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Diffstat (limited to 'patchwork/tests/mail/0010-invalid-charset.mbox')
| -rw-r--r-- | patchwork/tests/mail/0010-invalid-charset.mbox | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/patchwork/tests/mail/0010-invalid-charset.mbox b/patchwork/tests/mail/0010-invalid-charset.mbox new file mode 100644 index 0000000..10b369d --- /dev/null +++ b/patchwork/tests/mail/0010-invalid-charset.mbox @@ -0,0 +1,90 @@ +From libc-alpha-return-50517-siddhesh=redhat.com@sourceware.org Thu Jun 5 10:36:33 2014 +Received: (qmail 11948 invoked by alias); 4 Jun 2014 17:51:01 -0000 +Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm +List-Id: <libc-alpha.sourceware.org> +Sender: libc-alpha-owner@sourceware.org +Date: Wed, 4 Jun 2014 17:50:46 +0000 +From: "Joseph S. Myers" <joseph@codesourcery.com> +To: <libc-alpha@sourceware.org> +Subject: Fix pow overflow in non-default rounding modes (bug 16315) +Message-ID: <Pine.LNX.4.64.1406041749420.3719@digraph.polyomino.org.uk> +MIME-Version: 1.0 +Content-Type: multipart/mixed; + boundary="-1152306461-1522705971-1401904246=:3719" +Content-Length: 24171 + +---1152306461-1522705971-1401904246=:3719 +Content-Type: text/plain; charset="none" +Content-Transfer-Encoding: QUOTED-PRINTABLE + +This patch, relative to a tree with +<https://sourceware.org/ml/libc-alpha/2014-06/msg00076.html> applied, +fixes bug 16315, bad pow handling of overflow/underflow in non-default +rounding modes. Tests of pow are duly converted to ALL_RM_TEST to run +all tests in all rounding modes. + +There are two main issues here. First, various implementations +compute a negative result by negating a positive result, but this +yields inappropriate overflow / underflow values for directed +rounding, so either overflow / underflow results need recomputing in +the correct sign, or the relevant overflowing / underflowing operation +needs to be made to have a result of the correct sign. Second, the +dbl-64 implementation sets FE_TONEAREST internally; in the overflow / +underflow case, the result needs recomputing in the original rounding +mode. + +Tested x86_64 and x86 and ulps updated accordingly. + +(auto-libm-test-out diffs omitted below.) + +2014-06-04 Joseph Myers <joseph@codesourcery.com> + +=09[BZ #16315] +=09* sysdeps/i386/fpu/e_pow.S (__ieee754_pow): Ensure possibly +=09overflowing or underflowing operations take place with sign of +=09result. +=09* sysdeps/i386/fpu/e_powf.S (__ieee754_powf): Likewise. +=09* sysdeps/i386/fpu/e_powl.S (__ieee754_powl): Likewise. +=09* sysdeps/ieee754/dbl-64/e_pow.c: Include <math.h>. +=09(__ieee754_pow): Recompute overflowing and underflowing results in +=09original rounding mode. +=09* sysdeps/x86/fpu/powl_helper.c: Include <stdbool.h>. +=09(__powl_helper): Allow negative argument X and scale negated value +=09as needed. Avoid passing value outside [-1, 1] to f2xm1. +=09* sysdeps/x86_64/fpu/e_powl.S (__ieee754_powl): Ensure possibly +=09overflowing or underflowing operations take place with sign of +=09result. +=09* sysdeps/x86_64/fpu/multiarch/e_pow.c [HAVE_FMA4_SUPPORT]: +=09Include <math.h>. +=09* math/auto-libm-test-in: Add more tests of pow. +=09* math/auto-libm-test-out: Regenerated. +=09* math/libm-test.inc (pow_test): Use ALL_RM_TEST. +=09(pow_tonearest_test_data): Remove. +=09(pow_test_tonearest): Likewise. +=09(pow_towardzero_test_data): Likewise. +=09(pow_test_towardzero): Likewise. +=09(pow_downward_test_data): Likewise. +=09(pow_test_downward): Likewise. +=09(pow_upward_test_data): Likewise. +=09(pow_test_upward): Likewise. +=09(main): Don't call removed functions. +=09* sysdeps/i386/fpu/libm-test-ulps: Update. +=09* sysdeps/x86_64/fpu/libm-test-ulps: Likewise. + +diff --git a/sysdeps/x86_64/fpu/multiarch/e_pow.c b/sysdeps/x86_64/fpu/mult= +iarch/e_pow.c +index a740b6c..433cce0 100644 +--- a/sysdeps/x86_64/fpu/multiarch/e_pow.c ++++ b/sysdeps/x86_64/fpu/multiarch/e_pow.c +@@ -1,5 +1,6 @@ + #ifdef HAVE_FMA4_SUPPORT + # include <init-arch.h> ++# include <math.h> + # include <math_private.h> +=20 + extern double __ieee754_pow_sse2 (double, double); + +--=20 +Joseph S. Myers +joseph@codesourcery.com +---1152306461-1522705971-1401904246=:3719-- |