1 //===- XtensaSubtarget.cpp - Xtensa Subtarget Information -----------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file implements the Xtensa specific subclass of TargetSubtargetInfo.
10 //
11 //===----------------------------------------------------------------------===//
12
13 #include "XtensaSubtarget.h"
14 #include "llvm/IR/GlobalValue.h"
15 #include "llvm/Support/Debug.h"
16
17 #define DEBUG_TYPE "xtensa-subtarget"
18
19 #define GET_SUBTARGETINFO_TARGET_DESC
20 #define GET_SUBTARGETINFO_CTOR
21 #include "XtensaGenSubtargetInfo.inc"
22
23 using namespace llvm;
24
25 XtensaSubtarget &
initializeSubtargetDependencies(StringRef CPU,StringRef FS)26 XtensaSubtarget::initializeSubtargetDependencies(StringRef CPU, StringRef FS) {
27 StringRef CPUName = CPU;
28 if (CPUName.empty()) {
29 // set default cpu name
30 CPUName = "generic";
31 }
32
33 HasDensity = false;
34
35 // Parse features string.
36 ParseSubtargetFeatures(CPUName, CPUName, FS);
37 return *this;
38 }
39
XtensaSubtarget(const Triple & TT,StringRef CPU,StringRef FS,const TargetMachine & TM)40 XtensaSubtarget::XtensaSubtarget(const Triple &TT, StringRef CPU, StringRef FS,
41 const TargetMachine &TM)
42 : XtensaGenSubtargetInfo(TT, CPU, /*TuneCPU=*/CPU, FS), TargetTriple(TT),
43 InstrInfo(initializeSubtargetDependencies(CPU, FS)), TLInfo(TM, *this),
44 TSInfo(), FrameLowering(*this) {}
45