Use use_empty() instead of getNumUses(), avoiding a use list traversal.

[oota-llvm.git] / lib / ExecutionEngine / JIT / JITEmitter.cpp

diff --git a/lib/ExecutionEngine/JIT/JITEmitter.cpp b/lib/ExecutionEngine/JIT/JITEmitter.cpp
index f0857c100efcdec81afffee7d01a2f5fc1946053..c55bc75560cb9abc70345c97d1fa05474e812d20 100644 (file)
--- a/lib/ExecutionEngine/JIT/JITEmitter.cpp
+++ b/lib/ExecutionEngine/JIT/JITEmitter.cpp
@@ -145,20 +145,6 @@ namespace {
 
 JITResolver *JITResolver::TheJITResolver = 0;
 
-#if (defined(__POWERPC__) || defined (__ppc__) || defined(_POWER)) && \
-    defined(__APPLE__)
-extern "C" void sys_icache_invalidate(const void *Addr, size_t len);
-#endif
-
-/// synchronizeICache - On some targets, the JIT emitted code must be
-/// explicitly refetched to ensure correct execution.
-static void synchronizeICache(const void *Addr, size_t len) {
-#if (defined(__POWERPC__) || defined (__ppc__) || defined(_POWER)) && \
-    defined(__APPLE__)
-  sys_icache_invalidate(Addr, len);
-#endif
-}
-
 /// getFunctionStub - This returns a pointer to a function stub, creating
 /// one on demand as needed.
 void *JITResolver::getFunctionStub(Function *F) {
@@ -308,7 +294,7 @@ void *JITResolver::JITCompilerFn(void *Stub) {
 // have useful answers.  However, we don't go crazy with atomic operations, we
 // just do a "reasonable effort".
 #ifdef __APPLE__ 
-#define ENABLE_JIT_SYMBOL_TABLE 1
+#define ENABLE_JIT_SYMBOL_TABLE 0
 #endif
 
 /// JitSymbolEntry - Each function that is JIT compiled results in one of these
@@ -421,7 +407,7 @@ static void RemoveFunctionFromSymbolTable(void *FnStart) {
   --SymTabPtr->NumSymbols;
 
   // Finally, if we deleted the final symbol, deallocate the table itself.
-  if (SymTabPtr->NumSymbols == 0) 
+  if (SymTabPtr->NumSymbols != 0) 
     return;
   
   *SymTabPtrPtr = 0;
@@ -756,7 +742,7 @@ bool JITEmitter::finishFunction(MachineFunction &F) {
   }
 
   // Invalidate the icache if necessary.
-  synchronizeICache(FnStart, FnEnd-FnStart);
+  TheJIT->getJITInfo().InvalidateInstructionCache(FnStart, FnEnd-FnStart);
   
   // Add it to the JIT symbol table if the host wants it.
   AddFunctionToSymbolTable(F.getFunction()->getNameStart(),