[clang] [clang] Predefined macros for float128 support (PR #67196)

[Alexander Shaposhnikov via cfe-commits]

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@@ -1076,6 +1076,8 @@ static void InitializePredefinedMacros(const TargetInfo &TI,
   DefineFloatMacros(Builder, "FLT", &TI.getFloatFormat(), "F");
   DefineFloatMacros(Builder, "DBL", &TI.getDoubleFormat(), "");
   DefineFloatMacros(Builder, "LDBL", &TI.getLongDoubleFormat(), "L");
+  if (TI.hasFloat128Type())
+    DefineFloatMacros(Builder, "FLT128", &TI.getFloat128Format(), "Q");
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alexander-shaposhnikov wrote:

This needs tests (see e.g. https://reviews.llvm.org/D111382, https://github.com/llvm/llvm-project/blob/main/clang/test/Preprocessor)

https://github.com/llvm/llvm-project/pull/67196