Re: [Qemu-devel] [PATCH 0/5] tcg: Initialize prologue after guest_base fixed

[Aurelien Jarno <aurelien@aurel32.net>]

On Thu, May 06, 2010 at 08:50:40AM -0700, Richard Henderson wrote:
> By doing this we can make any number of decisions about code generation
> during the prologue.  For instance, we can decide whether or not to
> reserve a register to hold the value of GUEST_BASE.
> 
> This fixes a latent bug in the two ppc ports in that GUEST_BASE was 
> being loaded as an immediate before the final value of GUEST_BASE is
> computed.
> 
> This also fixes some register reservation problems I noticed in the
> ia64 port, while trying to decide which register to use for holding
> GUEST_BASE across the TB.
> 
> 
> r~
> 
> 
> 
> Richard Henderson (5):
>   tcg: Initialize the prologue after GUEST_BASE is fixed.
>   tcg-hppa: Load GUEST_BASE as an immediate.
>   tcg-ia64: Fix some register usage issues.
>   tcg-ia64: Load GUEST_BASE into a register.
>   tcg-ppc: Conditionally reserve TCG_GUEST_BASE_REG.
> 
>  bsd-user/main.c        |    9 ++-
>  exec.c                 |    5 +
>  linux-user/main.c      |    9 ++-
>  tcg/hppa/tcg-target.c  |   12 +--
>  tcg/ia64/tcg-target.c  |  199 +++++++++++++++++++++++++++++++-----------------
>  tcg/ppc/tcg-target.c   |    8 +-
>  tcg/ppc64/tcg-target.c |    9 +-
>  tcg/tcg.c              |    3 +
>  tcg/tcg.h              |    1 +
>  9 files changed, 167 insertions(+), 88 deletions(-)
> 

Thanks, applied patches 1-4.

-- 
Aurelien Jarno                          GPG: 1024D/F1BCDB73
aurelien@aurel32.net                 http://www.aurel32.net