1//===-- PPCMCAsmInfo.cpp - PPC asm properties -----------------------------===//
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 contains the declarations of the MCAsmInfoDarwin properties.
10//
11//===----------------------------------------------------------------------===//
12
13#include "PPCMCAsmInfo.h"
14#include "llvm/ADT/Triple.h"
15#include <cassert>
16
17using namespace llvm;
18
19void PPCELFMCAsmInfo::anchor() { }
20
21PPCELFMCAsmInfo::PPCELFMCAsmInfo(bool is64Bit, const Triple& T) {
22  // FIXME: This is not always needed. For example, it is not needed in the
23  // v2 abi.
24  NeedsLocalForSize = true;
25
26  if (is64Bit) {
27    CodePointerSize = CalleeSaveStackSlotSize = 8;
28  }
29  IsLittleEndian = T.getArch() == Triple::ppc64le;
30
31  // ".comm align is in bytes but .align is pow-2."
32  AlignmentIsInBytes = false;
33
34  CommentString = "#";
35
36  // Uses '.section' before '.bss' directive
37  UsesELFSectionDirectiveForBSS = true;
38
39  // Debug Information
40  SupportsDebugInformation = true;
41
42  DollarIsPC = true;
43
44  // Set up DWARF directives
45  MinInstAlignment = 4;
46
47  // Exceptions handling
48  ExceptionsType = ExceptionHandling::DwarfCFI;
49
50  ZeroDirective = "\t.space\t";
51  Data64bitsDirective = is64Bit ? "\t.quad\t" : nullptr;
52  AssemblerDialect = 1;           // New-Style mnemonics.
53  LCOMMDirectiveAlignmentType = LCOMM::ByteAlignment;
54}
55
56void PPCXCOFFMCAsmInfo::anchor() {}
57
58PPCXCOFFMCAsmInfo::PPCXCOFFMCAsmInfo(bool Is64Bit, const Triple &T) {
59  if (T.getArch() == Triple::ppc64le)
60    report_fatal_error("XCOFF is not supported for little-endian targets");
61  CodePointerSize = CalleeSaveStackSlotSize = Is64Bit ? 8 : 4;
62
63  // A size of 8 is only supported by the assembler under 64-bit.
64  Data64bitsDirective = Is64Bit ? "\t.vbyte\t8, " : nullptr;
65}
66