Hexagon (target/hexagon) Add overrides for loop setup instructions

These instructions have implicit writes to registers, so we don't
want them to be helpers when idef-parser is off.

Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230427230012.3800327-4-tsimpson@quicinc.com>
2 files changed