[PATCH] D24011: [ConstantFold] Add a flag for ppc_fp128 constant folding, since APFloat doesn't support double-double semantic

Hal Finkel via llvm-commits llvm-commits at lists.llvm.org
Mon Aug 29 16:23:42 PDT 2016

hfinkel added a comment.

In the past, we've been comfortable leaving this as an open known issue, especially given that the semantics of PPC long double are not IEEE anyway - the real fix involves creating an APFloat-based double-double implementation which can be used to evaluate constants. How important is it that we make this kind of change now?


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