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Re: Patch for bz#11589 - jn calculation
David Miller <davem@davemloft.net> writes:
> From: Andreas Schwab <schwab@linux-m68k.org>
> Date: Thu, 29 Sep 2011 23:40:08 +0200
>
>> I'm only interested in the long double tests.
>
> Well, IBM's changes broke the jn tests for all flat types
> on sparc, not just long-double.
Nothing broke them, they are just new tests that expose existing bugs.
> testing long double (without inline functions)
> Failure: Test: jn (2, 2.4048255576957729) == 0.43175480701968038399746111312430703
> Result:
> is: 4.31754807019680381803e-01 0x1.ba1deea029493e99a8fcp-2
> should be: 4.31754807019680383997e-01 0x1.ba1deea029493f3b959ep-2
> difference: 2.19448415868800817350e-18 0x1.43d9447b3c18e8000000p-59
> ulp : 45577652813040756.0000
So the j0/j1 implementations were always broken.
Andreas.
--
Andreas Schwab, schwab@redhat.com
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