1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
//===-- Nios2Subtarget.cpp - Nios2 Subtarget Information ------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the Nios2 specific subclass of TargetSubtargetInfo.
//
//===----------------------------------------------------------------------===//
#include "Nios2Subtarget.h"
#include "Nios2.h"
using namespace llvm;
#define DEBUG_TYPE "nios2-subtarget"
#define GET_SUBTARGETINFO_TARGET_DESC
#define GET_SUBTARGETINFO_CTOR
#include "Nios2GenSubtargetInfo.inc"
void Nios2Subtarget::anchor() {}
Nios2Subtarget::Nios2Subtarget(const Triple &TT, const std::string &CPU,
const std::string &FS, const TargetMachine &TM)
:
// Nios2GenSubtargetInfo will display features by llc -march=nios2
// -mcpu=help
Nios2GenSubtargetInfo(TT, CPU, FS), TargetTriple(TT),
InstrInfo(initializeSubtargetDependencies(CPU, FS)), TLInfo(TM, *this),
FrameLowering(*this) {}
Nios2Subtarget &Nios2Subtarget::initializeSubtargetDependencies(StringRef CPU,
StringRef FS) {
if (TargetTriple.getArch() == Triple::nios2) {
if (CPU != "nios2r2") {
CPU = "nios2r1";
Nios2ArchVersion = Nios2r1;
} else {
Nios2ArchVersion = Nios2r2;
}
} else {
errs() << "!!!Error, TargetTriple.getArch() = " << TargetTriple.getArch()
<< "CPU = " << CPU << "\n";
exit(0);
}
// Parse features string.
ParseSubtargetFeatures(CPU, FS);
return *this;
}
|
