunction(f);
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f();
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}
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