[flang-commits] [clang] [flang] [Flang][Driver] Override -ffast-math floating point contraction with -ffp-contract= (PR #213574)

[Tom Eccles via flang-commits]

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tblah wrote:

nit: I think this also needs to set `LastFpContractOverrideOption = "";`, otherwise `-ffast-math -fno-fast-math -ffp-contract=off` will warn.

https://github.com/llvm/llvm-project/pull/213574