//===- Interpreter.cpp - Top-Level LLVM Interpreter Implementation --------===//
-//
+//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
//===----------------------------------------------------------------------===//
//
// This file implements the top-level functionality for the LLVM interpreter.
//===----------------------------------------------------------------------===//
#include "Interpreter.h"
-#include "llvm/Module.h"
+#include "llvm/CodeGen/IntrinsicLowering.h"
#include "llvm/DerivedTypes.h"
-#include "llvm/Function.h"
+#include "llvm/Module.h"
+#include <cstring>
+using namespace llvm;
+
+namespace {
+
+static struct RegisterInterp {
+ RegisterInterp() { Interpreter::Register(); }
+} InterpRegistrator;
+
+}
+
+extern "C" void LLVMLinkInInterpreter() { }
/// create - Create a new interpreter object. This can never fail.
///
-ExecutionEngine *Interpreter::create(Module *M, bool TraceMode){
- bool isLittleEndian = false;
- switch (M->getEndianness()) {
- case Module::LittleEndian: isLittleEndian = true; break;
- case Module::BigEndian: isLittleEndian = false; break;
- case Module::AnyPointerSize:
- int Test = 0;
- *(char*)&Test = 1; // Return true if the host is little endian
- isLittleEndian = (Test == 1);
- break;
- }
+ExecutionEngine *Interpreter::create(Module *M, std::string* ErrStr) {
+ // Tell this Module to materialize everything and release the GVMaterializer.
+ if (M->MaterializeAllPermanently(ErrStr))
+ // We got an error, just return 0
+ return 0;
- bool isLongPointer = false;
- switch (M->getPointerSize()) {
- case Module::Pointer32: isLongPointer = false; break;
- case Module::Pointer64: isLongPointer = true; break;
- case Module::AnyPointerSize:
- isLongPointer = (sizeof(void*) == 8); // Follow host
- break;
- }
-
- return new Interpreter(M, isLittleEndian, isLongPointer, TraceMode);
+ return new Interpreter(M);
}
//===----------------------------------------------------------------------===//
// Interpreter ctor - Initialize stuff
//
-Interpreter::Interpreter(Module *M, bool isLittleEndian, bool isLongPointer,
- bool TraceMode)
- : ExecutionEngine(M), ExitCode(0), Trace(TraceMode),
- CurFrame(-1), TD("lli", isLittleEndian, isLongPointer ? 8 : 4,
- isLongPointer ? 8 : 4, isLongPointer ? 8 : 4) {
-
- setTargetData(TD);
+Interpreter::Interpreter(Module *M)
+ : ExecutionEngine(M), TD(M) {
+
+ memset(&ExitValue.Untyped, 0, sizeof(ExitValue.Untyped));
+ setTargetData(&TD);
// Initialize the "backend"
initializeExecutionEngine();
initializeExternalFunctions();
- CW.setModule(M); // Update Writer
emitGlobals();
+
+ IL = new IntrinsicLowering(TD);
+}
+
+Interpreter::~Interpreter() {
+ delete IL;
}
void Interpreter::runAtExitHandlers () {
/// run - Start execution with the specified function and arguments.
///
-GenericValue Interpreter::run(Function *F,
- const std::vector<GenericValue> &ArgValues) {
+GenericValue
+Interpreter::runFunction(Function *F,
+ const std::vector<GenericValue> &ArgValues) {
assert (F && "Function *F was null at entry to run()");
// Try extra hard not to pass extra args to a function that isn't
// take into account gratuitous differences in declared types,
// though.
std::vector<GenericValue> ActualArgs;
- const unsigned ArgCount = F->getFunctionType()->getParamTypes().size();
- for (unsigned i = 0; i < ArgCount; ++i) {
- ActualArgs.push_back (ArgValues[i]);
- }
-
+ const unsigned ArgCount = F->getFunctionType()->getNumParams();
+ for (unsigned i = 0; i < ArgCount; ++i)
+ ActualArgs.push_back(ArgValues[i]);
+
// Set up the function call.
callFunction(F, ActualArgs);
- // Reset the current frame location to the top of stack
- CurFrame = ECStack.size()-1;
-
// Start executing the function.
run();
-
- // Run any atexit handlers now!
- runAtExitHandlers();
- GenericValue rv;
- rv.IntVal = ExitCode;
- return rv;
+ return ExitValue;
}