Esempio n. 1
0
void codegenStmt(Expr* stmt) {
  GenInfo* info    = gGenInfo;
  FILE*    outfile = info->cfile;

  info->lineno   = stmt->linenum();
  info->filename = stmt->fname();

  if( outfile ) {
    if (printCppLineno && stmt->linenum() > 0)
        info->cStatements.push_back(zlineToString(stmt));
    if (fGenIDS)
      info->cStatements.push_back(idCommentTemp(stmt));
  } else {
#ifdef HAVE_LLVM
    if (debug_info && stmt->linenum() > 0) {
      // Adjust the current line number, but leave the scope alone.
      llvm::MDNode* scope;

      if(stmt->parentSymbol && stmt->parentSymbol->astTag == E_FnSymbol) {
        scope = debug_info->get_function((FnSymbol *)stmt->parentSymbol);
      } else {
        scope = info->builder->getCurrentDebugLocation().getScope(
#if HAVE_LLVM_VER < 37
                                                      info->llvmContext
#endif
                                                      );
      }

      info->builder->SetCurrentDebugLocation(
                  llvm::DebugLoc::get(stmt->linenum(),0 /*col*/,scope));
    }
#endif
  }

  ++gStmtCount;
}
Esempio n. 2
0
void VarSymbol::codegenDefC(bool global, bool isHeader) {
  GenInfo* info = gGenInfo;
  if (this->hasFlag(FLAG_EXTERN))
    return;

  if (type == dtVoid)
    return;

  AggregateType* ct = toAggregateType(type);
  QualifiedType qt = qualType();

  if (qt.isRef() && !qt.isRefType()) {
    Type* refType = getOrMakeRefTypeDuringCodegen(type);
    ct = toAggregateType(refType);
  }
  if (qt.isWideRef() && !qt.isWideRefType()) {
    Type* refType = getOrMakeRefTypeDuringCodegen(type);
    Type* wideType = getOrMakeWideTypeDuringCodegen(refType);
    ct = toAggregateType(wideType);
  }

  Type* useType = type;
  if (ct) useType = ct;

  std::string typestr =  (this->hasFlag(FLAG_SUPER_CLASS) ?
                          std::string(toAggregateType(useType)->classStructName(true)) :
                          useType->codegen().c);

  //
  // a variable can be codegen'd as static if it is global and neither
  // exported nor external.
  //
  std::string str;

  if(fIncrementalCompilation) {
    bool addExtern =  global && isHeader;
    str = (addExtern ? "extern " : "") + typestr + " " + cname;
  } else {
    bool isStatic =  global && !hasFlag(FLAG_EXPORT) && !hasFlag(FLAG_EXTERN);
    str = (isStatic ? "static " : "") + typestr + " " + cname;
  }

  if (ct) {
    if (ct->isClass()) {
      if (isFnSymbol(defPoint->parentSymbol)) {
        str += " = NULL";
      }
    } else if (ct->symbol->hasFlag(FLAG_WIDE_REF) ||
               ct->symbol->hasFlag(FLAG_WIDE_CLASS)) {
      if (isFnSymbol(defPoint->parentSymbol)) {
        if (widePointersStruct) {
          //
          // CHPL_LOCALEID_T_INIT is #defined in the chpl-locale-model.h
          // file in the runtime, for the selected locale model.
          //
          str += " = {CHPL_LOCALEID_T_INIT, NULL}";
        } else {
          str += " = ((wide_ptr_t) NULL)";
        }
      }
    }
  }

  if (fGenIDS)
    str = idCommentTemp(this) + str;
  if (printCppLineno && !isHeader && !isTypeSymbol(defPoint->parentSymbol))
    str = zlineToString(this) + str;

  info->cLocalDecls.push_back(str);
}