http://llvm.org/bugs/show_bug.cgi?id=8964
Summary: LLVM 2.8: still crashes on CPUs without CMOV
instruction
Product: libraries
Version: 2.8
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P
Component: Backend: X86
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
LLVM 2.8 still crashes on CPUs without CMOV instruction like AMD K6-2, VIA C3,
etc.
See http://bugs.debian.org/609759
Here's an output of the JIT with --debug, appears to contain all instruction
selection stuff:
http://bugs.debian.org/cgi-bin/bugreport.cgi?msg=45;filename=2011-01-12_clambc.767944.cbc.log;att=2;bug=609759
The .td files seem to properly guard all CMOV* instructions with HasCMOV, so I
don't see where its coming from.
Are there some machine-instr level optimizers that introduce it?
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