mirror of git://sourceware.org/git/glibc.git
f165e244e4
Refactor the generic implementation to use math_config.h definitions, and add an alternative one if the ABI supports truncf instructions (gated through math-use-builtins-trunc.h). The generic implementation generates similar code on x86_64, while the optimization one for aarch64 (where truncf is supported as a builtin by through frintz), the improvements are: reciprocal-throughput master patch difference workload-0_1 3.0595 3.0698 -0.34% workload-1_maxint 5.1747 3.0542 40.98% workload-maxint_maxfloat 3.4391 3.0349 11.75% workload-integral 3.2732 3.0293 7.45% latency master patch difference workload-0_1 3.5267 4.7107 -33.57% workload-1_maxint 6.9074 4.7282 31.55% workload-maxint_maxfloat 3.7210 4.7506 -27.67% workload-integral 3.8634 4.8137 -24.60% Checked on aarch64-linux-gnu and x86_64-linux-gnu. Reviewed-by: Wilco Dijkstra <Wilco.Dijkstra@arm.com> |
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| .. | ||
| 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 | ||