[llvm] [clang] Adding support of AMDLIBM vector library (PR #78560)

[Phoebe Wang via cfe-commits]

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@@ -1279,6 +1281,213 @@ void TargetLibraryInfoImpl::addVectorizableFunctionsFromVecLib(
     }
     break;
   }
+  case AMDLIBM: {
+#define FIXED(NL) ElementCount::getFixed(NL)
+    const VecDesc VecFuncs[] = {
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phoebewang wrote:

Move them to `VecFuncs.def`?

https://github.com/llvm/llvm-project/pull/78560