[PATCH] D151741: [Lex] Only warn on defining or undefining language-defined builtins

Wed May 31 09:48:50 PDT 2023

nickdesaulniers added inline comments.

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Comment at: clang/test/Preprocessor/macro-reserved.c:22
+#undef __UINTPTR_TYPE__
+#undef __i386__
+#undef __UINT64_TYPE__
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This line wont have coverage unless the RUN line sets `-m32` (even then, an explicit triple would be better for non-x86 hosts running the test).

Maybe add this `undef` to either init-x86.c or predefined-arch-macros.c?

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D151741/new/

https://reviews.llvm.org/D151741