Minor speedup by avoiding callbacks to functions already generated
llvm-svn: 6052
diff --git a/llvm/lib/ExecutionEngine/JIT/Emitter.cpp b/llvm/lib/ExecutionEngine/JIT/Emitter.cpp
index d6f75c0..69e2453 100644
--- a/llvm/lib/ExecutionEngine/JIT/Emitter.cpp
+++ b/llvm/lib/ExecutionEngine/JIT/Emitter.cpp
@@ -131,11 +131,15 @@
void Emitter::emitGlobalAddress(GlobalValue *V, bool isPCRelative) {
if (isPCRelative) { // must be a call, this is a major hack!
- // FIXME: Try looking up the function to see if it is already compiled!
- TheVM.addFunctionRef(CurByte, cast<Function>(V));
+ // Try looking up the function to see if it is already compiled!
+ if (void *Addr = TheVM.getPointerToGlobalIfAvailable(V)) {
+ emitAddress(Addr, isPCRelative);
+ } else { // Function has not yet been code generated!
+ TheVM.addFunctionRef(CurByte, cast<Function>(V));
- // Delayed resolution...
- emitAddress((void*)VM::CompilationCallback, isPCRelative);
+ // Delayed resolution...
+ emitAddress((void*)VM::CompilationCallback, isPCRelative);
+ }
} else {
emitAddress(TheVM.getPointerToGlobal(V), isPCRelative);
}