Re: [PATCH v3 00/16] tcg/mips: Unaligned access and other cleanup

[Philippe Mathieu-Daudé]

Cc'ing Jiaxun & Huacai.

On 8/18/21 10:19 PM, Richard Henderson wrote:
> Based-on: <20210818191920.390759-1-richard.henderson@linaro.org>
> ("[PATCH v3 00/66] Unaligned access for user-only")
> 
> Important points:
>   * Support unaligned accesses.
>   * Drop requirement for 256MB alignment of code_gen_buffer.
>   * Improvements to tcg_out_movi:
>     - Have a tb-relative register for mips64, reducing the
>       code size for most pointers,
>     - Try a few 3-insn sequences,
>     - Drop everything else into a constant pool.
> 
> 
> r~
> 
> 
> Richard Henderson (16):
>   tcg/mips: Support unaligned access for user-only
>   tcg/mips: Support unaligned access for softmmu
>   tcg/mips: Drop inline markers
>   tcg/mips: Move TCG_AREG0 to S8
>   tcg/mips: Move TCG_GUEST_BASE_REG to S7
>   tcg/mips: Unify TCG_GUEST_BASE_REG tests
>   tcg/mips: Allow JAL to be out of range in tcg_out_bswap_subr
>   tcg/mips: Unset TCG_TARGET_HAS_direct_jump
>   tcg/mips: Drop special alignment for code_gen_buffer
>   tcg/mips: Create and use TCG_REG_TB
>   tcg/mips: Split out tcg_out_movi_one
>   tcg/mips: Split out tcg_out_movi_two
>   tcg/mips: Use the constant pool for 64-bit constants
>   tcg/mips: Aggressively use the constant pool for n64 calls
>   tcg/mips: Try tb-relative addresses in tcg_out_movi
>   tcg/mips: Try three insns with shift and add in tcg_out_movi
> 
>  tcg/mips/tcg-target.h     |  17 +-
>  tcg/region.c              |  91 -----
>  tcg/mips/tcg-target.c.inc | 730 +++++++++++++++++++++++++++++++-------
>  3 files changed, 604 insertions(+), 234 deletions(-)
>