Speed up compilation by avoiding generating exceptional edges from
CallExprs as those edges help cause a n^2 explosion in the number of
destructor calls. Other consumers, such as static analysis, that
would like to have more a more complete CFG can select the inclusion
of those edges as CFG build time.
This also fixes up the two compilation users of CFGs to be tolerant of
having or not having those edges. All catch code is assumed be to
live if we didn't generate the exceptional edges for CallExprs.
llvm-svn: 94074
diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index 1e1df06..b6b3b5b 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -4102,7 +4102,9 @@
Decl *dcl = D.getAs<Decl>();
Stmt *Body = BodyArg.takeAs<Stmt>();
- AnalysisContext AC(dcl);
+ // Don't generate EH edges for CallExprs as we'd like to avoid the n^2
+ // explosion for destrutors that can result and the compile time hit.
+ AnalysisContext AC(dcl, false);
FunctionDecl *FD = 0;
FunctionTemplateDecl *FunTmpl = dyn_cast_or_null<FunctionTemplateDecl>(dcl);
if (FunTmpl)