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Diffstat (limited to 'release_23/include/llvm/Analysis/Trace.h')
| -rw-r--r-- | release_23/include/llvm/Analysis/Trace.h | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/release_23/include/llvm/Analysis/Trace.h b/release_23/include/llvm/Analysis/Trace.h deleted file mode 100644 index fd615fcdae08..000000000000 --- a/release_23/include/llvm/Analysis/Trace.h +++ /dev/null @@ -1,120 +0,0 @@ -//===- llvm/Analysis/Trace.h - Represent one trace of LLVM code -*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This class represents a single trace of LLVM basic blocks. A trace is a -// single entry, multiple exit, region of code that is often hot. Trace-based -// optimizations treat traces almost like they are a large, strange, basic -// block: because the trace path is assumed to be hot, optimizations for the -// fall-through path are made at the expense of the non-fall-through paths. -// -//===----------------------------------------------------------------------===// - -#ifndef LLVM_ANALYSIS_TRACE_H -#define LLVM_ANALYSIS_TRACE_H - -#include "llvm/Support/Streams.h" -#include <vector> -#include <cassert> - -namespace llvm { - class BasicBlock; - class Function; - class Module; - -class Trace { - typedef std::vector<BasicBlock *> BasicBlockListType; - BasicBlockListType BasicBlocks; - -public: - /// Trace ctor - Make a new trace from a vector of basic blocks, - /// residing in the function which is the parent of the first - /// basic block in the vector. - /// - Trace(const std::vector<BasicBlock *> &vBB) : BasicBlocks (vBB) {} - - /// getEntryBasicBlock - Return the entry basic block (first block) - /// of the trace. - /// - BasicBlock *getEntryBasicBlock () const { return BasicBlocks[0]; } - - /// operator[]/getBlock - Return basic block N in the trace. - /// - BasicBlock *operator[](unsigned i) const { return BasicBlocks[i]; } - BasicBlock *getBlock(unsigned i) const { return BasicBlocks[i]; } - - /// getFunction - Return this trace's parent function. - /// - Function *getFunction () const; - - /// getModule - Return this Module that contains this trace's parent - /// function. - /// - Module *getModule () const; - - /// getBlockIndex - Return the index of the specified basic block in the - /// trace, or -1 if it is not in the trace. - int getBlockIndex(const BasicBlock *X) const { - for (unsigned i = 0, e = BasicBlocks.size(); i != e; ++i) - if (BasicBlocks[i] == X) - return i; - return -1; - } - - /// contains - Returns true if this trace contains the given basic - /// block. - /// - bool contains(const BasicBlock *X) const { - return getBlockIndex(X) != -1; - } - - /// Returns true if B1 occurs before B2 in the trace, or if it is the same - /// block as B2.. Both blocks must be in the trace. - /// - bool dominates(const BasicBlock *B1, const BasicBlock *B2) const { - int B1Idx = getBlockIndex(B1), B2Idx = getBlockIndex(B2); - assert(B1Idx != -1 && B2Idx != -1 && "Block is not in the trace!"); - return B1Idx <= B2Idx; - } - - // BasicBlock iterators... - typedef BasicBlockListType::iterator iterator; - typedef BasicBlockListType::const_iterator const_iterator; - typedef std::reverse_iterator<const_iterator> const_reverse_iterator; - typedef std::reverse_iterator<iterator> reverse_iterator; - - iterator begin() { return BasicBlocks.begin(); } - const_iterator begin() const { return BasicBlocks.begin(); } - iterator end () { return BasicBlocks.end(); } - const_iterator end () const { return BasicBlocks.end(); } - - reverse_iterator rbegin() { return BasicBlocks.rbegin(); } - const_reverse_iterator rbegin() const { return BasicBlocks.rbegin(); } - reverse_iterator rend () { return BasicBlocks.rend(); } - const_reverse_iterator rend () const { return BasicBlocks.rend(); } - - unsigned size() const { return BasicBlocks.size(); } - bool empty() const { return BasicBlocks.empty(); } - - iterator erase(iterator q) { return BasicBlocks.erase (q); } - iterator erase(iterator q1, iterator q2) { return BasicBlocks.erase (q1, q2); } - - /// print - Write trace to output stream. - /// - void print (std::ostream &O) const; - void print (std::ostream *O) const { if (O) print(*O); } - - /// dump - Debugger convenience method; writes trace to standard error - /// output stream. - /// - void dump () const; -}; - -} // end namespace llvm - -#endif // TRACE_H |