X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FCodeGen%2FAsmPrinter%2FDIE.h;h=3b04e206254b728a41ea55c8399d59442b6d973c;hb=4e976457eb2e777dcd515a7b82e62161552a2466;hp=cc3ebbd5d56253bfd1d9631eaefd2b214e70da11;hpb=2df938ad713140c352b2d81b49490e337c018891;p=oota-llvm.git diff --git a/lib/CodeGen/AsmPrinter/DIE.h b/lib/CodeGen/AsmPrinter/DIE.h index cc3ebbd5d56..3b04e206254 100644 --- a/lib/CodeGen/AsmPrinter/DIE.h +++ b/lib/CodeGen/AsmPrinter/DIE.h @@ -18,15 +18,17 @@ #include "llvm/ADT/SmallVector.h" #include "llvm/Support/Compiler.h" #include "llvm/Support/Dwarf.h" +#include "llvm/MC/MCExpr.h" #include namespace llvm { class AsmPrinter; class MCSymbol; + class MCSymbolRefExpr; class raw_ostream; //===--------------------------------------------------------------------===// - /// DIEAbbrevData - Dwarf abbreviation data, describes the one attribute of a + /// DIEAbbrevData - Dwarf abbreviation data, describes one attribute of a /// Dwarf abbreviation. class DIEAbbrevData { /// Attribute - Dwarf attribute code. @@ -75,7 +77,7 @@ namespace llvm { uint16_t getTag() const { return Tag; } unsigned getNumber() const { return Number; } uint16_t getChildrenFlag() const { return ChildrenFlag; } - const SmallVector &getData() const { return Data; } + const SmallVectorImpl &getData() const { return Data; } void setTag(uint16_t T) { Tag = T; } void setChildrenFlag(uint16_t CF) { ChildrenFlag = CF; } void setNumber(unsigned N) { Number = N; } @@ -86,12 +88,6 @@ namespace llvm { Data.push_back(DIEAbbrevData(Attribute, Form)); } - /// AddFirstAttribute - Adds a set of attribute information to the front - /// of the abbreviation. - void AddFirstAttribute(uint16_t Attribute, uint16_t Form) { - Data.insert(Data.begin(), DIEAbbrevData(Attribute, Form)); - } - /// Profile - Used to gather unique data for the abbreviation folding set. /// void Profile(FoldingSetNodeID &ID) const; @@ -108,7 +104,7 @@ namespace llvm { //===--------------------------------------------------------------------===// /// DIE - A structured debug information entry. Has an abbreviation which - /// describes it's organization. + /// describes its organization. class DIEValue; class DIE { @@ -135,12 +131,13 @@ namespace llvm { /// SmallVector Values; +#ifndef NDEBUG // Private data for print() mutable unsigned IndentCount; +#endif public: explicit DIE(unsigned Tag) - : Offset(0), Size(0), Abbrev(Tag, dwarf::DW_CHILDREN_no), Parent(0), - IndentCount(0) {} + : Offset(0), Size(0), Abbrev(Tag, dwarf::DW_CHILDREN_no), Parent(0) {} virtual ~DIE(); // Accessors. @@ -150,11 +147,11 @@ namespace llvm { unsigned getOffset() const { return Offset; } unsigned getSize() const { return Size; } const std::vector &getChildren() const { return Children; } - const SmallVector &getValues() const { return Values; } + const SmallVectorImpl &getValues() const { return Values; } DIE *getParent() const { return Parent; } /// Climb up the parent chain to get the compile unit DIE this DIE belongs /// to. - DIE *getCompileUnit() const; + DIE *getCompileUnit(); void setTag(unsigned Tag) { Abbrev.setTag(Tag); } void setOffset(unsigned O) { Offset = O; } void setSize(unsigned S) { Size = S; } @@ -179,7 +176,7 @@ namespace llvm { } #ifndef NDEBUG - void print(raw_ostream &O, unsigned IncIndent = 0); + void print(raw_ostream &O, unsigned IndentCount = 0) const; void dump(); #endif }; @@ -193,6 +190,7 @@ namespace llvm { enum { isInteger, isString, + isExpr, isLabel, isDelta, isEntry, @@ -218,8 +216,8 @@ namespace llvm { virtual unsigned SizeOf(AsmPrinter *AP, unsigned Form) const = 0; #ifndef NDEBUG - virtual void print(raw_ostream &O) = 0; - void dump(); + virtual void print(raw_ostream &O) const = 0; + void dump() const; #endif }; @@ -261,12 +259,40 @@ namespace llvm { static bool classof(const DIEValue *I) { return I->getType() == isInteger; } #ifndef NDEBUG - virtual void print(raw_ostream &O); + virtual void print(raw_ostream &O) const; #endif }; //===--------------------------------------------------------------------===// - /// DIELabel - A label expression DIE. + /// DIEExpr - An expression DIE. + // + class DIEExpr : public DIEValue { + const MCExpr *Expr; + public: + explicit DIEExpr(const MCExpr *E) : DIEValue(isExpr), Expr(E) {} + + /// EmitValue - Emit expression value. + /// + virtual void EmitValue(AsmPrinter *AP, unsigned Form) const; + + /// getValue - Get MCExpr. + /// + const MCExpr *getValue() const { return Expr; } + + /// SizeOf - Determine size of expression value in bytes. + /// + virtual unsigned SizeOf(AsmPrinter *AP, unsigned Form) const; + + // Implement isa/cast/dyncast. + static bool classof(const DIEValue *E) { return E->getType() == isExpr; } + +#ifndef NDEBUG + virtual void print(raw_ostream &O) const; +#endif + }; + + //===--------------------------------------------------------------------===// + /// DIELabel - A label DIE. // class DIELabel : public DIEValue { const MCSymbol *Label; @@ -279,7 +305,7 @@ namespace llvm { /// getValue - Get MCSymbol. /// - const MCSymbol *getValue() const { return Label; } + const MCSymbol *getValue() const { return Label; } /// SizeOf - Determine size of label value in bytes. /// @@ -289,7 +315,7 @@ namespace llvm { static bool classof(const DIEValue *L) { return L->getType() == isLabel; } #ifndef NDEBUG - virtual void print(raw_ostream &O); + virtual void print(raw_ostream &O) const; #endif }; @@ -315,7 +341,7 @@ namespace llvm { static bool classof(const DIEValue *D) { return D->getType() == isDelta; } #ifndef NDEBUG - virtual void print(raw_ostream &O); + virtual void print(raw_ostream &O) const; #endif }; @@ -326,7 +352,9 @@ namespace llvm { class DIEEntry : public DIEValue { DIE *const Entry; public: - explicit DIEEntry(DIE *E) : DIEValue(isEntry), Entry(E) {} + explicit DIEEntry(DIE *E) : DIEValue(isEntry), Entry(E) { + assert(E && "Cannot construct a DIEEntry with a null DIE"); + } DIE *getEntry() const { return Entry; } @@ -337,14 +365,18 @@ namespace llvm { /// SizeOf - Determine size of debug information entry in bytes. /// virtual unsigned SizeOf(AsmPrinter *AP, unsigned Form) const { - return sizeof(int32_t); + return Form == dwarf::DW_FORM_ref_addr ? getRefAddrSize(AP) : + sizeof(int32_t); } + /// Returns size of a ref_addr entry. + static unsigned getRefAddrSize(AsmPrinter *AP); + // Implement isa/cast/dyncast. static bool classof(const DIEValue *E) { return E->getType() == isEntry; } #ifndef NDEBUG - virtual void print(raw_ostream &O); + virtual void print(raw_ostream &O) const; #endif }; @@ -383,7 +415,7 @@ namespace llvm { static bool classof(const DIEValue *E) { return E->getType() == isBlock; } #ifndef NDEBUG - virtual void print(raw_ostream &O); + virtual void print(raw_ostream &O) const; #endif };