[Qemu-devel] [PATCH] target-sparc register window handling

[Richard Henderson]

This applies with or without the sparc-compare patch set I
recently sent, and it works with the same set of tests.

I've not had time to do true benchmarking on this, but it
does reduce the size of the generated code:

BEFORE
Translation buffer state:
gen code size       509344/33431552
TB count            2196/262144
TB avg target size  22 max=252 bytes
TB avg host size    231 bytes (expansion ratio: 10.3)
cross page TB count 0 (0%)
direct jump count   1153 (52%) (2 jumps=628 28%)

AFTER
Translation buffer state:
gen code size       418064/33431552
TB count            2196/262144
TB avg target size  22 max=252 bytes
TB avg host size    190 bytes (expansion ratio: 8.4)
cross page TB count 0 (0%)
direct jump count   1153 (52%) (2 jumps=628 28%)


r~


Richard Henderson (1):
  target-sparc: Use TCG registers for windowed registers

 gdbstub.c                          |   4 +-
 linux-user/main.c                  |  17 ++--
 linux-user/signal.c                |  78 +++++++--------
 linux-user/sparc/target_signal.h   |   2 +-
 linux-user/sparc64/target_signal.h |   2 +-
 monitor.c                          |   2 +-
 target-sparc/cpu.c                 |   3 +-
 target-sparc/cpu.h                 |  20 ++--
 target-sparc/int32_helper.c        |   4 +-
 target-sparc/ldst_helper.c         |  12 +--
 target-sparc/translate.c           | 188 +++++++++++++++++--------------------
 target-sparc/win_helper.c          |  56 ++++++-----
 12 files changed, 190 insertions(+), 198 deletions(-)

-- 
1.7.11.4