[libc-commits] [libc] [libc] Enables MPFR for float80 and adds tests for it (PR #223800)

[via libc-commits]

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@@ -65,6 +65,12 @@ template <> struct ExtraPrecision<float128> {
 };
 #endif // LIBC_TYPES_FLOAT128_IS_NOT_LONG_DOUBLE
 
+#ifdef LIBC_TYPES_LONG_DOUBLE_IS_X86_FLOAT80
+template <> struct ExtraPrecision<float80> {
+  static constexpr unsigned int VALUE = 256;
+};
+#endif
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lntue wrote:

add matching comments for consistency.

https://github.com/llvm/llvm-project/pull/223800