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

Melanie Blower via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Oct 31 12:15:59 PDT 2019


mibintc marked an inline comment as done.
mibintc added inline comments.


================
Comment at: clang/include/clang/Driver/Options.td:1152
+def frounding_math : Flag<["-"], "frounding-math">, Group<f_Group>, Flags<[CC1Option]>;
+def fno_rounding_math : Flag<["-"], "fno-rounding-math">, Group<f_Group>, Flags<[CC1Option]>;
 def ftrapping_math : Flag<["-"], "ftrapping-math">, Group<f_Group>, Flags<[CC1Option]>;
----------------
rjmccall wrote:
> It looks like both of these can now be written with `BooleanFFlag`.
BooleanFFlag doesn't work, there's a FIXME message saying that prefixes don't work, currently they are only being used for unimplemented options.
llvm/clang/lib/Driver/ToolChains/Clang.cpp:2301:17: error: ‘OPT_frounding_math’ is not a member of ‘clang::driver::options’
         optID = options::OPT_frounding_math;
                 ^



Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D62731/new/

https://reviews.llvm.org/D62731





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