On 02/19/2018 11:31 AM, Richard Henderson wrote:
> On 02/15/2018 07:18 PM, Emilio G. Cota wrote:
>> sh4 will need it.
>>
>> Signed-off-by: Emilio G. Cota <c...@braap.org>
>> ---
>>  accel/tcg/translator.c     | 2 +-
>>  include/exec/translator.h  | 3 ++-
>>  target/alpha/translate.c   | 3 ++-
>>  target/arm/translate-a64.c | 4 +++-
>>  target/arm/translate.c     | 4 +++-
>>  target/hppa/translate.c    | 4 +++-
>>  target/i386/translate.c    | 3 ++-
>>  7 files changed, 16 insertions(+), 7 deletions(-)
> 
> There is another possibility, which is to move max_insns into DisasContextBase
> where it can be modified.  This would allow the gusa sequence to be handled
> differently as an instance of the translate_insn hook, which would allow a
> breakpoint to be placed on the first insn of a gusa sequence.
> 
> I guess I don't have strong feelings either way.

Thinking some more, I *do* prefer max_insns in DisasContextBase.

For ARM SVE, implementing MOVPRFX, I would like to be able to tell if we intend
to break the TB between MOVPRFX and the instruction being prefixed.  I can't do
that if the data is private to translator.c.


r~


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