Performance dashboard identified a 14.9% regression in v8/Wasm/AngryBots/RelocSize on Atom_x64 at revision range 48689:48689. Graph: https://chromeperf.appspot.com/report?masters=internal.client.v8&bots=Atom_x64&tests=v8%2FWasm%2FAngryBots%2FRelocSize&checked=RelocSize%2CRelocSize_ref%2Cref&rev=48689

This is the CL where we now use 64 bit operations for the bounds check and memory accesses.
An increase of 15-16% in code size and especially reloc size is unexpected. We should investigate why this happens.

Note that this also regresses asm.js code size and probably performance (not all bots have run yet - let's see how severe the regressions for asm.js really are).