[PATCH] D62731: [RFC] Add support for options -frounding-math, -fp-model=, and -fp-exception-behavior=, : Specify floating point behavior

[Melanie Blower via Phabricator via llvm-commits]

mibintc marked 2 inline comments as done.
mibintc added inline comments.


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Comment at: clang/docs/UsersManual.rst:1341
+   has been selected, then the compiler will issue a diagnostic warning
+   that the override has occurred.
+
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rjmccall wrote:
> That's not typical driver behavior; why this choice?
The rationale for the warnings is that the floating point options are sufficiently complicated that it makes sense to warn the uses that one of the later options supplied on the command line is undoing a choice made earlier.  It's not obvious that e.g. the setting for fassociative-math is also controlled by  -fp-model=strict


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  rL LLVM

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  https://reviews.llvm.org/D62731/new/

https://reviews.llvm.org/D62731