[llvm] [InferAttrs] Mark floating-point libcalls as errno-writing (PR #124742)

[Nikita Popov via llvm-commits]

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@@ -1145,14 +1166,9 @@ bool llvm::inferNonMandatoryLibFuncAttrs(Function &F,
   case LibFunc_ldexp:
   case LibFunc_ldexpf:
   case LibFunc_ldexpl:
+    Changed |= setOnlyAccessesErrnoMemory(F);
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nikic wrote:

I would also rename this one to setOnlyWritesErrnoMemory(F) for clarity.

https://github.com/llvm/llvm-project/pull/124742