[PATCH] D64746: Add constrained intrinsics for lrint and lround

[Kevin P. Neal via Phabricator via llvm-commits]

kpn added inline comments.


================
Comment at: docs/LangRef.rst:15724
+mode is determined by the runtime floating-point environment.  The rounding
+mode argument is only intended as information to the compiler.
+
----------------
andrew.w.kaylor wrote:
> We should describe what is returned if the value is too large to be represented as a long. The llvm.lrint doesn't do that either, but it should too.
What do we want this to be? My draft copy of C99 says the return value is "unspecified". What does that translate to in LLVM-land? Is this listed in IEEE 754?


Repository:
  rL LLVM

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  https://reviews.llvm.org/D64746/new/

https://reviews.llvm.org/D64746