Joseph Myers 2e3d0de31f Fix ulps regeneration for *-finite tests. ... On running tests after from-scratch ulps regeneration, I found that some libm tests failed with ulps in excess of those recorded in the from-scratch regeneration, which should never happen unless those ulps exceed the limit on ulps that can go in libm-test-ulps files. Failure: Test: atan2_upward (inf, -inf) Result: is: 2.35619498e+00 0x1.2d97ccp+1 should be: 2.35619450e+00 0x1.2d97c8p+1 difference: 4.76837159e-07 0x1.000000p-21 ulp : 2.0000 max.ulp : 1.0000 Maximal error of `atan2_upward' is : 2 ulp accepted: 1 ulp Failure: Test: carg_upward (-inf + inf i) Result: is: 2.35619498e+00 0x1.2d97ccp+1 should be: 2.35619450e+00 0x1.2d97c8p+1 difference: 4.76837159e-07 0x1.000000p-21 ulp : 2.0000 max.ulp : 1.0000 Maximal error of `carg_upward' is : 2 ulp accepted: 1 ulp The problem comes from the addition of tests for the finite-math-only versions of libm functions. Those tests share ulps with the default function variants. make regen-ulps runs the default tests before the finite-math-only tests, concatenating the resulting ulps before feeding them to gen-libm-test.pl to generate a new libm-test-ulps file. But gen-libm-test.pl always takes the last ulps value given for any (function, type) pair. So, if the largest ulps for a function come from non-finite inputs, a from-scratch regeneration loses those ulps. This patch fixes gen-libm-test.pl, in the case where there are multiple ulps values for a (function, type) pair - which can only happen as part of a regeneration - to take the largest ulps value rather than the last one. Tested for ARM / MIPS / powerpc-nofpu. * math/gen-libm-test.pl (parse_ulps): Do not reduce already-recorded ulps. * sysdeps/arm/libm-test-ulps: Regenerated. * sysdeps/mips/mips32/libm-test-ulps: Likewise. * sysdeps/mips/mips64/libm-test-ulps: Likewise. * sysdeps/powerpc/nofpu/libm-test-ulps: Likewise.		2016-01-19 21:42:58 +00:00
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fpu	S/390: Do not raise inexact exception in lrint/lround. [BZ #19486]	2016-01-18 12:48:06 +01:00
mips16	Move mips from ports to libc.	2014-02-10 23:30:21 +00:00
crti.S	Update copyright dates with scripts/update-copyrights.	2016-01-04 16:05:18 +00:00
crtn.S	Update copyright dates with scripts/update-copyrights.	2016-01-04 16:05:18 +00:00
Implies	Remove sysdeps/mips soft-fp subdirectories.	2015-02-10 22:01:39 +00:00
libm-test-ulps	Fix ulps regeneration for *-finite tests.	2016-01-19 21:42:58 +00:00
Makefile	Move mips from ports to libc.	2014-02-10 23:30:21 +00:00
sfp-machine.h	Remove sysdeps/mips soft-fp subdirectories.	2015-02-10 22:01:39 +00:00