LLVM 18.0.0git
ELFAttributes.cpp
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1//===-- ELFAttributes.cpp - ELF Attributes --------------------------------===//
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
10#include "llvm/ADT/StringRef.h"
11
12using namespace llvm;
13
15 bool hasTagPrefix) {
16 auto tagNameIt = find_if(
17 tagNameMap, [attr](const TagNameItem item) { return item.attr == attr; });
18 if (tagNameIt == tagNameMap.end())
19 return "";
20 StringRef tagName = tagNameIt->tagName;
21 return hasTagPrefix ? tagName : tagName.drop_front(4);
22}
23
24std::optional<unsigned> ELFAttrs::attrTypeFromString(StringRef tag,
25 TagNameMap tagNameMap) {
26 bool hasTagPrefix = tag.starts_with("Tag_");
27 auto tagNameIt =
28 find_if(tagNameMap, [tag, hasTagPrefix](const TagNameItem item) {
29 return item.tagName.drop_front(hasTagPrefix ? 0 : 4) == tag;
30 });
31 if (tagNameIt == tagNameMap.end())
32 return std::nullopt;
33 return tagNameIt->attr;
34}
iterator end() const
Definition: ArrayRef.h:154
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:50
bool starts_with(StringRef Prefix) const
Check if this string starts with the given Prefix.
Definition: StringRef.h:257
StringRef drop_front(size_t N=1) const
Return a StringRef equal to 'this' but with the first N elements dropped.
Definition: StringRef.h:613
std::optional< unsigned > attrTypeFromString(StringRef tag, TagNameMap tagNameMap)
StringRef attrTypeAsString(unsigned attr, TagNameMap tagNameMap, bool hasTagPrefix=true)
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
auto find_if(R &&Range, UnaryPredicate P)
Provide wrappers to std::find_if which take ranges instead of having to pass begin/end explicitly.
Definition: STLExtras.h:1753