Add libm-test support for per-rounding-mode manually specified results

[Andreas Jaeger]

On 03/11/2014 01:21 AM, Joseph S. Myers wrote:
> This patch continues the libm-test move towards automatic testing of
> all test inputs in all rounding modes by adding gen-libm-test.pl
> support for tests specifying results in each rounding mode manually.
> 
> Previously a TEST_* line could specify arguments and results, or
> arguments, results and flags.  Now there is the option of (arguments,
> results-rd, flags-rd, results-rn, flags-rn, results-rz, flags-rz,
> results-ru, flags-ru).  This is used to replace the separate arrays of
> results in each rounding mode for lrint, llrint and rint.  (In the
> case of rint, some tests were only in rint_test_data and needed to
> have expectations for non-default rounding modes added, which I did
> manually.  In various cases there were slight differences in things
> such as the ordering of tests in the arrays for each mode.)

ok, thanks,

Andreas
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