We autodetect the presence of FPRCVT in the test cross compiler,
which is a recent feature in GCC and not supported by many distros
yet. If this is in place, we compile the existing fcvt.c test with
an extra compiler flag which uses the new SIMD instructions; the
output from the test is unchanged.
The existing [US]CVTF instructions do not have a test, so no new
tests are added for the SIMD versions. They have been tested manually
to check the new SIMD versions produce the same numerical results as
the existing versions.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Jim MacArthur <jim.macarthur@linaro.org>
Message-id: 20260630-jmac-fprcvt-v3-6-f4840d5e0a7f@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
97af096c69