[PATCH] D28820: Warn when calling a non interrupt function from an interrupt on ARM
Jonathan Roelofs via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Wed Jan 18 13:11:05 PST 2017
jroelofs added a comment.
In https://reviews.llvm.org/D28820#649770, @efriedma wrote:
> > There would be a big performance penalty for ISRs with callees that don't use VFP regs.
> Sacrificing correctness for the sake of performance seems like a bad idea...
I don't quite see it that way, but I understand where you're coming from.
> especially given that the optimizer can insert calls to memcpy where they didn't originally exist in the source.
That, however, is the nail in the coffin of my argument :)
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