[PATCH] D39304: [IR] redefine 'reassoc' fast-math-flag and add 'trans' fast-math-flag

[Hal Finkel via Phabricator via llvm-commits]

hfinkel added inline comments.


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Comment at: docs/LangRef.rst:10866
 This function returns the same values as the libm ``fma`` functions
-would, and does not set errno.
+would, and does not set errno. When specified with the fast-math-flag 'afn', 
+the result may not match the system's libm implementation.
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I don't expect that afn would affect fma. I recommend removing the statement here. It might be true that fma is computed differently under -ffast-math because of denormal handling, but that applies to everything. The same is true of the conversion functions below (floor, rint, etc.). maxnum/minnum too.


https://reviews.llvm.org/D39304