From 2460d3aa21f04cdf28497683bd3e29183189f779 Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Wed, 21 Mar 2012 12:14:57 +0000 Subject: Fix pow of zero and infinity to large powers. --- ChangeLog | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'ChangeLog') diff --git a/ChangeLog b/ChangeLog index edac2dc045..d548878793 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,24 @@ +2012-03-20 Joseph Myers + + [BZ #3866] + * sysdeps/i386/fpu/e_pow.S (__ieee754_pow): Test for y outside the + range of signed 64-bit integers before using fistpll. Remove + checks for whether integers fit in mantissa bits. + * sysdeps/i386/fpu/e_powf.S (__ieee754_powf): Test for y outside + the range of signed 32-bit integers before using fistpl. Remove + checks for whether integers fit in mantissa bits. + * sysdeps/i386/fpu/e_powl.S (p64): New object. + (__ieee754_powl): Test for y outside the range of signed 64-bit + integers before using fistpll. Reduce 64-bit values to 63-bit + ones as needed. + * sysdeps/ieee754/dbl-64/e_pow.c (__ieee754_pow): Ensure + divide-by-zero is raised for zero to large negative powers. + * sysdeps/x86_64/fpu/e_powl.S (p64): New object. + (__ieee754_powl): Test for y outside the range of signed 64-bit + integers before using fistpll. Reduce 64-bit values to 63-bit + ones as needed. + * math/libm-test.inc (pow_test): Add more tests. + 2012-03-20 H.J. Lu * debug/backtracesymsfd.c: Include <_itoa.h> instead of -- cgit 1.4.1