Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20170605' into staging

Queued TCG patches

# gpg: Signature made Mon 05 Jun 2017 17:48:42 BST
# gpg:                using RSA key 0xAD1270CC4DD0279B
# gpg: Good signature from "Richard Henderson <rth7680@gmail.com>"
# gpg:                 aka "Richard Henderson <rth@redhat.com>"
# gpg:                 aka "Richard Henderson <rth@twiddle.net>"
# Primary key fingerprint: 9CB1 8DDA F8E8 49AD 2AFC  16A4 AD12 70CC 4DD0 279B

* remotes/rth/tags/pull-tcg-20170605: (26 commits)
  target/alpha: Use goto_tb for fallthru between TBs
  target/alpha: Implement WTINT inline
  target/mips: optimize indirect branches
  target/mips: optimize cross-page direct jumps in softmmu
  target/aarch64: optimize indirect branches
  target/aarch64: optimize cross-page direct jumps in softmmu
  target/hppa: Use tcg_gen_lookup_and_goto_ptr
  target/s390: Use tcg_gen_lookup_and_goto_ptr
  tcg/mips: implement goto_ptr
  tcg/arm: Implement goto_ptr
  tcg/arm: Clarify tcg_out_bx for arm4 host
  tcg/s390: Implement goto_ptr
  tcg/sparc: Implement goto_ptr
  tcg/aarch64: Implement goto_ptr
  tcg/ppc: Implement goto_ptr
  tb-hash: improve tb_jmp_cache hash function in user mode
  target/i386: optimize indirect branches
  target/i386: optimize cross-page direct jumps in softmmu
  target/i386: introduce gen_jr helper to generate lookup_and_goto_ptr
  target/arm: optimize indirect branches
  ...

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