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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file contains some utility functions to help recognize gc.statepoint 10 // intrinsics. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "llvm/IR/Statepoint.h" 15 16 using namespace llvm; 17 isStatepointDirectiveAttr(Attribute Attr)18bool llvm::isStatepointDirectiveAttr(Attribute Attr) { 19 return Attr.hasAttribute("statepoint-id") || 20 Attr.hasAttribute("statepoint-num-patch-bytes"); 21 } 22 23 StatepointDirectives parseStatepointDirectivesFromAttrs(AttributeList AS)24llvm::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