UNCONFIRMED 119509
DFG-separate-thread implement DFG separate thread on 32 bit ARM_THUMB2 
https://bugs.webkit.org/show_bug.cgi?id=119509
Summary implement DFG separate thread on 32 bit ARM_THUMB2
Peng Xinchao
Reported 2013-08-05 21:11:18 PDT
DFG Separate Thread need to enable concurrent_jit . In platform.h , /* Concurrent JIT only works on 64-bit platforms because it requires that values get stored to atomically. This is trivially true on 64-bit platforms, but not true at all on 32-bit platforms where values are composed of two separate sub-values. */ #if PLATFORM(MAC) && ENABLE(DFG_JIT) && USE(JSVALUE64) #define ENABLE_CONCURRENT_JIT 1 #endif In fact ,ByteSpinLock need implement CAS .But on ARM_THUMB2 , function"weakCompareAndSwap" have implemented . Why not enable CONCURRENT_JIT on ARM_THUMB2?
Attachments
Add attachment proposed patch, testcase, etc.
Note You need to log in before you can comment on or make changes to this bug.