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ce63ffb52f
- Some clients which used DOUT have moved to DEBUG. We are deprecating the "magic" DOUT behavior which avoided calling printing functions when the statement was disabled. In addition to being unnecessary magic, it had the downside of leaving code in -Asserts builds, and of hiding potentially unnecessary computations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77019 91177308-0d34-0410-b5e6-96231b3b80d8
51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
//===- Trace.cpp - Implementation of Trace class --------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This class represents a single trace of LLVM basic blocks. A trace is a
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// single entry, multiple exit, region of code that is often hot. Trace-based
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// optimizations treat traces almost like they are a large, strange, basic
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// block: because the trace path is assumed to be hot, optimizations for the
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// fall-through path are made at the expense of the non-fall-through paths.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Analysis/Trace.h"
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#include "llvm/Function.h"
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#include "llvm/Assembly/Writer.h"
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#include "llvm/Support/Streams.h"
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using namespace llvm;
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Function *Trace::getFunction() const {
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return getEntryBasicBlock()->getParent();
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}
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Module *Trace::getModule() const {
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return getFunction()->getParent();
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}
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/// print - Write trace to output stream.
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///
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void Trace::print(std::ostream &O) const {
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Function *F = getFunction ();
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O << "; Trace from function " << F->getNameStr() << ", blocks:\n";
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for (const_iterator i = begin(), e = end(); i != e; ++i) {
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O << "; ";
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WriteAsOperand(O, *i, true, getModule());
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O << "\n";
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}
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O << "; Trace parent function: \n" << *F;
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}
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/// dump - Debugger convenience method; writes trace to standard error
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/// output stream.
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///
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void Trace::dump() const {
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print(cerr);
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}
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