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      1 //===- GIMatchDagPredicate.cpp - Represent a predicate to check -----------===//
      2 //
      3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
      4 // See https://llvm.org/LICENSE.txt for license information.
      5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
      6 //
      7 //===----------------------------------------------------------------------===//
      8 
      9 #include "GIMatchDagPredicate.h"
     10 
     11 #include "llvm/TableGen/Record.h"
     12 
     13 #include "GIMatchDagOperands.h"
     14 #include "../CodeGenInstruction.h"
     15 
     16 using namespace llvm;
     17 
     18 void GIMatchDagPredicate::print(raw_ostream &OS) const {
     19   OS << "<<";
     20   printDescription(OS);
     21   OS << ">>:$" << Name;
     22 }
     23 
     24 void GIMatchDagPredicate::printDescription(raw_ostream &OS) const { OS << ""; }
     25 
     26 GIMatchDagOpcodePredicate::GIMatchDagOpcodePredicate(
     27     GIMatchDagContext &Ctx, StringRef Name, const CodeGenInstruction &Instr)
     28     : GIMatchDagPredicate(GIMatchDagPredicateKind_Opcode, Name,
     29                           Ctx.makeMIPredicateOperandList()),
     30       Instr(Instr) {}
     31 
     32 void GIMatchDagOpcodePredicate::printDescription(raw_ostream &OS) const {
     33   OS << "$mi.getOpcode() == " << Instr.TheDef->getName();
     34 }
     35 
     36 GIMatchDagOneOfOpcodesPredicate::GIMatchDagOneOfOpcodesPredicate(
     37     GIMatchDagContext &Ctx, StringRef Name)
     38     : GIMatchDagPredicate(GIMatchDagPredicateKind_OneOfOpcodes, Name,
     39                           Ctx.makeMIPredicateOperandList()) {}
     40 
     41 void GIMatchDagOneOfOpcodesPredicate::printDescription(raw_ostream &OS) const {
     42   OS << "$mi.getOpcode() == oneof(";
     43   StringRef Separator = "";
     44   for (const CodeGenInstruction *Instr : Instrs) {
     45     OS << Separator << Instr->TheDef->getName();
     46     Separator = ",";
     47   }
     48   OS << ")";
     49 }
     50 
     51 GIMatchDagSameMOPredicate::GIMatchDagSameMOPredicate(GIMatchDagContext &Ctx,
     52                                                      StringRef Name)
     53     : GIMatchDagPredicate(GIMatchDagPredicateKind_SameMO, Name,
     54                           Ctx.makeTwoMOPredicateOperandList()) {}
     55 
     56 void GIMatchDagSameMOPredicate::printDescription(raw_ostream &OS) const {
     57   OS << "$mi0 == $mi1";
     58 }
     59 
     60 raw_ostream &llvm::operator<<(raw_ostream &OS, const GIMatchDagPredicate &N) {
     61   N.print(OS);
     62   return OS;
     63 }
     64 
     65 raw_ostream &llvm::operator<<(raw_ostream &OS,
     66                               const GIMatchDagOpcodePredicate &N) {
     67   N.print(OS);
     68   return OS;
     69 }
     70