diff options
| author | Emilio G. Cota <cota@braap.org> | 2017-04-26 23:29:22 -0400 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2017-06-05 09:25:42 -0700 |
| commit | fe62089563ffc6a42f16ff28a6b6be34d2697766 (patch) | |
| tree | 711b363b2a6223a16b4865603c4221e202470899 /target/i386/translate.c | |
| parent | 1ebb1af1b8068fca36f48f738eb7146ecdf03625 (diff) | |
target/i386: optimize cross-page direct jumps in softmmu
Instead of unconditionally exiting to the exec loop, use the
gen_jr helper to jump to the target if it is valid.
Perf impact: see next commit's log.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <1493263764-18657-10-git-send-email-cota@braap.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target/i386/translate.c')
| -rw-r--r-- | target/i386/translate.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/target/i386/translate.c b/target/i386/translate.c index f0e48dc361..ea113fe5aa 100644 --- a/target/i386/translate.c +++ b/target/i386/translate.c @@ -2154,9 +2154,9 @@ static inline void gen_goto_tb(DisasContext *s, int tb_num, target_ulong eip) gen_jmp_im(eip); tcg_gen_exit_tb((uintptr_t)s->tb + tb_num); } else { - /* jump to another page: currently not optimized */ + /* jump to another page */ gen_jmp_im(eip); - gen_eob(s); + gen_jr(s, cpu_tmp0); } } |