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https://github.com/c64scene-ar/llvm-6502.git
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f9c1ccf280
the masm backend. If anyone cares about masm in the future, we'll have semantic sections it can hang off of. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78096 91177308-0d34-0410-b5e6-96231b3b80d8
116 lines
3.1 KiB
C++
116 lines
3.1 KiB
C++
//===-- TargetAsmInfo.cpp - Asm Info ---------------------------------------==//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines target asm properties related what form asm statements
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// should take.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Target/TargetAsmInfo.h"
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#include <cctype>
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#include <cstring>
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using namespace llvm;
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TargetAsmInfo::TargetAsmInfo() {
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ZeroFillDirective = 0;
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NonexecutableStackDirective = 0;
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NeedsSet = false;
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MaxInstLength = 4;
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PCSymbol = "$";
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SeparatorChar = ';';
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CommentColumn = 60;
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CommentString = "#";
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FirstOperandColumn = 0;
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MaxOperandLength = 0;
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GlobalPrefix = "";
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PrivateGlobalPrefix = ".";
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LinkerPrivateGlobalPrefix = "";
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JumpTableSpecialLabelPrefix = 0;
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GlobalVarAddrPrefix = "";
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GlobalVarAddrSuffix = "";
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FunctionAddrPrefix = "";
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FunctionAddrSuffix = "";
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PersonalityPrefix = "";
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PersonalitySuffix = "";
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NeedsIndirectEncoding = false;
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InlineAsmStart = "#APP";
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InlineAsmEnd = "#NO_APP";
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AssemblerDialect = 0;
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AllowQuotesInName = false;
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ZeroDirective = "\t.zero\t";
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ZeroDirectiveSuffix = 0;
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AsciiDirective = "\t.ascii\t";
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AscizDirective = "\t.asciz\t";
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Data8bitsDirective = "\t.byte\t";
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Data16bitsDirective = "\t.short\t";
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Data32bitsDirective = "\t.long\t";
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Data64bitsDirective = "\t.quad\t";
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AlignDirective = "\t.align\t";
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AlignmentIsInBytes = true;
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TextAlignFillValue = 0;
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SwitchToSectionDirective = "\t.section\t";
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TextSectionStartSuffix = "";
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DataSectionStartSuffix = "";
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JumpTableDirective = 0;
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GlobalDirective = "\t.globl\t";
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SetDirective = 0;
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LCOMMDirective = 0;
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COMMDirective = "\t.comm\t";
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COMMDirectiveTakesAlignment = true;
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HasDotTypeDotSizeDirective = true;
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HasSingleParameterDotFile = true;
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UsedDirective = 0;
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WeakRefDirective = 0;
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WeakDefDirective = 0;
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// FIXME: These are ELFish - move to ELFTAI.
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HiddenDirective = "\t.hidden\t";
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ProtectedDirective = "\t.protected\t";
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AbsoluteDebugSectionOffsets = false;
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AbsoluteEHSectionOffsets = false;
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HasLEB128 = false;
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HasDotLocAndDotFile = false;
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SupportsDebugInformation = false;
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SupportsExceptionHandling = false;
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DwarfRequiresFrameSection = true;
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DwarfUsesInlineInfoSection = false;
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Is_EHSymbolPrivate = true;
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GlobalEHDirective = 0;
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SupportsWeakOmittedEHFrame = true;
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DwarfSectionOffsetDirective = 0;
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AsmTransCBE = 0;
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}
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TargetAsmInfo::~TargetAsmInfo() {
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}
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unsigned TargetAsmInfo::getULEB128Size(unsigned Value) {
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unsigned Size = 0;
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do {
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Value >>= 7;
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Size += sizeof(int8_t);
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} while (Value);
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return Size;
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}
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unsigned TargetAsmInfo::getSLEB128Size(int Value) {
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unsigned Size = 0;
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int Sign = Value >> (8 * sizeof(Value) - 1);
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bool IsMore;
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do {
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unsigned Byte = Value & 0x7f;
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Value >>= 7;
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IsMore = Value != Sign || ((Byte ^ Sign) & 0x40) != 0;
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Size += sizeof(int8_t);
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} while (IsMore);
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return Size;
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}
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