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authorJoey Ye <joey.ye@arm.com>2014-02-27 17:44:43 +0000
committerJoseph Myers <joseph@codesourcery.com>2014-02-27 17:44:43 +0000
commit7d92b78723848ae616709eb8f0191ea067025b18 (patch)
tree9aea24dcf073852560bd0d88dc8befd39c540603 /bits/fcntl.h
parent2b7f4f2cada566fe5da5b9260b3ca7b21db2a7e6 (diff)
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Fix ARM NAN fraction bits.
Current ARM soft-float implementation is violating the RTABI (http://infocenter.arm.com/help/topic/com.arm.doc.ihi0043d/IHI0043D_rtabi.pdf) Section 4.1.1.1: When not otherwise specified by IEEE 754, the result on an invalid operation should be the quiet NaN bit pattern with only the most significant bit of the significand set, and all other significand bits zero. This patch fixes it by setting _FP_NANFRAC_* to zero. Ran make check test with -mfloat-abi=soft. No regression. * sysdeps/arm/soft-fp/sfp-machine.h (_FP_NANFRAC_S, _FP_NANFRAC_D) (_FP_NANFRAC_Q): Set to zero.
Diffstat (limited to 'bits/fcntl.h')
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