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For PR540:

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This patch completes the changes for making lli thread-safe. Here's the list
of changes:
* The Support/ThreadSupport* files were removed and replaced with the
  MutexGuard.h file since all ThreadSupport* declared was a Mutex Guard.
  The implementation of MutexGuard.h is now based on sys::Mutex which hides
  its implementation and makes it unnecessary to have the -NoSupport.h and
  -PThreads.h versions of ThreadSupport.

* All places in ExecutionEngine that previously referred to "Mutex" now
  refer to sys::Mutex

* All places in ExecutionEngine that previously referred to "MutexLocker"
  now refer to MutexGuard (this is frivolous but I believe the technically
  correct name for such a class is "Guard" not a "Locker").

These changes passed all of llvm-test. All we need now are some test cases
that actually use multiple threads.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22404 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer
2005-07-12 15:51:55 +00:00
parent b2164e5cb5
commit ee448630bd
11 changed files with 155 additions and 221 deletions
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17
lib/ExecutionEngine/ExecutionEngine.cpp
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@@ -50,16 +50,18 @@ ExecutionEngine::~ExecutionEngine() {
/// at the specified address.
///
const GlobalValue *ExecutionEngine::getGlobalValueAtAddress(void *Addr) {
MutexGuard locked(lock);
// If we haven't computed the reverse mapping yet, do so first.
if (GlobalAddressReverseMap.empty()) {
if (state.getGlobalAddressReverseMap(locked).empty()) {
for (std::map<const GlobalValue*, void *>::iterator I =
GlobalAddressMap.begin(), E = GlobalAddressMap.end(); I != E; ++I)
GlobalAddressReverseMap.insert(std::make_pair(I->second, I->first));
state.getGlobalAddressMap(locked).begin(), E = state.getGlobalAddressMap(locked).end(); I != E; ++I)
state.getGlobalAddressReverseMap(locked).insert(std::make_pair(I->second, I->first));
}
std::map<void *, const GlobalValue*>::iterator I =
GlobalAddressReverseMap.find(Addr);
return I != GlobalAddressReverseMap.end() ? I->second : 0;
state.getGlobalAddressReverseMap(locked).find(Addr);
return I != state.getGlobalAddressReverseMap(locked).end() ? I->second : 0;
}
// CreateArgv - Turn a vector of strings into a nice argv style array of
@@ -168,8 +170,9 @@ void *ExecutionEngine::getPointerToGlobal(const GlobalValue *GV) {
if (Function *F = const_cast<Function*>(dyn_cast<Function>(GV)))
return getPointerToFunction(F);
assert(GlobalAddressMap[GV] && "Global hasn't had an address allocated yet?");
return GlobalAddressMap[GV];
MutexGuard locked(lock);
assert(state.getGlobalAddressMap(locked)[GV] && "Global hasn't had an address allocated yet?");
return state.getGlobalAddressMap(locked)[GV];
}
/// FIXME: document