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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - DFG string concatenation shouldn't be playing fast and loose with effects and OSR exit"
href="https://bugs.webkit.org/show_bug.cgi?id=148338#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - DFG string concatenation shouldn't be playing fast and loose with effects and OSR exit"
href="https://bugs.webkit.org/show_bug.cgi?id=148338">bug 148338</a>
from <span class="vcard"><a class="email" href="mailto:fpizlo@apple.com" title="Filip Pizlo <fpizlo@apple.com>"> <span class="fn">Filip Pizlo</span></a>
</span></b>
<pre>Proposal:
- ByteCodeParser uses a new node called StrCat that takes two or three arguments, and is basically a MakeRope with ToString rolled together.
- FixupPhase simplifies ValueAdd to MakeRope only if we can speculate that the inputs are strings.
- FixupPhase simplifies StrCat the same way it does for ValueAdd.</pre>
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