[clang] [lld] [llvm] [WebAssembly] WASIP3 and component model threading support (PR #175800)

[Sy Brand via llvm-commits]

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@@ -79,6 +79,19 @@ static bool WantsPthread(const llvm::Triple &Triple, const ArgList &Args) {
   return WantsPthread;
 }
 
+static bool WantsComponentModelThreadContext(const llvm::Triple &Triple, const ArgList &Args) {
+  // If the target is WASIP3, then enable the
+  // component-model-thread-context feature by default, unless explicitly
+  // disabled.
+  return Triple.getOSName() == "wasip3" &&
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TartanLlama wrote:

Yeah that makes sense, I've changed it so that the decision is made exactly once in the Clang driver. This means that tools using `llc` directly would need to pass the feature themselves, and other frontends would need to do the same, which I think is reasonable

https://github.com/llvm/llvm-project/pull/175800