Developer Guide and Reference

Contents

qopt-prefetch-issue-excl-hint, Qopt-prefetch-issue-excl-hint

Supports the prefetchW instruction in Intel® microarchitecture code name Broadwell and later.

Syntax

Linux:
-qopt-prefetch-issue-excl-hint
macOS:
None
Windows:
/Qopt-prefetch-issue-excl-hint
Arguments
None
Default
OFF
The compiler does not support the PREFETCHW instruction for this microarchitecture.
Description
This option supports the PREFETCHW instruction in Intel® microarchitecture code name Broadwell and later.
When you specify this option, you must also specify option
[q or Q]opt-prefetch
.
The prefetch instruction is merely a hint and does not affect program behavior. If executed, this instruction moves data closer to the processor and invalidates any other cached copy in anticipation of the line being written to in the future.
Alternate Options
None