forked from OSchip/llvm-project
Split X86TargetAsmInfo into 4 subtarget-specific classes
llvm-svn: 53299
This commit is contained in:
Anton Korobeynikov
parent
84fd5698f3
commit
9a6ed374f8
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@ -41,197 +41,8 @@ X86TargetAsmInfo::X86TargetAsmInfo(const X86TargetMachine &TM) {
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const X86Subtarget *Subtarget = &TM.getSubtarget<X86Subtarget>();
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X86TM = &TM;
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// FIXME - Should be simplified.
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AsmTransCBE = x86_asm_table;
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switch (Subtarget->TargetType) {
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case X86Subtarget::isDarwin:
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AlignmentIsInBytes = false;
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TextAlignFillValue = 0x90;
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GlobalPrefix = "_";
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if (!Subtarget->is64Bit())
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Data64bitsDirective = 0; // we can't emit a 64-bit unit
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ZeroDirective = "\t.space\t"; // ".space N" emits N zeros.
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PrivateGlobalPrefix = "L"; // Marker for constant pool idxs
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BSSSection = 0; // no BSS section.
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ZeroFillDirective = "\t.zerofill\t"; // Uses .zerofill
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ConstantPoolSection = "\t.const\n";
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JumpTableDataSection = "\t.const\n";
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CStringSection = "\t.cstring";
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FourByteConstantSection = "\t.literal4\n";
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EightByteConstantSection = "\t.literal8\n";
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if (Subtarget->is64Bit())
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SixteenByteConstantSection = "\t.literal16\n";
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ReadOnlySection = "\t.const\n";
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LCOMMDirective = "\t.lcomm\t";
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SwitchToSectionDirective = "\t.section ";
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StringConstantPrefix = "\1LC";
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COMMDirectiveTakesAlignment = false;
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HasDotTypeDotSizeDirective = false;
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if (TM.getRelocationModel() == Reloc::Static) {
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StaticCtorsSection = ".constructor";
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StaticDtorsSection = ".destructor";
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} else {
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StaticCtorsSection = ".mod_init_func";
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StaticDtorsSection = ".mod_term_func";
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}
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if (Subtarget->is64Bit()) {
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PersonalityPrefix = "";
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PersonalitySuffix = "+4@GOTPCREL";
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} else {
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PersonalityPrefix = "L";
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PersonalitySuffix = "$non_lazy_ptr";
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}
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NeedsIndirectEncoding = true;
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InlineAsmStart = "## InlineAsm Start";
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InlineAsmEnd = "## InlineAsm End";
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CommentString = "##";
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SetDirective = "\t.set";
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PCSymbol = ".";
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UsedDirective = "\t.no_dead_strip\t";
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WeakDefDirective = "\t.weak_definition ";
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WeakRefDirective = "\t.weak_reference ";
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HiddenDirective = "\t.private_extern ";
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ProtectedDirective = "\t.globl\t";
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// In non-PIC modes, emit a special label before jump tables so that the
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// linker can perform more accurate dead code stripping.
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if (TM.getRelocationModel() != Reloc::PIC_) {
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// Emit a local label that is preserved until the linker runs.
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JumpTableSpecialLabelPrefix = "l";
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}
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SupportsDebugInformation = true;
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NeedsSet = true;
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DwarfAbbrevSection = ".section __DWARF,__debug_abbrev,regular,debug";
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DwarfInfoSection = ".section __DWARF,__debug_info,regular,debug";
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DwarfLineSection = ".section __DWARF,__debug_line,regular,debug";
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DwarfFrameSection = ".section __DWARF,__debug_frame,regular,debug";
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DwarfPubNamesSection = ".section __DWARF,__debug_pubnames,regular,debug";
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DwarfPubTypesSection = ".section __DWARF,__debug_pubtypes,regular,debug";
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DwarfStrSection = ".section __DWARF,__debug_str,regular,debug";
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DwarfLocSection = ".section __DWARF,__debug_loc,regular,debug";
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DwarfARangesSection = ".section __DWARF,__debug_aranges,regular,debug";
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DwarfRangesSection = ".section __DWARF,__debug_ranges,regular,debug";
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DwarfMacInfoSection = ".section __DWARF,__debug_macinfo,regular,debug";
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// Exceptions handling
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SupportsExceptionHandling = true;
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GlobalEHDirective = "\t.globl\t";
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SupportsWeakOmittedEHFrame = false;
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AbsoluteEHSectionOffsets = false;
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DwarfEHFrameSection =
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".section __TEXT,__eh_frame,coalesced,no_toc+strip_static_syms+live_support";
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DwarfExceptionSection = ".section __DATA,__gcc_except_tab";
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break;
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case X86Subtarget::isELF:
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ReadOnlySection = "\t.section\t.rodata";
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FourByteConstantSection = "\t.section\t.rodata.cst4,\"aM\",@progbits,4";
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EightByteConstantSection = "\t.section\t.rodata.cst8,\"aM\",@progbits,8";
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SixteenByteConstantSection = "\t.section\t.rodata.cst16,\"aM\",@progbits,16";
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CStringSection = "\t.section\t.rodata.str1.1,\"aMS\",@progbits,1";
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PrivateGlobalPrefix = ".L";
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WeakRefDirective = "\t.weak\t";
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SetDirective = "\t.set\t";
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PCSymbol = ".";
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// Set up DWARF directives
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HasLEB128 = true; // Target asm supports leb128 directives (little-endian)
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// Debug Information
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AbsoluteDebugSectionOffsets = true;
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SupportsDebugInformation = true;
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DwarfAbbrevSection = "\t.section\t.debug_abbrev,\"\",@progbits";
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DwarfInfoSection = "\t.section\t.debug_info,\"\",@progbits";
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DwarfLineSection = "\t.section\t.debug_line,\"\",@progbits";
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DwarfFrameSection = "\t.section\t.debug_frame,\"\",@progbits";
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DwarfPubNamesSection ="\t.section\t.debug_pubnames,\"\",@progbits";
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DwarfPubTypesSection ="\t.section\t.debug_pubtypes,\"\",@progbits";
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DwarfStrSection = "\t.section\t.debug_str,\"\",@progbits";
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DwarfLocSection = "\t.section\t.debug_loc,\"\",@progbits";
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DwarfARangesSection = "\t.section\t.debug_aranges,\"\",@progbits";
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DwarfRangesSection = "\t.section\t.debug_ranges,\"\",@progbits";
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DwarfMacInfoSection = "\t.section\t.debug_macinfo,\"\",@progbits";
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// Exceptions handling
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if (!Subtarget->is64Bit())
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SupportsExceptionHandling = true;
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AbsoluteEHSectionOffsets = false;
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DwarfEHFrameSection = "\t.section\t.eh_frame,\"aw\",@progbits";
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DwarfExceptionSection = "\t.section\t.gcc_except_table,\"a\",@progbits";
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break;
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case X86Subtarget::isCygwin:
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case X86Subtarget::isMingw:
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GlobalPrefix = "_";
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LCOMMDirective = "\t.lcomm\t";
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COMMDirectiveTakesAlignment = false;
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HasDotTypeDotSizeDirective = false;
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StaticCtorsSection = "\t.section .ctors,\"aw\"";
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StaticDtorsSection = "\t.section .dtors,\"aw\"";
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HiddenDirective = NULL;
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PrivateGlobalPrefix = "L"; // Prefix for private global symbols
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WeakRefDirective = "\t.weak\t";
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SetDirective = "\t.set\t";
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// Set up DWARF directives
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HasLEB128 = true; // Target asm supports leb128 directives (little-endian)
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AbsoluteDebugSectionOffsets = true;
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AbsoluteEHSectionOffsets = false;
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SupportsDebugInformation = true;
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DwarfSectionOffsetDirective = "\t.secrel32\t";
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DwarfAbbrevSection = "\t.section\t.debug_abbrev,\"dr\"";
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DwarfInfoSection = "\t.section\t.debug_info,\"dr\"";
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DwarfLineSection = "\t.section\t.debug_line,\"dr\"";
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DwarfFrameSection = "\t.section\t.debug_frame,\"dr\"";
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DwarfPubNamesSection ="\t.section\t.debug_pubnames,\"dr\"";
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DwarfPubTypesSection ="\t.section\t.debug_pubtypes,\"dr\"";
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DwarfStrSection = "\t.section\t.debug_str,\"dr\"";
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DwarfLocSection = "\t.section\t.debug_loc,\"dr\"";
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DwarfARangesSection = "\t.section\t.debug_aranges,\"dr\"";
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DwarfRangesSection = "\t.section\t.debug_ranges,\"dr\"";
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DwarfMacInfoSection = "\t.section\t.debug_macinfo,\"dr\"";
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break;
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case X86Subtarget::isWindows:
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GlobalPrefix = "_";
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HasDotTypeDotSizeDirective = false;
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break;
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default: break;
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}
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if (Subtarget->isFlavorIntel()) {
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GlobalPrefix = "_";
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CommentString = ";";
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PrivateGlobalPrefix = "$";
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AlignDirective = "\talign\t";
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ZeroDirective = "\tdb\t";
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ZeroDirectiveSuffix = " dup(0)";
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AsciiDirective = "\tdb\t";
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AscizDirective = 0;
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Data8bitsDirective = "\tdb\t";
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Data16bitsDirective = "\tdw\t";
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Data32bitsDirective = "\tdd\t";
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Data64bitsDirective = "\tdq\t";
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HasDotTypeDotSizeDirective = false;
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TextSection = "_text";
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DataSection = "_data";
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JumpTableDataSection = NULL;
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SwitchToSectionDirective = "";
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TextSectionStartSuffix = "\tsegment 'CODE'";
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DataSectionStartSuffix = "\tsegment 'DATA'";
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SectionEndDirectiveSuffix = "\tends\n";
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}
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// On Linux we must declare when we can use a non-executable stack.
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if (Subtarget->isLinux())
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NonexecutableStackDirective = "\t.section\t.note.GNU-stack,\"\",@progbits";
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AssemblerDialect = Subtarget->getAsmFlavor();
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}
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@ -315,6 +126,192 @@ bool X86TargetAsmInfo::ExpandInlineAsm(CallInst *CI) const {
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return false;
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}
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X86DarwinTargetAsmInfo::X86DarwinTargetAsmInfo(const X86TargetMachine &TM):
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X86TargetAsmInfo(TM) {
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bool is64Bit = X86TM->getSubtarget<X86Subtarget>().is64Bit();
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AlignmentIsInBytes = false;
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TextAlignFillValue = 0x90;
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GlobalPrefix = "_";
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if (!is64Bit)
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Data64bitsDirective = 0; // we can't emit a 64-bit unit
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ZeroDirective = "\t.space\t"; // ".space N" emits N zeros.
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PrivateGlobalPrefix = "L"; // Marker for constant pool idxs
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BSSSection = 0; // no BSS section.
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ZeroFillDirective = "\t.zerofill\t"; // Uses .zerofill
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ConstantPoolSection = "\t.const\n";
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JumpTableDataSection = "\t.const\n";
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CStringSection = "\t.cstring";
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FourByteConstantSection = "\t.literal4\n";
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EightByteConstantSection = "\t.literal8\n";
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// FIXME: Why don't always use this section?
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if (is64Bit)
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SixteenByteConstantSection = "\t.literal16\n";
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ReadOnlySection = "\t.const\n";
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LCOMMDirective = "\t.lcomm\t";
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SwitchToSectionDirective = "\t.section ";
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StringConstantPrefix = "\1LC";
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COMMDirectiveTakesAlignment = false;
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HasDotTypeDotSizeDirective = false;
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if (TM.getRelocationModel() == Reloc::Static) {
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StaticCtorsSection = ".constructor";
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StaticDtorsSection = ".destructor";
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} else {
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StaticCtorsSection = ".mod_init_func";
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StaticDtorsSection = ".mod_term_func";
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}
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if (is64Bit) {
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PersonalityPrefix = "";
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PersonalitySuffix = "+4@GOTPCREL";
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} else {
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PersonalityPrefix = "L";
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PersonalitySuffix = "$non_lazy_ptr";
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}
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NeedsIndirectEncoding = true;
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InlineAsmStart = "## InlineAsm Start";
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InlineAsmEnd = "## InlineAsm End";
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CommentString = "##";
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SetDirective = "\t.set";
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PCSymbol = ".";
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UsedDirective = "\t.no_dead_strip\t";
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WeakDefDirective = "\t.weak_definition ";
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WeakRefDirective = "\t.weak_reference ";
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HiddenDirective = "\t.private_extern ";
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ProtectedDirective = "\t.globl\t";
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// In non-PIC modes, emit a special label before jump tables so that the
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// linker can perform more accurate dead code stripping.
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if (TM.getRelocationModel() != Reloc::PIC_) {
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// Emit a local label that is preserved until the linker runs.
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JumpTableSpecialLabelPrefix = "l";
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}
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SupportsDebugInformation = true;
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NeedsSet = true;
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DwarfAbbrevSection = ".section __DWARF,__debug_abbrev,regular,debug";
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DwarfInfoSection = ".section __DWARF,__debug_info,regular,debug";
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DwarfLineSection = ".section __DWARF,__debug_line,regular,debug";
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DwarfFrameSection = ".section __DWARF,__debug_frame,regular,debug";
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DwarfPubNamesSection = ".section __DWARF,__debug_pubnames,regular,debug";
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DwarfPubTypesSection = ".section __DWARF,__debug_pubtypes,regular,debug";
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DwarfStrSection = ".section __DWARF,__debug_str,regular,debug";
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DwarfLocSection = ".section __DWARF,__debug_loc,regular,debug";
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DwarfARangesSection = ".section __DWARF,__debug_aranges,regular,debug";
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DwarfRangesSection = ".section __DWARF,__debug_ranges,regular,debug";
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DwarfMacInfoSection = ".section __DWARF,__debug_macinfo,regular,debug";
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// Exceptions handling
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SupportsExceptionHandling = true;
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GlobalEHDirective = "\t.globl\t";
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SupportsWeakOmittedEHFrame = false;
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AbsoluteEHSectionOffsets = false;
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DwarfEHFrameSection =
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".section __TEXT,__eh_frame,coalesced,no_toc+strip_static_syms+live_support";
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DwarfExceptionSection = ".section __DATA,__gcc_except_tab";
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}
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X86ELFTargetAsmInfo::X86ELFTargetAsmInfo(const X86TargetMachine &TM):
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X86TargetAsmInfo(TM) {
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bool is64Bit = X86TM->getSubtarget<X86Subtarget>().is64Bit();
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ReadOnlySection = "\t.section\t.rodata";
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FourByteConstantSection = "\t.section\t.rodata.cst4,\"aM\",@progbits,4";
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EightByteConstantSection = "\t.section\t.rodata.cst8,\"aM\",@progbits,8";
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SixteenByteConstantSection = "\t.section\t.rodata.cst16,\"aM\",@progbits,16";
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CStringSection = "\t.section\t.rodata.str1.1,\"aMS\",@progbits,1";
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PrivateGlobalPrefix = ".L";
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WeakRefDirective = "\t.weak\t";
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SetDirective = "\t.set\t";
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PCSymbol = ".";
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// Set up DWARF directives
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HasLEB128 = true; // Target asm supports leb128 directives (little-endian)
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// Debug Information
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AbsoluteDebugSectionOffsets = true;
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SupportsDebugInformation = true;
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DwarfAbbrevSection = "\t.section\t.debug_abbrev,\"\",@progbits";
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DwarfInfoSection = "\t.section\t.debug_info,\"\",@progbits";
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DwarfLineSection = "\t.section\t.debug_line,\"\",@progbits";
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DwarfFrameSection = "\t.section\t.debug_frame,\"\",@progbits";
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DwarfPubNamesSection ="\t.section\t.debug_pubnames,\"\",@progbits";
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DwarfPubTypesSection ="\t.section\t.debug_pubtypes,\"\",@progbits";
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DwarfStrSection = "\t.section\t.debug_str,\"\",@progbits";
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DwarfLocSection = "\t.section\t.debug_loc,\"\",@progbits";
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DwarfARangesSection = "\t.section\t.debug_aranges,\"\",@progbits";
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DwarfRangesSection = "\t.section\t.debug_ranges,\"\",@progbits";
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DwarfMacInfoSection = "\t.section\t.debug_macinfo,\"\",@progbits";
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// Exceptions handling
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if (!is64Bit)
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SupportsExceptionHandling = true;
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AbsoluteEHSectionOffsets = false;
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DwarfEHFrameSection = "\t.section\t.eh_frame,\"aw\",@progbits";
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DwarfExceptionSection = "\t.section\t.gcc_except_table,\"a\",@progbits";
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// On Linux we must declare when we can use a non-executable stack.
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if (X86TM->getSubtarget<X86Subtarget>().isLinux())
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NonexecutableStackDirective = "\t.section\t.note.GNU-stack,\"\",@progbits";
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}
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X86COFFTargetAsmInfo::X86COFFTargetAsmInfo(const X86TargetMachine &TM):
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X86TargetAsmInfo(TM) {
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GlobalPrefix = "_";
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LCOMMDirective = "\t.lcomm\t";
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COMMDirectiveTakesAlignment = false;
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HasDotTypeDotSizeDirective = false;
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StaticCtorsSection = "\t.section .ctors,\"aw\"";
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StaticDtorsSection = "\t.section .dtors,\"aw\"";
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HiddenDirective = NULL;
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PrivateGlobalPrefix = "L"; // Prefix for private global symbols
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WeakRefDirective = "\t.weak\t";
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SetDirective = "\t.set\t";
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// Set up DWARF directives
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HasLEB128 = true; // Target asm supports leb128 directives (little-endian)
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AbsoluteDebugSectionOffsets = true;
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AbsoluteEHSectionOffsets = false;
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SupportsDebugInformation = true;
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DwarfSectionOffsetDirective = "\t.secrel32\t";
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DwarfAbbrevSection = "\t.section\t.debug_abbrev,\"dr\"";
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DwarfInfoSection = "\t.section\t.debug_info,\"dr\"";
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DwarfLineSection = "\t.section\t.debug_line,\"dr\"";
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DwarfFrameSection = "\t.section\t.debug_frame,\"dr\"";
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DwarfPubNamesSection ="\t.section\t.debug_pubnames,\"dr\"";
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DwarfPubTypesSection ="\t.section\t.debug_pubtypes,\"dr\"";
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DwarfStrSection = "\t.section\t.debug_str,\"dr\"";
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DwarfLocSection = "\t.section\t.debug_loc,\"dr\"";
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DwarfARangesSection = "\t.section\t.debug_aranges,\"dr\"";
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DwarfRangesSection = "\t.section\t.debug_ranges,\"dr\"";
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DwarfMacInfoSection = "\t.section\t.debug_macinfo,\"dr\"";
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}
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X86WinTargetAsmInfo::X86WinTargetAsmInfo(const X86TargetMachine &TM):
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X86TargetAsmInfo(TM) {
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GlobalPrefix = "_";
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CommentString = ";";
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PrivateGlobalPrefix = "$";
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AlignDirective = "\talign\t";
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ZeroDirective = "\tdb\t";
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ZeroDirectiveSuffix = " dup(0)";
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AsciiDirective = "\tdb\t";
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AscizDirective = 0;
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Data8bitsDirective = "\tdb\t";
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Data16bitsDirective = "\tdw\t";
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Data32bitsDirective = "\tdd\t";
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Data64bitsDirective = "\tdq\t";
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HasDotTypeDotSizeDirective = false;
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TextSection = "_text";
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DataSection = "_data";
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JumpTableDataSection = NULL;
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SwitchToSectionDirective = "";
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TextSectionStartSuffix = "\tsegment 'CODE'";
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DataSectionStartSuffix = "\tsegment 'DATA'";
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SectionEndDirectiveSuffix = "\tends\n";
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}
|
||||
|
||||
/// PreferredEHDataFormat - This hook allows the target to select data
|
||||
/// format used for encoding pointers in exception handling data. Reason is
|
||||
/// 0 for data, 1 for code labels, 2 for function pointers. Global is true
|
||||
|
|
|
|||
|
|
@ -33,8 +33,25 @@ namespace llvm {
|
|||
virtual std::string PrintSectionFlags(unsigned flags) const;
|
||||
|
||||
private:
|
||||
const X86TargetMachine* X86TM;
|
||||
bool LowerToBSwap(CallInst *CI) const;
|
||||
protected:
|
||||
const X86TargetMachine* X86TM;
|
||||
};
|
||||
|
||||
struct X86DarwinTargetAsmInfo : public X86TargetAsmInfo {
|
||||
explicit X86DarwinTargetAsmInfo(const X86TargetMachine &TM);
|
||||
};
|
||||
|
||||
struct X86ELFTargetAsmInfo : public X86TargetAsmInfo {
|
||||
explicit X86ELFTargetAsmInfo(const X86TargetMachine &TM);
|
||||
};
|
||||
|
||||
struct X86COFFTargetAsmInfo : public X86TargetAsmInfo {
|
||||
explicit X86COFFTargetAsmInfo(const X86TargetMachine &TM);
|
||||
};
|
||||
|
||||
struct X86WinTargetAsmInfo : public X86TargetAsmInfo {
|
||||
explicit X86WinTargetAsmInfo(const X86TargetMachine &TM);
|
||||
};
|
||||
} // namespace llvm
|
||||
|
||||
|
|
|
|||
|
|
@ -36,7 +36,22 @@ static RegisterTarget<X86_64TargetMachine>
|
|||
Y("x86-64", " 64-bit X86: EM64T and AMD64");
|
||||
|
||||
const TargetAsmInfo *X86TargetMachine::createTargetAsmInfo() const {
|
||||
return new X86TargetAsmInfo(*this);
|
||||
if (Subtarget.isFlavorIntel())
|
||||
return new X86WinTargetAsmInfo(*this);
|
||||
else
|
||||
switch (Subtarget.TargetType) {
|
||||
case X86Subtarget::isDarwin:
|
||||
return new X86DarwinTargetAsmInfo(*this);
|
||||
case X86Subtarget::isELF:
|
||||
return new X86ELFTargetAsmInfo(*this);
|
||||
case X86Subtarget::isMingw:
|
||||
case X86Subtarget::isCygwin:
|
||||
return new X86COFFTargetAsmInfo(*this);
|
||||
case X86Subtarget::isWindows:
|
||||
return new X86WinTargetAsmInfo(*this);
|
||||
default:
|
||||
return new X86TargetAsmInfo(*this);
|
||||
}
|
||||
}
|
||||
|
||||
unsigned X86_32TargetMachine::getJITMatchQuality() {
|
||||
|
|
|
|||
Loading…
Reference in New Issue