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/TargetParser/Triple.h" 15 #include <cassert> 16 17 using namespace llvm; 18 19 void PPCELFMCAsmInfo::anchor() { } 20 21 PPCELFMCAsmInfo::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 = 30 T.getArch() == Triple::ppc64le || T.getArch() == Triple::ppcle; 31 32 // ".comm align is in bytes but .align is pow-2." 33 AlignmentIsInBytes = false; 34 35 CommentString = "#"; 36 37 // Uses '.section' before '.bss' directive 38 UsesELFSectionDirectiveForBSS = true; 39 40 // Debug Information 41 SupportsDebugInformation = true; 42 43 DollarIsPC = true; 44 45 // Set up DWARF directives 46 MinInstAlignment = 4; 47 48 // Exceptions handling 49 ExceptionsType = ExceptionHandling::DwarfCFI; 50 51 ZeroDirective = "\t.space\t"; 52 Data64bitsDirective = is64Bit ? "\t.quad\t" : nullptr; 53 AssemblerDialect = 1; // New-Style mnemonics. 54 LCOMMDirectiveAlignmentType = LCOMM::ByteAlignment; 55 } 56 57 void PPCXCOFFMCAsmInfo::anchor() {} 58 59 PPCXCOFFMCAsmInfo::PPCXCOFFMCAsmInfo(bool Is64Bit, const Triple &T) { 60 if (T.getArch() == Triple::ppc64le || T.getArch() == Triple::ppcle) 61 report_fatal_error("XCOFF is not supported for little-endian targets"); 62 CodePointerSize = CalleeSaveStackSlotSize = Is64Bit ? 8 : 4; 63 64 // A size of 8 is only supported by the assembler under 64-bit. 65 Data64bitsDirective = Is64Bit ? "\t.vbyte\t8, " : nullptr; 66 67 // Debug Information 68 SupportsDebugInformation = true; 69 70 // Set up DWARF directives 71 MinInstAlignment = 4; 72 73 // Support $ as PC in inline asm 74 DollarIsPC = true; 75 } 76