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tcg: define CF_PARALLEL and use it for TB hashing along with CF_COUNT_MASK

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This will enable us to decouple code translation from the value
of parallel_cpus at any given time. It will also help us minimize
TB flushes when generating code via EXCP_ATOMIC.

Note that the declaration of parallel_cpus is brought to exec-all.h
to be able to define there the "curr_cflags" inline.

Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Emilio G. Cota 2017-07-11 14:29:37 -04:00 • committed by Richard Henderson
parent e89b28a635
commit 4e2ca83e71
10 changed files with 65 additions and 39 deletions
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2
exec.c
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@ -2476,7 +2476,7 @@ static void check_watchpoint(int offset, int len, MemTxAttrs attrs, int flags)
cpu_loop_exit(cpu);
} else {
cpu_get_tb_cpu_state(env, &pc, &cs_base, &cpu_flags);
tb_gen_code(cpu, pc, cs_base, cpu_flags, 1);
tb_gen_code(cpu, pc, cs_base, cpu_flags, 1 | curr_cflags());
cpu_loop_exit_noexc(cpu);
}
}