[llvm] [InstCombine] Handle more even/odd math functions (PR #81324)

[Yingwei Zheng via llvm-commits]

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@@ -1837,6 +1837,21 @@ TLI_DEFINE_ENUM_INTERNAL(pow)
 TLI_DEFINE_STRING_INTERNAL("pow")
 TLI_DEFINE_SIG_INTERNAL(Dbl, Dbl, Dbl)
 
+/// double erf(double x);
+TLI_DEFINE_ENUM_INTERNAL(erf)
+TLI_DEFINE_STRING_INTERNAL("erf")
+TLI_DEFINE_SIG_INTERNAL(Dbl, Dbl)
+
+/// float erf(float x);
+TLI_DEFINE_ENUM_INTERNAL(erff)
+TLI_DEFINE_STRING_INTERNAL("erff")
+TLI_DEFINE_SIG_INTERNAL(Flt, Flt)
+
+/// long double cbrtl(long double x);
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dtcxzyw wrote:

```suggestion
/// long double erfl(long double x);
```

https://github.com/llvm/llvm-project/pull/81324