From b35fd448cea32da671ecd3ecaad3cc637598c6e0 Mon Sep 17 00:00:00 2001
From: Duncan Sands <baldrick@free.fr>
Date: Thu, 21 Oct 2010 08:57:29 +0000
Subject: Fix the cleanup process of exception information in JIT.  Now JIT
 deregisters registered by it FDE structures allowing consecutive JIT runs to
 succeed.  Patch by Yuri.  Fixes PR8285.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117004 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/ExecutionEngine/ExecutionEngine.cpp | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

(limited to 'lib/ExecutionEngine/ExecutionEngine.cpp')

diff --git a/lib/ExecutionEngine/ExecutionEngine.cpp b/lib/ExecutionEngine/ExecutionEngine.cpp
index be7f1f56a9..77082c4d04 100644
--- a/lib/ExecutionEngine/ExecutionEngine.cpp
+++ b/lib/ExecutionEngine/ExecutionEngine.cpp
@@ -47,12 +47,12 @@ ExecutionEngine *(*ExecutionEngine::JITCtor)(
   const SmallVectorImpl<std::string>& MAttrs) = 0;
 ExecutionEngine *(*ExecutionEngine::InterpCtor)(Module *M,
                                                 std::string *ErrorStr) = 0;
-ExecutionEngine::EERegisterFn ExecutionEngine::ExceptionTableRegister = 0;
-
 
 ExecutionEngine::ExecutionEngine(Module *M)
   : EEState(*this),
-    LazyFunctionCreator(0) {
+    LazyFunctionCreator(0),
+    ExceptionTableRegister(0), 
+    ExceptionTableDeregister(0) {
   CompilingLazily         = false;
   GVCompilationDisabled   = false;
   SymbolSearchingDisabled = false;
@@ -66,6 +66,16 @@ ExecutionEngine::~ExecutionEngine() {
     delete Modules[i];
 }
 
+void ExecutionEngine::DeregisterAllTables() {
+  if (ExceptionTableDeregister) {
+    std::vector<void*>::iterator it = AllExceptionTables.begin();
+    std::vector<void*>::iterator ite = AllExceptionTables.end();
+    for (; it != ite; ++it)
+      ExceptionTableDeregister(*it);
+    AllExceptionTables.clear();
+  }
+}
+
 namespace {
 // This class automatically deletes the memory block when the GlobalVariable is
 // destroyed.
-- 
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