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Re: [PATCH v4 15/17] RISC-V: Add ABI Lists


On Sat, 13 Jan 2018, Palmer Dabbelt wrote:

> The libm-test-ulps* are just placeholders, so they're almost certainly
> nonsense.  Aside from those, I started with the aarch64 ABI lists and

You need a real libm-test-ulps (truncate the placeholder and do "make 
regen-ulps" for a hard-float configuration).

(It's conceivable that a libm-test-ulps file generated for a hard-float 
configuration won't quite suffice for a soft-float one - that another 
"make regen-ulps" is needed for soft-float - if any functions have smaller 
ulps for hard-float because of use of fma in contracted operations.  But 
certainly the initial generate needs to be for hard-float so you get ulps 
for non-default rounding modes, given a correct math-tests.h.)

-- 
Joseph S. Myers
joseph@codesourcery.com


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