[PATCH] D15120: Add support for __float128 type to be used by targets that support it

[Hubert Tong via cfe-commits]

hubert.reinterpretcast added inline comments.

================
Comment at: lib/Sema/SemaOverload.cpp:1658
@@ -1657,1 +1657,3 @@
   } else if (FromType->isRealFloatingType() && ToType->isRealFloatingType()) {
+    // FIXME: disable conversions between long double and __float128 if
+    // their representation is different until there is back end support
----------------
The update to check the case where the representation of `long double` is the same as that of `double` is missing.

================
Comment at: lib/Sema/SemaOverload.cpp:1966-1967
@@ -1955,4 +1965,4 @@
       // C99 6.3.1.5p1:
       //   When a float is promoted to double or long double, or a
       //   double is promoted to long double [...].
       if (!getLangOpts().CPlusPlus &&
----------------
@rsmith; this is the discussion on floating-point "promotions" in "C" that I was asking you about.


Repository:
  rL LLVM

http://reviews.llvm.org/D15120