mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-24 22:32:47 +00:00
04321f70f5
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34521 91177308-0d34-0410-b5e6-96231b3b80d8
58 lines
1.6 KiB
C++
58 lines
1.6 KiB
C++
//===-- ARMSubtarget.cpp - ARM Subtarget Information ------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file was developed by Evan Cheng and is distributed under the
|
|
// University of Illinois Open Source License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements the ARM specific subclass of TargetSubtarget.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "ARMSubtarget.h"
|
|
#include "ARMGenSubtarget.inc"
|
|
#include "llvm/Module.h"
|
|
using namespace llvm;
|
|
|
|
ARMSubtarget::ARMSubtarget(const Module &M, const std::string &FS, bool thumb)
|
|
: ARMArchVersion(V4T)
|
|
, HasVFP2(false)
|
|
, IsThumb(thumb)
|
|
, UseThumbBacktraces(false)
|
|
, IsR9Reserved(false)
|
|
, stackAlignment(4)
|
|
, TargetType(isELF) // Default to ELF unless otherwise specified.
|
|
, TargetABI(ARM_ABI_APCS) {
|
|
|
|
// Determine default and user specified characteristics
|
|
std::string CPU = "generic";
|
|
|
|
// Parse features string.
|
|
ParseSubtargetFeatures(FS, CPU);
|
|
|
|
// Set the boolean corresponding to the current target triple, or the default
|
|
// if one cannot be determined, to true.
|
|
const std::string& TT = M.getTargetTriple();
|
|
if (TT.length() > 5) {
|
|
if (TT.find("-darwin") != std::string::npos)
|
|
TargetType = isDarwin;
|
|
} else if (TT.empty()) {
|
|
#if defined(__APPLE__)
|
|
TargetType = isDarwin;
|
|
#endif
|
|
}
|
|
|
|
if (TT.find("eabi") != std::string::npos)
|
|
TargetABI = ARM_ABI_AAPCS;
|
|
|
|
if (isAAPCS_ABI())
|
|
stackAlignment = 8;
|
|
|
|
if (isTargetDarwin()) {
|
|
UseThumbBacktraces = true;
|
|
IsR9Reserved = true;
|
|
}
|
|
}
|