================
@@ -1344,6 +1344,15 @@ static void InitializePredefinedMacros(const TargetInfo
&TI,
if (TI.getTriple().isOSBinFormatELF())
Builder.defineMacro("__ELF__");
+ // Target OS macro definitions.
+ if (PPOpts.DefineTargetOSMacros) {
+ const llvm::Triple &Triple = TI.getTriple();
+#define TARGET_OS(Name, Predicate)
\
+ Builder.defineMacro(#Name, Predicate ? "1" : "0");
----------------
jroelofs wrote:
`Predicate` should be in parens to make the precedence explicit in the face of
preprocessor expansion.
https://github.com/llvm/llvm-project/pull/74676
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