[webkit-dev] arm jit

Toshiyasu Morita tm_webkit at yahoo.com
Wed Jun 10 11:52:58 PDT 2009

Gavin Barraclough <barraclough at apple.com> wrote:

> We were (and remain) reluctant to accept a duplicate of the JIT into
the tree, rather > than a port of the existing JIT utilizing the
MacroAssembler abstraction.  We are

> concerned that it would be
extremely difficult to continue to maintain such a port as

> we move the
JIT technology forwards. 

Umm. IMHO The existing JIT is not well designed, with
processor-specific constants everywhere and "optimizations" such as
inlinining huge blocks of weakly-optimized code instead of making a
function call to properly-optimized code.

These issues make it difficult to both port and maintain.

If the other JIT is better designed than the current one, IMHO it should be considered for inclusion.


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