41 lines · cpp
1//===-- IR/Statepoint.cpp -- gc.statepoint utilities --- -----------------===//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-exception6//7//===----------------------------------------------------------------------===//8//9// This file contains some utility functions to help recognize gc.statepoint10// intrinsics.11//12//===----------------------------------------------------------------------===//13 14#include "llvm/IR/Statepoint.h"15 16using namespace llvm;17 18bool llvm::isStatepointDirectiveAttr(Attribute Attr) {19 return Attr.hasAttribute("statepoint-id") ||20 Attr.hasAttribute("statepoint-num-patch-bytes");21}22 23StatepointDirectives24llvm::parseStatepointDirectivesFromAttrs(AttributeList AS) {25 StatepointDirectives Result;26 27 Attribute AttrID = AS.getFnAttr("statepoint-id");28 uint64_t StatepointID;29 if (AttrID.isStringAttribute())30 if (!AttrID.getValueAsString().getAsInteger(10, StatepointID))31 Result.StatepointID = StatepointID;32 33 uint32_t NumPatchBytes;34 Attribute AttrNumPatchBytes = AS.getFnAttr("statepoint-num-patch-bytes");35 if (AttrNumPatchBytes.isStringAttribute())36 if (!AttrNumPatchBytes.getValueAsString().getAsInteger(10, NumPatchBytes))37 Result.NumPatchBytes = NumPatchBytes;38 39 return Result;40}41