[clang] [clang][bytecode] Disable tail calls on MSVC (PR #188033)

via cfe-commits cfe-commits at lists.llvm.org
Mon Mar 23 06:30:43 PDT 2026


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@@ -37,7 +37,9 @@ using namespace clang::interp;
 #endif
 
 // On MSVC, musttail does not guarantee tail calls in debug mode.
-#if (defined(_MSC_VER) && defined(_DEBUG)) || !defined(MUSTTAIL)
+// We disable it on MSVC generally since it doesn't seem to be able
+// to handle the way we use tailcalls.
+#if defined(_MSC_VER) || !defined(MUSTTAIL)
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Andarwinux wrote:

But clang-cl also defines _MSC_VER.

https://github.com/llvm/llvm-project/pull/188033


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