X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FAnalysis%2FConstantsScanner.h;h=cdaf68d75a6399fac3c35648f3ce8ae79b1cceea;hb=326ae27c4f744cc7fb43f5a413d042d54fc1ddc0;hp=1d7167673248c4c37ba338d1429182c5eb97abbe;hpb=48486893f46d2e12e926682a3ecb908716bc66c4;p=oota-llvm.git diff --git a/include/llvm/Analysis/ConstantsScanner.h b/include/llvm/Analysis/ConstantsScanner.h index 1d716767324..cdaf68d75a6 100644 --- a/include/llvm/Analysis/ConstantsScanner.h +++ b/include/llvm/Analysis/ConstantsScanner.h @@ -1,7 +1,14 @@ //==- llvm/Analysis/ConstantsScanner.h - Iterate over constants -*- C++ -*-===// // +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// // This class implements an iterator to walk through the constants referenced by -// a method. This is used by the Bytecode & Assembly writers to build constant +// a method. This is used by the Bitcode & Assembly writers to build constant // pools. // //===----------------------------------------------------------------------===// @@ -10,11 +17,13 @@ #define LLVM_ANALYSIS_CONSTANTSSCANNER_H #include "llvm/Support/InstIterator.h" -#include "llvm/Instruction.h" -#include "Support/iterator" + +namespace llvm { + class Constant; -class constant_iterator : public forward_iterator { +class constant_iterator : public std::iterator { const_inst_iterator InstI; // Method instruction iterator unsigned OpIdx; // Operand index @@ -22,7 +31,7 @@ class constant_iterator : public forward_iterator { inline bool isAtConstant() const { assert(!InstI.atEnd() && OpIdx < InstI->getNumOperands() && - "isAtConstant called with invalid arguments!"); + "isAtConstant called with invalid arguments!"); return isa(InstI->getOperand(OpIdx)); } @@ -30,7 +39,7 @@ public: inline constant_iterator(const Function *F) : InstI(inst_begin(F)), OpIdx(0) { // Advance to first constant... if we are not already at constant or end if (InstI != inst_end(F) && // InstI is valid? - (InstI->getNumOperands() == 0 || !isAtConstant())) // Not at constant? + (InstI->getNumOperands() == 0 || !isAtConstant())) // Not at constant? operator++(); } @@ -38,8 +47,8 @@ public: : InstI(inst_end(F)), OpIdx(0) { } - inline bool operator==(const _Self& x) const { return OpIdx == x.OpIdx && - InstI == x.InstI; } + inline bool operator==(const _Self& x) const { return OpIdx == x.OpIdx && + InstI == x.InstI; } inline bool operator!=(const _Self& x) const { return !operator==(x); } inline pointer operator*() const { @@ -53,7 +62,7 @@ public: do { unsigned NumOperands = InstI->getNumOperands(); while (OpIdx < NumOperands && !isAtConstant()) { - ++OpIdx; + ++OpIdx; } if (OpIdx < NumOperands) return *this; // Found a constant! @@ -65,7 +74,7 @@ public: } inline _Self operator++(int) { // Postincrement - _Self tmp = *this; ++*this; return tmp; + _Self tmp = *this; ++*this; return tmp; } inline bool atEnd() const { return InstI.atEnd(); } @@ -79,4 +88,6 @@ inline constant_iterator constant_end(const Function *F) { return constant_iterator(F, true); } +} // End llvm namespace + #endif