diff options
| -rw-r--r-- | lib/Target/X86/X86ISelDAGToDAG.cpp | 26 |
1 files changed, 1 insertions, 25 deletions
diff --git a/lib/Target/X86/X86ISelDAGToDAG.cpp b/lib/Target/X86/X86ISelDAGToDAG.cpp index a9a78be3e3..846c23f0a0 100644 --- a/lib/Target/X86/X86ISelDAGToDAG.cpp +++ b/lib/Target/X86/X86ISelDAGToDAG.cpp @@ -50,9 +50,6 @@ #include "llvm/ADT/Statistic.h" using namespace llvm; -#include "llvm/Support/CommandLine.h" -static cl::opt<bool> AvoidDupAddrCompute("x86-avoid-dup-address", cl::Hidden); - STATISTIC(NumLoadMoved, "Number of loads moved below TokenFactor"); //===----------------------------------------------------------------------===// @@ -1275,28 +1272,7 @@ bool X86DAGToDAGISel::SelectAddr(SDValue Op, SDValue N, SDValue &Base, SDValue &Scale, SDValue &Index, SDValue &Disp, SDValue &Segment) { X86ISelAddressMode AM; - bool Done = false; - if (AvoidDupAddrCompute && !N.hasOneUse()) { - unsigned Opcode = N.getOpcode(); - if (Opcode != ISD::Constant && Opcode != ISD::FrameIndex && - Opcode != X86ISD::Wrapper && Opcode != X86ISD::WrapperRIP) { - // If we are able to fold N into addressing mode, then we'll allow it even - // if N has multiple uses. In general, addressing computation is used as - // addresses by all of its uses. But watch out for CopyToReg uses, that - // means the address computation is liveout. It will be computed by a LEA - // so we want to avoid computing the address twice. - for (SDNode::use_iterator UI = N.getNode()->use_begin(), - UE = N.getNode()->use_end(); UI != UE; ++UI) { - if (UI->getOpcode() == ISD::CopyToReg) { - MatchAddressBase(N, AM); - Done = true; - break; - } - } - } - } - - if (!Done && MatchAddress(N, AM)) + if (MatchAddress(N, AM)) return false; EVT VT = N.getValueType(); |