From c80ac9d286b8fcc6d1ee5d76048134cf80aa9edc Mon Sep 17 00:00:00 2001 From: dim Date: Sat, 26 Feb 2011 22:03:50 +0000 Subject: Vendor import of llvm trunk r126547: http://llvm.org/svn/llvm-project/llvm/trunk@126547 --- lib/Target/ARM/ARMISelDAGToDAG.cpp | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'lib/Target/ARM/ARMISelDAGToDAG.cpp') diff --git a/lib/Target/ARM/ARMISelDAGToDAG.cpp b/lib/Target/ARM/ARMISelDAGToDAG.cpp index a506cff..f0d5a7d 100644 --- a/lib/Target/ARM/ARMISelDAGToDAG.cpp +++ b/lib/Target/ARM/ARMISelDAGToDAG.cpp @@ -126,6 +126,7 @@ public: bool SelectAddrMode5(SDValue N, SDValue &Base, SDValue &Offset); bool SelectAddrMode6(SDNode *Parent, SDValue N, SDValue &Addr,SDValue &Align); + bool SelectAddrMode6Offset(SDNode *Op, SDValue N, SDValue &Offset); bool SelectAddrModePC(SDValue N, SDValue &Offset, SDValue &Label); @@ -886,6 +887,20 @@ bool ARMDAGToDAGISel::SelectAddrMode6(SDNode *Parent, SDValue N, SDValue &Addr, return true; } +bool ARMDAGToDAGISel::SelectAddrMode6Offset(SDNode *Op, SDValue N, + SDValue &Offset) { + LSBaseSDNode *LdSt = cast(Op); + ISD::MemIndexedMode AM = LdSt->getAddressingMode(); + if (AM != ISD::POST_INC) + return false; + Offset = N; + if (ConstantSDNode *NC = dyn_cast(N)) { + if (NC->getZExtValue() * 8 == LdSt->getMemoryVT().getSizeInBits()) + Offset = CurDAG->getRegister(0, MVT::i32); + } + return true; +} + bool ARMDAGToDAGISel::SelectAddrModePC(SDValue N, SDValue &Offset, SDValue &Label) { if (N.getOpcode() == ARMISD::PIC_ADD && N.hasOneUse()) { -- cgit v1.1