[PATCH] D31164: [IR] Add AllowContract to FastMathFlags

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

Needs assembler and bitcode compatibility tests



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Comment at: docs/LangRef.rst:2197-2200
+``contract``
+   Allow floating-point contraction (e.g. fusing a multiply followed by an
+   addition into a fused multiply-and-add).
+
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Should we also have an unsafe algebra that preserves signed zeros/nans etc?


https://reviews.llvm.org/D31164