Minor improvement of KMP_YIELD_NOW() macro.

Description

Minor improvement of KMP_YIELD_NOW() macro.

This change slightly improves performance of KMP_YIELD_NOW() macro, by using
_rdtsc() intrinsic function if possible.

Patch by Hansang Bae

Differential Revision: https://reviews.llvm.org/D31008

Details

Committed
jlpeytonMon, Mar 20, 3:11 PM
Differential Revision
D31008: Minor improvement of KMP_YIELD_NOW() macro.
Parents
rL298313: Fix incorrect initial value of __kmp_affinity_type.
Branches
Unknown
Tags
Unknown