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author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2019-03-26 13:32:19 +0000 |
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committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2019-06-12 14:32:18 -0300 |
commit | 197dbda1a155324bfc52ae1bc3cc26e57955c1cf (patch) | |
tree | f1f086a11f7ae0fa4847b30f160ce02f142e1569 /gshadow | |
parent | 2731a326b10ba6d1646043cf28290584238b7ce4 (diff) | |
download | glibc-197dbda1a155324bfc52ae1bc3cc26e57955c1cf.tar.gz glibc-197dbda1a155324bfc52ae1bc3cc26e57955c1cf.tar.xz glibc-197dbda1a155324bfc52ae1bc3cc26e57955c1cf.zip |
math: Use wordsize-64 version for isnan
- math.h will use compiler builtin for gcc 4.4 when built without -fsignaling-nans and the builtin is expanded inline for all support architectures. As an example, there is no intra isnan call on libm for the architecture I checked, x86, arm, aarch64, and powerpc. - The resulting binary difference on 32 bits architecture is minimum for the non hotspot symbol. - It helps wordsize-64 architectures that use ldbl-opt. - It add some code simplification with reduction of duplicated implementations. Checked on powerpc-linux-gnu (built without --with-cpu, with --with-cpu=power4 and with --with-cpu=power5+ and --disable-multi-arch), powerpc64-linux-gnu (built without --with-cp and with --with-cpu=power5+ and --disable-multi-arch). * sysdeps/ieee754/dbl-64/wordsize-64/s_isnan.c: Move to ... * sysdeps/ieee754/dbl-64/s_isnan.c: ... here and format code. Reviewed-by: Gabriel F. T. Gomes <gabrielftg@linux.ibm.com>
Diffstat (limited to 'gshadow')
0 files changed, 0 insertions, 0 deletions