mirror of git://sourceware.org/git/glibc.git
79bfbc93de
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 1.1351 0.9067 20.12% workload-1_maxint 1.4230 0.9040 36.47% workload-maxint_maxfloat 1.5038 0.9076 39.65% workload-integral 1.1280 0.9111 19.23% latency master patch difference workload-0_1 1.1440 2.7117 -137.03% workload-1_maxint 4.0556 2.7070 33.25% workload-maxint_maxfloat 3.2122 2.7164 15.43% workload-integral 3.2381 2.7281 15.75% Checked on powerpc64le-linux-gnu. Reviewed-by: Sachin Monga <smonga@linux.ibm.com> |
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| .. | ||
| 405 | ||
| 440 | ||
| 464 | ||
| 476 | ||
| 970 | ||
| a2 | ||
| bits | ||
| cell | ||
| fpu | ||
| power4 | ||
| power5 | ||
| power5+ | ||
| power6 | ||
| power6x | ||
| power7 | ||
| power8 | ||
| power9 | ||
| power10 | ||
| power11 | ||
| Implies | ||
| Implies-after | ||
| Makefile | ||
| Versions | ||
| __longjmp-common.S | ||
| __longjmp.S | ||
| add_n.S | ||
| addmul_1.S | ||
| atomic-machine.h | ||
| bsd-_setjmp.S | ||
| bsd-setjmp.S | ||
| compat-ppc-mcount.S | ||
| configure | ||
| configure.ac | ||
| crti.S | ||
| crtn.S | ||
| dl-dtprocnum.h | ||
| dl-irel.h | ||
| dl-machine.c | ||
| dl-machine.h | ||
| dl-start.S | ||
| dl-trampoline.S | ||
| gprrest0.S | ||
| gprrest1.S | ||
| gprsave0.S | ||
| gprsave1.S | ||
| libgcc-compat.S | ||
| lshift.S | ||
| mcount.c | ||
| memset.S | ||
| mul_1.S | ||
| ppc-mcount.S | ||
| rshift.S | ||
| rtld-memset.c | ||
| setjmp-common.S | ||
| setjmp.S | ||
| stackguard-macros.h | ||
| stackinfo.h | ||
| start.S | ||
| stpcpy.S | ||
| strchr.S | ||
| strcmp.S | ||
| strcpy.S | ||
| strlen.S | ||
| sub_n.S | ||
| submul_1.S | ||
| symbol-hacks.h | ||
| sysdep.h | ||
| tst-audit.h | ||
| unwind-arch.h | ||