//
//===----------------------------------------------------------------------===//
-#ifndef LLVM_TARGET_ASM_INFO_H
-#define LLVM_TARGET_ASM_INFO_H
+#ifndef LLVM_MC_MCASMINFO_H
+#define LLVM_MC_MCASMINFO_H
-#include "llvm/MC/MachineLocation.h"
#include "llvm/MC/MCDirectives.h"
+#include "llvm/MC/MCDwarf.h"
+#include "llvm/MC/MachineLocation.h"
#include <cassert>
#include <vector>
}
namespace LCOMM {
- enum LCOMMType { None, NoAlignment, ByteAlignment };
+ enum LCOMMType { NoAlignment, ByteAlignment, Log2Alignment };
}
/// MCAsmInfo - This class is intended to be used as a base class for asm
/// Default is 4.
unsigned PointerSize;
+ /// CalleeSaveStackSlotSize - Size of the stack slot reserved for
+ /// callee-saved registers, in bytes.
+ /// Default is same as pointer size.
+ unsigned CalleeSaveStackSlotSize;
+
/// IsLittleEndian - True if target is little endian.
/// Default is true.
bool IsLittleEndian;
/// which is needed to compute the size of an inline asm.
unsigned MaxInstLength; // Defaults to 4.
+ /// MinInstAlignment - Every possible instruction length is a multiple of
+ /// this value. Factored out in .debug_frame and .debug_line.
+ unsigned MinInstAlignment; // Defaults to 1.
+
/// PCSymbol - The symbol used to represent the current PC. Used in PC
/// relative expressions.
const char *PCSymbol; // Defaults to "$".
/// LabelSuffix - This is appended to emitted labels.
const char *LabelSuffix; // Defaults to ":"
+ /// LabelSuffix - This is appended to emitted labels.
+ const char *DebugLabelSuffix; // Defaults to ":"
+
/// GlobalPrefix - If this is set to a non-empty string, it is prepended
/// onto all global symbols. This is often used for "_" or ".".
const char *GlobalPrefix; // Defaults to ""
/// symbol names. This defaults to true.
bool AllowPeriodsInName;
+ /// AllowUTF8 - This is true if the assembler accepts UTF-8 input.
+ // FIXME: Make this a more general encoding setting?
+ bool AllowUTF8;
+
+ /// UseDataRegionDirectives - This is true if data region markers should
+ /// be printed as ".data_region/.end_data_region" directives. If false,
+ /// use "$d/$a" labels instead.
+ bool UseDataRegionDirectives;
+
//===--- Data Emission Directives -------------------------------------===//
/// ZeroDirective - this should be set to the directive used to get some
const char *Data32bitsDirective; // Defaults to "\t.long\t"
const char *Data64bitsDirective; // Defaults to "\t.quad\t"
- /// [Data|Code]Begin - These magic labels are used to marked a region as
- /// data or code, and are used to provide additional information for
- /// correct disassembly on targets that like to mix data and code within
- /// a segment. These labels will be implicitly suffixed by the streamer
- /// to give them unique names.
- const char *DataBegin; // Defaults to "$d."
- const char *CodeBegin; // Defaults to "$a."
- const char *JT8Begin; // Defaults to "$a."
- const char *JT16Begin; // Defaults to "$a."
- const char *JT32Begin; // Defaults to "$a."
- bool SupportsDataRegions;
-
/// GPRel64Directive - if non-null, a directive that is used to emit a word
/// which should be relocated as a 64-bit GP-relative offset, e.g. .gpdword
/// on Mips.
/// convention.
bool HasMicrosoftFastStdCallMangling; // Defaults to false.
+ bool NeedsDwarfSectionOffsetDirective;
+
//===--- Alignment Information ----------------------------------------===//
/// AlignDirective - The directive used to emit round up to an alignment
/// .long a - b
bool HasAggressiveSymbolFolding; // Defaults to true.
- /// LCOMMDirectiveType - Describes if the target supports the .lcomm
- /// directive and whether it has an alignment parameter.
- LCOMM::LCOMMType LCOMMDirectiveType; // Defaults to LCOMM::None.
-
- /// COMMDirectiveAlignmentIsInBytes - True is COMMDirective's optional
+ /// COMMDirectiveAlignmentIsInBytes - True is .comm's and .lcomms optional
/// alignment is to be specified in bytes instead of log2(n).
bool COMMDirectiveAlignmentIsInBytes; // Defaults to true;
+ /// LCOMMDirectiveAlignment - Describes if the .lcomm directive for the
+ /// target supports an alignment argument and how it is interpreted.
+ LCOMM::LCOMMType LCOMMDirectiveAlignmentType; // Defaults to NoAlignment.
+
/// HasDotTypeDotSizeDirective - True if the target has .type and .size
/// directives, this is true for most ELF targets.
bool HasDotTypeDotSizeDirective; // Defaults to true.
/// encode inline subroutine information.
bool DwarfUsesInlineInfoSection; // Defaults to false.
- /// DwarfSectionOffsetDirective - Special section offset directive.
- const char* DwarfSectionOffsetDirective; // Defaults to NULL
-
- /// DwarfRequiresRelocationForSectionOffset - True if we need to produce a
- /// relocation when we want a section offset in dwarf.
- bool DwarfRequiresRelocationForSectionOffset; // Defaults to true;
-
- /// DwarfUsesLabelOffsetDifference - True if Dwarf2 output can
- /// use EmitLabelOffsetDifference.
- bool DwarfUsesLabelOffsetForRanges;
-
- /// DwarfUsesRelocationsForStringPool - True if this Dwarf output must use
- /// relocations to refer to entries in the string pool.
- bool DwarfUsesRelocationsForStringPool;
+ /// DwarfUsesRelocationsAcrossSections - True if Dwarf2 output generally
+ /// uses relocations for references to other .debug_* sections.
+ bool DwarfUsesRelocationsAcrossSections;
/// DwarfRegNumForCFI - True if dwarf register numbers are printed
/// instead of symbolic register names in .cfi_* directives.
bool DwarfRegNumForCFI; // Defaults to false;
- //===--- CBE Asm Translation Table -----------------------------------===//
-
- const char *const *AsmTransCBE; // Defaults to empty
-
//===--- Prologue State ----------------------------------------------===//
- std::vector<MachineMove> InitialFrameState;
+ std::vector<MCCFIInstruction> InitialFrameState;
public:
explicit MCAsmInfo();
virtual ~MCAsmInfo();
// FIXME: move these methods to DwarfPrinter when the JIT stops using them.
- static unsigned getSLEB128Size(int Value);
- static unsigned getULEB128Size(unsigned Value);
+ static unsigned getSLEB128Size(int64_t Value);
+ static unsigned getULEB128Size(uint64_t Value);
/// getPointerSize - Get the pointer size in bytes.
unsigned getPointerSize() const {
return PointerSize;
}
- /// islittleendian - True if the target is little endian.
+ /// getCalleeSaveStackSlotSize - Get the callee-saved register stack slot
+ /// size in bytes.
+ unsigned getCalleeSaveStackSlotSize() const {
+ return CalleeSaveStackSlotSize;
+ }
+
+ /// isLittleEndian - True if the target is little endian.
bool isLittleEndian() const {
return IsLittleEndian;
}
const char *getGPRel64Directive() const { return GPRel64Directive; }
const char *getGPRel32Directive() const { return GPRel32Directive; }
- /// [Code|Data]Begin label name accessors.
- const char *getCodeBeginLabelName() const { return CodeBegin; }
- const char *getDataBeginLabelName() const { return DataBegin; }
- const char *getJumpTable8BeginLabelName() const { return JT8Begin; }
- const char *getJumpTable16BeginLabelName() const { return JT16Begin; }
- const char *getJumpTable32BeginLabelName() const { return JT32Begin; }
- bool getSupportsDataRegions() const { return SupportsDataRegions; }
-
/// getNonexecutableStackSection - Targets can implement this method to
/// specify a section to switch to if the translation unit doesn't have any
/// trampolines that require an executable stack.
return HasMicrosoftFastStdCallMangling;
}
+ bool needsDwarfSectionOffsetDirective() const {
+ return NeedsDwarfSectionOffsetDirective;
+ }
+
// Accessors.
//
bool hasMachoZeroFillDirective() const { return HasMachoZeroFillDirective; }
unsigned getMaxInstLength() const {
return MaxInstLength;
}
+ unsigned getMinInstAlignment() const {
+ return MinInstAlignment;
+ }
const char *getPCSymbol() const {
return PCSymbol;
}
const char *getLabelSuffix() const {
return LabelSuffix;
}
+
+ const char *getDebugLabelSuffix() const {
+ return DebugLabelSuffix;
+ }
+
const char *getGlobalPrefix() const {
return GlobalPrefix;
}
bool doesAllowPeriodsInName() const {
return AllowPeriodsInName;
}
+ bool doesAllowUTF8() const {
+ return AllowUTF8;
+ }
+ bool doesSupportDataRegionDirectives() const {
+ return UseDataRegionDirectives;
+ }
const char *getZeroDirective() const {
return ZeroDirective;
}
bool hasAggressiveSymbolFolding() const {
return HasAggressiveSymbolFolding;
}
- LCOMM::LCOMMType getLCOMMDirectiveType() const {
- return LCOMMDirectiveType;
- }
- bool hasDotTypeDotSizeDirective() const {return HasDotTypeDotSizeDirective;}
bool getCOMMDirectiveAlignmentIsInBytes() const {
return COMMDirectiveAlignmentIsInBytes;
}
+ LCOMM::LCOMMType getLCOMMDirectiveAlignmentType() const {
+ return LCOMMDirectiveAlignmentType;
+ }
+ bool hasDotTypeDotSizeDirective() const {return HasDotTypeDotSizeDirective;}
bool hasSingleParameterDotFile() const { return HasSingleParameterDotFile; }
bool hasNoDeadStrip() const { return HasNoDeadStrip; }
bool hasSymbolResolver() const { return HasSymbolResolver; }
bool doesDwarfUseInlineInfoSection() const {
return DwarfUsesInlineInfoSection;
}
- const char *getDwarfSectionOffsetDirective() const {
- return DwarfSectionOffsetDirective;
- }
- bool doesDwarfRequireRelocationForSectionOffset() const {
- return DwarfRequiresRelocationForSectionOffset;
- }
- bool doesDwarfUseLabelOffsetForRanges() const {
- return DwarfUsesLabelOffsetForRanges;
- }
- bool doesDwarfUseRelocationsForStringPool() const {
- return DwarfUsesRelocationsForStringPool;
+ bool doesDwarfUseRelocationsAcrossSections() const {
+ return DwarfUsesRelocationsAcrossSections;
}
bool useDwarfRegNumForCFI() const {
return DwarfRegNumForCFI;
}
- const char *const *getAsmCBE() const {
- return AsmTransCBE;
- }
- void addInitialFrameState(MCSymbol *label, const MachineLocation &D,
- const MachineLocation &S) {
- InitialFrameState.push_back(MachineMove(label, D, S));
+ void addInitialFrameState(const MCCFIInstruction &Inst) {
+ InitialFrameState.push_back(Inst);
}
- const std::vector<MachineMove> &getInitialFrameState() const {
+
+ const std::vector<MCCFIInstruction> &getInitialFrameState() const {
return InitialFrameState;
}
};
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