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/qemu/include/tcg/
H A Dtcg.hb125f9dc7bd68cd4c57189db4da83b0620b28a72 Tue Sep 22 20:01:15 UTC 2015 Richard Henderson <rth@twiddle.net> tcg: Check for overflow via highwater mark

We currently pre-compute an worst case code size for any TB, which
works out to be 122kB. Since the average TB size is near 1kB, this
wastes quite a lot of storage.

Instead, check for overflow in between generating code for each opcode.
The overhead of the check isn't measurable and wastage is minimized.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
/qemu/accel/tcg/
H A Dtranslate-all.cb125f9dc7bd68cd4c57189db4da83b0620b28a72 Tue Sep 22 20:01:15 UTC 2015 Richard Henderson <rth@twiddle.net> tcg: Check for overflow via highwater mark

We currently pre-compute an worst case code size for any TB, which
works out to be 122kB. Since the average TB size is near 1kB, this
wastes quite a lot of storage.

Instead, check for overflow in between generating code for each opcode.
The overhead of the check isn't measurable and wastage is minimized.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
/qemu/tcg/
H A Dtcg.cb125f9dc7bd68cd4c57189db4da83b0620b28a72 Tue Sep 22 20:01:15 UTC 2015 Richard Henderson <rth@twiddle.net> tcg: Check for overflow via highwater mark

We currently pre-compute an worst case code size for any TB, which
works out to be 122kB. Since the average TB size is near 1kB, this
wastes quite a lot of storage.

Instead, check for overflow in between generating code for each opcode.
The overhead of the check isn't measurable and wastage is minimized.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>