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authorliuhongt <hongtao.liu@intel.com>2021-07-07 10:07:59 +0800
committerH.J. Lu <hjl.tools@gmail.com>2021-07-07 08:01:32 -0700
commit6ec6c77867af4ddfec7323e0ac6ede89effca852 (patch)
tree1797f50a472aa5c79e68342023f69b621505e9f8 /wcsmbs/wcsrchr.c
parentb46cfcef3f7dab8e90729c6616ac1420f2642245 (diff)
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soft-fp: Add __extendhfsf2/__extendhfdf2, __truncsfhf2/__truncdfhf2, __eqhf2/__nehf2
1. Add __extendhfdf2/__extendhfsf2 to return an IEEE half converted to IEEE double/single.
2. Add __truncdfhf2/__extendsfhf2 to truncate IEEE double/single into IEEE half.
3. Add __eqhf2/__nehf2 to return 0 if a == b and a,b are not NAN, otherwise return 1.

These are needed by x86 _Float16:

https://software.intel.com/content/www/us/en/develop/download/intel-avx512-fp16-architecture-specification.html

support in GCC.
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