For PR797:

Final commit for this bug. This removes the last EH holdouts in LLVM
and turns off exception support by using the -fno-exceptions option. This
leads to the following reduction in library and executable sizes:
                DEBUG BUILD                RELEASE BUILD
         before     after   delta     before   after    delta
lib    162,328K  157,616K   4,712    17,864K  16,416K  1,448K
bin    571,444K  557,156K  14,288    63,296K   56,996K 6,300K

Debug   Improvement: 19,000K (2.59%)
Release Improvement:  7,748K (9.55%)

llvm-svn: 29882

1 files changed, 8 insertions, 19 deletions

diff --git a/llvm/lib/Bytecode/Reader/Reader.h b/llvm/lib/Bytecode/Reader/Reader.h
index 37dd1d73ff8..711dc89f4c2 100644
--- a/llvm/lib/Bytecode/Reader/Reader.h
+++ b/llvm/lib/Bytecode/Reader/Reader.h
@@ -147,26 +147,21 @@ public:
   );
 
   /// @brief Parse all function bodies
-  void ParseAllFunctionBodies();
+  bool ParseAllFunctionBodies(std::string* ErrMsg);
 
   /// @brief Parse the next function of specific type
-  void ParseFunction(Function* Func) ;
+  bool ParseFunction(Function* Func, std::string* ErrMsg) ;
 
   /// This method is abstract in the parent ModuleProvider class. Its
   /// implementation is identical to the ParseFunction method.
   /// @see ParseFunction
   /// @brief Make a specific function materialize.
-  virtual bool materializeFunction(Function *F, std::string *ErrInfo = 0) {
+  virtual bool materializeFunction(Function *F, std::string *ErrMsg = 0) {
     LazyFunctionMap::iterator Fi = LazyFunctionLoadMap.find(F);
-    if (Fi == LazyFunctionLoadMap.end()) return false;
-    try {
-      ParseFunction(F);
-    } catch (std::string &ErrStr) {
-      if (ErrInfo) *ErrInfo = ErrStr;
+    if (Fi == LazyFunctionLoadMap.end()) 
+      return false;
+    if (ParseFunction(F,ErrMsg))
       return true;
-    } catch (...) {
-      return true;
-    }
     return false;
   }
 
@@ -174,15 +169,9 @@ public:
   /// implementation is identical to ParseAllFunctionBodies.
   /// @see ParseAllFunctionBodies
   /// @brief Make the whole module materialize
-  virtual Module* materializeModule(std::string *ErrInfo = 0) {
-    try {
-      ParseAllFunctionBodies();
-    } catch (std::string &ErrStr) {
-      if (ErrInfo) *ErrInfo = ErrStr;
+  virtual Module* materializeModule(std::string *ErrMsg = 0) {
+    if (ParseAllFunctionBodies(ErrMsg))
       return 0;
-    } catch (...) {
-      return 0;
-    }
     return TheModule;
   }