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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [JSC] Recover parser performance regression by async support"
href="https://bugs.webkit.org/show_bug.cgi?id=158228#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [JSC] Recover parser performance regression by async support"
href="https://bugs.webkit.org/show_bug.cgi?id=158228">bug 158228</a>
from <span class="vcard"><a class="email" href="mailto:utatane.tea@gmail.com" title="Yusuke Suzuki <utatane.tea@gmail.com>"> <span class="fn">Yusuke Suzuki</span></a>
</span></b>
<pre>parseMode == SourceParseMode::GeneratorBodyMode || isAsyncFunctionBodyParseMode(parseMode) is compiled by clang as follows,
5967: 41 83 fc 02 cmp $0x2,%r12d
596b: 74 28 je 5995 <JSC::Parser<JSC::Lexer<unsigned char> >::parseInner(JSC::Identifier const&, JSC::SourceParseMode)+0x1c5>
596d: 44 89 e0 mov %r12d,%eax
5970: 25 80 01 00 00 and $0x180,%eax
5975: 66 85 c0 test %ax,%ax
5978: 75 b jne 5995 <JSC::Parser<JSC::Lexer<unsigned char> >::parseInner(JSC::Identifier const&, JSC::SourceParseMode)+0x1c5></pre>
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