Merge remote-tracking branch 'remotes/rth-gitlab/tags/pull-tcg-20210619-2' into staging

TCI cleanup and re-encoding
Fixes for #367 and #390.
Move TCGCond to tcg/tcg-cond.h.
Fix for win32 qemu_try_memalign.

# gpg: Signature made Sun 20 Jun 2021 05:23:53 BST
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
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* remotes/rth-gitlab/tags/pull-tcg-20210619-2: (33 commits)
  util/oslib-win32: Fix fatal assertion in qemu_try_memalign
  tcg: expose TCGCond manipulation routines
  tcg: Restart when exhausting the stack frame
  tcg: Allocate sufficient storage in temp_allocate_frame
  tcg/sparc: Fix temp_allocate_frame vs sparc stack bias
  accel/tcg: Probe the proper permissions for atomic ops
  tests/tcg: Increase timeout for TCI
  tcg/tci: Use {set,clear}_helper_retaddr
  tcg/tci: Remove the qemu_ld/st_type macros
  Revert "tcg/tci: Use exec/cpu_ldst.h interfaces"
  tcg/tci: Split out tci_qemu_ld, tci_qemu_st
  tcg/tci: Implement add2, sub2
  tcg/tci: Implement mulu2, muls2
  tcg/tci: Implement clz, ctz, ctpop
  tcg/tci: Implement extract, sextract
  tcg/tci: Implement andc, orc, eqv, nand, nor
  tcg/tci: Implement movcond
  tcg/tci: Implement goto_ptr
  tcg/tci: Change encoding to uint32_t units
  tcg/tci: Remove tci_write_reg
  ...

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