[LLVMdev] Static linking of execution engine

[Mario Schwalbe]

Hi,

Am 21.05.13 21:57, schrieb Kaylor, Andrew:
> Yeah, this is a problem with the static constructor getting optimized out.  Including "JIT.h" is supposed to fix that.
> Is it possible that the file where you are including "JIT.h" doesn't have any required code in it?

I'm including "JIT.h" directly in the main module, which also uses the
engine. See the small test case attached. Even if I bypass the dummy object
and call LLVMLinkInJIT() directly, it still gets optimized out...

ciao,
Mario

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/*
 * vim: set tabstop=4 shiftwidth=4 expandtab:
 */
#define DEBUG_TYPE "ExecutionEngineTest"

#include <llvm/ExecutionEngine/Interpreter.h>
#include <llvm/ExecutionEngine/JIT.h>
#include <llvm/Support/TargetSelect.h>
#include <llvm/LLVMContext.h>
#include <llvm/Module.h>

#include <cassert>

using namespace llvm;

int main(void)
{
    InitializeNativeTarget();
#if 1
    LLVMLinkInJIT();
#endif

    EngineBuilder engineBuilder(new Module("foo", getGlobalContext()));
#if 0
    engineBuilder.setEngineKind(EngineKind::Interpreter);
#else
    engineBuilder.setEngineKind(EngineKind::JIT);
#endif

    const OwningPtr<ExecutionEngine> executionEngine(engineBuilder.create());
    assert(executionEngine && "Failed to create execution engine");

    return 0;
}