#define LLVM_TARGET_TARGETJITINFO_H
#include <cassert>
-#include "llvm/Support/DataTypes.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/System/DataTypes.h"
namespace llvm {
class Function;
class GlobalValue;
- class MachineCodeEmitter;
+ class JITCodeEmitter;
class MachineRelocation;
/// TargetJITInfo - Target specific information required by the Just-In-Time
///
virtual void replaceMachineCodeForFunction(void *Old, void *New) = 0;
- /// emitGlobalValueIndirectSym - Use the specified MachineCodeEmitter object
+ /// emitGlobalValueIndirectSym - Use the specified JITCodeEmitter object
/// to emit an indirect symbol which contains the address of the specified
/// ptr.
virtual void *emitGlobalValueIndirectSym(const GlobalValue* GV, void *ptr,
- MachineCodeEmitter &MCE) {
+ JITCodeEmitter &JCE) {
assert(0 && "This target doesn't implement emitGlobalValueIndirectSym!");
return 0;
}
- /// emitFunctionStub - Use the specified MachineCodeEmitter object to emit a
+ /// Records the required size and alignment for a call stub in bytes.
+ struct StubLayout {
+ size_t Size;
+ size_t Alignment;
+ };
+ /// Returns the maximum size and alignment for a call stub on this target.
+ virtual StubLayout getStubLayout() {
+ llvm_unreachable("This target doesn't implement getStubLayout!");
+ StubLayout Result = {0, 0};
+ return Result;
+ }
+
+ /// emitFunctionStub - Use the specified JITCodeEmitter object to emit a
/// small native function that simply calls the function at the specified
- /// address. Return the address of the resultant function.
- virtual void *emitFunctionStub(const Function* F, void *Fn,
- MachineCodeEmitter &MCE) {
+ /// address. The JITCodeEmitter must already have storage allocated for the
+ /// stub. Return the address of the resultant function, which may have been
+ /// aligned from the address the JCE was set up to emit at.
+ virtual void *emitFunctionStub(const Function* F, void *Target,
+ JITCodeEmitter &JCE) {
assert(0 && "This target doesn't implement emitFunctionStub!");
return 0;
}
-
- /// emitFunctionStubAtAddr - Use the specified MachineCodeEmitter object to
- /// emit a small native function that simply calls Fn. Emit the stub into
- /// the supplied buffer.
- virtual void emitFunctionStubAtAddr(const Function* F, void *Fn,
- void *Buffer, MachineCodeEmitter &MCE) {
- assert(0 && "This target doesn't implement emitFunctionStubAtAddr!");
- }
/// getPICJumpTableEntry - Returns the value of the jumptable entry for the
/// specific basic block.
/// allocateSeparateGVMemory - If true, globals should be placed in
/// separately allocated heap memory rather than in the same
- /// code memory allocated by MachineCodeEmitter.
+ /// code memory allocated by JITCodeEmitter.
virtual bool allocateSeparateGVMemory() const { return false; }
protected:
bool useGOT;