mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-19 04:29:21 +00:00
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14622 91177308-0d34-0410-b5e6-96231b3b80d8
53 lines
1.6 KiB
C++
53 lines
1.6 KiB
C++
//===- Trace.cpp - Implementation of Trace class --------------------------===//
|
|
//
|
|
// 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 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.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Analysis/Trace.h"
|
|
#include "llvm/Function.h"
|
|
#include "llvm/Assembly/Writer.h"
|
|
#include <iostream>
|
|
|
|
using namespace llvm;
|
|
|
|
Function *Trace::getFunction() const {
|
|
return getEntryBasicBlock()->getParent();
|
|
}
|
|
|
|
|
|
Module *Trace::getModule() const {
|
|
return getFunction()->getParent();
|
|
}
|
|
|
|
/// print - Write trace to output stream.
|
|
///
|
|
void Trace::print (std::ostream &O) const {
|
|
Function *F = getFunction ();
|
|
O << "; Trace from function " << F->getName () << ", blocks:\n";
|
|
for (const_iterator i = begin (), e = end (); i != e; ++i) {
|
|
O << "; ";
|
|
WriteAsOperand (O, *i, true, true, getModule ());
|
|
O << "\n";
|
|
}
|
|
O << "; Trace parent function: \n" << *F;
|
|
}
|
|
|
|
/// dump - Debugger convenience method; writes trace to standard error
|
|
/// output stream.
|
|
///
|
|
void Trace::dump () const {
|
|
print (std::cerr);
|
|
}
|