[LLVMbugs] [Bug 1130] NEW: JIT (x86) produces wrong exception for i8 srem

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=1130

           Summary: JIT (x86) produces wrong exception for i8 srem
           Product: tools
           Version: trunk
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: lli
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: baldrick at free.fr


$ lli f.bc
lli((anonymous namespace)::PrintStackTrace()+0x1a)[0x878977a]
lli((anonymous namespace)::SignalHandler(int)+0x112)[0x8789a40]
[0xb7f04420]
lli(llvm::ExecutionEngine::runFunctionAsMain(llvm::Function*, 
std::vector<std::basic_string<char, std::char_traits<char>, 
std::allocator<char> >, std::allocator<std::basic_string<char, 
std::char_traits<char>, std::allocator<char> > > > const&, char const* 
const*)+0x23a)[0x84cc066]
lli(main+0x2ba)[0x83b6056]
/lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xdc)[0xb7c8cebc]
lli[0x83b58e1]
Floating point exception

vs

$ lli -force-interpreter f.bc
-128 rd 1 = 0

The C back-end agrees with lli -force-interpreter (and so do I!).
Running "bugpoint --run-jit f.bc" reduces it a bit.

I send the byte-code in an attachment in a moment.

PS: Probably I should report this for one of the libraries, but
it is not clear where x86 JIT bugs should go.



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