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https://github.com/c64scene-ar/llvm-6502.git
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67f6425792
Summary: The operand flag word for ISD::INLINEASM nodes now contains a 15-bit memory constraint ID when the operand kind is Kind_Mem. This constraint ID is a numeric equivalent to the constraint code string and is converted with a target specific hook in TargetLowering. This patch maps all memory constraints to InlineAsm::Constraint_m so there is no functional change at this point. It just proves that using these previously unused bits in the encoding of the flag word doesn't break anything. The next patch will make each target preserve the current mapping of everything to Constraint_m for itself while changing the target independent implementation of the hook to return Constraint_Unknown appropriately. Each target will then be adapted in separate patches to use appropriate Constraint_* values. Reviewers: hfinkel Reviewed By: hfinkel Subscribers: hfinkel, jholewinski, llvm-commits Differential Revision: http://reviews.llvm.org/D8171 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232027 91177308-0d34-0410-b5e6-96231b3b80d8
101 lines
3.3 KiB
C++
101 lines
3.3 KiB
C++
//===-- NVPTXISelDAGToDAG.h - A dag to dag inst selector for NVPTX --------===//
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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 file defines an instruction selector for the NVPTX target.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_NVPTX_NVPTXISELDAGTODAG_H
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#define LLVM_LIB_TARGET_NVPTX_NVPTXISELDAGTODAG_H
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#include "NVPTX.h"
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#include "NVPTXISelLowering.h"
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#include "NVPTXRegisterInfo.h"
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#include "NVPTXTargetMachine.h"
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#include "llvm/CodeGen/SelectionDAGISel.h"
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#include "llvm/IR/Intrinsics.h"
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#include "llvm/Support/Compiler.h"
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using namespace llvm;
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namespace {
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class LLVM_LIBRARY_VISIBILITY NVPTXDAGToDAGISel : public SelectionDAGISel {
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const NVPTXTargetMachine &TM;
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// If true, generate mul.wide from sext and mul
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bool doMulWide;
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int getDivF32Level() const;
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bool usePrecSqrtF32() const;
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bool useF32FTZ() const;
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bool allowFMA() const;
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public:
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explicit NVPTXDAGToDAGISel(NVPTXTargetMachine &tm,
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CodeGenOpt::Level OptLevel);
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// Pass Name
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const char *getPassName() const override {
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return "NVPTX DAG->DAG Pattern Instruction Selection";
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}
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bool runOnMachineFunction(MachineFunction &MF) override;
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const NVPTXSubtarget *Subtarget;
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bool SelectInlineAsmMemoryOperand(const SDValue &Op,
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unsigned ConstraintID,
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std::vector<SDValue> &OutOps) override;
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private:
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// Include the pieces autogenerated from the target description.
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#include "NVPTXGenDAGISel.inc"
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SDNode *Select(SDNode *N) override;
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SDNode *SelectIntrinsicNoChain(SDNode *N);
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SDNode *SelectIntrinsicChain(SDNode *N);
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SDNode *SelectTexSurfHandle(SDNode *N);
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SDNode *SelectLoad(SDNode *N);
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SDNode *SelectLoadVector(SDNode *N);
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SDNode *SelectLDGLDU(SDNode *N);
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SDNode *SelectStore(SDNode *N);
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SDNode *SelectStoreVector(SDNode *N);
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SDNode *SelectLoadParam(SDNode *N);
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SDNode *SelectStoreRetval(SDNode *N);
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SDNode *SelectStoreParam(SDNode *N);
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SDNode *SelectAddrSpaceCast(SDNode *N);
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SDNode *SelectTextureIntrinsic(SDNode *N);
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SDNode *SelectSurfaceIntrinsic(SDNode *N);
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SDNode *SelectBFE(SDNode *N);
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inline SDValue getI32Imm(unsigned Imm) {
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return CurDAG->getTargetConstant(Imm, MVT::i32);
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}
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// Match direct address complex pattern.
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bool SelectDirectAddr(SDValue N, SDValue &Address);
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bool SelectADDRri_imp(SDNode *OpNode, SDValue Addr, SDValue &Base,
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SDValue &Offset, MVT mvt);
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bool SelectADDRri(SDNode *OpNode, SDValue Addr, SDValue &Base,
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SDValue &Offset);
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bool SelectADDRri64(SDNode *OpNode, SDValue Addr, SDValue &Base,
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SDValue &Offset);
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bool SelectADDRsi_imp(SDNode *OpNode, SDValue Addr, SDValue &Base,
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SDValue &Offset, MVT mvt);
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bool SelectADDRsi(SDNode *OpNode, SDValue Addr, SDValue &Base,
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SDValue &Offset);
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bool SelectADDRsi64(SDNode *OpNode, SDValue Addr, SDValue &Base,
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SDValue &Offset);
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bool ChkMemSDNodeAddressSpace(SDNode *N, unsigned int spN) const;
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};
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}
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#endif
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