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//===-- SystemZTargetMachine.cpp - Define TargetMachine for SystemZ -------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "SystemZTargetMachine.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/Support/TargetRegistry.h"
using namespace llvm;
extern "C" void LLVMInitializeSystemZTarget() {
// Register the target.
RegisterTargetMachine<SystemZTargetMachine> X(TheSystemZTarget);
}
SystemZTargetMachine::SystemZTargetMachine(const Target &T, StringRef TT,
StringRef CPU, StringRef FS,
const TargetOptions &Options,
Reloc::Model RM,
CodeModel::Model CM,
CodeGenOpt::Level OL)
: LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
Subtarget(TT, CPU, FS),
// Make sure that global data has at least 16 bits of alignment by default,
// so that we can refer to it using LARL. We don't have any special
// requirements for stack variables though.
DL("E-p:64:64:64-i1:8:16-i8:8:16-i16:16-i32:32-i64:64"
"-f32:32-f64:64-f128:64-a0:8:16-n32:64"),
InstrInfo(*this), TLInfo(*this), TSInfo(*this),
FrameLowering(*this, Subtarget) {
initAsmInfo();
}
namespace {
/// SystemZ Code Generator Pass Configuration Options.
class SystemZPassConfig : public TargetPassConfig {
public:
SystemZPassConfig(SystemZTargetMachine *TM, PassManagerBase &PM)
: TargetPassConfig(TM, PM) {}
SystemZTargetMachine &getSystemZTargetMachine() const {
return getTM<SystemZTargetMachine>();
}
virtual bool addInstSelector();
};
} // end anonymous namespace
bool SystemZPassConfig::addInstSelector() {
addPass(createSystemZISelDag(getSystemZTargetMachine(), getOptLevel()));
return false;
}
TargetPassConfig *SystemZTargetMachine::createPassConfig(PassManagerBase &PM) {
return new SystemZPassConfig(this, PM);
}
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