[PATCH] D57892: [analyzer] Fix macro printer crash when macro comes from another translation unit

[Kristóf Umann via Phabricator via cfe-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL354806: [analyzer] Fix infinite recursion in printing macros (authored by Szelethus, committed by ).
Herald added subscribers: llvm-commits, Charusso.
Herald added a project: LLVM.

Changed prior to commit:
  https://reviews.llvm.org/D57892?vs=185758&id=188219#toc

Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D57892/new/

https://reviews.llvm.org/D57892

Files:
  cfe/trunk/lib/StaticAnalyzer/Core/PlistDiagnostics.cpp


Index: cfe/trunk/lib/StaticAnalyzer/Core/PlistDiagnostics.cpp
===================================================================
--- cfe/trunk/lib/StaticAnalyzer/Core/PlistDiagnostics.cpp
+++ cfe/trunk/lib/StaticAnalyzer/Core/PlistDiagnostics.cpp
@@ -842,6 +842,9 @@
 
   MacroNameAndArgs Info = getMacroNameAndArgs(SM.getExpansionLoc(MacroLoc), PP);
 
+  if (!Info.MI)
+    return Info.Name;
+
   // Manually expand its arguments from the previous macro.
   Info.Args.expandFromPrevMacro(PrevArgs);
 
@@ -936,7 +939,14 @@
   assert(II && "Failed to acquire the IndetifierInfo for the macro!");
 
   const MacroInfo *MI = getMacroInfoForLocation(PP, SM, II, ExpanLoc);
-  assert(MI && "The macro must've been defined at it's expansion location!");
+  // assert(MI && "The macro must've been defined at it's expansion location!");
+  //
+  // We should always be able to obtain the MacroInfo in a given TU, but if
+  // we're running the analyzer with CTU, the Preprocessor won't contain the
+  // directive history (or anything for that matter) from another TU.
+  // TODO: assert when we're not running with CTU.
+  if (!MI)
+    return { MacroName, MI, {} };
 
   // Acquire the macro's arguments.
   //


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