Revert "[clang] Remove #undef alloca workaround (#81534)"

This reverts commit 742a06f.
llvm · Feb 13, 2024 · 9fad04c · 9fad04c
1 parent 2422e96
commit 9fad04c
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/clang/include/clang/Basic/Builtins.h b/clang/include/clang/Basic/Builtins.h
@@ -20,6 +20,10 @@
 #include "llvm/ADT/StringRef.h"
 #include <cstring>
 
+// VC++ defines 'alloca' as an object-like macro, which interferes with our
+// builtins.
+#undef alloca
+
 namespace clang {
 class TargetInfo;
 class IdentifierTable;