mirror of git://sourceware.org/git/glibc.git
5c2b21c478
The generic implementation is slight more optimized than the powerpc one, where it has a more optimized inf/nan check (by not using FP unit checks, along with branch prediction hints), and removed one branch by issuing trunc instead of a combination of floor/ceil (which also generated less code). On power10 with gcc 14.2.1: reciprocal-throughput master patch difference workload-0_1 1.5210 1.3942 8.34% workload-1_maxint 2.0926 1.3940 33.38% workload-maxint_maxfloat 1.7851 1.3940 21.91% workload-integral 1.5216 1.3941 8.37% latency master patch difference workload-0_1 1.5928 2.6337 -65.35% workload-1_maxint 3.2929 2.6337 20.02% workload-maxint_maxfloat 1.9697 2.6341 -33.73% workload-integral 2.0597 2.6337 -27.87% Checked on powerpc64le-linux-gnu. Reviewed-by: Sachin Monga <smonga@linux.ibm.com> |
||
|---|---|---|
| .. | ||
| dbl-64 | ||
| float128 | ||
| flt-32 | ||
| ldbl-64-128 | ||
| ldbl-96 | ||
| ldbl-128 | ||
| ldbl-128ibm | ||
| ldbl-128ibm-compat | ||
| ldbl-opt | ||
| soft-fp | ||
| Makefile | ||
| ieee754.h | ||
| k_standard.c | ||
| k_standardf.c | ||
| k_standardl.c | ||
| libm-alias-finite.h | ||
| s_lib_version.c | ||
| s_matherr.c | ||
| s_signgam.c | ||