[cfe-dev] fp-contract at -O0

Joerg Sonnenberger via cfe-dev cfe-dev at lists.llvm.org
Thu Feb 13 17:14:12 PST 2020

On Fri, Feb 14, 2020 at 12:30:06AM +0000, Kaylor, Andrew via cfe-dev wrote:
> The most surprising problem, to me at least, was that this change caused FMA instructions to be generated at -O0.

Why is that a problem? As long as it doesn't create build performance
regressions, it seems to be semantically valid to do?


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