[PATCH] D57189: Fix compatibility with the msvc AI compiler option

[Zachary Henkel via Phabricator via cfe-commits]

zahen created this revision.
zahen added reviewers: rnk, zturner.
Herald added a subscriber: cfe-commits.

The unsupported /AI option accepts directory paths in a manner similar to the supported /I option and allows spaces between the flag and the directory.  An example snippet from our production compile that broke on clang-cl.exe because it read the path as an input file.

  /AI %WindowsSdkDir%\References\%WindowsSDKVersion% /I %WindowsSdkDir%\Include\%WindowsSDKVersion%\winrt


Repository:
  rC Clang

https://reviews.llvm.org/D57189

Files:
  include/clang/Driver/CLCompatOptions.td


Index: include/clang/Driver/CLCompatOptions.td
===================================================================
--- include/clang/Driver/CLCompatOptions.td
+++ include/clang/Driver/CLCompatOptions.td
@@ -394,7 +394,7 @@
 
 // Unsupported:
 
-def _SLASH_AI : CLJoined<"AI">;
+def _SLASH_AI : CLJoinedOrSeparate<"AI">;
 def _SLASH_Bt : CLFlag<"Bt">;
 def _SLASH_Bt_plus : CLFlag<"Bt+">;
 def _SLASH_clr : CLJoined<"clr">;


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