Once we've emitted a fatal diagnostic, keep counting errors but with a

separate count of "suppressed" errors. This way, semantic analysis
bits that depend on the error count to determine whether problems
occured (e.g., some template argument deduction failures, jump-scope
checking) will not get confused.

The actual problem here is that a missing #include (which is a fatal
error) could cause the jump-scope checker to run on invalid code,
which it is not prepared to do. Trivial fix for both
<rdar://problem/7775941> and <rdar://problem/7775709>.

llvm-svn: 101297

1 files changed, 2 insertions, 1 deletions

diff --git a/clang/lib/Frontend/CompilerInstance.cpp b/clang/lib/Frontend/CompilerInstance.cpp
index 685e6c281cc..5ed9c409a3d 100644
--- a/clang/lib/Frontend/CompilerInstance.cpp
+++ b/clang/lib/Frontend/CompilerInstance.cpp
@@ -515,7 +515,8 @@ bool CompilerInstance::ExecuteAction(FrontendAction &Act) {
 
   if (getDiagnosticOpts().ShowCarets) {
     unsigned NumWarnings = getDiagnostics().getNumWarnings();
-    unsigned NumErrors = getDiagnostics().getNumErrors();
+    unsigned NumErrors = getDiagnostics().getNumErrors() - 
+                               getDiagnostics().getNumErrorsSuppressed();
     
     if (NumWarnings)
       OS << NumWarnings << " warning" << (NumWarnings == 1 ? "" : "s");