[llvm] [ConstantFold] Fold `erf` and `erff` when the input parameter is a constant value. (PR #113079)
Matt Arsenault via llvm-commits
llvm-commits at lists.llvm.org
Mon Oct 21 17:44:51 PDT 2024
================
@@ -3624,6 +3628,10 @@ bool llvm::isMathLibCallNoop(const CallBase *Call,
case LibFunc_sqrtf:
return Op.isNaN() || Op.isZero() || !Op.isNegative();
+ case LibFunc_erf:
+ case LibFunc_erff:
+ return true;
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arsenm wrote:
Yes, it will probably work on most hosts in practice but it's not structurally correct
https://github.com/llvm/llvm-project/pull/113079
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