[PATCH] D125727: [clang] Avoid suggesting typoed directives in `.S` files

[Ken Matsui via Phabricator via cfe-commits]

ken-matsui updated this revision to Diff 429877.
ken-matsui added a comment.

Remove `- < %s`


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D125727/new/

https://reviews.llvm.org/D125727

Files:
  clang/lib/Lex/PPDirectives.cpp
  clang/test/Preprocessor/suggest-typoed-directive.S


Index: clang/test/Preprocessor/suggest-typoed-directive.S
===================================================================
--- /dev/null
+++ clang/test/Preprocessor/suggest-typoed-directive.S
@@ -0,0 +1,29 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+// expected-no-diagnostics
+
+#ifdef UNDEFINED
+#id
+#ifd
+#ifde
+#elf
+#elsif
+#elseif
+#elfidef
+#elfindef
+#elfinndef
+#els
+#endi
+#endif
+
+#ifdef UNDEFINED
+# in in order to perform
+#endif
+
+#ifdef UNDEFINED
+#i
+#endif
+
+#if special_compiler
+#special_compiler_directive
+#endif
Index: clang/lib/Lex/PPDirectives.cpp
===================================================================
--- clang/lib/Lex/PPDirectives.cpp
+++ clang/lib/Lex/PPDirectives.cpp
@@ -481,6 +481,10 @@
 void Preprocessor::SuggestTypoedDirective(const Token &Tok,
                                           StringRef Directive,
                                           const SourceLocation &EndLoc) const {
+  // If this is a `.S` file, treat unknown # directives as non-preprocessor
+  // directives.
+  if (getLangOpts().AsmPreprocessor) return;
+
   std::vector<StringRef> Candidates = {
       "if", "ifdef", "ifndef", "elif", "else", "endif"
   };


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