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//===------ SemaM68k.cpp -------- M68k target-specific routines -----------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements semantic analysis functions specific to M68k.
//
//===----------------------------------------------------------------------===//
#include "clang/Sema/SemaM68k.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/Attr.h"
#include "clang/AST/DeclBase.h"
#include "clang/Basic/DiagnosticSema.h"
#include "clang/Sema/ParsedAttr.h"
namespace clang {
SemaM68k::SemaM68k(Sema &S) : SemaBase(S) {}
void SemaM68k::handleInterruptAttr(Decl *D, const ParsedAttr &AL) {
if (!AL.checkExactlyNumArgs(SemaRef, 1))
return;
if (!AL.isArgExpr(0)) {
Diag(AL.getLoc(), diag::err_attribute_argument_type)
<< AL << AANT_ArgumentIntegerConstant;
return;
}
// FIXME: Check for decl - it should be void ()(void).
Expr *NumParamsExpr = static_cast<Expr *>(AL.getArgAsExpr(0));
auto MaybeNumParams = NumParamsExpr->getIntegerConstantExpr(getASTContext());
if (!MaybeNumParams) {
Diag(AL.getLoc(), diag::err_attribute_argument_type)
<< AL << AANT_ArgumentIntegerConstant
<< NumParamsExpr->getSourceRange();
return;
}
unsigned Num = MaybeNumParams->getLimitedValue(255);
if ((Num & 1) || Num > 30) {
Diag(AL.getLoc(), diag::err_attribute_argument_out_of_bounds)
<< AL << (int)MaybeNumParams->getSExtValue()
<< NumParamsExpr->getSourceRange();
return;
}
D->addAttr(::new (getASTContext())
M68kInterruptAttr(getASTContext(), AL, Num));
D->addAttr(UsedAttr::CreateImplicit(getASTContext()));
}
} // namespace clang
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