Revert r228258.

It caused a chromium base unittest that tests throwing and catching SEH
exceptions to fail (http://crbug.com/455488) and I suspect it might also
be the cause of the chromium clang win 64-bit shared release builder timing
out during compiles.  So revert to see if that's true.

llvm-svn: 228262

1 files changed, 9 insertions, 24 deletions

diff --git a/clang/lib/Sema/SemaStmt.cpp b/clang/lib/Sema/SemaStmt.cpp
index 4761c32f78d..d17cf227011 100644
--- a/clang/lib/Sema/SemaStmt.cpp
+++ b/clang/lib/Sema/SemaStmt.cpp
@@ -3303,12 +3303,11 @@ StmtResult Sema::ActOnCXXTryBlock(SourceLocation TryLoc, Stmt *TryBlock,
   if (getCurScope() && getCurScope()->isOpenMPSimdDirectiveScope())
     Diag(TryLoc, diag::err_omp_simd_region_cannot_use_stmt) << "try";
 
-  sema::FunctionScopeInfo *FSI = getCurFunction();
-
   // C++ try is incompatible with SEH __try.
-  if (!getLangOpts().Borland && FSI->FirstSEHTryLoc.isValid()) {
+  if (!getLangOpts().Borland && getCurFunction()->FirstSEHTryLoc.isValid()) {
     Diag(TryLoc, diag::err_mixing_cxx_try_seh_try);
-    Diag(FSI->FirstSEHTryLoc, diag::note_conflicting_try_here) << "'__try'";
+    Diag(getCurFunction()->FirstSEHTryLoc, diag::note_conflicting_try_here)
+        << "'__try'";
   }
 
   const unsigned NumHandlers = Handlers.size();
@@ -3353,7 +3352,7 @@ StmtResult Sema::ActOnCXXTryBlock(SourceLocation TryLoc, Stmt *TryBlock,
     }
   }
 
-  FSI->setHasCXXTry(TryLoc);
+  getCurFunction()->setHasCXXTry(TryLoc);
 
   // FIXME: We should detect handlers that cannot catch anything because an
   // earlier handler catches a superclass. Need to find a method that is not
@@ -3368,29 +3367,15 @@ StmtResult Sema::ActOnSEHTryBlock(bool IsCXXTry, SourceLocation TryLoc,
                                   Stmt *TryBlock, Stmt *Handler) {
   assert(TryBlock && Handler);
 
-  sema::FunctionScopeInfo *FSI = getCurFunction();
-
   // SEH __try is incompatible with C++ try. Borland appears to support this,
   // however.
-  if (!getLangOpts().Borland) {
-    if (FSI->FirstCXXTryLoc.isValid()) {
-      Diag(TryLoc, diag::err_mixing_cxx_try_seh_try);
-      Diag(FSI->FirstCXXTryLoc, diag::note_conflicting_try_here) << "'try'";
-    }
+  if (!getLangOpts().Borland && getCurFunction()->FirstCXXTryLoc.isValid()) {
+    Diag(TryLoc, diag::err_mixing_cxx_try_seh_try);
+    Diag(getCurFunction()->FirstCXXTryLoc, diag::note_conflicting_try_here)
+        << "'try'";
   }
 
-  FSI->setHasSEHTry(TryLoc);
-
-  // Reject __try in Obj-C methods, blocks, and captured decls, since we don't
-  // track if they use SEH.
-  DeclContext *DC = CurContext;
-  while (DC && !DC->isFunctionOrMethod())
-    DC = DC->getParent();
-  FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(DC);
-  if (FD)
-    FD->setUsesSEHTry(true);
-  else
-    Diag(TryLoc, diag::err_seh_try_outside_functions);
+  getCurFunction()->setHasSEHTry(TryLoc);
 
   return SEHTryStmt::Create(Context, IsCXXTry, TryLoc, TryBlock, Handler);
 }