Merge remote-tracking branch 'remotes/rth-gitlab/tags/pull-tcg-20220304' into staging

Merge remote-tracking branch 'remotes/rth-gitlab/tags/pull-tcg-20220304' into staging

Reorder do_constant_folding_cond test to satisfy valgrind.
Fix value of MAX_OPC_PARAM_IARGS.
Add opcodes for vector nand, nor, eqv.
Support vector nand, nor, eqv on PPC and S390X hosts.
Support AVX512VL, AVX512BW, AVX512DQ, and AVX512VBMI2.

# gpg: Signature made Fri 04 Mar 2022 18:59:08 GMT
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth-gitlab/tags/pull-tcg-20220304: (21 commits)
  tcg/i386: Implement bitsel for avx512
  tcg/i386: Implement more logical operations for avx512
  tcg/i386: Implement avx512 multiply
  tcg/i386: Implement avx512 min/max/abs
  tcg/i386: Expand scalar rotate with avx512 insns
  tcg/i386: Remove rotls_vec from tcg_target_op_def
  tcg/i386: Expand vector word rotate as avx512vbmi2 shift-double
  tcg/i386: Support avx512vbmi2 vector shift-double instructions
  tcg/i386: Implement avx512 variable rotate
  tcg/i386: Implement avx512 immediate rotate
  tcg/i386: Implement avx512 immediate sari shift
  tcg/i386: Implement avx512 scalar shift
  tcg/i386: Implement avx512 variable shifts
  tcg/i386: Use tcg_can_emit_vec_op in expand_vec_cmp_noinv
  tcg/i386: Add tcg_out_evex_opc
  tcg/i386: Detect AVX512
  tcg/s390x: Implement vector NAND, NOR, EQV
  tcg/ppc: Implement vector NAND, NOR, EQV
  tcg: Add opcodes for vector nand, nor, eqv
  tcg: Set MAX_OPC_PARAM_IARGS to 7
  ...

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