mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-25 14:32:53 +00:00
merge of use-diet branch to trunk
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50943 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
parent
4982babf4a
commit
efe65369a7
@ -110,6 +110,10 @@ E: greened@obbligato.org
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D: Miscellaneous bug fixes
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D: Register allocation refactoring
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N: Gabor Greif
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E: ggreif@gmail.com
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D: Improvements for space efficiency
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N: Gordon Henriksen
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E: gordonhenriksen@mac.com
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D: Pluggable GC support
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|
@ -22,6 +22,7 @@
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#include "llvm/Constant.h"
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#include "llvm/Type.h"
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#include "llvm/OperandTraits.h"
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#include "llvm/ADT/APInt.h"
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#include "llvm/ADT/APFloat.h"
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@ -318,7 +319,6 @@ class ConstantArray : public Constant {
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ConstantArray(const ConstantArray &); // DO NOT IMPLEMENT
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protected:
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ConstantArray(const ArrayType *T, const std::vector<Constant*> &Val);
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~ConstantArray();
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public:
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/// get() - Static factory methods - Return objects of the specified value
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static Constant *get(const ArrayType *T, const std::vector<Constant*> &);
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@ -336,6 +336,9 @@ public:
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/// null termination.
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static Constant *get(const std::string &Initializer, bool AddNull = true);
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/// Transparently provide more efficient getOperand methods.
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DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Constant);
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/// getType - Specialize the getType() method to always return an ArrayType,
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/// which reduces the amount of casting needed in parts of the compiler.
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///
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@ -374,6 +377,11 @@ public:
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}
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};
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template <>
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struct OperandTraits<ConstantArray> : VariadicOperandTraits<> {
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};
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DEFINE_TRANSPARENT_CASTED_OPERAND_ACCESSORS(ConstantArray, Constant)
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//===----------------------------------------------------------------------===//
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// ConstantStruct - Constant Struct Declarations
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@ -384,7 +392,6 @@ class ConstantStruct : public Constant {
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ConstantStruct(const ConstantStruct &); // DO NOT IMPLEMENT
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protected:
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ConstantStruct(const StructType *T, const std::vector<Constant*> &Val);
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~ConstantStruct();
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public:
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/// get() - Static factory methods - Return objects of the specified value
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///
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@ -396,6 +403,9 @@ public:
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return get(std::vector<Constant*>(Vals, Vals+NumVals), Packed);
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}
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/// Transparently provide more efficient getOperand methods.
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DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Constant);
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/// getType() specialization - Reduce amount of casting...
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///
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inline const StructType *getType() const {
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@ -419,6 +429,12 @@ public:
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}
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};
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template <>
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struct OperandTraits<ConstantStruct> : VariadicOperandTraits<> {
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};
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DEFINE_TRANSPARENT_CASTED_OPERAND_ACCESSORS(ConstantStruct, Constant)
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//===----------------------------------------------------------------------===//
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/// ConstantVector - Constant Vector Declarations
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///
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@ -428,7 +444,6 @@ class ConstantVector : public Constant {
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ConstantVector(const ConstantVector &); // DO NOT IMPLEMENT
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protected:
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ConstantVector(const VectorType *T, const std::vector<Constant*> &Val);
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~ConstantVector();
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public:
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/// get() - Static factory methods - Return objects of the specified value
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static Constant *get(const VectorType *T, const std::vector<Constant*> &);
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@ -438,6 +453,9 @@ public:
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return get(std::vector<Constant*>(Vals, Vals+NumVals));
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}
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/// Transparently provide more efficient getOperand methods.
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DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Constant);
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/// getType - Specialize the getType() method to always return a VectorType,
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/// which reduces the amount of casting needed in parts of the compiler.
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///
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@ -475,6 +493,12 @@ public:
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}
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};
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template <>
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struct OperandTraits<ConstantVector> : VariadicOperandTraits<> {
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};
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DEFINE_TRANSPARENT_CASTED_OPERAND_ACCESSORS(ConstantVector, Constant)
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//===----------------------------------------------------------------------===//
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/// ConstantPointerNull - a constant pointer value that points to null
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///
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@ -573,6 +597,9 @@ public:
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static Constant *getIntToPtr(Constant *C, const Type *Ty);
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static Constant *getBitCast (Constant *C, const Type *Ty);
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/// Transparently provide more efficient getOperand methods.
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DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Constant);
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// @brief Convenience function for getting one of the casting operations
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// using a CastOps opcode.
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static Constant *getCast(
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@ -709,13 +736,13 @@ public:
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virtual void destroyConstant();
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virtual void replaceUsesOfWithOnConstant(Value *From, Value *To, Use *U);
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/// Override methods to provide more type information...
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/* /// Override methods to provide more type information...
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inline Constant *getOperand(unsigned i) {
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return cast<Constant>(User::getOperand(i));
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}
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inline Constant *getOperand(unsigned i) const {
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return const_cast<Constant*>(cast<Constant>(User::getOperand(i)));
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}
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}*/
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/// Methods for support type inquiry through isa, cast, and dyn_cast:
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@ -725,6 +752,11 @@ public:
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}
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};
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template <>
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struct OperandTraits<ConstantExpr> : VariadicOperandTraits<1> {
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};
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DEFINE_TRANSPARENT_CASTED_OPERAND_ACCESSORS(ConstantExpr, Constant)
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//===----------------------------------------------------------------------===//
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/// UndefValue - 'undef' values are things that do not have specified contents.
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@ -16,6 +16,7 @@
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#define LLVM_GLOBAL_ALIAS_H
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#include "llvm/GlobalValue.h"
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#include "llvm/OperandTraits.h"
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namespace llvm {
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@ -42,17 +43,19 @@ class GlobalAlias : public GlobalValue {
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GlobalAlias *getPrev() { return Prev; }
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const GlobalAlias *getPrev() const { return Prev; }
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Use Aliasee;
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public:
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// allocate space for exactly zero operands
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// allocate space for exactly one operand
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void *operator new(size_t s) {
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return User::operator new(s, 0);
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return User::operator new(s, 1);
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}
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/// GlobalAlias ctor - If a parent module is specified, the alias is
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/// automatically inserted into the end of the specified module's alias list.
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GlobalAlias(const Type *Ty, LinkageTypes Linkage, const std::string &Name = "",
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Constant* Aliasee = 0, Module *Parent = 0);
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/// Provide fast operand accessors
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DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
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/// isDeclaration - Is this global variable lacking an initializer? If so,
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/// the global variable is defined in some other translation unit, and is thus
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/// only a declaration here.
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@ -95,6 +98,12 @@ public:
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}
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};
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template <>
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struct OperandTraits<GlobalAlias> : FixedNumOperandTraits<1> {
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};
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DEFINE_TRANSPARENT_OPERAND_ACCESSORS(GlobalAlias, Value)
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} // End llvm namespace
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#endif
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@ -21,6 +21,7 @@
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#define LLVM_GLOBAL_VARIABLE_H
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#include "llvm/GlobalValue.h"
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#include "llvm/OperandTraits.h"
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namespace llvm {
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@ -44,26 +45,32 @@ class GlobalVariable : public GlobalValue {
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bool isConstantGlobal : 1; // Is this a global constant?
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bool isThreadLocalSymbol : 1; // Is this symbol "Thread Local"?
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Use Initializer;
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public:
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// allocate space for exactly zero operands
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// allocate space for exactly one operand
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void *operator new(size_t s) {
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return User::operator new(s, 0);
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return User::operator new(s, 1);
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}
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/// GlobalVariable ctor - If a parent module is specified, the global is
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/// automatically inserted into the end of the specified modules global list.
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GlobalVariable(const Type *Ty, bool isConstant, LinkageTypes Linkage,
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Constant *Initializer = 0, const std::string &Name = "",
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Module *Parent = 0, bool ThreadLocal = false,
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Module *Parent = 0, bool ThreadLocal = false,
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unsigned AddressSpace = 0);
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/// GlobalVariable ctor - This creates a global and inserts it before the
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/// specified other global.
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GlobalVariable(const Type *Ty, bool isConstant, LinkageTypes Linkage,
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Constant *Initializer, const std::string &Name,
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GlobalVariable *InsertBefore, bool ThreadLocal = false,
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GlobalVariable *InsertBefore, bool ThreadLocal = false,
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unsigned AddressSpace = 0);
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~GlobalVariable() {
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NumOperands = 1; // FIXME: needed by operator delete
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}
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/// Provide fast operand accessors
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DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
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/// isDeclaration - Is this global variable lacking an initializer? If so,
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/// the global variable is defined in some other translation unit, and is thus
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/// only a declaration here.
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@ -79,24 +86,24 @@ public:
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/// illegal to call this method if the global is external, because we cannot
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/// tell what the value is initialized to!
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///
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inline Constant *getInitializer() const {
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inline /*const FIXME*/ Constant *getInitializer() const {
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assert(hasInitializer() && "GV doesn't have initializer!");
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return reinterpret_cast<Constant*>(Initializer.get());
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return static_cast<Constant*>(Op<0>().get());
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}
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inline Constant *getInitializer() {
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assert(hasInitializer() && "GV doesn't have initializer!");
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return reinterpret_cast<Constant*>(Initializer.get());
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return static_cast<Constant*>(Op<0>().get());
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}
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inline void setInitializer(Constant *CPV) {
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if (CPV == 0) {
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if (hasInitializer()) {
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Initializer.set(0);
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Op<0>().set(0);
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NumOperands = 0;
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}
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} else {
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if (!hasInitializer())
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NumOperands = 1;
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Initializer.set(CPV);
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Op<0>().set(CPV);
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}
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}
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@ -141,6 +148,12 @@ private:
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const GlobalVariable *getPrev() const { return Prev; }
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};
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template <>
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struct OperandTraits<GlobalVariable> : OptionalOperandTraits<> {
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};
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DEFINE_TRANSPARENT_OPERAND_ACCESSORS(GlobalVariable, Value)
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} // End llvm namespace
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#endif
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@ -17,6 +17,7 @@
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#define LLVM_INSTRUCTION_TYPES_H
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#include "llvm/Instruction.h"
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#include "llvm/OperandTraits.h"
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namespace llvm {
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@ -78,22 +79,22 @@ public:
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}
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};
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//===----------------------------------------------------------------------===//
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// UnaryInstruction Class
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//===----------------------------------------------------------------------===//
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class UnaryInstruction : public Instruction {
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void *operator new(size_t, unsigned); // Do not implement
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Use Op;
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// avoiding warning: 'this' : used in base member initializer list
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UnaryInstruction* this_() { return this; }
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protected:
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UnaryInstruction(const Type *Ty, unsigned iType, Value *V, Instruction *IB =0)
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: Instruction(Ty, iType, &Op, 1, IB), Op(V, this_()) {
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UnaryInstruction(const Type *Ty, unsigned iType, Value *V, Instruction *IB = 0)
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: Instruction(Ty, iType, &Op<0>(), 1, IB) {
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Op<0>() = V;
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}
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UnaryInstruction(const Type *Ty, unsigned iType, Value *V, BasicBlock *IAE)
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: Instruction(Ty, iType, &Op, 1, IAE), Op(V, this_()) {
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: Instruction(Ty, iType, &Op<0>(), 1, IAE) {
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Op<0>() = V;
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}
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public:
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// allocate space for exactly one operand
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@ -104,16 +105,8 @@ public:
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// Out of line virtual method, so the vtable, etc has a home.
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~UnaryInstruction();
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||||
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||||
// Transparently provide more efficient getOperand methods.
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Value *getOperand(unsigned i) const {
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assert(i == 0 && "getOperand() out of range!");
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||||
return Op;
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||||
}
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||||
void setOperand(unsigned i, Value *Val) {
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assert(i == 0 && "setOperand() out of range!");
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||||
Op = Val;
|
||||
}
|
||||
unsigned getNumOperands() const { return 1; }
|
||||
/// Transparently provide more efficient getOperand methods.
|
||||
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
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|
||||
// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const UnaryInstruction *) { return true; }
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||||
@ -130,13 +123,18 @@ public:
|
||||
}
|
||||
};
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||||
|
||||
template <>
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||||
struct OperandTraits<UnaryInstruction> : FixedNumOperandTraits<1> {
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||||
};
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||||
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DEFINE_TRANSPARENT_OPERAND_ACCESSORS(UnaryInstruction, Value)
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||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// BinaryOperator Class
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//===----------------------------------------------------------------------===//
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||||
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||||
class BinaryOperator : public Instruction {
|
||||
void *operator new(size_t, unsigned); // Do not implement
|
||||
Use Ops[2];
|
||||
protected:
|
||||
void init(BinaryOps iType);
|
||||
BinaryOperator(BinaryOps iType, Value *S1, Value *S2, const Type *Ty,
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||||
@ -150,15 +148,7 @@ public:
|
||||
}
|
||||
|
||||
/// Transparently provide more efficient getOperand methods.
|
||||
Value *getOperand(unsigned i) const {
|
||||
assert(i < 2 && "getOperand() out of range!");
|
||||
return Ops[i];
|
||||
}
|
||||
void setOperand(unsigned i, Value *Val) {
|
||||
assert(i < 2 && "setOperand() out of range!");
|
||||
Ops[i] = Val;
|
||||
}
|
||||
unsigned getNumOperands() const { return 2; }
|
||||
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
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||||
|
||||
/// create() - Construct a binary instruction, given the opcode and the two
|
||||
/// operands. Optionally (if InstBefore is specified) insert the instruction
|
||||
@ -251,6 +241,12 @@ public:
|
||||
}
|
||||
};
|
||||
|
||||
template <>
|
||||
struct OperandTraits<BinaryOperator> : FixedNumOperandTraits<2> {
|
||||
};
|
||||
|
||||
DEFINE_TRANSPARENT_OPERAND_ACCESSORS(BinaryOperator, Value)
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// CastInst Class
|
||||
//===----------------------------------------------------------------------===//
|
||||
@ -497,6 +493,7 @@ public:
|
||||
|
||||
/// This class is the base class for the comparison instructions.
|
||||
/// @brief Abstract base class of comparison instructions.
|
||||
// FIXME: why not derive from BinaryOperator?
|
||||
class CmpInst: public Instruction {
|
||||
void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
|
||||
CmpInst(); // do not implement
|
||||
@ -507,8 +504,6 @@ protected:
|
||||
CmpInst(Instruction::OtherOps op, unsigned short pred, Value *LHS, Value *RHS,
|
||||
const std::string &Name, BasicBlock *InsertAtEnd);
|
||||
|
||||
Use Ops[2]; // CmpInst instructions always have 2 operands, optimize
|
||||
|
||||
public:
|
||||
// allocate space for exactly two operands
|
||||
void *operator new(size_t s) {
|
||||
@ -548,17 +543,7 @@ public:
|
||||
}
|
||||
|
||||
/// @brief Provide more efficient getOperand methods.
|
||||
Value *getOperand(unsigned i) const {
|
||||
assert(i < 2 && "getOperand() out of range!");
|
||||
return Ops[i];
|
||||
}
|
||||
void setOperand(unsigned i, Value *Val) {
|
||||
assert(i < 2 && "setOperand() out of range!");
|
||||
Ops[i] = Val;
|
||||
}
|
||||
|
||||
/// @brief CmpInst instructions always have 2 operands.
|
||||
unsigned getNumOperands() const { return 2; }
|
||||
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
|
||||
|
||||
/// This is just a convenience that dispatches to the subclasses.
|
||||
/// @brief Swap the operands and adjust predicate accordingly to retain
|
||||
@ -598,6 +583,14 @@ public:
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
// FIXME: these are redundant if CmpInst < BinaryOperator
|
||||
template <>
|
||||
struct OperandTraits<CmpInst> : FixedNumOperandTraits<2> {
|
||||
};
|
||||
|
||||
DEFINE_TRANSPARENT_OPERAND_ACCESSORS(CmpInst, Value)
|
||||
|
||||
} // End llvm namespace
|
||||
|
||||
#endif
|
||||
|
@ -20,7 +20,6 @@
|
||||
namespace llvm {
|
||||
|
||||
struct AssemblyAnnotationWriter;
|
||||
class BinaryOperator;
|
||||
|
||||
template<typename ValueSubClass, typename ItemParentClass>
|
||||
class SymbolTableListTraits;
|
||||
|
File diff suppressed because it is too large
Load Diff
163
include/llvm/OperandTraits.h
Normal file
163
include/llvm/OperandTraits.h
Normal file
@ -0,0 +1,163 @@
|
||||
//===-- llvm/OperandTraits.h - OperandTraits class definition ---------------------*- C++ -*-===//
|
||||
//
|
||||
// The LLVM Compiler Infrastructure
|
||||
//
|
||||
// This file is distributed under the University of Illinois Open Source
|
||||
// License. See LICENSE.TXT for details.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// This file defines the traits classes that are handy for enforcing the correct
|
||||
// layout of various User subclasses. It also provides the means for accessing
|
||||
// the operands in the most efficient manner.
|
||||
//
|
||||
|
||||
#ifndef LLVM_OPERAND_TRAITS_H
|
||||
#define LLVM_OPERAND_TRAITS_H
|
||||
|
||||
#include "llvm/User.h"
|
||||
|
||||
namespace llvm {
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// FixedNumOperands Trait Class
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
template <unsigned ARITY>
|
||||
struct FixedNumOperandTraits {
|
||||
static Use *op_begin(User* U) {
|
||||
return reinterpret_cast<Use*>(U) - ARITY;
|
||||
}
|
||||
static Use *op_end(User* U) {
|
||||
return reinterpret_cast<Use*>(U);
|
||||
}
|
||||
static unsigned operands(const User*) {
|
||||
return ARITY;
|
||||
}
|
||||
struct prefix {
|
||||
Use Ops[ARITY];
|
||||
prefix(); // DO NOT IMPLEMENT
|
||||
};
|
||||
template <class U>
|
||||
struct Layout {
|
||||
struct overlay : prefix, U {
|
||||
overlay(); // DO NOT IMPLEMENT
|
||||
};
|
||||
};
|
||||
static inline void *allocate(unsigned); // FIXME
|
||||
};
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// OptionalOperands Trait Class
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
template <unsigned ARITY = 1>
|
||||
struct OptionalOperandTraits : FixedNumOperandTraits<ARITY> {
|
||||
static unsigned operands(const User *U) {
|
||||
return U->getNumOperands();
|
||||
}
|
||||
};
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// VariadicOperand Trait Class
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
template <unsigned MINARITY = 0>
|
||||
struct VariadicOperandTraits {
|
||||
static Use *op_begin(User* U) {
|
||||
return reinterpret_cast<Use*>(U) - U->getNumOperands();
|
||||
}
|
||||
static Use *op_end(User* U) {
|
||||
return reinterpret_cast<Use*>(U);
|
||||
}
|
||||
static unsigned operands(const User *U) {
|
||||
return U->getNumOperands();
|
||||
}
|
||||
static inline void *allocate(unsigned); // FIXME
|
||||
};
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// HungoffOperand Trait Class
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
template <unsigned MINARITY = 1>
|
||||
struct HungoffOperandTraits {
|
||||
static Use *op_begin(User* U) {
|
||||
return U->OperandList;
|
||||
}
|
||||
static Use *op_end(User* U) {
|
||||
return U->OperandList + U->getNumOperands();
|
||||
}
|
||||
static unsigned operands(const User *U) {
|
||||
return U->getNumOperands();
|
||||
}
|
||||
static inline void *allocate(unsigned); // FIXME
|
||||
};
|
||||
|
||||
/// Macro for generating in-class operand accessor declarations.
|
||||
/// It should only be called in the public section of the interface.
|
||||
///
|
||||
#define DECLARE_TRANSPARENT_OPERAND_ACCESSORS(VALUECLASS) \
|
||||
public: \
|
||||
inline VALUECLASS *getOperand(unsigned) const; \
|
||||
inline void setOperand(unsigned, VALUECLASS*); \
|
||||
protected: \
|
||||
template <unsigned> inline Use &Op(); \
|
||||
template <unsigned> inline const Use &Op() const; \
|
||||
public: \
|
||||
inline unsigned getNumOperands() const
|
||||
|
||||
/// Macro for generating out-of-class operand accessor definitions
|
||||
#define DEFINE_TRANSPARENT_OPERAND_ACCESSORS(CLASS, VALUECLASS) \
|
||||
VALUECLASS *CLASS::getOperand(unsigned i_nocapture) const { \
|
||||
assert(i_nocapture < OperandTraits<CLASS>::operands(this) \
|
||||
&& "getOperand() out of range!"); \
|
||||
return static_cast<VALUECLASS*>( \
|
||||
OperandTraits<CLASS>::op_begin(const_cast<CLASS*>(this))[i_nocapture]); \
|
||||
} \
|
||||
void CLASS::setOperand(unsigned i_nocapture, VALUECLASS *Val_nocapture) { \
|
||||
assert(i_nocapture < OperandTraits<CLASS>::operands(this) \
|
||||
&& "setOperand() out of range!"); \
|
||||
OperandTraits<CLASS>::op_begin(this)[i_nocapture] = Val_nocapture; \
|
||||
} \
|
||||
unsigned CLASS::getNumOperands() const { \
|
||||
return OperandTraits<CLASS>::operands(this); \
|
||||
} \
|
||||
template <unsigned Idx_nocapture> Use &CLASS::Op() { \
|
||||
return OperandTraits<CLASS>::op_begin(this)[Idx_nocapture]; \
|
||||
} \
|
||||
template <unsigned Idx_nocapture> const Use &CLASS::Op() const { \
|
||||
return OperandTraits<CLASS>::op_begin( \
|
||||
const_cast<CLASS*>(this))[Idx_nocapture]; \
|
||||
}
|
||||
|
||||
|
||||
/// Macro for generating out-of-class operand accessor
|
||||
/// definitions with casted result
|
||||
#define DEFINE_TRANSPARENT_CASTED_OPERAND_ACCESSORS(CLASS, VALUECLASS) \
|
||||
VALUECLASS *CLASS::getOperand(unsigned i_nocapture) const { \
|
||||
assert(i_nocapture < OperandTraits<CLASS>::operands(this) \
|
||||
&& "getOperand() out of range!"); \
|
||||
return cast<VALUECLASS>( \
|
||||
OperandTraits<CLASS>::op_begin(const_cast<CLASS*>(this))[i_nocapture]); \
|
||||
} \
|
||||
void CLASS::setOperand(unsigned i_nocapture, VALUECLASS *Val_nocapture) { \
|
||||
assert(i_nocapture < OperandTraits<CLASS>::operands(this) \
|
||||
&& "setOperand() out of range!"); \
|
||||
OperandTraits<CLASS>::op_begin(this)[i_nocapture] = Val_nocapture; \
|
||||
} \
|
||||
unsigned CLASS::getNumOperands() const { \
|
||||
return OperandTraits<CLASS>::operands(this); \
|
||||
} \
|
||||
template <unsigned Idx_nocapture> Use &CLASS::Op() { \
|
||||
return OperandTraits<CLASS>::op_begin(this)[Idx_nocapture]; \
|
||||
} \
|
||||
template <unsigned Idx_nocapture> const Use &CLASS::Op() const { \
|
||||
return OperandTraits<CLASS>::op_begin( \
|
||||
const_cast<CLASS*>(this))[Idx_nocapture]; \
|
||||
}
|
||||
|
||||
|
||||
} // End llvm namespace
|
||||
|
||||
#endif
|
@ -25,6 +25,40 @@ class Value;
|
||||
class User;
|
||||
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Generic Tagging Functions
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
/// Tag - generic tag type for (at least 32 bit) pointers
|
||||
enum Tag { noTag, tagOne, tagTwo, tagThree };
|
||||
|
||||
/// addTag - insert tag bits into an (untagged) pointer
|
||||
template <typename T, typename TAG>
|
||||
inline T *addTag(const T *P, TAG Tag) {
|
||||
return reinterpret_cast<T*>(ptrdiff_t(P) | Tag);
|
||||
}
|
||||
|
||||
/// stripTag - remove tag bits from a pointer,
|
||||
/// making it dereferencable
|
||||
template <ptrdiff_t MASK, typename T>
|
||||
inline T *stripTag(const T *P) {
|
||||
return reinterpret_cast<T*>(ptrdiff_t(P) & ~MASK);
|
||||
}
|
||||
|
||||
/// extractTag - extract tag bits from a pointer
|
||||
template <typename TAG, TAG MASK, typename T>
|
||||
inline TAG extractTag(const T *P) {
|
||||
return TAG(ptrdiff_t(P) & MASK);
|
||||
}
|
||||
|
||||
/// transferTag - transfer tag bits from a pointer,
|
||||
/// to an untagged pointer
|
||||
template <ptrdiff_t MASK, typename T>
|
||||
inline T *transferTag(const T *From, const T *To) {
|
||||
return reinterpret_cast<T*>((ptrdiff_t(From) & MASK) | ptrdiff_t(To));
|
||||
}
|
||||
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Use Class
|
||||
//===----------------------------------------------------------------------===//
|
||||
@ -35,20 +69,36 @@ class Use {
|
||||
public:
|
||||
inline void init(Value *V, User *U);
|
||||
|
||||
Use(Value *V, User *U) { init(V, U); }
|
||||
Use(const Use &U) { init(U.Val, U.U); }
|
||||
private:
|
||||
/// Allow std::swap some intimacy
|
||||
template <typename U> friend void std::swap(U&, U&);
|
||||
|
||||
/// Copy ctor - Only for std::swap
|
||||
Use(const Use &U) { init(U.get(), 0); }
|
||||
|
||||
/// Destructor - Only for zap() and std::swap
|
||||
inline ~Use() {
|
||||
if (Val) removeFromList();
|
||||
if (get()) removeFromList();
|
||||
}
|
||||
|
||||
/// Default ctor - This leaves the Use completely unitialized. The only thing
|
||||
/// Default ctor - This leaves the Use completely uninitialized. The only thing
|
||||
/// that is valid to do with this use is to call the "init" method.
|
||||
inline Use() : Val(0) {}
|
||||
|
||||
inline Use() {}
|
||||
enum PrevPtrTag { zeroDigitTag = noTag
|
||||
, oneDigitTag = tagOne
|
||||
, stopTag = tagTwo
|
||||
, fullStopTag = tagThree };
|
||||
|
||||
public:
|
||||
|
||||
|
||||
operator Value*() const { return Val; }
|
||||
Value *get() const { return Val; }
|
||||
User *getUser() const { return U; }
|
||||
User *getUser() const;
|
||||
const Use* getImpliedUser() const;
|
||||
static Use *initTags(Use *Start, Use *Stop, ptrdiff_t Done = 0);
|
||||
static void zap(Use *Start, const Use *Stop, bool del = false);
|
||||
|
||||
inline void set(Value *Val);
|
||||
|
||||
@ -57,7 +107,7 @@ public:
|
||||
return RHS;
|
||||
}
|
||||
const Use &operator=(const Use &RHS) {
|
||||
set(RHS.Val);
|
||||
set(RHS.get());
|
||||
return *this;
|
||||
}
|
||||
|
||||
@ -66,19 +116,22 @@ public:
|
||||
|
||||
Use *getNext() const { return Next; }
|
||||
private:
|
||||
Use *Next, **Prev;
|
||||
Value *Val;
|
||||
User *U;
|
||||
Use *Next, **Prev;
|
||||
|
||||
void setPrev(Use **NewPrev) {
|
||||
Prev = transferTag<fullStopTag>(Prev, NewPrev);
|
||||
}
|
||||
void addToList(Use **List) {
|
||||
Next = *List;
|
||||
if (Next) Next->Prev = &Next;
|
||||
Prev = List;
|
||||
if (Next) Next->setPrev(&Next);
|
||||
setPrev(List);
|
||||
*List = this;
|
||||
}
|
||||
void removeFromList() {
|
||||
*Prev = Next;
|
||||
if (Next) Next->Prev = Prev;
|
||||
Use **StrippedPrev = stripTag<fullStopTag>(Prev);
|
||||
*StrippedPrev = Next;
|
||||
if (Next) Next->setPrev(StrippedPrev);
|
||||
}
|
||||
|
||||
friend class Value;
|
||||
@ -138,7 +191,7 @@ public:
|
||||
|
||||
// Retrieve a reference to the current User
|
||||
UserTy *operator*() const {
|
||||
assert(U && "Cannot increment end iterator!");
|
||||
assert(U && "Cannot dereference end iterator!");
|
||||
return U->getUser();
|
||||
}
|
||||
|
||||
|
@ -23,15 +23,203 @@
|
||||
|
||||
namespace llvm {
|
||||
|
||||
/*==============================================================================
|
||||
|
||||
|
||||
-----------------------------------------------------------------
|
||||
--- Interaction and relationship between User and Use objects ---
|
||||
-----------------------------------------------------------------
|
||||
|
||||
|
||||
A subclass of User can choose between incorporating its Use objects
|
||||
or refer to them out-of-line by means of a pointer. A mixed variant
|
||||
(some Uses inline others hung off) is impractical and breaks the invariant
|
||||
that the Use objects belonging to the same User form a contiguous array.
|
||||
|
||||
We have 2 different layouts in the User (sub)classes:
|
||||
|
||||
Layout a)
|
||||
The Use object(s) are inside (resp. at fixed offset) of the User
|
||||
object and there are a fixed number of them.
|
||||
|
||||
Layout b)
|
||||
The Use object(s) are referenced by a pointer to an
|
||||
array from the User object and there may be a variable
|
||||
number of them.
|
||||
|
||||
Initially each layout will possess a direct pointer to the
|
||||
start of the array of Uses. Though not mandatory for layout a),
|
||||
we stick to this redundancy for the sake of simplicity.
|
||||
The User object will also store the number of Use objects it
|
||||
has. (Theoretically this information can also be calculated
|
||||
given the scheme presented below.)
|
||||
|
||||
Special forms of allocation operators (operator new)
|
||||
will enforce the following memory layouts:
|
||||
|
||||
|
||||
# Layout a) will be modelled by prepending the User object
|
||||
# by the Use[] array.
|
||||
#
|
||||
# ...---.---.---.---.-------...
|
||||
# | P | P | P | P | User
|
||||
# '''---'---'---'---'-------'''
|
||||
|
||||
|
||||
# Layout b) will be modelled by pointing at the Use[] array.
|
||||
#
|
||||
# .-------...
|
||||
# | User
|
||||
# '-------'''
|
||||
# |
|
||||
# v
|
||||
# .---.---.---.---...
|
||||
# | P | P | P | P |
|
||||
# '---'---'---'---'''
|
||||
|
||||
(In the above figures 'P' stands for the Use** that
|
||||
is stored in each Use object in the member Use::Prev)
|
||||
|
||||
|
||||
Since the Use objects will be deprived of the direct pointer to
|
||||
their User objects, there must be a fast and exact method to
|
||||
recover it. This is accomplished by the following scheme:
|
||||
|
||||
A bit-encoding in the 2 LSBits of the Use::Prev will allow to find the
|
||||
start of the User object:
|
||||
|
||||
00 --> binary digit 0
|
||||
01 --> binary digit 1
|
||||
10 --> stop and calc (s)
|
||||
11 --> full stop (S)
|
||||
|
||||
Given a Use*, all we have to do is to walk till we get
|
||||
a stop and we either have a User immediately behind or
|
||||
we have to walk to the next stop picking up digits
|
||||
and calculating the offset:
|
||||
|
||||
.---.---.---.---.---.---.---.---.---.---.---.---.---.---.---.---.----------------
|
||||
| 1 | s | 1 | 0 | 1 | 0 | s | 1 | 1 | 0 | s | 1 | 1 | s | 1 | S | User (or User*)
|
||||
'---'---'---'---'---'---'---'---'---'---'---'---'---'---'---'---'----------------
|
||||
|+15 |+10 |+6 |+3 |+1
|
||||
| | | | |__>
|
||||
| | | |__________>
|
||||
| | |______________________>
|
||||
| |______________________________________>
|
||||
|__________________________________________________________>
|
||||
|
||||
|
||||
Only the significant number of bits need to be stored between the
|
||||
stops, so that the worst case is 20 memory accesses when there are
|
||||
1000 Use objects.
|
||||
|
||||
The following literate Haskell fragment demonstrates the concept:
|
||||
|
||||
> import Test.QuickCheck
|
||||
>
|
||||
> digits :: Int -> [Char] -> [Char]
|
||||
> digits 0 acc = '0' : acc
|
||||
> digits 1 acc = '1' : acc
|
||||
> digits n acc = digits (n `div` 2) $ digits (n `mod` 2) acc
|
||||
>
|
||||
> dist :: Int -> [Char] -> [Char]
|
||||
> dist 0 [] = ['S']
|
||||
> dist 0 acc = acc
|
||||
> dist 1 acc = let r = dist 0 acc in 's' : digits (length r) r
|
||||
> dist n acc = dist (n - 1) $ dist 1 acc
|
||||
>
|
||||
> takeLast n ss = reverse $ take n $ reverse ss
|
||||
>
|
||||
> test = takeLast 40 $ dist 20 []
|
||||
>
|
||||
|
||||
Printing <test> gives: "1s100000s11010s10100s1111s1010s110s11s1S"
|
||||
|
||||
The reverse algorithm computes the
|
||||
length of the string just by examining
|
||||
a certain prefix:
|
||||
|
||||
> pref :: [Char] -> Int
|
||||
> pref "S" = 1
|
||||
> pref ('s':'1':rest) = decode 2 1 rest
|
||||
> pref (_:rest) = 1 + pref rest
|
||||
>
|
||||
> decode walk acc ('0':rest) = decode (walk + 1) (acc * 2) rest
|
||||
> decode walk acc ('1':rest) = decode (walk + 1) (acc * 2 + 1) rest
|
||||
> decode walk acc _ = walk + acc
|
||||
>
|
||||
|
||||
Now, as expected, printing <pref test> gives 40.
|
||||
|
||||
We can quickCheck this with following property:
|
||||
|
||||
> testcase = dist 2000 []
|
||||
> testcaseLength = length testcase
|
||||
>
|
||||
> identityProp n = n > 0 && n <= testcaseLength ==> length arr == pref arr
|
||||
> where arr = takeLast n testcase
|
||||
|
||||
As expected <quickCheck identityProp> gives:
|
||||
|
||||
*Main> quickCheck identityProp
|
||||
OK, passed 100 tests.
|
||||
|
||||
Let's be a bit more exhaustive:
|
||||
|
||||
>
|
||||
> deepCheck p = check (defaultConfig { configMaxTest = 500 }) p
|
||||
>
|
||||
|
||||
And here is the result of <deepCheck identityProp>:
|
||||
|
||||
*Main> deepCheck identityProp
|
||||
OK, passed 500 tests.
|
||||
|
||||
|
||||
To maintain the invariant that the 2 LSBits of each Use** in Use
|
||||
never change after being set up, setters of Use::Prev must re-tag the
|
||||
new Use** on every modification. Accordingly getters must strip the
|
||||
tag bits.
|
||||
|
||||
For layout b) instead of the User we will find a pointer (User* with LSBit set).
|
||||
Following this pointer brings us to the User. A portable trick will ensure
|
||||
that the first bytes of User (if interpreted as a pointer) will never have
|
||||
the LSBit set.
|
||||
|
||||
==============================================================================*/
|
||||
|
||||
/// OperandTraits - Compile-time customization of
|
||||
/// operand-related allocators and accessors
|
||||
/// for use of the User class
|
||||
template <class>
|
||||
struct OperandTraits;
|
||||
|
||||
class User;
|
||||
|
||||
/// OperandTraits<User> - specialization to User
|
||||
template <>
|
||||
struct OperandTraits<User> {
|
||||
static inline Use *op_begin(User*);
|
||||
static inline Use *op_end(User*);
|
||||
static inline unsigned operands(const User*);
|
||||
template <class U>
|
||||
struct Layout {
|
||||
typedef U overlay;
|
||||
};
|
||||
static inline void *allocate(unsigned);
|
||||
};
|
||||
|
||||
class User : public Value {
|
||||
User(const User &); // Do not implement
|
||||
void *operator new(size_t); // Do not implement
|
||||
template <unsigned>
|
||||
friend struct HungoffOperandTraits;
|
||||
protected:
|
||||
/// OperandList - This is a pointer to the array of Users for this operand.
|
||||
/// For nodes of fixed arity (e.g. a binary operator) this array will live
|
||||
/// embedded into the derived class. For nodes of variable arity
|
||||
/// (e.g. ConstantArrays, CallInst, PHINodes, ReturnInst etc), this memory
|
||||
/// will be dynamically allocated and should be destroyed by the classes
|
||||
/// prefixed to the derived class. For nodes of resizable variable arity
|
||||
/// (e.g. PHINodes, SwitchInst etc.), this memory will be dynamically
|
||||
/// allocated and should be destroyed by the classes'
|
||||
/// virtual dtor.
|
||||
Use *OperandList;
|
||||
|
||||
@ -39,13 +227,43 @@ protected:
|
||||
///
|
||||
unsigned NumOperands;
|
||||
|
||||
void *operator new(size_t s, size_t) {
|
||||
return ::operator new(s);
|
||||
void *operator new(size_t s, unsigned Us) {
|
||||
void *Storage = ::operator new(s + sizeof(Use) * Us);
|
||||
Use *Start = static_cast<Use*>(Storage);
|
||||
Use *End = Start + Us;
|
||||
User *Obj = reinterpret_cast<User*>(End);
|
||||
Obj->OperandList = Start;
|
||||
Obj->NumOperands = Us;
|
||||
Use::initTags(Start, End);
|
||||
return Obj;
|
||||
}
|
||||
User(const Type *Ty, unsigned vty, Use *OpList, unsigned NumOps)
|
||||
: Value(Ty, vty), OperandList(OpList), NumOperands(NumOps) {}
|
||||
|
||||
Use *allocHungoffUses(unsigned) const;
|
||||
void dropHungoffUses(Use *U) {
|
||||
if (OperandList == U) {
|
||||
OperandList = 0;
|
||||
NumOperands = 0;
|
||||
}
|
||||
Use::zap(U, U->getImpliedUser(), true);
|
||||
}
|
||||
public:
|
||||
~User() {
|
||||
Use::zap(OperandList, OperandList + NumOperands);
|
||||
}
|
||||
void operator delete(void *Usr) {
|
||||
User *Start = static_cast<User*>(Usr);
|
||||
Use *Storage = static_cast<Use*>(Usr) - Start->NumOperands;
|
||||
::operator delete(Storage == Start->OperandList
|
||||
? Storage
|
||||
: Usr);
|
||||
}
|
||||
template <unsigned Idx> Use &Op() {
|
||||
return OperandTraits<User>::op_begin(this)[Idx];
|
||||
}
|
||||
template <unsigned Idx> const Use &Op() const {
|
||||
return OperandTraits<User>::op_begin(const_cast<User*>(this))[Idx];
|
||||
}
|
||||
Value *getOperand(unsigned i) const {
|
||||
assert(i < NumOperands && "getOperand() out of range!");
|
||||
return OperandList[i];
|
||||
@ -93,6 +311,18 @@ public:
|
||||
}
|
||||
};
|
||||
|
||||
inline Use *OperandTraits<User>::op_begin(User *U) {
|
||||
return U->op_begin();
|
||||
}
|
||||
|
||||
inline Use *OperandTraits<User>::op_end(User *U) {
|
||||
return U->op_end();
|
||||
}
|
||||
|
||||
inline unsigned OperandTraits<User>::operands(const User *U) {
|
||||
return U->getNumOperands();
|
||||
}
|
||||
|
||||
template<> struct simplify_type<User::op_iterator> {
|
||||
typedef Value* SimpleType;
|
||||
|
||||
|
@ -232,10 +232,9 @@ inline std::ostream &operator<<(std::ostream &OS, const Value &V) {
|
||||
return OS;
|
||||
}
|
||||
|
||||
void Use::init(Value *v, User *user) {
|
||||
Val = v;
|
||||
U = user;
|
||||
if (Val) Val->addUse(*this);
|
||||
void Use::init(Value *V, User *user) {
|
||||
Val = V;
|
||||
if (V) V->addUse(*this);
|
||||
}
|
||||
|
||||
void Use::set(Value *V) {
|
||||
|
@ -23,6 +23,7 @@
|
||||
#include "llvm/ADT/SmallVector.h"
|
||||
#include "llvm/Support/MathExtras.h"
|
||||
#include "llvm/Support/MemoryBuffer.h"
|
||||
#include "llvm/OperandTraits.h"
|
||||
using namespace llvm;
|
||||
|
||||
void BitcodeReader::FreeState() {
|
||||
@ -115,55 +116,81 @@ static int GetDecodedBinaryOpcode(unsigned Val, const Type *Ty) {
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
namespace llvm {
|
||||
namespace {
|
||||
/// @brief A class for maintaining the slot number definition
|
||||
/// as a placeholder for the actual definition for forward constants defs.
|
||||
class ConstantPlaceHolder : public ConstantExpr {
|
||||
ConstantPlaceHolder(); // DO NOT IMPLEMENT
|
||||
void operator=(const ConstantPlaceHolder &); // DO NOT IMPLEMENT
|
||||
Use Op;
|
||||
public:
|
||||
// allocate space for exactly one operand
|
||||
void *operator new(size_t s) {
|
||||
return User::operator new(s, 1);
|
||||
}
|
||||
explicit ConstantPlaceHolder(const Type *Ty)
|
||||
: ConstantExpr(Ty, Instruction::UserOp1, &Op, 1),
|
||||
Op(UndefValue::get(Type::Int32Ty), this) {
|
||||
: ConstantExpr(Ty, Instruction::UserOp1, &Op<0>(), 1) {
|
||||
Op<0>() = UndefValue::get(Type::Int32Ty);
|
||||
}
|
||||
/// Provide fast operand accessors
|
||||
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
|
||||
};
|
||||
}
|
||||
|
||||
|
||||
// FIXME: can we inherit this from ConstantExpr?
|
||||
template <>
|
||||
struct OperandTraits<ConstantPlaceHolder> : FixedNumOperandTraits<1> {
|
||||
};
|
||||
|
||||
DEFINE_TRANSPARENT_OPERAND_ACCESSORS(ConstantPlaceHolder, Value)
|
||||
}
|
||||
|
||||
void BitcodeReaderValueList::resize(unsigned Desired) {
|
||||
if (Desired > Capacity) {
|
||||
// Since we expect many values to come from the bitcode file we better
|
||||
// allocate the double amount, so that the array size grows exponentially
|
||||
// at each reallocation. Also, add a small amount of 100 extra elements
|
||||
// each time, to reallocate less frequently when the array is still small.
|
||||
//
|
||||
Capacity = Desired * 2 + 100;
|
||||
Use *New = allocHungoffUses(Capacity);
|
||||
Use *Old = OperandList;
|
||||
unsigned Ops = getNumOperands();
|
||||
for (int i(Ops - 1); i >= 0; --i)
|
||||
New[i] = Old[i].get();
|
||||
OperandList = New;
|
||||
if (Old) Use::zap(Old, Old + Ops, true);
|
||||
}
|
||||
}
|
||||
|
||||
Constant *BitcodeReaderValueList::getConstantFwdRef(unsigned Idx,
|
||||
const Type *Ty) {
|
||||
if (Idx >= size()) {
|
||||
// Insert a bunch of null values.
|
||||
Uses.resize(Idx+1);
|
||||
OperandList = &Uses[0];
|
||||
resize(Idx + 1);
|
||||
NumOperands = Idx+1;
|
||||
}
|
||||
|
||||
if (Value *V = Uses[Idx]) {
|
||||
if (Value *V = OperandList[Idx]) {
|
||||
assert(Ty == V->getType() && "Type mismatch in constant table!");
|
||||
return cast<Constant>(V);
|
||||
}
|
||||
|
||||
// Create and return a placeholder, which will later be RAUW'd.
|
||||
Constant *C = new ConstantPlaceHolder(Ty);
|
||||
Uses[Idx].init(C, this);
|
||||
OperandList[Idx].init(C, this);
|
||||
return C;
|
||||
}
|
||||
|
||||
Value *BitcodeReaderValueList::getValueFwdRef(unsigned Idx, const Type *Ty) {
|
||||
if (Idx >= size()) {
|
||||
// Insert a bunch of null values.
|
||||
Uses.resize(Idx+1);
|
||||
OperandList = &Uses[0];
|
||||
resize(Idx + 1);
|
||||
NumOperands = Idx+1;
|
||||
}
|
||||
|
||||
if (Value *V = Uses[Idx]) {
|
||||
if (Value *V = OperandList[Idx]) {
|
||||
assert((Ty == 0 || Ty == V->getType()) && "Type mismatch in value table!");
|
||||
return V;
|
||||
}
|
||||
@ -173,7 +200,7 @@ Value *BitcodeReaderValueList::getValueFwdRef(unsigned Idx, const Type *Ty) {
|
||||
|
||||
// Create and return a placeholder, which will later be RAUW'd.
|
||||
Value *V = new Argument(Ty);
|
||||
Uses[Idx].init(V, this);
|
||||
OperandList[Idx].init(V, this);
|
||||
return V;
|
||||
}
|
||||
|
||||
|
@ -17,7 +17,7 @@
|
||||
#include "llvm/ModuleProvider.h"
|
||||
#include "llvm/ParameterAttributes.h"
|
||||
#include "llvm/Type.h"
|
||||
#include "llvm/User.h"
|
||||
#include "llvm/OperandTraits.h"
|
||||
#include "llvm/Bitcode/BitstreamReader.h"
|
||||
#include "llvm/Bitcode/LLVMBitCodes.h"
|
||||
#include "llvm/ADT/DenseMap.h"
|
||||
@ -26,32 +26,43 @@
|
||||
namespace llvm {
|
||||
class MemoryBuffer;
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// BitcodeReaderValueList Class
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
class BitcodeReaderValueList : public User {
|
||||
std::vector<Use> Uses;
|
||||
unsigned Capacity;
|
||||
public:
|
||||
BitcodeReaderValueList() : User(Type::VoidTy, Value::ArgumentVal, 0, 0) {}
|
||||
|
||||
BitcodeReaderValueList() : User(Type::VoidTy, Value::ArgumentVal, 0, 0)
|
||||
, Capacity(0) {}
|
||||
|
||||
/// Provide fast operand accessors
|
||||
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
|
||||
|
||||
// vector compatibility methods
|
||||
unsigned size() const { return getNumOperands(); }
|
||||
void resize(unsigned);
|
||||
void push_back(Value *V) {
|
||||
Uses.push_back(Use(V, this));
|
||||
OperandList = &Uses[0];
|
||||
++NumOperands;
|
||||
unsigned OldOps(NumOperands), NewOps(NumOperands + 1);
|
||||
resize(NewOps);
|
||||
NumOperands = NewOps;
|
||||
OperandList[OldOps] = V;
|
||||
}
|
||||
|
||||
void clear() {
|
||||
std::vector<Use>().swap(Uses);
|
||||
if (OperandList) dropHungoffUses(OperandList);
|
||||
Capacity = 0;
|
||||
}
|
||||
|
||||
Value *operator[](unsigned i) const { return getOperand(i); }
|
||||
|
||||
Value *back() const { return Uses.back(); }
|
||||
void pop_back() { Uses.pop_back(); --NumOperands; }
|
||||
Value *back() const { return getOperand(size() - 1); }
|
||||
void pop_back() { setOperand(size() - 1, 0); --NumOperands; }
|
||||
bool empty() const { return NumOperands == 0; }
|
||||
void shrinkTo(unsigned N) {
|
||||
assert(N <= NumOperands && "Invalid shrinkTo request!");
|
||||
Uses.resize(N);
|
||||
NumOperands = N;
|
||||
while (NumOperands > N)
|
||||
pop_back();
|
||||
}
|
||||
virtual void print(std::ostream&) const {}
|
||||
|
||||
@ -73,11 +84,20 @@ public:
|
||||
|
||||
private:
|
||||
void initVal(unsigned Idx, Value *V) {
|
||||
assert(Uses[Idx] == 0 && "Cannot init an already init'd Use!");
|
||||
Uses[Idx].init(V, this);
|
||||
if (Idx >= size()) {
|
||||
// Insert a bunch of null values.
|
||||
resize(Idx * 2 + 1);
|
||||
}
|
||||
assert(getOperand(Idx) == 0 && "Cannot init an already init'd Use!");
|
||||
OperandList[Idx].init(V, this);
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
template <>
|
||||
struct OperandTraits<BitcodeReaderValueList> : HungoffOperandTraits</*16 FIXME*/> {
|
||||
};
|
||||
|
||||
DEFINE_TRANSPARENT_OPERAND_ACCESSORS(BitcodeReaderValueList, Value)
|
||||
|
||||
class BitcodeReader : public ModuleProvider {
|
||||
MemoryBuffer *Buffer;
|
||||
|
@ -332,10 +332,10 @@ Constant *llvm::ConstantFoldExtractElementInstruction(const Constant *Val,
|
||||
|
||||
if (const ConstantVector *CVal = dyn_cast<ConstantVector>(Val)) {
|
||||
if (const ConstantInt *CIdx = dyn_cast<ConstantInt>(Idx)) {
|
||||
return const_cast<Constant*>(CVal->getOperand(CIdx->getZExtValue()));
|
||||
return CVal->getOperand(CIdx->getZExtValue());
|
||||
} else if (isa<UndefValue>(Idx)) {
|
||||
// ee({w,x,y,z}, undef) -> w (an arbitrary value).
|
||||
return const_cast<Constant*>(CVal->getOperand(0));
|
||||
return CVal->getOperand(0);
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
@ -401,7 +401,7 @@ Constant *llvm::ConstantFoldInsertElementInstruction(const Constant *Val,
|
||||
/// return the specified element value. Otherwise return null.
|
||||
static Constant *GetVectorElement(const Constant *C, unsigned EltNo) {
|
||||
if (const ConstantVector *CV = dyn_cast<ConstantVector>(C))
|
||||
return const_cast<Constant*>(CV->getOperand(EltNo));
|
||||
return CV->getOperand(EltNo);
|
||||
|
||||
const Type *EltTy = cast<VectorType>(C->getType())->getElementType();
|
||||
if (isa<ConstantAggregateZero>(C))
|
||||
@ -1222,9 +1222,9 @@ Constant *llvm::ConstantFoldCompareInstruction(unsigned short pred,
|
||||
if (const ConstantVector *CP2 = dyn_cast<ConstantVector>(C2)) {
|
||||
if (pred == FCmpInst::FCMP_OEQ || pred == FCmpInst::FCMP_UEQ) {
|
||||
for (unsigned i = 0, e = CP1->getNumOperands(); i != e; ++i) {
|
||||
Constant *C= ConstantExpr::getFCmp(FCmpInst::FCMP_OEQ,
|
||||
const_cast<Constant*>(CP1->getOperand(i)),
|
||||
const_cast<Constant*>(CP2->getOperand(i)));
|
||||
Constant *C = ConstantExpr::getFCmp(FCmpInst::FCMP_OEQ,
|
||||
CP1->getOperand(i),
|
||||
CP2->getOperand(i));
|
||||
if (ConstantInt *CB = dyn_cast<ConstantInt>(C))
|
||||
return CB;
|
||||
}
|
||||
@ -1233,8 +1233,8 @@ Constant *llvm::ConstantFoldCompareInstruction(unsigned short pred,
|
||||
} else if (pred == ICmpInst::ICMP_EQ) {
|
||||
for (unsigned i = 0, e = CP1->getNumOperands(); i != e; ++i) {
|
||||
Constant *C = ConstantExpr::getICmp(ICmpInst::ICMP_EQ,
|
||||
const_cast<Constant*>(CP1->getOperand(i)),
|
||||
const_cast<Constant*>(CP2->getOperand(i)));
|
||||
CP1->getOperand(i),
|
||||
CP2->getOperand(i));
|
||||
if (ConstantInt *CB = dyn_cast<ConstantInt>(C))
|
||||
return CB;
|
||||
}
|
||||
|
@ -354,7 +354,9 @@ ConstantFP *ConstantFP::get(const Type *Ty, double V) {
|
||||
|
||||
ConstantArray::ConstantArray(const ArrayType *T,
|
||||
const std::vector<Constant*> &V)
|
||||
: Constant(T, ConstantArrayVal, new Use[V.size()], V.size()) {
|
||||
: Constant(T, ConstantArrayVal,
|
||||
OperandTraits<ConstantArray>::op_end(this) - V.size(),
|
||||
V.size()) {
|
||||
assert(V.size() == T->getNumElements() &&
|
||||
"Invalid initializer vector for constant array");
|
||||
Use *OL = OperandList;
|
||||
@ -369,13 +371,12 @@ ConstantArray::ConstantArray(const ArrayType *T,
|
||||
}
|
||||
}
|
||||
|
||||
ConstantArray::~ConstantArray() {
|
||||
delete [] OperandList;
|
||||
}
|
||||
|
||||
ConstantStruct::ConstantStruct(const StructType *T,
|
||||
const std::vector<Constant*> &V)
|
||||
: Constant(T, ConstantStructVal, new Use[V.size()], V.size()) {
|
||||
: Constant(T, ConstantStructVal,
|
||||
OperandTraits<ConstantStruct>::op_end(this) - V.size(),
|
||||
V.size()) {
|
||||
assert(V.size() == T->getNumElements() &&
|
||||
"Invalid initializer vector for constant structure");
|
||||
Use *OL = OperandList;
|
||||
@ -392,14 +393,12 @@ ConstantStruct::ConstantStruct(const StructType *T,
|
||||
}
|
||||
}
|
||||
|
||||
ConstantStruct::~ConstantStruct() {
|
||||
delete [] OperandList;
|
||||
}
|
||||
|
||||
|
||||
ConstantVector::ConstantVector(const VectorType *T,
|
||||
const std::vector<Constant*> &V)
|
||||
: Constant(T, ConstantVectorVal, new Use[V.size()], V.size()) {
|
||||
: Constant(T, ConstantVectorVal,
|
||||
OperandTraits<ConstantVector>::op_end(this) - V.size(),
|
||||
V.size()) {
|
||||
Use *OL = OperandList;
|
||||
for (std::vector<Constant*>::const_iterator I = V.begin(), E = V.end();
|
||||
I != E; ++I, ++OL) {
|
||||
@ -412,10 +411,8 @@ ConstantVector::ConstantVector(const VectorType *T,
|
||||
}
|
||||
}
|
||||
|
||||
ConstantVector::~ConstantVector() {
|
||||
delete [] OperandList;
|
||||
}
|
||||
|
||||
namespace llvm {
|
||||
// We declare several classes private to this file, so use an anonymous
|
||||
// namespace
|
||||
namespace {
|
||||
@ -424,49 +421,54 @@ namespace {
|
||||
/// behind the scenes to implement unary constant exprs.
|
||||
class VISIBILITY_HIDDEN UnaryConstantExpr : public ConstantExpr {
|
||||
void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
|
||||
Use Op;
|
||||
public:
|
||||
// allocate space for exactly one operand
|
||||
void *operator new(size_t s) {
|
||||
return User::operator new(s, 1);
|
||||
}
|
||||
UnaryConstantExpr(unsigned Opcode, Constant *C, const Type *Ty)
|
||||
: ConstantExpr(Ty, Opcode, &Op, 1), Op(C, this) {}
|
||||
: ConstantExpr(Ty, Opcode, &Op<0>(), 1) {
|
||||
Op<0>() = C;
|
||||
}
|
||||
/// Transparently provide more efficient getOperand methods.
|
||||
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
|
||||
};
|
||||
|
||||
/// BinaryConstantExpr - This class is private to Constants.cpp, and is used
|
||||
/// behind the scenes to implement binary constant exprs.
|
||||
class VISIBILITY_HIDDEN BinaryConstantExpr : public ConstantExpr {
|
||||
void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
|
||||
Use Ops[2];
|
||||
public:
|
||||
// allocate space for exactly two operands
|
||||
void *operator new(size_t s) {
|
||||
return User::operator new(s, 2);
|
||||
}
|
||||
BinaryConstantExpr(unsigned Opcode, Constant *C1, Constant *C2)
|
||||
: ConstantExpr(C1->getType(), Opcode, Ops, 2) {
|
||||
Ops[0].init(C1, this);
|
||||
Ops[1].init(C2, this);
|
||||
: ConstantExpr(C1->getType(), Opcode, &Op<0>(), 2) {
|
||||
Op<0>().init(C1, this);
|
||||
Op<1>().init(C2, this);
|
||||
}
|
||||
/// Transparently provide more efficient getOperand methods.
|
||||
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
|
||||
};
|
||||
|
||||
/// SelectConstantExpr - This class is private to Constants.cpp, and is used
|
||||
/// behind the scenes to implement select constant exprs.
|
||||
class VISIBILITY_HIDDEN SelectConstantExpr : public ConstantExpr {
|
||||
void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
|
||||
Use Ops[3];
|
||||
public:
|
||||
// allocate space for exactly three operands
|
||||
void *operator new(size_t s) {
|
||||
return User::operator new(s, 3);
|
||||
}
|
||||
SelectConstantExpr(Constant *C1, Constant *C2, Constant *C3)
|
||||
: ConstantExpr(C2->getType(), Instruction::Select, Ops, 3) {
|
||||
Ops[0].init(C1, this);
|
||||
Ops[1].init(C2, this);
|
||||
Ops[2].init(C3, this);
|
||||
: ConstantExpr(C2->getType(), Instruction::Select, &Op<0>(), 3) {
|
||||
Op<0>().init(C1, this);
|
||||
Op<1>().init(C2, this);
|
||||
Op<2>().init(C3, this);
|
||||
}
|
||||
/// Transparently provide more efficient getOperand methods.
|
||||
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
|
||||
};
|
||||
|
||||
/// ExtractElementConstantExpr - This class is private to
|
||||
@ -474,7 +476,6 @@ public:
|
||||
/// extractelement constant exprs.
|
||||
class VISIBILITY_HIDDEN ExtractElementConstantExpr : public ConstantExpr {
|
||||
void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
|
||||
Use Ops[2];
|
||||
public:
|
||||
// allocate space for exactly two operands
|
||||
void *operator new(size_t s) {
|
||||
@ -482,10 +483,12 @@ public:
|
||||
}
|
||||
ExtractElementConstantExpr(Constant *C1, Constant *C2)
|
||||
: ConstantExpr(cast<VectorType>(C1->getType())->getElementType(),
|
||||
Instruction::ExtractElement, Ops, 2) {
|
||||
Ops[0].init(C1, this);
|
||||
Ops[1].init(C2, this);
|
||||
Instruction::ExtractElement, &Op<0>(), 2) {
|
||||
Op<0>().init(C1, this);
|
||||
Op<1>().init(C2, this);
|
||||
}
|
||||
/// Transparently provide more efficient getOperand methods.
|
||||
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
|
||||
};
|
||||
|
||||
/// InsertElementConstantExpr - This class is private to
|
||||
@ -493,7 +496,6 @@ public:
|
||||
/// insertelement constant exprs.
|
||||
class VISIBILITY_HIDDEN InsertElementConstantExpr : public ConstantExpr {
|
||||
void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
|
||||
Use Ops[3];
|
||||
public:
|
||||
// allocate space for exactly three operands
|
||||
void *operator new(size_t s) {
|
||||
@ -501,11 +503,13 @@ public:
|
||||
}
|
||||
InsertElementConstantExpr(Constant *C1, Constant *C2, Constant *C3)
|
||||
: ConstantExpr(C1->getType(), Instruction::InsertElement,
|
||||
Ops, 3) {
|
||||
Ops[0].init(C1, this);
|
||||
Ops[1].init(C2, this);
|
||||
Ops[2].init(C3, this);
|
||||
&Op<0>(), 3) {
|
||||
Op<0>().init(C1, this);
|
||||
Op<1>().init(C2, this);
|
||||
Op<2>().init(C3, this);
|
||||
}
|
||||
/// Transparently provide more efficient getOperand methods.
|
||||
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
|
||||
};
|
||||
|
||||
/// ShuffleVectorConstantExpr - This class is private to
|
||||
@ -513,7 +517,6 @@ public:
|
||||
/// shufflevector constant exprs.
|
||||
class VISIBILITY_HIDDEN ShuffleVectorConstantExpr : public ConstantExpr {
|
||||
void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
|
||||
Use Ops[3];
|
||||
public:
|
||||
// allocate space for exactly three operands
|
||||
void *operator new(size_t s) {
|
||||
@ -521,32 +524,27 @@ public:
|
||||
}
|
||||
ShuffleVectorConstantExpr(Constant *C1, Constant *C2, Constant *C3)
|
||||
: ConstantExpr(C1->getType(), Instruction::ShuffleVector,
|
||||
Ops, 3) {
|
||||
Ops[0].init(C1, this);
|
||||
Ops[1].init(C2, this);
|
||||
Ops[2].init(C3, this);
|
||||
&Op<0>(), 3) {
|
||||
Op<0>().init(C1, this);
|
||||
Op<1>().init(C2, this);
|
||||
Op<2>().init(C3, this);
|
||||
}
|
||||
/// Transparently provide more efficient getOperand methods.
|
||||
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
|
||||
};
|
||||
|
||||
/// GetElementPtrConstantExpr - This class is private to Constants.cpp, and is
|
||||
/// used behind the scenes to implement getelementpr constant exprs.
|
||||
class VISIBILITY_HIDDEN GetElementPtrConstantExpr : public ConstantExpr {
|
||||
GetElementPtrConstantExpr(Constant *C, const std::vector<Constant*> &IdxList,
|
||||
const Type *DestTy)
|
||||
: ConstantExpr(DestTy, Instruction::GetElementPtr,
|
||||
new Use[IdxList.size()+1], IdxList.size()+1) {
|
||||
OperandList[0].init(C, this);
|
||||
for (unsigned i = 0, E = IdxList.size(); i != E; ++i)
|
||||
OperandList[i+1].init(IdxList[i], this);
|
||||
}
|
||||
const Type *DestTy);
|
||||
public:
|
||||
static GetElementPtrConstantExpr *Create(Constant *C, const std::vector<Constant*> &IdxList,
|
||||
const Type *DestTy) {
|
||||
return new(IdxList.size() + 1/*FIXME*/) GetElementPtrConstantExpr(C, IdxList, DestTy);
|
||||
}
|
||||
~GetElementPtrConstantExpr() {
|
||||
delete [] OperandList;
|
||||
const Type *DestTy) {
|
||||
return new(IdxList.size() + 1) GetElementPtrConstantExpr(C, IdxList, DestTy);
|
||||
}
|
||||
/// Transparently provide more efficient getOperand methods.
|
||||
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
|
||||
};
|
||||
|
||||
// CompareConstantExpr - This class is private to Constants.cpp, and is used
|
||||
@ -559,17 +557,77 @@ struct VISIBILITY_HIDDEN CompareConstantExpr : public ConstantExpr {
|
||||
return User::operator new(s, 2);
|
||||
}
|
||||
unsigned short predicate;
|
||||
Use Ops[2];
|
||||
CompareConstantExpr(Instruction::OtherOps opc, unsigned short pred,
|
||||
Constant* LHS, Constant* RHS)
|
||||
: ConstantExpr(Type::Int1Ty, opc, Ops, 2), predicate(pred) {
|
||||
OperandList[0].init(LHS, this);
|
||||
OperandList[1].init(RHS, this);
|
||||
: ConstantExpr(Type::Int1Ty, opc, &Op<0>(), 2), predicate(pred) {
|
||||
Op<0>().init(LHS, this);
|
||||
Op<1>().init(RHS, this);
|
||||
}
|
||||
/// Transparently provide more efficient getOperand methods.
|
||||
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
|
||||
};
|
||||
|
||||
} // end anonymous namespace
|
||||
|
||||
template <>
|
||||
struct OperandTraits<UnaryConstantExpr> : FixedNumOperandTraits<1> {
|
||||
};
|
||||
DEFINE_TRANSPARENT_OPERAND_ACCESSORS(UnaryConstantExpr, Value)
|
||||
|
||||
template <>
|
||||
struct OperandTraits<BinaryConstantExpr> : FixedNumOperandTraits<2> {
|
||||
};
|
||||
DEFINE_TRANSPARENT_OPERAND_ACCESSORS(BinaryConstantExpr, Value)
|
||||
|
||||
template <>
|
||||
struct OperandTraits<SelectConstantExpr> : FixedNumOperandTraits<3> {
|
||||
};
|
||||
DEFINE_TRANSPARENT_OPERAND_ACCESSORS(SelectConstantExpr, Value)
|
||||
|
||||
template <>
|
||||
struct OperandTraits<ExtractElementConstantExpr> : FixedNumOperandTraits<2> {
|
||||
};
|
||||
DEFINE_TRANSPARENT_OPERAND_ACCESSORS(ExtractElementConstantExpr, Value)
|
||||
|
||||
template <>
|
||||
struct OperandTraits<InsertElementConstantExpr> : FixedNumOperandTraits<3> {
|
||||
};
|
||||
DEFINE_TRANSPARENT_OPERAND_ACCESSORS(InsertElementConstantExpr, Value)
|
||||
|
||||
template <>
|
||||
struct OperandTraits<ShuffleVectorConstantExpr> : FixedNumOperandTraits<3> {
|
||||
};
|
||||
DEFINE_TRANSPARENT_OPERAND_ACCESSORS(ShuffleVectorConstantExpr, Value)
|
||||
|
||||
|
||||
template <>
|
||||
struct OperandTraits<GetElementPtrConstantExpr> : VariadicOperandTraits<1> {
|
||||
};
|
||||
|
||||
GetElementPtrConstantExpr::GetElementPtrConstantExpr
|
||||
(Constant *C,
|
||||
const std::vector<Constant*> &IdxList,
|
||||
const Type *DestTy)
|
||||
: ConstantExpr(DestTy, Instruction::GetElementPtr,
|
||||
OperandTraits<GetElementPtrConstantExpr>::op_end(this)
|
||||
- (IdxList.size()+1),
|
||||
IdxList.size()+1) {
|
||||
OperandList[0].init(C, this);
|
||||
for (unsigned i = 0, E = IdxList.size(); i != E; ++i)
|
||||
OperandList[i+1].init(IdxList[i], this);
|
||||
}
|
||||
|
||||
DEFINE_TRANSPARENT_OPERAND_ACCESSORS(GetElementPtrConstantExpr, Value)
|
||||
|
||||
|
||||
template <>
|
||||
struct OperandTraits<CompareConstantExpr> : FixedNumOperandTraits<2> {
|
||||
};
|
||||
DEFINE_TRANSPARENT_OPERAND_ACCESSORS(CompareConstantExpr, Value)
|
||||
|
||||
|
||||
} // End llvm namespace
|
||||
|
||||
|
||||
// Utility function for determining if a ConstantExpr is a CastOp or not. This
|
||||
// can't be inline because we don't want to #include Instruction.h into
|
||||
@ -815,17 +873,29 @@ bool ConstantFP::isValueValidForType(const Type *Ty, const APFloat& Val) {
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Factory Function Implementation
|
||||
|
||||
|
||||
// The number of operands for each ConstantCreator::create method is
|
||||
// determined by the ConstantTraits template.
|
||||
// ConstantCreator - A class that is used to create constants by
|
||||
// ValueMap*. This class should be partially specialized if there is
|
||||
// something strange that needs to be done to interface to the ctor for the
|
||||
// constant.
|
||||
//
|
||||
namespace llvm {
|
||||
template<class ValType>
|
||||
struct ConstantTraits;
|
||||
|
||||
template<typename T, typename Alloc>
|
||||
struct VISIBILITY_HIDDEN ConstantTraits< std::vector<T, Alloc> > {
|
||||
static unsigned uses(const std::vector<T, Alloc>& v) {
|
||||
return v.size();
|
||||
}
|
||||
};
|
||||
|
||||
template<class ConstantClass, class TypeClass, class ValType>
|
||||
struct VISIBILITY_HIDDEN ConstantCreator {
|
||||
static ConstantClass *create(const TypeClass *Ty, const ValType &V) {
|
||||
unsigned FIXME = 0; // = traits<ValType>::uses(V)
|
||||
return new(FIXME) ConstantClass(Ty, V);
|
||||
return new(ConstantTraits<ValType>::uses(V)) ConstantClass(Ty, V);
|
||||
}
|
||||
};
|
||||
|
||||
|
@ -89,14 +89,13 @@ GlobalVariable::GlobalVariable(const Type *Ty, bool constant, LinkageTypes Link,
|
||||
Module *ParentModule, bool ThreadLocal,
|
||||
unsigned AddressSpace)
|
||||
: GlobalValue(PointerType::get(Ty, AddressSpace), Value::GlobalVariableVal,
|
||||
&Initializer, InitVal != 0, Link, Name),
|
||||
OperandTraits<GlobalVariable>::op_begin(this),
|
||||
InitVal != 0, Link, Name),
|
||||
isConstantGlobal(constant), isThreadLocalSymbol(ThreadLocal) {
|
||||
if (InitVal) {
|
||||
assert(InitVal->getType() == Ty &&
|
||||
"Initializer should be the same type as the GlobalVariable!");
|
||||
Initializer.init(InitVal, this);
|
||||
} else {
|
||||
Initializer.init(0, this);
|
||||
Op<0>().init(InitVal, this);
|
||||
}
|
||||
|
||||
LeakDetector::addGarbageObject(this);
|
||||
@ -110,14 +109,13 @@ GlobalVariable::GlobalVariable(const Type *Ty, bool constant, LinkageTypes Link,
|
||||
GlobalVariable *Before, bool ThreadLocal,
|
||||
unsigned AddressSpace)
|
||||
: GlobalValue(PointerType::get(Ty, AddressSpace), Value::GlobalVariableVal,
|
||||
&Initializer, InitVal != 0, Link, Name),
|
||||
OperandTraits<GlobalVariable>::op_begin(this),
|
||||
InitVal != 0, Link, Name),
|
||||
isConstantGlobal(constant), isThreadLocalSymbol(ThreadLocal) {
|
||||
if (InitVal) {
|
||||
assert(InitVal->getType() == Ty &&
|
||||
"Initializer should be the same type as the GlobalVariable!");
|
||||
Initializer.init(InitVal, this);
|
||||
} else {
|
||||
Initializer.init(0, this);
|
||||
Op<0>().init(InitVal, this);
|
||||
}
|
||||
|
||||
LeakDetector::addGarbageObject(this);
|
||||
@ -169,12 +167,12 @@ void GlobalVariable::replaceUsesOfWithOnConstant(Value *From, Value *To,
|
||||
GlobalAlias::GlobalAlias(const Type *Ty, LinkageTypes Link,
|
||||
const std::string &Name, Constant* aliasee,
|
||||
Module *ParentModule)
|
||||
: GlobalValue(Ty, Value::GlobalAliasVal, &Aliasee, 1, Link, Name) {
|
||||
: GlobalValue(Ty, Value::GlobalAliasVal, &Op<0>(), 1, Link, Name) {
|
||||
LeakDetector::addGarbageObject(this);
|
||||
|
||||
if (aliasee)
|
||||
assert(aliasee->getType() == Ty && "Alias and aliasee types should match!");
|
||||
Aliasee.init(aliasee, this);
|
||||
Op<0>().init(aliasee, this);
|
||||
|
||||
if (ParentModule)
|
||||
ParentModule->getAliasList().push_back(this);
|
||||
|
@ -100,18 +100,21 @@ void CallSite::setDoesNotThrow(bool doesNotThrow) {
|
||||
TerminatorInst::~TerminatorInst() {
|
||||
}
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// UnaryInstruction Class
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
// Out of line virtual method, so the vtable, etc has a home.
|
||||
UnaryInstruction::~UnaryInstruction() {
|
||||
}
|
||||
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// PHINode Class
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
PHINode::PHINode(const PHINode &PN)
|
||||
: Instruction(PN.getType(), Instruction::PHI,
|
||||
new Use[PN.getNumOperands()], PN.getNumOperands()),
|
||||
allocHungoffUses(PN.getNumOperands()), PN.getNumOperands()),
|
||||
ReservedSpace(PN.getNumOperands()) {
|
||||
Use *OL = OperandList;
|
||||
for (unsigned i = 0, e = PN.getNumOperands(); i != e; i+=2) {
|
||||
@ -121,7 +124,7 @@ PHINode::PHINode(const PHINode &PN)
|
||||
}
|
||||
|
||||
PHINode::~PHINode() {
|
||||
delete [] OperandList;
|
||||
dropHungoffUses(OperandList);
|
||||
}
|
||||
|
||||
// removeIncomingValue - Remove an incoming value. This is useful if a
|
||||
@ -164,8 +167,9 @@ Value *PHINode::removeIncomingValue(unsigned Idx, bool DeletePHIIfEmpty) {
|
||||
/// 3. If NumOps == NumOperands, trim the reserved space.
|
||||
///
|
||||
void PHINode::resizeOperands(unsigned NumOps) {
|
||||
unsigned e = getNumOperands();
|
||||
if (NumOps == 0) {
|
||||
NumOps = (getNumOperands())*3/2;
|
||||
NumOps = e*3/2;
|
||||
if (NumOps < 4) NumOps = 4; // 4 op PHI nodes are VERY common.
|
||||
} else if (NumOps*2 > NumOperands) {
|
||||
// No resize needed.
|
||||
@ -177,14 +181,13 @@ void PHINode::resizeOperands(unsigned NumOps) {
|
||||
}
|
||||
|
||||
ReservedSpace = NumOps;
|
||||
Use *NewOps = new Use[NumOps];
|
||||
Use *OldOps = OperandList;
|
||||
for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
|
||||
Use *NewOps = allocHungoffUses(NumOps);
|
||||
for (unsigned i = 0; i != e; ++i) {
|
||||
NewOps[i].init(OldOps[i], this);
|
||||
OldOps[i].set(0);
|
||||
}
|
||||
delete [] OldOps;
|
||||
OperandList = NewOps;
|
||||
if (OldOps) Use::zap(OldOps, OldOps + e, true);
|
||||
}
|
||||
|
||||
/// hasConstantValue - If the specified PHI node always merges together the same
|
||||
@ -241,12 +244,11 @@ Value *PHINode::hasConstantValue(bool AllowNonDominatingInstruction) const {
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
CallInst::~CallInst() {
|
||||
delete [] OperandList;
|
||||
}
|
||||
|
||||
void CallInst::init(Value *Func, Value* const *Params, unsigned NumParams) {
|
||||
NumOperands = NumParams+1;
|
||||
Use *OL = OperandList = new Use[NumParams+1];
|
||||
assert(NumOperands == NumParams+1 && "NumOperands not set up?");
|
||||
Use *OL = OperandList;
|
||||
OL[0].init(Func, this);
|
||||
|
||||
const FunctionType *FTy =
|
||||
@ -265,8 +267,8 @@ void CallInst::init(Value *Func, Value* const *Params, unsigned NumParams) {
|
||||
}
|
||||
|
||||
void CallInst::init(Value *Func, Value *Actual1, Value *Actual2) {
|
||||
NumOperands = 3;
|
||||
Use *OL = OperandList = new Use[3];
|
||||
assert(NumOperands == 3 && "NumOperands not set up?");
|
||||
Use *OL = OperandList;
|
||||
OL[0].init(Func, this);
|
||||
OL[1].init(Actual1, this);
|
||||
OL[2].init(Actual2, this);
|
||||
@ -287,8 +289,8 @@ void CallInst::init(Value *Func, Value *Actual1, Value *Actual2) {
|
||||
}
|
||||
|
||||
void CallInst::init(Value *Func, Value *Actual) {
|
||||
NumOperands = 2;
|
||||
Use *OL = OperandList = new Use[2];
|
||||
assert(NumOperands == 2 && "NumOperands not set up?");
|
||||
Use *OL = OperandList;
|
||||
OL[0].init(Func, this);
|
||||
OL[1].init(Actual, this);
|
||||
|
||||
@ -305,8 +307,8 @@ void CallInst::init(Value *Func, Value *Actual) {
|
||||
}
|
||||
|
||||
void CallInst::init(Value *Func) {
|
||||
NumOperands = 1;
|
||||
Use *OL = OperandList = new Use[1];
|
||||
assert(NumOperands == 1 && "NumOperands not set up?");
|
||||
Use *OL = OperandList;
|
||||
OL[0].init(Func, this);
|
||||
|
||||
const FunctionType *FTy =
|
||||
@ -320,7 +322,9 @@ CallInst::CallInst(Value *Func, Value* Actual, const std::string &Name,
|
||||
Instruction *InsertBefore)
|
||||
: Instruction(cast<FunctionType>(cast<PointerType>(Func->getType())
|
||||
->getElementType())->getReturnType(),
|
||||
Instruction::Call, 0, 0, InsertBefore) {
|
||||
Instruction::Call,
|
||||
OperandTraits<CallInst>::op_end(this) - 2,
|
||||
2, InsertBefore) {
|
||||
init(Func, Actual);
|
||||
setName(Name);
|
||||
}
|
||||
@ -329,7 +333,9 @@ CallInst::CallInst(Value *Func, Value* Actual, const std::string &Name,
|
||||
BasicBlock *InsertAtEnd)
|
||||
: Instruction(cast<FunctionType>(cast<PointerType>(Func->getType())
|
||||
->getElementType())->getReturnType(),
|
||||
Instruction::Call, 0, 0, InsertAtEnd) {
|
||||
Instruction::Call,
|
||||
OperandTraits<CallInst>::op_end(this) - 2,
|
||||
2, InsertAtEnd) {
|
||||
init(Func, Actual);
|
||||
setName(Name);
|
||||
}
|
||||
@ -337,7 +343,9 @@ CallInst::CallInst(Value *Func, const std::string &Name,
|
||||
Instruction *InsertBefore)
|
||||
: Instruction(cast<FunctionType>(cast<PointerType>(Func->getType())
|
||||
->getElementType())->getReturnType(),
|
||||
Instruction::Call, 0, 0, InsertBefore) {
|
||||
Instruction::Call,
|
||||
OperandTraits<CallInst>::op_end(this) - 1,
|
||||
1, InsertBefore) {
|
||||
init(Func);
|
||||
setName(Name);
|
||||
}
|
||||
@ -346,13 +354,16 @@ CallInst::CallInst(Value *Func, const std::string &Name,
|
||||
BasicBlock *InsertAtEnd)
|
||||
: Instruction(cast<FunctionType>(cast<PointerType>(Func->getType())
|
||||
->getElementType())->getReturnType(),
|
||||
Instruction::Call, 0, 0, InsertAtEnd) {
|
||||
Instruction::Call,
|
||||
OperandTraits<CallInst>::op_end(this) - 1,
|
||||
1, InsertAtEnd) {
|
||||
init(Func);
|
||||
setName(Name);
|
||||
}
|
||||
|
||||
CallInst::CallInst(const CallInst &CI)
|
||||
: Instruction(CI.getType(), Instruction::Call, new Use[CI.getNumOperands()],
|
||||
: Instruction(CI.getType(), Instruction::Call,
|
||||
OperandTraits<CallInst>::op_end(this) - CI.getNumOperands(),
|
||||
CI.getNumOperands()) {
|
||||
setParamAttrs(CI.getParamAttrs());
|
||||
SubclassData = CI.SubclassData;
|
||||
@ -384,14 +395,10 @@ void CallInst::setDoesNotThrow(bool doesNotThrow) {
|
||||
// InvokeInst Implementation
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
InvokeInst::~InvokeInst() {
|
||||
delete [] OperandList;
|
||||
}
|
||||
|
||||
void InvokeInst::init(Value *Fn, BasicBlock *IfNormal, BasicBlock *IfException,
|
||||
Value* const *Args, unsigned NumArgs) {
|
||||
NumOperands = 3+NumArgs;
|
||||
Use *OL = OperandList = new Use[3+NumArgs];
|
||||
assert(NumOperands == 3+NumArgs && "NumOperands not set up?");
|
||||
Use *OL = OperandList;
|
||||
OL[0].init(Fn, this);
|
||||
OL[1].init(IfNormal, this);
|
||||
OL[2].init(IfException, this);
|
||||
@ -414,7 +421,8 @@ void InvokeInst::init(Value *Fn, BasicBlock *IfNormal, BasicBlock *IfException,
|
||||
|
||||
InvokeInst::InvokeInst(const InvokeInst &II)
|
||||
: TerminatorInst(II.getType(), Instruction::Invoke,
|
||||
new Use[II.getNumOperands()], II.getNumOperands()) {
|
||||
OperandTraits<InvokeInst>::op_end(this) - II.getNumOperands(),
|
||||
II.getNumOperands()) {
|
||||
setParamAttrs(II.getParamAttrs());
|
||||
SubclassData = II.SubclassData;
|
||||
Use *OL = OperandList, *InOL = II.OperandList;
|
||||
@ -456,45 +464,51 @@ void InvokeInst::setDoesNotThrow(bool doesNotThrow) {
|
||||
|
||||
ReturnInst::ReturnInst(const ReturnInst &RI)
|
||||
: TerminatorInst(Type::VoidTy, Instruction::Ret,
|
||||
&RetVal, RI.getNumOperands()) {
|
||||
OperandTraits<ReturnInst>::op_end(this) - RI.getNumOperands(),
|
||||
RI.getNumOperands()) {
|
||||
unsigned N = RI.getNumOperands();
|
||||
if (N == 1)
|
||||
RetVal.init(RI.RetVal, this);
|
||||
if (N == 1)
|
||||
Op<0>().init(RI.Op<0>(), this);
|
||||
else if (N) {
|
||||
Use *OL = OperandList = new Use[N];
|
||||
Use *OL = OperandList;
|
||||
for (unsigned i = 0; i < N; ++i)
|
||||
OL[i].init(RI.getOperand(i), this);
|
||||
}
|
||||
}
|
||||
|
||||
ReturnInst::ReturnInst(Value *retVal, Instruction *InsertBefore)
|
||||
: TerminatorInst(Type::VoidTy, Instruction::Ret, &RetVal, 0, InsertBefore) {
|
||||
: TerminatorInst(Type::VoidTy, Instruction::Ret,
|
||||
OperandTraits<ReturnInst>::op_end(this) - (retVal != 0),
|
||||
retVal != 0, InsertBefore) {
|
||||
if (retVal)
|
||||
init(&retVal, 1);
|
||||
}
|
||||
ReturnInst::ReturnInst(Value *retVal, BasicBlock *InsertAtEnd)
|
||||
: TerminatorInst(Type::VoidTy, Instruction::Ret, &RetVal, 0, InsertAtEnd) {
|
||||
: TerminatorInst(Type::VoidTy, Instruction::Ret,
|
||||
OperandTraits<ReturnInst>::op_end(this) - (retVal != 0),
|
||||
retVal != 0, InsertAtEnd) {
|
||||
if (retVal)
|
||||
init(&retVal, 1);
|
||||
}
|
||||
ReturnInst::ReturnInst(BasicBlock *InsertAtEnd)
|
||||
: TerminatorInst(Type::VoidTy, Instruction::Ret, &RetVal, 0, InsertAtEnd) {
|
||||
: TerminatorInst(Type::VoidTy, Instruction::Ret,
|
||||
OperandTraits<ReturnInst>::op_end(this),
|
||||
0, InsertAtEnd) {
|
||||
}
|
||||
|
||||
ReturnInst::ReturnInst(Value * const* retVals, unsigned N,
|
||||
Instruction *InsertBefore)
|
||||
: TerminatorInst(Type::VoidTy, Instruction::Ret, &RetVal, N, InsertBefore) {
|
||||
: TerminatorInst(Type::VoidTy, Instruction::Ret,
|
||||
OperandTraits<ReturnInst>::op_end(this) - N,
|
||||
N, InsertBefore) {
|
||||
if (N != 0)
|
||||
init(retVals, N);
|
||||
}
|
||||
ReturnInst::ReturnInst(Value * const* retVals, unsigned N,
|
||||
BasicBlock *InsertAtEnd)
|
||||
: TerminatorInst(Type::VoidTy, Instruction::Ret, &RetVal, N, InsertAtEnd) {
|
||||
if (N != 0)
|
||||
init(retVals, N);
|
||||
}
|
||||
ReturnInst::ReturnInst(Value * const* retVals, unsigned N)
|
||||
: TerminatorInst(Type::VoidTy, Instruction::Ret, &RetVal, N) {
|
||||
: TerminatorInst(Type::VoidTy, Instruction::Ret,
|
||||
OperandTraits<ReturnInst>::op_end(this) - N,
|
||||
N, InsertAtEnd) {
|
||||
if (N != 0)
|
||||
init(retVals, N);
|
||||
}
|
||||
@ -507,11 +521,11 @@ void ReturnInst::init(Value * const* retVals, unsigned N) {
|
||||
Value *V = *retVals;
|
||||
if (V->getType() == Type::VoidTy)
|
||||
return;
|
||||
RetVal.init(V, this);
|
||||
Op<0>().init(V, this);
|
||||
return;
|
||||
}
|
||||
|
||||
Use *OL = OperandList = new Use[NumOperands];
|
||||
Use *OL = OperandList;
|
||||
for (unsigned i = 0; i < NumOperands; ++i) {
|
||||
Value *V = *retVals++;
|
||||
assert(!isa<BasicBlock>(V) &&
|
||||
@ -537,8 +551,6 @@ BasicBlock *ReturnInst::getSuccessorV(unsigned idx) const {
|
||||
}
|
||||
|
||||
ReturnInst::~ReturnInst() {
|
||||
if (NumOperands > 1)
|
||||
delete [] OperandList;
|
||||
}
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
@ -603,33 +615,41 @@ void BranchInst::AssertOK() {
|
||||
}
|
||||
|
||||
BranchInst::BranchInst(BasicBlock *IfTrue, Instruction *InsertBefore)
|
||||
: TerminatorInst(Type::VoidTy, Instruction::Br, Ops, 1, InsertBefore) {
|
||||
: TerminatorInst(Type::VoidTy, Instruction::Br,
|
||||
OperandTraits<BranchInst>::op_end(this) - 1,
|
||||
1, InsertBefore) {
|
||||
assert(IfTrue != 0 && "Branch destination may not be null!");
|
||||
Ops[0].init(reinterpret_cast<Value*>(IfTrue), this);
|
||||
Op<0>().init(reinterpret_cast<Value*>(IfTrue), this);
|
||||
}
|
||||
BranchInst::BranchInst(BasicBlock *IfTrue, BasicBlock *IfFalse, Value *Cond,
|
||||
Instruction *InsertBefore)
|
||||
: TerminatorInst(Type::VoidTy, Instruction::Br, Ops, 3, InsertBefore) {
|
||||
Ops[0].init(reinterpret_cast<Value*>(IfTrue), this);
|
||||
Ops[1].init(reinterpret_cast<Value*>(IfFalse), this);
|
||||
Ops[2].init(Cond, this);
|
||||
: TerminatorInst(Type::VoidTy, Instruction::Br,
|
||||
OperandTraits<BranchInst>::op_end(this) - 3,
|
||||
3, InsertBefore) {
|
||||
Op<0>().init(reinterpret_cast<Value*>(IfTrue), this);
|
||||
Op<1>().init(reinterpret_cast<Value*>(IfFalse), this);
|
||||
Op<2>().init(Cond, this);
|
||||
#ifndef NDEBUG
|
||||
AssertOK();
|
||||
#endif
|
||||
}
|
||||
|
||||
BranchInst::BranchInst(BasicBlock *IfTrue, BasicBlock *InsertAtEnd)
|
||||
: TerminatorInst(Type::VoidTy, Instruction::Br, Ops, 1, InsertAtEnd) {
|
||||
: TerminatorInst(Type::VoidTy, Instruction::Br,
|
||||
OperandTraits<BranchInst>::op_end(this) - 1,
|
||||
1, InsertAtEnd) {
|
||||
assert(IfTrue != 0 && "Branch destination may not be null!");
|
||||
Ops[0].init(reinterpret_cast<Value*>(IfTrue), this);
|
||||
Op<0>().init(reinterpret_cast<Value*>(IfTrue), this);
|
||||
}
|
||||
|
||||
BranchInst::BranchInst(BasicBlock *IfTrue, BasicBlock *IfFalse, Value *Cond,
|
||||
BasicBlock *InsertAtEnd)
|
||||
: TerminatorInst(Type::VoidTy, Instruction::Br, Ops, 3, InsertAtEnd) {
|
||||
Ops[0].init(reinterpret_cast<Value*>(IfTrue), this);
|
||||
Ops[1].init(reinterpret_cast<Value*>(IfFalse), this);
|
||||
Ops[2].init(Cond, this);
|
||||
: TerminatorInst(Type::VoidTy, Instruction::Br,
|
||||
OperandTraits<BranchInst>::op_end(this) - 3,
|
||||
3, InsertAtEnd) {
|
||||
Op<0>().init(reinterpret_cast<Value*>(IfTrue), this);
|
||||
Op<1>().init(reinterpret_cast<Value*>(IfFalse), this);
|
||||
Op<2>().init(Cond, this);
|
||||
#ifndef NDEBUG
|
||||
AssertOK();
|
||||
#endif
|
||||
@ -637,7 +657,9 @@ BranchInst::BranchInst(BasicBlock *IfTrue, BasicBlock *IfFalse, Value *Cond,
|
||||
|
||||
|
||||
BranchInst::BranchInst(const BranchInst &BI) :
|
||||
TerminatorInst(Type::VoidTy, Instruction::Br, Ops, BI.getNumOperands()) {
|
||||
TerminatorInst(Type::VoidTy, Instruction::Br,
|
||||
OperandTraits<BranchInst>::op_end(this) - BI.getNumOperands(),
|
||||
BI.getNumOperands()) {
|
||||
OperandList[0].init(BI.getOperand(0), this);
|
||||
if (BI.getNumOperands() != 1) {
|
||||
assert(BI.getNumOperands() == 3 && "BR can have 1 or 3 operands!");
|
||||
@ -869,18 +891,24 @@ void StoreInst::AssertOK() {
|
||||
|
||||
|
||||
StoreInst::StoreInst(Value *val, Value *addr, Instruction *InsertBefore)
|
||||
: Instruction(Type::VoidTy, Store, Ops, 2, InsertBefore) {
|
||||
Ops[0].init(val, this);
|
||||
Ops[1].init(addr, this);
|
||||
: Instruction(Type::VoidTy, Store,
|
||||
OperandTraits<StoreInst>::op_begin(this),
|
||||
OperandTraits<StoreInst>::operands(this),
|
||||
InsertBefore) {
|
||||
Op<0>().init(val, this);
|
||||
Op<1>().init(addr, this);
|
||||
setVolatile(false);
|
||||
setAlignment(0);
|
||||
AssertOK();
|
||||
}
|
||||
|
||||
StoreInst::StoreInst(Value *val, Value *addr, BasicBlock *InsertAtEnd)
|
||||
: Instruction(Type::VoidTy, Store, Ops, 2, InsertAtEnd) {
|
||||
Ops[0].init(val, this);
|
||||
Ops[1].init(addr, this);
|
||||
: Instruction(Type::VoidTy, Store,
|
||||
OperandTraits<StoreInst>::op_begin(this),
|
||||
OperandTraits<StoreInst>::operands(this),
|
||||
InsertAtEnd) {
|
||||
Op<0>().init(val, this);
|
||||
Op<1>().init(addr, this);
|
||||
setVolatile(false);
|
||||
setAlignment(0);
|
||||
AssertOK();
|
||||
@ -888,9 +916,12 @@ StoreInst::StoreInst(Value *val, Value *addr, BasicBlock *InsertAtEnd)
|
||||
|
||||
StoreInst::StoreInst(Value *val, Value *addr, bool isVolatile,
|
||||
Instruction *InsertBefore)
|
||||
: Instruction(Type::VoidTy, Store, Ops, 2, InsertBefore) {
|
||||
Ops[0].init(val, this);
|
||||
Ops[1].init(addr, this);
|
||||
: Instruction(Type::VoidTy, Store,
|
||||
OperandTraits<StoreInst>::op_begin(this),
|
||||
OperandTraits<StoreInst>::operands(this),
|
||||
InsertBefore) {
|
||||
Op<0>().init(val, this);
|
||||
Op<1>().init(addr, this);
|
||||
setVolatile(isVolatile);
|
||||
setAlignment(0);
|
||||
AssertOK();
|
||||
@ -898,9 +929,12 @@ StoreInst::StoreInst(Value *val, Value *addr, bool isVolatile,
|
||||
|
||||
StoreInst::StoreInst(Value *val, Value *addr, bool isVolatile,
|
||||
unsigned Align, Instruction *InsertBefore)
|
||||
: Instruction(Type::VoidTy, Store, Ops, 2, InsertBefore) {
|
||||
Ops[0].init(val, this);
|
||||
Ops[1].init(addr, this);
|
||||
: Instruction(Type::VoidTy, Store,
|
||||
OperandTraits<StoreInst>::op_begin(this),
|
||||
OperandTraits<StoreInst>::operands(this),
|
||||
InsertBefore) {
|
||||
Op<0>().init(val, this);
|
||||
Op<1>().init(addr, this);
|
||||
setVolatile(isVolatile);
|
||||
setAlignment(Align);
|
||||
AssertOK();
|
||||
@ -908,9 +942,12 @@ StoreInst::StoreInst(Value *val, Value *addr, bool isVolatile,
|
||||
|
||||
StoreInst::StoreInst(Value *val, Value *addr, bool isVolatile,
|
||||
unsigned Align, BasicBlock *InsertAtEnd)
|
||||
: Instruction(Type::VoidTy, Store, Ops, 2, InsertAtEnd) {
|
||||
Ops[0].init(val, this);
|
||||
Ops[1].init(addr, this);
|
||||
: Instruction(Type::VoidTy, Store,
|
||||
OperandTraits<StoreInst>::op_begin(this),
|
||||
OperandTraits<StoreInst>::operands(this),
|
||||
InsertAtEnd) {
|
||||
Op<0>().init(val, this);
|
||||
Op<1>().init(addr, this);
|
||||
setVolatile(isVolatile);
|
||||
setAlignment(Align);
|
||||
AssertOK();
|
||||
@ -918,9 +955,12 @@ StoreInst::StoreInst(Value *val, Value *addr, bool isVolatile,
|
||||
|
||||
StoreInst::StoreInst(Value *val, Value *addr, bool isVolatile,
|
||||
BasicBlock *InsertAtEnd)
|
||||
: Instruction(Type::VoidTy, Store, Ops, 2, InsertAtEnd) {
|
||||
Ops[0].init(val, this);
|
||||
Ops[1].init(addr, this);
|
||||
: Instruction(Type::VoidTy, Store,
|
||||
OperandTraits<StoreInst>::op_begin(this),
|
||||
OperandTraits<StoreInst>::operands(this),
|
||||
InsertAtEnd) {
|
||||
Op<0>().init(val, this);
|
||||
Op<1>().init(addr, this);
|
||||
setVolatile(isVolatile);
|
||||
setAlignment(0);
|
||||
AssertOK();
|
||||
@ -940,8 +980,8 @@ static unsigned retrieveAddrSpace(const Value *Val) {
|
||||
}
|
||||
|
||||
void GetElementPtrInst::init(Value *Ptr, Value* const *Idx, unsigned NumIdx) {
|
||||
NumOperands = 1+NumIdx;
|
||||
Use *OL = OperandList = new Use[NumOperands];
|
||||
assert(NumOperands == 1+NumIdx && "NumOperands not initialized?");
|
||||
Use *OL = OperandList;
|
||||
OL[0].init(Ptr, this);
|
||||
|
||||
for (unsigned i = 0; i != NumIdx; ++i)
|
||||
@ -949,17 +989,29 @@ void GetElementPtrInst::init(Value *Ptr, Value* const *Idx, unsigned NumIdx) {
|
||||
}
|
||||
|
||||
void GetElementPtrInst::init(Value *Ptr, Value *Idx) {
|
||||
NumOperands = 2;
|
||||
Use *OL = OperandList = new Use[2];
|
||||
assert(NumOperands == 2 && "NumOperands not initialized?");
|
||||
Use *OL = OperandList;
|
||||
OL[0].init(Ptr, this);
|
||||
OL[1].init(Idx, this);
|
||||
}
|
||||
|
||||
GetElementPtrInst::GetElementPtrInst(const GetElementPtrInst &GEPI)
|
||||
: Instruction(reinterpret_cast<const Type*>(GEPI.getType()), GetElementPtr,
|
||||
OperandTraits<GetElementPtrInst>::op_end(this) - GEPI.getNumOperands(),
|
||||
GEPI.getNumOperands()) {
|
||||
Use *OL = OperandList;
|
||||
Use *GEPIOL = GEPI.OperandList;
|
||||
for (unsigned i = 0, E = NumOperands; i != E; ++i)
|
||||
OL[i].init(GEPIOL[i], this);
|
||||
}
|
||||
|
||||
GetElementPtrInst::GetElementPtrInst(Value *Ptr, Value *Idx,
|
||||
const std::string &Name, Instruction *InBe)
|
||||
: Instruction(PointerType::get(checkType(getIndexedType(Ptr->getType(),Idx)),
|
||||
retrieveAddrSpace(Ptr)),
|
||||
GetElementPtr, 0, 0, InBe) {
|
||||
GetElementPtr,
|
||||
OperandTraits<GetElementPtrInst>::op_end(this) - 2,
|
||||
2, InBe) {
|
||||
init(Ptr, Idx);
|
||||
setName(Name);
|
||||
}
|
||||
@ -968,15 +1020,13 @@ GetElementPtrInst::GetElementPtrInst(Value *Ptr, Value *Idx,
|
||||
const std::string &Name, BasicBlock *IAE)
|
||||
: Instruction(PointerType::get(checkType(getIndexedType(Ptr->getType(),Idx)),
|
||||
retrieveAddrSpace(Ptr)),
|
||||
GetElementPtr, 0, 0, IAE) {
|
||||
GetElementPtr,
|
||||
OperandTraits<GetElementPtrInst>::op_end(this) - 2,
|
||||
2, IAE) {
|
||||
init(Ptr, Idx);
|
||||
setName(Name);
|
||||
}
|
||||
|
||||
GetElementPtrInst::~GetElementPtrInst() {
|
||||
delete[] OperandList;
|
||||
}
|
||||
|
||||
// getIndexedType - Returns the type of the element that would be loaded with
|
||||
// a load instruction with the specified parameters.
|
||||
//
|
||||
@ -1067,11 +1117,13 @@ ExtractElementInst::ExtractElementInst(Value *Val, Value *Index,
|
||||
const std::string &Name,
|
||||
Instruction *InsertBef)
|
||||
: Instruction(cast<VectorType>(Val->getType())->getElementType(),
|
||||
ExtractElement, Ops, 2, InsertBef) {
|
||||
ExtractElement,
|
||||
OperandTraits<ExtractElementInst>::op_begin(this),
|
||||
2, InsertBef) {
|
||||
assert(isValidOperands(Val, Index) &&
|
||||
"Invalid extractelement instruction operands!");
|
||||
Ops[0].init(Val, this);
|
||||
Ops[1].init(Index, this);
|
||||
Op<0>().init(Val, this);
|
||||
Op<1>().init(Index, this);
|
||||
setName(Name);
|
||||
}
|
||||
|
||||
@ -1079,12 +1131,14 @@ ExtractElementInst::ExtractElementInst(Value *Val, unsigned IndexV,
|
||||
const std::string &Name,
|
||||
Instruction *InsertBef)
|
||||
: Instruction(cast<VectorType>(Val->getType())->getElementType(),
|
||||
ExtractElement, Ops, 2, InsertBef) {
|
||||
ExtractElement,
|
||||
OperandTraits<ExtractElementInst>::op_begin(this),
|
||||
2, InsertBef) {
|
||||
Constant *Index = ConstantInt::get(Type::Int32Ty, IndexV);
|
||||
assert(isValidOperands(Val, Index) &&
|
||||
"Invalid extractelement instruction operands!");
|
||||
Ops[0].init(Val, this);
|
||||
Ops[1].init(Index, this);
|
||||
Op<0>().init(Val, this);
|
||||
Op<1>().init(Index, this);
|
||||
setName(Name);
|
||||
}
|
||||
|
||||
@ -1093,12 +1147,14 @@ ExtractElementInst::ExtractElementInst(Value *Val, Value *Index,
|
||||
const std::string &Name,
|
||||
BasicBlock *InsertAE)
|
||||
: Instruction(cast<VectorType>(Val->getType())->getElementType(),
|
||||
ExtractElement, Ops, 2, InsertAE) {
|
||||
ExtractElement,
|
||||
OperandTraits<ExtractElementInst>::op_begin(this),
|
||||
2, InsertAE) {
|
||||
assert(isValidOperands(Val, Index) &&
|
||||
"Invalid extractelement instruction operands!");
|
||||
|
||||
Ops[0].init(Val, this);
|
||||
Ops[1].init(Index, this);
|
||||
Op<0>().init(Val, this);
|
||||
Op<1>().init(Index, this);
|
||||
setName(Name);
|
||||
}
|
||||
|
||||
@ -1106,13 +1162,15 @@ ExtractElementInst::ExtractElementInst(Value *Val, unsigned IndexV,
|
||||
const std::string &Name,
|
||||
BasicBlock *InsertAE)
|
||||
: Instruction(cast<VectorType>(Val->getType())->getElementType(),
|
||||
ExtractElement, Ops, 2, InsertAE) {
|
||||
ExtractElement,
|
||||
OperandTraits<ExtractElementInst>::op_begin(this),
|
||||
2, InsertAE) {
|
||||
Constant *Index = ConstantInt::get(Type::Int32Ty, IndexV);
|
||||
assert(isValidOperands(Val, Index) &&
|
||||
"Invalid extractelement instruction operands!");
|
||||
|
||||
Ops[0].init(Val, this);
|
||||
Ops[1].init(Index, this);
|
||||
Op<0>().init(Val, this);
|
||||
Op<1>().init(Index, this);
|
||||
setName(Name);
|
||||
}
|
||||
|
||||
@ -1129,33 +1187,38 @@ bool ExtractElementInst::isValidOperands(const Value *Val, const Value *Index) {
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
InsertElementInst::InsertElementInst(const InsertElementInst &IE)
|
||||
: Instruction(IE.getType(), InsertElement, Ops, 3) {
|
||||
Ops[0].init(IE.Ops[0], this);
|
||||
Ops[1].init(IE.Ops[1], this);
|
||||
Ops[2].init(IE.Ops[2], this);
|
||||
: Instruction(IE.getType(), InsertElement,
|
||||
OperandTraits<InsertElementInst>::op_begin(this), 3) {
|
||||
Op<0>().init(IE.Op<0>(), this);
|
||||
Op<1>().init(IE.Op<1>(), this);
|
||||
Op<2>().init(IE.Op<2>(), this);
|
||||
}
|
||||
InsertElementInst::InsertElementInst(Value *Vec, Value *Elt, Value *Index,
|
||||
const std::string &Name,
|
||||
Instruction *InsertBef)
|
||||
: Instruction(Vec->getType(), InsertElement, Ops, 3, InsertBef) {
|
||||
: Instruction(Vec->getType(), InsertElement,
|
||||
OperandTraits<InsertElementInst>::op_begin(this),
|
||||
3, InsertBef) {
|
||||
assert(isValidOperands(Vec, Elt, Index) &&
|
||||
"Invalid insertelement instruction operands!");
|
||||
Ops[0].init(Vec, this);
|
||||
Ops[1].init(Elt, this);
|
||||
Ops[2].init(Index, this);
|
||||
Op<0>().init(Vec, this);
|
||||
Op<1>().init(Elt, this);
|
||||
Op<2>().init(Index, this);
|
||||
setName(Name);
|
||||
}
|
||||
|
||||
InsertElementInst::InsertElementInst(Value *Vec, Value *Elt, unsigned IndexV,
|
||||
const std::string &Name,
|
||||
Instruction *InsertBef)
|
||||
: Instruction(Vec->getType(), InsertElement, Ops, 3, InsertBef) {
|
||||
: Instruction(Vec->getType(), InsertElement,
|
||||
OperandTraits<InsertElementInst>::op_begin(this),
|
||||
3, InsertBef) {
|
||||
Constant *Index = ConstantInt::get(Type::Int32Ty, IndexV);
|
||||
assert(isValidOperands(Vec, Elt, Index) &&
|
||||
"Invalid insertelement instruction operands!");
|
||||
Ops[0].init(Vec, this);
|
||||
Ops[1].init(Elt, this);
|
||||
Ops[2].init(Index, this);
|
||||
Op<0>().init(Vec, this);
|
||||
Op<1>().init(Elt, this);
|
||||
Op<2>().init(Index, this);
|
||||
setName(Name);
|
||||
}
|
||||
|
||||
@ -1163,27 +1226,31 @@ InsertElementInst::InsertElementInst(Value *Vec, Value *Elt, unsigned IndexV,
|
||||
InsertElementInst::InsertElementInst(Value *Vec, Value *Elt, Value *Index,
|
||||
const std::string &Name,
|
||||
BasicBlock *InsertAE)
|
||||
: Instruction(Vec->getType(), InsertElement, Ops, 3, InsertAE) {
|
||||
: Instruction(Vec->getType(), InsertElement,
|
||||
OperandTraits<InsertElementInst>::op_begin(this),
|
||||
3, InsertAE) {
|
||||
assert(isValidOperands(Vec, Elt, Index) &&
|
||||
"Invalid insertelement instruction operands!");
|
||||
|
||||
Ops[0].init(Vec, this);
|
||||
Ops[1].init(Elt, this);
|
||||
Ops[2].init(Index, this);
|
||||
Op<0>().init(Vec, this);
|
||||
Op<1>().init(Elt, this);
|
||||
Op<2>().init(Index, this);
|
||||
setName(Name);
|
||||
}
|
||||
|
||||
InsertElementInst::InsertElementInst(Value *Vec, Value *Elt, unsigned IndexV,
|
||||
const std::string &Name,
|
||||
BasicBlock *InsertAE)
|
||||
: Instruction(Vec->getType(), InsertElement, Ops, 3, InsertAE) {
|
||||
: Instruction(Vec->getType(), InsertElement,
|
||||
OperandTraits<InsertElementInst>::op_begin(this),
|
||||
3, InsertAE) {
|
||||
Constant *Index = ConstantInt::get(Type::Int32Ty, IndexV);
|
||||
assert(isValidOperands(Vec, Elt, Index) &&
|
||||
"Invalid insertelement instruction operands!");
|
||||
|
||||
Ops[0].init(Vec, this);
|
||||
Ops[1].init(Elt, this);
|
||||
Ops[2].init(Index, this);
|
||||
Op<0>().init(Vec, this);
|
||||
Op<1>().init(Elt, this);
|
||||
Op<2>().init(Index, this);
|
||||
setName(Name);
|
||||
}
|
||||
|
||||
@ -1206,34 +1273,42 @@ bool InsertElementInst::isValidOperands(const Value *Vec, const Value *Elt,
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
ShuffleVectorInst::ShuffleVectorInst(const ShuffleVectorInst &SV)
|
||||
: Instruction(SV.getType(), ShuffleVector, Ops, 3) {
|
||||
Ops[0].init(SV.Ops[0], this);
|
||||
Ops[1].init(SV.Ops[1], this);
|
||||
Ops[2].init(SV.Ops[2], this);
|
||||
: Instruction(SV.getType(), ShuffleVector,
|
||||
OperandTraits<ShuffleVectorInst>::op_begin(this),
|
||||
OperandTraits<ShuffleVectorInst>::operands(this)) {
|
||||
Op<0>().init(SV.Op<0>(), this);
|
||||
Op<1>().init(SV.Op<1>(), this);
|
||||
Op<2>().init(SV.Op<2>(), this);
|
||||
}
|
||||
|
||||
ShuffleVectorInst::ShuffleVectorInst(Value *V1, Value *V2, Value *Mask,
|
||||
const std::string &Name,
|
||||
Instruction *InsertBefore)
|
||||
: Instruction(V1->getType(), ShuffleVector, Ops, 3, InsertBefore) {
|
||||
: Instruction(V1->getType(), ShuffleVector,
|
||||
OperandTraits<ShuffleVectorInst>::op_begin(this),
|
||||
OperandTraits<ShuffleVectorInst>::operands(this),
|
||||
InsertBefore) {
|
||||
assert(isValidOperands(V1, V2, Mask) &&
|
||||
"Invalid shuffle vector instruction operands!");
|
||||
Ops[0].init(V1, this);
|
||||
Ops[1].init(V2, this);
|
||||
Ops[2].init(Mask, this);
|
||||
Op<0>().init(V1, this);
|
||||
Op<1>().init(V2, this);
|
||||
Op<2>().init(Mask, this);
|
||||
setName(Name);
|
||||
}
|
||||
|
||||
ShuffleVectorInst::ShuffleVectorInst(Value *V1, Value *V2, Value *Mask,
|
||||
const std::string &Name,
|
||||
BasicBlock *InsertAtEnd)
|
||||
: Instruction(V1->getType(), ShuffleVector, Ops, 3, InsertAtEnd) {
|
||||
: Instruction(V1->getType(), ShuffleVector,
|
||||
OperandTraits<ShuffleVectorInst>::op_begin(this),
|
||||
OperandTraits<ShuffleVectorInst>::operands(this),
|
||||
InsertAtEnd) {
|
||||
assert(isValidOperands(V1, V2, Mask) &&
|
||||
"Invalid shuffle vector instruction operands!");
|
||||
|
||||
Ops[0].init(V1, this);
|
||||
Ops[1].init(V2, this);
|
||||
Ops[2].init(Mask, this);
|
||||
Op<0>().init(V1, this);
|
||||
Op<1>().init(V2, this);
|
||||
Op<2>().init(Mask, this);
|
||||
setName(Name);
|
||||
}
|
||||
|
||||
@ -1275,9 +1350,12 @@ int ShuffleVectorInst::getMaskValue(unsigned i) const {
|
||||
BinaryOperator::BinaryOperator(BinaryOps iType, Value *S1, Value *S2,
|
||||
const Type *Ty, const std::string &Name,
|
||||
Instruction *InsertBefore)
|
||||
: Instruction(Ty, iType, Ops, 2, InsertBefore) {
|
||||
Ops[0].init(S1, this);
|
||||
Ops[1].init(S2, this);
|
||||
: Instruction(Ty, iType,
|
||||
OperandTraits<BinaryOperator>::op_begin(this),
|
||||
OperandTraits<BinaryOperator>::operands(this),
|
||||
InsertBefore) {
|
||||
Op<0>().init(S1, this);
|
||||
Op<1>().init(S2, this);
|
||||
init(iType);
|
||||
setName(Name);
|
||||
}
|
||||
@ -1285,9 +1363,12 @@ BinaryOperator::BinaryOperator(BinaryOps iType, Value *S1, Value *S2,
|
||||
BinaryOperator::BinaryOperator(BinaryOps iType, Value *S1, Value *S2,
|
||||
const Type *Ty, const std::string &Name,
|
||||
BasicBlock *InsertAtEnd)
|
||||
: Instruction(Ty, iType, Ops, 2, InsertAtEnd) {
|
||||
Ops[0].init(S1, this);
|
||||
Ops[1].init(S2, this);
|
||||
: Instruction(Ty, iType,
|
||||
OperandTraits<BinaryOperator>::op_begin(this),
|
||||
OperandTraits<BinaryOperator>::operands(this),
|
||||
InsertAtEnd) {
|
||||
Op<0>().init(S1, this);
|
||||
Op<1>().init(S2, this);
|
||||
init(iType);
|
||||
setName(Name);
|
||||
}
|
||||
@ -1482,7 +1563,7 @@ const Value *BinaryOperator::getNotArgument(const Value *BinOp) {
|
||||
bool BinaryOperator::swapOperands() {
|
||||
if (!isCommutative())
|
||||
return true; // Can't commute operands
|
||||
std::swap(Ops[0], Ops[1]);
|
||||
std::swap(Op<0>(), Op<1>());
|
||||
return false;
|
||||
}
|
||||
|
||||
@ -2254,9 +2335,12 @@ BitCastInst::BitCastInst(
|
||||
|
||||
CmpInst::CmpInst(OtherOps op, unsigned short predicate, Value *LHS, Value *RHS,
|
||||
const std::string &Name, Instruction *InsertBefore)
|
||||
: Instruction(Type::Int1Ty, op, Ops, 2, InsertBefore) {
|
||||
Ops[0].init(LHS, this);
|
||||
Ops[1].init(RHS, this);
|
||||
: Instruction(Type::Int1Ty, op,
|
||||
OperandTraits<CmpInst>::op_begin(this),
|
||||
OperandTraits<CmpInst>::operands(this),
|
||||
InsertBefore) {
|
||||
Op<0>().init(LHS, this);
|
||||
Op<1>().init(RHS, this);
|
||||
SubclassData = predicate;
|
||||
setName(Name);
|
||||
if (op == Instruction::ICmp) {
|
||||
@ -2283,12 +2367,15 @@ CmpInst::CmpInst(OtherOps op, unsigned short predicate, Value *LHS, Value *RHS,
|
||||
assert(Op0Ty->isFloatingPoint() &&
|
||||
"Invalid operand types for FCmp instruction");
|
||||
}
|
||||
|
||||
|
||||
CmpInst::CmpInst(OtherOps op, unsigned short predicate, Value *LHS, Value *RHS,
|
||||
const std::string &Name, BasicBlock *InsertAtEnd)
|
||||
: Instruction(Type::Int1Ty, op, Ops, 2, InsertAtEnd) {
|
||||
Ops[0].init(LHS, this);
|
||||
Ops[1].init(RHS, this);
|
||||
: Instruction(Type::Int1Ty, op,
|
||||
OperandTraits<CmpInst>::op_begin(this),
|
||||
OperandTraits<CmpInst>::operands(this),
|
||||
InsertAtEnd) {
|
||||
Op<0>().init(LHS, this);
|
||||
Op<1>().init(RHS, this);
|
||||
SubclassData = predicate;
|
||||
setName(Name);
|
||||
if (op == Instruction::ICmp) {
|
||||
@ -2548,7 +2635,7 @@ void SwitchInst::init(Value *Value, BasicBlock *Default, unsigned NumCases) {
|
||||
assert(Value && Default);
|
||||
ReservedSpace = 2+NumCases*2;
|
||||
NumOperands = 2;
|
||||
OperandList = new Use[ReservedSpace];
|
||||
OperandList = allocHungoffUses(ReservedSpace);
|
||||
|
||||
OperandList[0].init(Value, this);
|
||||
OperandList[1].init(Default, this);
|
||||
@ -2576,7 +2663,7 @@ SwitchInst::SwitchInst(Value *Value, BasicBlock *Default, unsigned NumCases,
|
||||
|
||||
SwitchInst::SwitchInst(const SwitchInst &SI)
|
||||
: TerminatorInst(Type::VoidTy, Instruction::Switch,
|
||||
new Use[SI.getNumOperands()], SI.getNumOperands()) {
|
||||
allocHungoffUses(SI.getNumOperands()), SI.getNumOperands()) {
|
||||
Use *OL = OperandList, *InOL = SI.OperandList;
|
||||
for (unsigned i = 0, E = SI.getNumOperands(); i != E; i+=2) {
|
||||
OL[i].init(InOL[i], this);
|
||||
@ -2585,7 +2672,7 @@ SwitchInst::SwitchInst(const SwitchInst &SI)
|
||||
}
|
||||
|
||||
SwitchInst::~SwitchInst() {
|
||||
delete [] OperandList;
|
||||
dropHungoffUses(OperandList);
|
||||
}
|
||||
|
||||
|
||||
@ -2632,13 +2719,14 @@ void SwitchInst::removeCase(unsigned idx) {
|
||||
/// resizeOperands - resize operands - This adjusts the length of the operands
|
||||
/// list according to the following behavior:
|
||||
/// 1. If NumOps == 0, grow the operand list in response to a push_back style
|
||||
/// of operation. This grows the number of ops by 1.5 times.
|
||||
/// of operation. This grows the number of ops by 3 times.
|
||||
/// 2. If NumOps > NumOperands, reserve space for NumOps operands.
|
||||
/// 3. If NumOps == NumOperands, trim the reserved space.
|
||||
///
|
||||
void SwitchInst::resizeOperands(unsigned NumOps) {
|
||||
unsigned e = getNumOperands();
|
||||
if (NumOps == 0) {
|
||||
NumOps = getNumOperands()/2*6;
|
||||
NumOps = e*3;
|
||||
} else if (NumOps*2 > NumOperands) {
|
||||
// No resize needed.
|
||||
if (ReservedSpace >= NumOps) return;
|
||||
@ -2649,14 +2737,13 @@ void SwitchInst::resizeOperands(unsigned NumOps) {
|
||||
}
|
||||
|
||||
ReservedSpace = NumOps;
|
||||
Use *NewOps = new Use[NumOps];
|
||||
Use *NewOps = allocHungoffUses(NumOps);
|
||||
Use *OldOps = OperandList;
|
||||
for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
|
||||
for (unsigned i = 0; i != e; ++i) {
|
||||
NewOps[i].init(OldOps[i], this);
|
||||
OldOps[i].set(0);
|
||||
}
|
||||
delete [] OldOps;
|
||||
OperandList = NewOps;
|
||||
if (OldOps) Use::zap(OldOps, OldOps + e, true);
|
||||
}
|
||||
|
||||
|
||||
@ -2678,9 +2765,12 @@ GetResultInst::GetResultInst(Value *Aggregate, unsigned Index,
|
||||
const std::string &Name,
|
||||
Instruction *InsertBef)
|
||||
: Instruction(cast<StructType>(Aggregate->getType())->getElementType(Index),
|
||||
GetResult, &Aggr, 1, InsertBef) {
|
||||
GetResult,
|
||||
OperandTraits<GetResultInst>::op_begin(this),
|
||||
OperandTraits<GetResultInst>::operands(this),
|
||||
InsertBef) {
|
||||
assert(isValidOperands(Aggregate, Index) && "Invalid GetResultInst operands!");
|
||||
Aggr.init(Aggregate, this);
|
||||
Op<0>().init(Aggregate, this);
|
||||
Idx = Index;
|
||||
setName(Name);
|
||||
}
|
||||
@ -2714,14 +2804,14 @@ GetElementPtrInst *GetElementPtrInst::clone() const {
|
||||
}
|
||||
|
||||
BinaryOperator *BinaryOperator::clone() const {
|
||||
return create(getOpcode(), Ops[0], Ops[1]);
|
||||
return create(getOpcode(), Op<0>(), Op<1>());
|
||||
}
|
||||
|
||||
FCmpInst* FCmpInst::clone() const {
|
||||
return new FCmpInst(getPredicate(), Ops[0], Ops[1]);
|
||||
return new FCmpInst(getPredicate(), Op<0>(), Op<1>());
|
||||
}
|
||||
ICmpInst* ICmpInst::clone() const {
|
||||
return new ICmpInst(getPredicate(), Ops[0], Ops[1]);
|
||||
return new ICmpInst(getPredicate(), Op<0>(), Op<1>());
|
||||
}
|
||||
|
||||
MallocInst *MallocInst::clone() const { return new MallocInst(*this); }
|
||||
@ -2757,7 +2847,7 @@ ShuffleVectorInst *ShuffleVectorInst::clone() const {
|
||||
PHINode *PHINode::clone() const { return new PHINode(*this); }
|
||||
ReturnInst *ReturnInst::clone() const { return new(getNumOperands()) ReturnInst(*this); }
|
||||
BranchInst *BranchInst::clone() const { return new(getNumOperands()) BranchInst(*this); }
|
||||
SwitchInst *SwitchInst::clone() const { return new(getNumOperands()) SwitchInst(*this); }
|
||||
SwitchInst *SwitchInst::clone() const { return new SwitchInst(*this); }
|
||||
InvokeInst *InvokeInst::clone() const { return new(getNumOperands()) InvokeInst(*this); }
|
||||
UnwindInst *UnwindInst::clone() const { return new UnwindInst(); }
|
||||
UnreachableInst *UnreachableInst::clone() const { return new UnreachableInst();}
|
||||
|
131
lib/VMCore/Use.cpp
Normal file
131
lib/VMCore/Use.cpp
Normal file
@ -0,0 +1,131 @@
|
||||
//===-- Use.cpp - Implement the Use class -------------------------------===//
|
||||
//
|
||||
// The LLVM Compiler Infrastructure
|
||||
//
|
||||
// This file is distributed under the University of Illinois Open Source
|
||||
// License. See LICENSE.TXT for details.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// This file implements the algorithm for finding the User of a Use.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#include "llvm/User.h"
|
||||
|
||||
namespace llvm {
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Use getImpliedUser Implementation
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
const Use *Use::getImpliedUser() const {
|
||||
const Use *Current = this;
|
||||
|
||||
while (true) {
|
||||
unsigned Tag = extractTag<PrevPtrTag, fullStopTag>((Current++)->Prev);
|
||||
switch (Tag) {
|
||||
case zeroDigitTag:
|
||||
case oneDigitTag:
|
||||
continue;
|
||||
|
||||
case stopTag: {
|
||||
++Current;
|
||||
ptrdiff_t Offset = 1;
|
||||
while (true) {
|
||||
unsigned Tag = extractTag<PrevPtrTag, fullStopTag>(Current->Prev);
|
||||
switch (Tag) {
|
||||
case zeroDigitTag:
|
||||
case oneDigitTag:
|
||||
++Current;
|
||||
Offset = (Offset << 1) + Tag;
|
||||
continue;
|
||||
default:
|
||||
return Current + Offset;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
case fullStopTag:
|
||||
return Current;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Use initTags Implementation
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
Use *Use::initTags(Use * const Start, Use *Stop, ptrdiff_t Done) {
|
||||
ptrdiff_t Count = Done;
|
||||
while (Start != Stop) {
|
||||
--Stop;
|
||||
Stop->Val = 0;
|
||||
if (!Count) {
|
||||
Stop->Prev = reinterpret_cast<Use**>(Done == 0 ? fullStopTag : stopTag);
|
||||
++Done;
|
||||
Count = Done;
|
||||
} else {
|
||||
Stop->Prev = reinterpret_cast<Use**>(Count & 1);
|
||||
Count >>= 1;
|
||||
++Done;
|
||||
}
|
||||
}
|
||||
|
||||
return Start;
|
||||
}
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Use zap Implementation
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
void Use::zap(Use *Start, const Use *Stop, bool del) {
|
||||
if (del) {
|
||||
while (Start != Stop) {
|
||||
(--Stop)->~Use();
|
||||
}
|
||||
::operator delete(Start);
|
||||
return;
|
||||
}
|
||||
|
||||
while (Start != Stop) {
|
||||
(Start++)->set(0);
|
||||
}
|
||||
}
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// AugmentedUse layout struct
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
struct AugmentedUse : Use {
|
||||
User *ref;
|
||||
AugmentedUse(); // not implemented
|
||||
};
|
||||
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Use getUser Implementation
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
User *Use::getUser() const {
|
||||
const Use *End = getImpliedUser();
|
||||
User *She = static_cast<const AugmentedUse*>(End - 1)->ref;
|
||||
She = extractTag<Tag, tagOne>(She)
|
||||
? llvm::stripTag<tagOne>(She)
|
||||
: reinterpret_cast<User*>(const_cast<Use*>(End));
|
||||
|
||||
return She;
|
||||
}
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// User allocHungoffUses Implementation
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
Use *User::allocHungoffUses(unsigned N) const {
|
||||
Use *Begin = static_cast<Use*>(::operator new(sizeof(Use) * N + sizeof(AugmentedUse) - sizeof(Use)));
|
||||
Use *End = Begin + N;
|
||||
static_cast<AugmentedUse&>(End[-1]).ref = addTag(this, tagOne);
|
||||
return Use::initTags(Begin, End);
|
||||
}
|
||||
|
||||
} // End llvm namespace
|
Loading…
Reference in New Issue
Block a user