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

[Pranav Kant via cfe-commits]

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

None

>From 8c07729b195fa78133258b03a31e8668d70a922d Mon Sep 17 00:00:00 2001
From: Pranav Kant <prka at google.com>
Date: Fri, 22 Sep 2023 20:50:32 +0000
Subject: [PATCH] [clang] Predefined macros for float128 support

---
 clang/lib/Frontend/InitPreprocessor.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/clang/lib/Frontend/InitPreprocessor.cpp b/clang/lib/Frontend/InitPreprocessor.cpp
index e5db8a654e6707d..9e4d4d398a21da5 100644
--- a/clang/lib/Frontend/InitPreprocessor.cpp
+++ b/clang/lib/Frontend/InitPreprocessor.cpp
@@ -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");
 
   // Define a __POINTER_WIDTH__ macro for stdint.h.
   Builder.defineMacro("__POINTER_WIDTH__",