[Bug target/54142] ppc64 build failure - Unrecognized opcode: `sldi' (and `srdi`)

[gary at intrepid dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54142

--- Comment #3 from Gary Funck <gary at intrepid dot com> 2012-07-31 16:53:52 
UTC ---
(In reply to comment #2)
> sldi and srdi are both standard PowerPC64 instructions.
> 
> How did you configure GCC?

No special switches.  For example,

$src/configure \
  CFLAGS='-O0 -g3' --prefix=$rls \
  --enable-languages='c,c++' \
  --enable-checking=yes \
  --disable-bootstrap \
  --disable-multilib

is sufficient to reproduce the failure.