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| author | Ding-Kai Chen <dkchen@cadence.com> | 2016-10-18 19:06:33 +0000 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gcc.gnu.org> | 2016-10-18 19:06:33 +0000 |
| commit | 66192aa1294360c2522e2e30fc45f84a81719419 (patch) | |
| tree | a2d0d16150c035c44a7b6c0b5c853224f80ee657 /gcc | |
| parent | 6dddab0845c9056db22ecb86c12564244fa0f911 (diff) | |
| download | gcc-66192aa1294360c2522e2e30fc45f84a81719419.zip gcc-66192aa1294360c2522e2e30fc45f84a81719419.tar.gz gcc-66192aa1294360c2522e2e30fc45f84a81719419.tar.bz2 | |
xtensa: add HW FPU sequences for DIV/SQRT/RECIP/RSQRT
Use new FPU instruction sequences documented in the ISA book to
implement __divsf3, __divdf3, __recipsf2, __recipdf2, __rsqrtsf2,
__rsqrtdf2 and __ieee754_sqrtf and __ieee754_sqrt.
2016-10-18 Ding-Kai Chen <dkchen@cadence.com>
libgcc/
* config/xtensa/ieee754-df.S (__recipdf2, __rsqrtdf2,
__ieee754_sqrt): New functions.
(__divdf3): Add implementation with new FPU instructions under
#if XCHAL_HAVE_DFP_DIV.
* config/xtensa/ieee754-sf.S (__recipsf2, __rsqrtsf2,
__ieee754_sqrtf): New functions.
(__divsf3): Add implementation with new FPU instructions under
#if XCHAL_HAVE_FP_DIV.
* config/xtensa/t-xtensa (LIB1ASMFUNCS): Add _sqrtf, _recipsf2
_rsqrtsf2, _sqrt, _recipdf2 and _rsqrtdf2.
From-SVN: r241312
Diffstat (limited to 'gcc')
0 files changed, 0 insertions, 0 deletions