freebsd-nq/contrib/llvm/lib/CodeGen/PHIEliminationUtils.h
Dimitry Andric f785676f2a Upgrade our copy of llvm/clang to 3.4 release. This version supports
all of the features in the current working draft of the upcoming C++
standard, provisionally named C++1y.

The code generator's performance is greatly increased, and the loop
auto-vectorizer is now enabled at -Os and -O2 in addition to -O3.  The
PowerPC backend has made several major improvements to code generation
quality and compile time, and the X86, SPARC, ARM32, Aarch64 and SystemZ
backends have all seen major feature work.

Release notes for llvm and clang can be found here:
<http://llvm.org/releases/3.4/docs/ReleaseNotes.html>
<http://llvm.org/releases/3.4/tools/clang/docs/ReleaseNotes.html>

MFC after:	1 month
2014-02-16 19:44:07 +00:00

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936 B
C++

//=- PHIEliminationUtils.h - Helper functions for PHI elimination -*- C++ -*-=//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CODEGEN_PHIELIMINATIONUTILS_H
#define LLVM_CODEGEN_PHIELIMINATIONUTILS_H
#include "llvm/CodeGen/MachineBasicBlock.h"
namespace llvm {
/// findPHICopyInsertPoint - Find a safe place in MBB to insert a copy from
/// SrcReg when following the CFG edge to SuccMBB. This needs to be after
/// any def of SrcReg, but before any subsequent point where control flow
/// might jump out of the basic block.
MachineBasicBlock::iterator
findPHICopyInsertPoint(MachineBasicBlock* MBB, MachineBasicBlock* SuccMBB,
unsigned SrcReg);
}
#endif