Merge remote-tracking branch 'remotes/rth/tags/tcg-pull-20150313' into staging

Pool TCG data, and ALWAYS/NEVER fix

# gpg: Signature made Fri Mar 13 20:09:09 2015 GMT using RSA key ID 4DD0279B
# gpg: Good signature from "Richard Henderson <rth7680@gmail.com>"
# gpg:                 aka "Richard Henderson <rth@redhat.com>"
# gpg:                 aka "Richard Henderson <rth@twiddle.net>"

* remotes/rth/tags/tcg-pull-20150313:
  tcg: Complete handling of ALWAYS and NEVER
  tcg: Use tcg_malloc to allocate TCGLabel
  tcg: Change generator-side labels to a pointer
  tcg: Change translator-side labels to a pointer
  tcg-ia64: Use tcg_malloc to allocate TCGLabelQemuLdst
  tcg: Use tcg_malloc to allocate TCGLabelQemuLdst

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>