Determines whether the compiler issues prefetches for stores with exclusive hint.
IA-64 architecture
Linux: | -opt-prefetch-issue-excl-hint -no-opt-prefetch-issue-excl-hint |
Mac OS X: | None |
Windows: | /Qopt-prefetch-issue-excl-hint /Qopt-prefetch-issue-excl-hint- |
None
-no-opt-prefetch-issue-excl-hint |
The compiler does not issue prefetches for stores with exclusive hint. |
This option determines whether the compiler issues prefetches for stores with exclusive hint. If option -opt-prefetch-issue-excl-hint (Linux) or /Qopt-prefetch-issue-excl-hint (Windows) is specified, the prefetches will be issued if the compiler determines it is beneficial to do so.
When prefetches are issued for stores with exclusive-hint, the cache-line is in "exclusive-mode". This saves on cache-coherence traffic when other processors try to access the same cache-line. This feature can improve performance tuning.
None