[llvm-commits] CVS: llvm/include/llvm/Target/TargetAsmInfo.h
Jim Laskey
jlaskey at apple.com
Wed Sep 6 11:35:50 PDT 2006
Changes in directory llvm/include/llvm/Target:
TargetAsmInfo.h added (r1.1)
---
Log message:
Separate target specifc asm properties from asm printers.
---
Diffs of the changes: (+427 -0)
TargetAsmInfo.h | 427 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 427 insertions(+)
Index: llvm/include/llvm/Target/TargetAsmInfo.h
diff -c /dev/null llvm/include/llvm/Target/TargetAsmInfo.h:1.1
*** /dev/null Wed Sep 6 13:35:43 2006
--- llvm/include/llvm/Target/TargetAsmInfo.h Wed Sep 6 13:35:33 2006
***************
*** 0 ****
--- 1,427 ----
+ //===-- llvm/Target/TargetAsmInfo.h - Asm info ------------------*- C++ -*-===//
+ //
+ // The LLVM Compiler Infrastructure
+ //
+ // This file was developed by James M. Laskey and is distributed under
+ // the University of Illinois Open Source License. See LICENSE.TXT for details.
+ //
+ //===----------------------------------------------------------------------===//
+ //
+ // This file contains a class to be used as the basis for target specific
+ // asm writers. This class primarily takes care of global printing constants,
+ // which are used in very similar ways across all targets.
+ //
+ //===----------------------------------------------------------------------===//
+
+ #ifndef LLVM_TARGET_ASM_INFO_H
+ #define LLVM_TARGET_ASM_INFO_H
+
+ #include "llvm/CodeGen/MachineFunctionPass.h"
+ #include "llvm/Support/DataTypes.h"
+
+ namespace llvm {
+
+ /// TargetAsmInfo - This class is intended to be used as a base class for asm
+ /// properties and features specific to the target.
+ class TargetAsmInfo {
+
+ protected:
+ //===------------------------------------------------------------------===//
+ // Properties to be set by the target writer, used to configure asm printer.
+ //
+
+ /// TextSection - Section directive for standard text.
+ ///
+ const char *TextSection; // Defaults to ".text".
+
+ /// DataSection - Section directive for standard data.
+ ///
+ const char *DataSection; // Defaults to ".data".
+
+ /// AddressSize - Size of addresses used in file.
+ ///
+ unsigned AddressSize; // Defaults to 4.
+
+ /// NeedsSet - True if target asm can't compute addresses on data
+ /// directives.
+ bool NeedsSet; // Defaults to false.
+
+ /// CommentString - This indicates the comment character used by the
+ /// assembler.
+ const char *CommentString; // Defaults to "#"
+
+ /// GlobalPrefix - If this is set to a non-empty string, it is prepended
+ /// onto all global symbols. This is often used for "_" or ".".
+ const char *GlobalPrefix; // Defaults to ""
+
+ /// PrivateGlobalPrefix - This prefix is used for globals like constant
+ /// pool entries that are completely private to the .o file and should not
+ /// have names in the .o file. This is often "." or "L".
+ const char *PrivateGlobalPrefix; // Defaults to "."
+
+ /// GlobalVarAddrPrefix/Suffix - If these are nonempty, these strings
+ /// will enclose any GlobalVariable (that isn't a function)
+ ///
+ const char *GlobalVarAddrPrefix; // Defaults to ""
+ const char *GlobalVarAddrSuffix; // Defaults to ""
+
+ /// FunctionAddrPrefix/Suffix - If these are nonempty, these strings
+ /// will enclose any GlobalVariable that points to a function.
+ /// For example, this is used by the IA64 backend to materialize
+ /// function descriptors, by decorating the ".data8" object with the
+ /// \literal @fptr( ) \endliteral
+ /// link-relocation operator.
+ ///
+ const char *FunctionAddrPrefix; // Defaults to ""
+ const char *FunctionAddrSuffix; // Defaults to ""
+
+ /// InlineAsmStart/End - If these are nonempty, they contain a directive to
+ /// emit before and after an inline assembly statement.
+ const char *InlineAsmStart; // Defaults to "#APP\n"
+ const char *InlineAsmEnd; // Defaults to "#NO_APP\n"
+
+ //===--- Data Emission Directives -------------------------------------===//
+
+ /// ZeroDirective - this should be set to the directive used to get some
+ /// number of zero bytes emitted to the current section. Common cases are
+ /// "\t.zero\t" and "\t.space\t". If this is set to null, the
+ /// Data*bitsDirective's will be used to emit zero bytes.
+ const char *ZeroDirective; // Defaults to "\t.zero\t"
+ const char *ZeroDirectiveSuffix; // Defaults to ""
+
+ /// AsciiDirective - This directive allows emission of an ascii string with
+ /// the standard C escape characters embedded into it.
+ const char *AsciiDirective; // Defaults to "\t.ascii\t"
+
+ /// AscizDirective - If not null, this allows for special handling of
+ /// zero terminated strings on this target. This is commonly supported as
+ /// ".asciz". If a target doesn't support this, it can be set to null.
+ const char *AscizDirective; // Defaults to "\t.asciz\t"
+
+ /// DataDirectives - These directives are used to output some unit of
+ /// integer data to the current section. If a data directive is set to
+ /// null, smaller data directives will be used to emit the large sizes.
+ const char *Data8bitsDirective; // Defaults to "\t.byte\t"
+ const char *Data16bitsDirective; // Defaults to "\t.short\t"
+ const char *Data32bitsDirective; // Defaults to "\t.long\t"
+ const char *Data64bitsDirective; // Defaults to "\t.quad\t"
+
+ //===--- Alignment Information ----------------------------------------===//
+
+ /// AlignDirective - The directive used to emit round up to an alignment
+ /// boundary.
+ ///
+ const char *AlignDirective; // Defaults to "\t.align\t"
+
+ /// AlignmentIsInBytes - If this is true (the default) then the asmprinter
+ /// emits ".align N" directives, where N is the number of bytes to align to.
+ /// Otherwise, it emits ".align log2(N)", e.g. 3 to align to an 8 byte
+ /// boundary.
+ bool AlignmentIsInBytes; // Defaults to true
+
+ //===--- Section Switching Directives ---------------------------------===//
+
+ /// SwitchToSectionDirective - This is the directive used when we want to
+ /// emit a global to an arbitrary section. The section name is emited after
+ /// this.
+ const char *SwitchToSectionDirective; // Defaults to "\t.section\t"
+
+ /// TextSectionStartSuffix - This is printed after each start of section
+ /// directive for text sections.
+ const char *TextSectionStartSuffix; // Defaults to "".
+
+ /// DataSectionStartSuffix - This is printed after each start of section
+ /// directive for data sections.
+ const char *DataSectionStartSuffix; // Defaults to "".
+
+ /// SectionEndDirectiveSuffix - If non-null, the asm printer will close each
+ /// section with the section name and this suffix printed.
+ const char *SectionEndDirectiveSuffix;// Defaults to null.
+
+ /// ConstantPoolSection - This is the section that we SwitchToSection right
+ /// before emitting the constant pool for a function.
+ const char *ConstantPoolSection; // Defaults to "\t.section .rodata\n"
+
+ /// JumpTableDataSection - This is the section that we SwitchToSection right
+ /// before emitting the jump tables for a function when the relocation model
+ /// is not PIC.
+ const char *JumpTableDataSection; // Defaults to "\t.section .rodata\n"
+
+ /// JumpTableTextSection - This is the section that we SwitchToSection right
+ /// before emitting the jump tables for a function when the relocation model
+ /// is PIC.
+ const char *JumpTableTextSection; // Defaults to "\t.text\n"
+
+ /// StaticCtorsSection - This is the directive that is emitted to switch to
+ /// a section to emit the static constructor list.
+ /// Defaults to "\t.section .ctors,\"aw\", at progbits".
+ const char *StaticCtorsSection;
+
+ /// StaticDtorsSection - This is the directive that is emitted to switch to
+ /// a section to emit the static destructor list.
+ /// Defaults to "\t.section .dtors,\"aw\", at progbits".
+ const char *StaticDtorsSection;
+
+ /// FourByteConstantSection, EightByteConstantSection,
+ /// SixteenByteConstantSection - These are special sections where we place
+ /// 4-, 8-, and 16- byte constant literals.
+ const char *FourByteConstantSection;
+ const char *EightByteConstantSection;
+ const char *SixteenByteConstantSection;
+
+ //===--- Global Variable Emission Directives --------------------------===//
+
+ /// SetDirective - This is the name of a directive that can be used to tell
+ /// the assembler to set the value of a variable to some expression.
+ const char *SetDirective; // Defaults to null.
+
+ /// LCOMMDirective - This is the name of a directive (if supported) that can
+ /// be used to efficiently declare a local (internal) block of zero
+ /// initialized data in the .bss/.data section. The syntax expected is:
+ /// \literal <LCOMMDirective> SYMBOLNAME LENGTHINBYTES, ALIGNMENT
+ /// \endliteral
+ const char *LCOMMDirective; // Defaults to null.
+
+ const char *COMMDirective; // Defaults to "\t.comm\t".
+
+ /// COMMDirectiveTakesAlignment - True if COMMDirective take a third
+ /// argument that specifies the alignment of the declaration.
+ bool COMMDirectiveTakesAlignment; // Defaults to true.
+
+ /// HasDotTypeDotSizeDirective - True if the target has .type and .size
+ /// directives, this is true for most ELF targets.
+ bool HasDotTypeDotSizeDirective; // Defaults to true.
+
+ //===--- Dwarf Emission Directives -----------------------------------===//
+
+ /// HasLEB128 - True if target asm supports leb128 directives.
+ ///
+ bool HasLEB128; // Defaults to false.
+
+ /// hasDotLoc - True if target asm supports .loc directives.
+ ///
+ bool HasDotLoc; // Defaults to false.
+
+ /// HasDotFile - True if target asm supports .file directives.
+ ///
+ bool HasDotFile; // Defaults to false.
+
+ /// DwarfAbbrevSection - Section directive for Dwarf abbrev.
+ ///
+ const char *DwarfAbbrevSection; // Defaults to ".debug_abbrev".
+
+ /// DwarfInfoSection - Section directive for Dwarf info.
+ ///
+ const char *DwarfInfoSection; // Defaults to ".debug_info".
+
+ /// DwarfLineSection - Section directive for Dwarf info.
+ ///
+ const char *DwarfLineSection; // Defaults to ".debug_line".
+
+ /// DwarfFrameSection - Section directive for Dwarf info.
+ ///
+ const char *DwarfFrameSection; // Defaults to ".debug_frame".
+
+ /// DwarfPubNamesSection - Section directive for Dwarf info.
+ ///
+ const char *DwarfPubNamesSection; // Defaults to ".debug_pubnames".
+
+ /// DwarfPubTypesSection - Section directive for Dwarf info.
+ ///
+ const char *DwarfPubTypesSection; // Defaults to ".debug_pubtypes".
+
+ /// DwarfStrSection - Section directive for Dwarf info.
+ ///
+ const char *DwarfStrSection; // Defaults to ".debug_str".
+
+ /// DwarfLocSection - Section directive for Dwarf info.
+ ///
+ const char *DwarfLocSection; // Defaults to ".debug_loc".
+
+ /// DwarfARangesSection - Section directive for Dwarf info.
+ ///
+ const char *DwarfARangesSection; // Defaults to ".debug_aranges".
+
+ /// DwarfRangesSection - Section directive for Dwarf info.
+ ///
+ const char *DwarfRangesSection; // Defaults to ".debug_ranges".
+
+ /// DwarfMacInfoSection - Section directive for Dwarf info.
+ ///
+ const char *DwarfMacInfoSection; // Defaults to ".debug_macinfo".
+
+
+ public:
+ TargetAsmInfo();
+
+ //
+ // Accessors.
+ //
+ const char *getTextSection() const {
+ return TextSection;
+ }
+ const char *getDataSection() const {
+ return DataSection;
+ }
+ unsigned getAddressSize() const {
+ return AddressSize;
+ }
+ bool getNeedsSet() const {
+ return NeedsSet;
+ }
+ const char *getCommentString() const {
+ return CommentString;
+ }
+ const char *getGlobalPrefix() const {
+ return GlobalPrefix;
+ }
+ const char *getPrivateGlobalPrefix() const {
+ return PrivateGlobalPrefix;
+ }
+ const char *getGlobalVarAddrPrefix() const {
+ return GlobalVarAddrPrefix;
+ }
+ const char *getGlobalVarAddrSuffix() const {
+ return GlobalVarAddrSuffix;
+ }
+ const char *getFunctionAddrPrefix() const {
+ return FunctionAddrPrefix;
+ }
+ const char *getFunctionAddrSuffix() const {
+ return FunctionAddrSuffix;
+ }
+ const char *getInlineAsmStart() const {
+ return InlineAsmStart;
+ }
+ const char *getInlineAsmEnd() const {
+ return InlineAsmEnd;
+ }
+ const char *getZeroDirective() const {
+ return ZeroDirective;
+ }
+ const char *getZeroDirectiveSuffix() const {
+ return ZeroDirectiveSuffix;
+ }
+ const char *getAsciiDirective() const {
+ return AsciiDirective;
+ }
+ const char *getAscizDirective() const {
+ return AscizDirective;
+ }
+ const char *getData8bitsDirective() const {
+ return Data8bitsDirective;
+ }
+ const char *getData16bitsDirective() const {
+ return Data16bitsDirective;
+ }
+ const char *getData32bitsDirective() const {
+ return Data32bitsDirective;
+ }
+ const char *getData64bitsDirective() const {
+ return Data64bitsDirective;
+ }
+ const char *getAlignDirective() const {
+ return AlignDirective;
+ }
+ bool getAlignmentIsInBytes() const {
+ return AlignmentIsInBytes;
+ }
+ const char *getSwitchToSectionDirective() const {
+ return SwitchToSectionDirective;
+ }
+ const char *getTextSectionStartSuffix() const {
+ return TextSectionStartSuffix;
+ }
+ const char *getDataSectionStartSuffix() const {
+ return DataSectionStartSuffix;
+ }
+ const char *getSectionEndDirectiveSuffix() const {
+ return SectionEndDirectiveSuffix;
+ }
+ const char *getConstantPoolSection() const {
+ return ConstantPoolSection;
+ }
+ const char *getJumpTableDataSection() const {
+ return JumpTableDataSection;
+ }
+ const char *getJumpTableTextSection() const {
+ return JumpTableTextSection;
+ }
+ const char *getStaticCtorsSection() const {
+ return StaticCtorsSection;
+ }
+ const char *getStaticDtorsSection() const {
+ return StaticDtorsSection;
+ }
+ const char *getFourByteConstantSection() const {
+ return FourByteConstantSection;
+ }
+ const char *getEightByteConstantSection() const {
+ return EightByteConstantSection;
+ }
+ const char *getSixteenByteConstantSection() const {
+ return SixteenByteConstantSection;
+ }
+ const char *getSetDirective() const {
+ return SetDirective;
+ }
+ const char *getLCOMMDirective() const {
+ return LCOMMDirective;
+ }
+ const char *getCOMMDirective() const {
+ return COMMDirective;
+ }
+ bool getCOMMDirectiveTakesAlignment() const {
+ return COMMDirectiveTakesAlignment;
+ }
+ bool hasDotTypeDotSizeDirective() const {
+ return HasDotTypeDotSizeDirective;
+ }
+ bool hasLEB128() const {
+ return HasLEB128;
+ }
+ bool hasDotLoc() const {
+ return HasDotLoc;
+ }
+ bool hasDotFile() const {
+ return HasDotFile;
+ }
+ const char *getDwarfAbbrevSection() const {
+ return DwarfAbbrevSection;
+ }
+ const char *getDwarfInfoSection() const {
+ return DwarfInfoSection;
+ }
+ const char *getDwarfLineSection() const {
+ return DwarfLineSection;
+ }
+ const char *getDwarfFrameSection() const {
+ return DwarfFrameSection;
+ }
+ const char *getDwarfPubNamesSection() const {
+ return DwarfPubNamesSection;
+ }
+ const char *getDwarfPubTypesSection() const {
+ return DwarfPubTypesSection;
+ }
+ const char *getDwarfStrSection() const {
+ return DwarfStrSection;
+ }
+ const char *getDwarfLocSection() const {
+ return DwarfLocSection;
+ }
+ const char *getDwarfARangesSection() const {
+ return DwarfARangesSection;
+ }
+ const char *getDwarfRangesSection() const {
+ return DwarfRangesSection;
+ }
+ const char *getDwarfMacInfoSection() const {
+ return DwarfMacInfoSection;
+ }
+ };
+
+ }
+
+ #endif
+
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