| 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 | |
| 18 | bool llvm::isStatepointDirectiveAttr(Attribute Attr) { |
| 19 | return Attr.hasAttribute(Val: "statepoint-id") || |
| 20 | Attr.hasAttribute(Val: "statepoint-num-patch-bytes"); |
| 21 | } |
| 22 | |
| 23 | StatepointDirectives |
| 24 | llvm::parseStatepointDirectivesFromAttrs(AttributeList AS) { |
| 25 | StatepointDirectives Result; |
| 26 | |
| 27 | Attribute AttrID = AS.getFnAttr(Kind: "statepoint-id"); |
| 28 | uint64_t StatepointID; |
| 29 | if (AttrID.isStringAttribute()) |
| 30 | if (!AttrID.getValueAsString().getAsInteger(Radix: 10, Result&: StatepointID)) |
| 31 | Result.StatepointID = StatepointID; |
| 32 | |
| 33 | uint32_t NumPatchBytes; |
| 34 | Attribute AttrNumPatchBytes = AS.getFnAttr(Kind: "statepoint-num-patch-bytes"); |
| 35 | if (AttrNumPatchBytes.isStringAttribute()) |
| 36 | if (!AttrNumPatchBytes.getValueAsString().getAsInteger(Radix: 10, Result&: NumPatchBytes)) |
| 37 | Result.NumPatchBytes = NumPatchBytes; |
| 38 | |
| 39 | return Result; |
| 40 | } |
| 41 |