[B2-devel] B2/JIT for x86_64

[Gwenole B. <gb...@di...>]

Hi,

I revived and fixed the x86_64 port that started almost two years ago.=20=

Performance may look lower than with the 32-bit binary because it's=20
currently lacking two key features that will yield an interesting speed=20=

boost. For now, it's a way to check the runtime assembler is working=20
properly for a new PowerPC JIT.

Talking about a verifier, I currently have a test code=20
(test_codegen_x86.cpp) that covers only 5.5 million variations and is=20
lacking some others. Someone may be interested in contributing a=20
rewrite that uses a derivative of GNU disassembler's internal=20
structures instead of string compares to check things. I simply=20
implemented that rapidly for other matters. ;-)

My test machine for the port is based on Xeon EM64T but it should work=20=

fine on AMD64 processors too. Relevant code is in CVS.

Bye,
Gwenol=E9.=