llvm-6502/lib/Target/NVPTX/NVPTXISelDAGToDAG.h
Justin Holewinski cb8f98382b [NVPTX] Fix handling of ldg/ldu intrinsics.
The address space of the pointer must be global (1) for these intrinsics.  There must also be alignment metadata attached to the intrinsic calls, e.g.

%val = tail call i32 @llvm.nvvm.ldu.i.global.i32.p1i32(i32 addrspace(1)* %ptr), !align !0

!0 = metadata !{i32 4}

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211939 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-27 18:35:51 +00:00

102 lines
3.3 KiB
C++

//===-- NVPTXISelDAGToDAG.h - A dag to dag inst selector for NVPTX --------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines an instruction selector for the NVPTX target.
//
//===----------------------------------------------------------------------===//
#include "NVPTX.h"
#include "NVPTXISelLowering.h"
#include "NVPTXRegisterInfo.h"
#include "NVPTXTargetMachine.h"
#include "llvm/CodeGen/SelectionDAGISel.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/Support/Compiler.h"
using namespace llvm;
namespace {
class LLVM_LIBRARY_VISIBILITY NVPTXDAGToDAGISel : public SelectionDAGISel {
// If true, generate corresponding FPCONTRACT. This is
// language dependent (i.e. CUDA and OpenCL works differently).
bool doFMAF64;
bool doFMAF32;
bool doFMAF64AGG;
bool doFMAF32AGG;
bool allowFMA;
// If true, generate mul.wide from sext and mul
bool doMulWide;
int getDivF32Level() const;
bool usePrecSqrtF32() const;
bool useF32FTZ() const;
public:
explicit NVPTXDAGToDAGISel(NVPTXTargetMachine &tm,
CodeGenOpt::Level OptLevel);
// Pass Name
const char *getPassName() const override {
return "NVPTX DAG->DAG Pattern Instruction Selection";
}
const NVPTXSubtarget &Subtarget;
bool SelectInlineAsmMemoryOperand(const SDValue &Op,
char ConstraintCode,
std::vector<SDValue> &OutOps) override;
private:
// Include the pieces autogenerated from the target description.
#include "NVPTXGenDAGISel.inc"
SDNode *Select(SDNode *N) override;
SDNode *SelectIntrinsicNoChain(SDNode *N);
SDNode *SelectIntrinsicChain(SDNode *N);
SDNode *SelectTexSurfHandle(SDNode *N);
SDNode *SelectLoad(SDNode *N);
SDNode *SelectLoadVector(SDNode *N);
SDNode *SelectLDGLDU(SDNode *N);
SDNode *SelectStore(SDNode *N);
SDNode *SelectStoreVector(SDNode *N);
SDNode *SelectLoadParam(SDNode *N);
SDNode *SelectStoreRetval(SDNode *N);
SDNode *SelectStoreParam(SDNode *N);
SDNode *SelectAddrSpaceCast(SDNode *N);
SDNode *SelectTextureIntrinsic(SDNode *N);
SDNode *SelectSurfaceIntrinsic(SDNode *N);
SDNode *SelectBFE(SDNode *N);
inline SDValue getI32Imm(unsigned Imm) {
return CurDAG->getTargetConstant(Imm, MVT::i32);
}
// Match direct address complex pattern.
bool SelectDirectAddr(SDValue N, SDValue &Address);
bool SelectADDRri_imp(SDNode *OpNode, SDValue Addr, SDValue &Base,
SDValue &Offset, MVT mvt);
bool SelectADDRri(SDNode *OpNode, SDValue Addr, SDValue &Base,
SDValue &Offset);
bool SelectADDRri64(SDNode *OpNode, SDValue Addr, SDValue &Base,
SDValue &Offset);
bool SelectADDRsi_imp(SDNode *OpNode, SDValue Addr, SDValue &Base,
SDValue &Offset, MVT mvt);
bool SelectADDRsi(SDNode *OpNode, SDValue Addr, SDValue &Base,
SDValue &Offset);
bool SelectADDRsi64(SDNode *OpNode, SDValue Addr, SDValue &Base,
SDValue &Offset);
bool ChkMemSDNodeAddressSpace(SDNode *N, unsigned int spN) const;
};
}