[LLVMdev] Bug in x86 JIT fast emitter.
marks at dcs.gla.ac.uk
Fri Jun 12 13:08:03 PDT 2009
Any plans to add it any time soon?
It would be really appreciated.
Evan Cheng wrote:
> X86 JIT does not yet support TLS.
> On Jun 12, 2009, at 2:48 AM, Mark Shannon wrote:
>> Hi there,
>> I think I've found a bug in the x86 JIT. I get an assertion failure
>> using thread-local variables and the fast emitter.
>> It only happens with the JIT, the fast emiiter and thread-locals.
>> (The IR passes the verifier)
>> Here's the failure:
>> X86CodeEmitter.cpp:516: void<unnamed>::Emitter::emitInstruction(const
>> llvm::MachineInstr&, const llvm::TargetInstrDesc*): Assertion `0 &&
>> "psuedo instructions should be removed before code emission"' failed.
>> There is a problem with submitting a bug-report, however.
>> Since llc has no trouble with thread-locals, I cannot actually
>> the assertion failure, without my compiler-generator.
>> I can dump out the IR, but it is rather large.
>> Is there a way to get llc to use the same emitter as the JIT, so
>> that I
>> can produce a reasonably sized test-case.
>> I tried the -fast flag, but it compiles correctly.
>> LLVM Developers mailing list
>> LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu
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