as -gstabs does not work on ia64

[Andreas Schwab]

Running the ia64 assembler with the -gstabs option fails for predicated
instructions, because it tries to insert generated .stabn insnsn between
the predicate and the actual insn, and ia64_flush_insns then complains
about "qualifying predicate not followed by instruction".  Now stabs isn't
actually working in general on 64 bit targets (according to Richard
Henderson on gcc-patches).  Should -gstabs be ignored on ia64?

Andreas.

-- 
Andreas Schwab                                  "And now for something
Andreas.Schwab@suse.de				completely different."
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