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deps: V8: cherry-pick e527ba4bf8af
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Original commit message:

    Merged: [interpreter] Store accumulator to callee after optional chain checks

    Revision: df98901c19ce17ca995ee6750379b0f004210d68

    BUG=chromium:1171954
    NOTRY=true
    NOPRESUBMIT=true
    NOTREECHECKS=true
    R=​rmcilroy@chromium.org

    (cherry picked from commit f309db52c2ccab8c9a04fcd236e89deb077061f9)

    Change-Id: If09e1503ca07b47a112362495ec0bb9d502118c9
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2674008
    Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
    Cr-Original-Commit-Position: refs/branch-heads/8.9@{nodejs#33}
    Cr-Original-Branched-From: 16b9bbbd581c25391981aa03180b76aa60463a3e-refs/heads/8.9.255@{#1}
    Cr-Original-Branched-From: d16a2a688498bd1c3e6a49edb25d8c4ca56232dc-refs/heads/master@{#72039}
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2706110
    Reviewed-by: Mythri Alle <mythria@chromium.org>
    Commit-Queue: Achuith Bhandarkar <achuith@chromium.org>
    Cr-Commit-Position: refs/branch-heads/8.6@{nodejs#62}
    Cr-Branched-From: a64aed2333abf49e494d2a5ce24bbd14fff19f60-refs/heads/8.6.395@{#1}
    Cr-Branched-From: a626bc036236c9bf92ac7b87dc40c9e538b087e3-refs/heads/master@{#69472}

Refs: v8/v8@e527ba4
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targos committed Apr 17, 2021
1 parent 40042fc commit 3cd4b3f
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Showing 4 changed files with 25 additions and 5 deletions.
2 changes: 1 addition & 1 deletion common.gypi
Original file line number Diff line number Diff line change
Expand Up @@ -36,7 +36,7 @@

# Reset this number to 0 on major V8 upgrades.
# Increment by one for each non-official patch applied to deps/v8.
'v8_embedder_string': '-node.44',
'v8_embedder_string': '-node.45',

##### V8 defaults for Node.js #####

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3 changes: 2 additions & 1 deletion deps/v8/src/interpreter/bytecode-generator.cc
Original file line number Diff line number Diff line change
Expand Up @@ -4891,8 +4891,9 @@ void BytecodeGenerator::VisitCall(Call* expr) {
Property* property = chain->expression()->AsProperty();
BuildOptionalChain([&]() {
VisitAndPushIntoRegisterList(property->obj(), &args);
VisitPropertyLoadForRegister(args.last_register(), property, callee);
VisitPropertyLoad(args.last_register(), property);
});
builder()->StoreAccumulatorInRegister(callee);
break;
}
case Call::SUPER_CALL:
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6 changes: 3 additions & 3 deletions deps/v8/test/mjsunit/regress/regress-crbug-1038178.js
Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@ function opt(){
(((function(){})())?.v)()
}
%PrepareFunctionForOptimization(opt)
assertThrows(opt());
assertThrows(opt());
assertThrows(() => opt());
assertThrows(() => opt());
%OptimizeFunctionOnNextCall(opt)
assertThrows(opt());
assertThrows(() => opt());
19 changes: 19 additions & 0 deletions deps/v8/test/mjsunit/regress/regress-crbug-1171954.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
// Copyright 2021 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Flags: --always-opt

// This causes the register used by the call in the later try-catch block to be
// used by the ToName conversion for null which causes a DCHECK fail when
// compiling. If register allocation changes, this test may no longer reproduce
// the crash but it is not easy write a proper test because it is linked to
// register allocation. This test should always work, so shouldn't cause any
// flakes.
try {
var { [null]: __v_12, } = {};
} catch (e) {}

try {
assertEquals((__v_40?.o?.m)().p);
} catch (e) {}

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