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Re: [PATCH] update libm-test-ulps for new exp
On Thu, 12 Jul 2018, Szabolcs Nagy wrote:
> Update error bounds for the new exp implementation on alpha, hppa,
> m68k/coldfire, microblaze, mips/mips32, mips/mips64, nios2, powerpc,
> riscv/nofpu, riscv/rv64, s390, sh and sparc. Only non-nearest
> rounding ulp bounds increased. Did not run the math tests on real
> hardware, but used the following ULP bounds to generate the new files:
This is adding ulps for non-to-nearest tests on some architectures that
only support round-to-nearest and so have no such ulps in their existing
files.
(I am generically dubious of such an update not based on actually running
tests on the architectures involved - there can be architecture variations
because of differences in e.g. whether multiply and add get fused - but
adding ulps for tests that would not run on those architectures is
definitely wrong.)
--
Joseph S. Myers
joseph@codesourcery.com