[Webkit-unassigned] [Bug 120033] Incorrect behavior on emscripten-compiled cube2hash

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=120033





--- Comment #5 from Filip Pizlo <fpizlo at apple.com>  2013-08-19 21:30:02 PST ---
(In reply to comment #0)
> Created an attachment (id=209135)
 --> (https://bugs.webkit.org/attachment.cgi?id=209135&action=review) [details]
> cube2hash
> 
> Attached is the cube2 hash function compiled from C using emscripten. In jsc it gives incorrect results, for example
> 
> $ jsc src.cpp.o.js  -- fleefl
> hash value: 2912ECE742D4821CD4B778CEBEACD081E97D3F4CBEACD081
> $ d8 src.cpp.o.js -- fleefl
> hash value: 892BDB6FD3F62E863D63DA55851700FDE3ACF30204798CE9
> $ mozjs src.cpp.o.js fleefl
> hash value: 892BDB6FD3F62E863D63DA55851700FDE3ACF30204798CE9
> 
> (i.e. jsc differs from v8 and sm)
> 
> Sorry for the non-trivial size, almost all the emscripten test suite passes but for a few larger tests I am afraid, all the smaller ones do not fail.

Fascinating.  Thanks for the bug report, I'll look.

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