[llvm-dev] Discuss about the LLVM SW mitigation to Jump Conditional Code Erratum
Fāng-ruì Sòng via llvm-dev
llvm-dev at lists.llvm.org
Fri Dec 6 00:21:23 PST 2019
On Wed, Dec 4, 2019 at 8:41 AM Craig Topper via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> Annita, do you have measurements with inserting NOPs instead of redundant segment prefixes. The code review was asking for performance data to show that prefixes are better than NOPs.
Also -ffunction-sections. With more sections, it may be easier to
exhibit non-convergence problems. The compile time may not be slowed
much because functions will be smaller. The code size may increase if
more sections need over-alignment.
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