Bug 164520

Summary:	Spread operation in the DFG/FTL for non-arrays can directly make a JS call to the builtin function that does iteration
Product:	WebKit	Reporter:	Saam Barati <saam>
Component:	JavaScriptCore	Assignee:	Saam Barati <saam>
Status:	NEW ---
Severity:	Normal	CC:	benjamin, fpizlo, ggaren, gskachkov, jfbastien, keith_miller, mark.lam, msaboff, oliver, ticaiolima, ysuzuki
Priority:	P2
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Saam Barati 2016-11-08 11:03:01 PST

After https://bugs.webkit.org/show_bug.cgi?id=164258 lands, we will first call into C, and then call back out to JS. We should probably make the JIT just call directly to JS. This will probably improve the speed, especially for short iterations.