//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
namespace llvm {
struct AssemblyAnnotationWriter;
-class BinaryOperator;
template<typename ValueSubClass, typename ItemParentClass>
class SymbolTableListTraits;
///
bool mayWriteToMemory() const;
+ /// mayReadFromMemory - Return true if this instruction may read memory.
+ ///
+ bool mayReadFromMemory() const;
+
/// clone() - Create a copy of 'this' instruction that is identical in all
/// ways except the following:
/// * The instruction has no parent
/// @brief Determine if one instruction is the same operation as another.
bool isSameOperationAs(Instruction *I) const;
+ /// isUsedOutsideOfBlock - Return true if there are any uses of this
+ /// instruction in blocks other than the specified block. Note that PHI nodes
+ /// are considered to evaluate their operands in the corresponding predecessor
+ /// block.
+ bool isUsedOutsideOfBlock(const BasicBlock *BB) const;
+
+
/// use_back - Specialize the methods defined in Value, as we know that an
/// instruction can only be used by other instructions.
Instruction *use_back() { return cast<Instruction>(*use_begin());}
///
void eraseFromParent();
+ /// insertBefore - Insert an unlinked instructions into a basic block
+ /// immediately before the specified instruction.
+ void insertBefore(Instruction *InsertPos);
+
/// moveBefore - Unlink this instruction from its current basic block and
/// insert it into the basic block that MovePos lives in, right before
/// MovePos.
/// isLogicalShift - Return true if this is a logical shift left or a logical
/// shift right.
- inline bool isLogicalShift() {
+ inline bool isLogicalShift() const {
return getOpcode() == Shl || getOpcode() == LShr;
}
/// isLogicalShift - Return true if this is a logical shift left or a logical
/// shift right.
- inline bool isArithmeticShift() {
+ inline bool isArithmeticShift() const {
return getOpcode() == AShr;
}