LLVM 20.0.0git
StringExtras.h
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1//===- llvm/ADT/StringExtras.h - Useful string functions --------*- C++ -*-===//
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/// \file
10/// This file contains some functions that are useful when dealing with strings.
11///
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_ADT_STRINGEXTRAS_H
15#define LLVM_ADT_STRINGEXTRAS_H
16
17#include "llvm/ADT/APSInt.h"
18#include "llvm/ADT/ArrayRef.h"
20#include "llvm/ADT/StringRef.h"
21#include "llvm/ADT/Twine.h"
22#include <cassert>
23#include <cstddef>
24#include <cstdint>
25#include <cstdlib>
26#include <cstring>
27#include <iterator>
28#include <string>
29#include <utility>
30
31namespace llvm {
32
33class raw_ostream;
34
35/// hexdigit - Return the hexadecimal character for the
36/// given number \p X (which should be less than 16).
37inline char hexdigit(unsigned X, bool LowerCase = false) {
38 assert(X < 16);
39 static const char LUT[] = "0123456789ABCDEF";
40 const uint8_t Offset = LowerCase ? 32 : 0;
41 return LUT[X] | Offset;
42}
43
44/// Given an array of c-style strings terminated by a null pointer, construct
45/// a vector of StringRefs representing the same strings without the terminating
46/// null string.
47inline std::vector<StringRef> toStringRefArray(const char *const *Strings) {
48 std::vector<StringRef> Result;
49 while (*Strings)
50 Result.push_back(*Strings++);
51 return Result;
52}
53
54/// Construct a string ref from a boolean.
55inline StringRef toStringRef(bool B) { return StringRef(B ? "true" : "false"); }
56
57/// Construct a string ref from an array ref of unsigned chars.
58inline StringRef toStringRef(ArrayRef<uint8_t> Input) {
59 return StringRef(reinterpret_cast<const char *>(Input.begin()), Input.size());
60}
61inline StringRef toStringRef(ArrayRef<char> Input) {
62 return StringRef(Input.begin(), Input.size());
63}
64
65/// Construct a string ref from an array ref of unsigned chars.
66template <class CharT = uint8_t>
67inline ArrayRef<CharT> arrayRefFromStringRef(StringRef Input) {
68 static_assert(std::is_same<CharT, char>::value ||
69 std::is_same<CharT, unsigned char>::value ||
70 std::is_same<CharT, signed char>::value,
71 "Expected byte type");
72 return ArrayRef<CharT>(reinterpret_cast<const CharT *>(Input.data()),
73 Input.size());
74}
75
76/// Interpret the given character \p C as a hexadecimal digit and return its
77/// value.
78///
79/// If \p C is not a valid hex digit, -1U is returned.
80inline unsigned hexDigitValue(char C) {
81 /* clang-format off */
82 static const int16_t LUT[256] = {
83 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
84 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
85 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
86 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, -1, -1, -1, // '0'..'9'
87 -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 'A'..'F'
88 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
89 -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 'a'..'f'
90 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
91 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
92 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
93 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
94 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
95 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
96 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
97 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
98 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
99 };
100 /* clang-format on */
101 return LUT[static_cast<unsigned char>(C)];
102}
103
104/// Checks if character \p C is one of the 10 decimal digits.
105inline bool isDigit(char C) { return C >= '0' && C <= '9'; }
106
107/// Checks if character \p C is a hexadecimal numeric character.
108inline bool isHexDigit(char C) { return hexDigitValue(C) != ~0U; }
109
110/// Checks if character \p C is a lowercase letter as classified by "C" locale.
111inline bool isLower(char C) { return 'a' <= C && C <= 'z'; }
112
113/// Checks if character \p C is a uppercase letter as classified by "C" locale.
114inline bool isUpper(char C) { return 'A' <= C && C <= 'Z'; }
115
116/// Checks if character \p C is a valid letter as classified by "C" locale.
117inline bool isAlpha(char C) { return isLower(C) || isUpper(C); }
118
119/// Checks whether character \p C is either a decimal digit or an uppercase or
120/// lowercase letter as classified by "C" locale.
121inline bool isAlnum(char C) { return isAlpha(C) || isDigit(C); }
122
123/// Checks whether character \p C is valid ASCII (high bit is zero).
124inline bool isASCII(char C) { return static_cast<unsigned char>(C) <= 127; }
125
126/// Checks whether all characters in S are ASCII.
127inline bool isASCII(llvm::StringRef S) {
128 for (char C : S)
129 if (LLVM_UNLIKELY(!isASCII(C)))
130 return false;
131 return true;
132}
133
134/// Checks whether character \p C is printable.
135///
136/// Locale-independent version of the C standard library isprint whose results
137/// may differ on different platforms.
138inline bool isPrint(char C) {
139 unsigned char UC = static_cast<unsigned char>(C);
140 return (0x20 <= UC) && (UC <= 0x7E);
141}
142
143/// Checks whether character \p C is a punctuation character.
144///
145/// Locale-independent version of the C standard library ispunct. The list of
146/// punctuation characters can be found in the documentation of std::ispunct:
147/// https://en.cppreference.com/w/cpp/string/byte/ispunct.
148inline bool isPunct(char C) {
149 static constexpr StringLiteral Punctuations =
150 R"(!"#$%&'()*+,-./:;<=>?@[\]^_`{|}~)";
151 return Punctuations.contains(C);
152}
153
154/// Checks whether character \p C is whitespace in the "C" locale.
155///
156/// Locale-independent version of the C standard library isspace.
157inline bool isSpace(char C) {
158 return C == ' ' || C == '\f' || C == '\n' || C == '\r' || C == '\t' ||
159 C == '\v';
160}
161
162/// Returns the corresponding lowercase character if \p x is uppercase.
163inline char toLower(char x) {
164 if (isUpper(x))
165 return x - 'A' + 'a';
166 return x;
167}
168
169/// Returns the corresponding uppercase character if \p x is lowercase.
170inline char toUpper(char x) {
171 if (isLower(x))
172 return x - 'a' + 'A';
173 return x;
174}
175
176inline std::string utohexstr(uint64_t X, bool LowerCase = false,
177 unsigned Width = 0) {
178 char Buffer[17];
179 char *BufPtr = std::end(Buffer);
180
181 if (X == 0) *--BufPtr = '0';
182
183 for (unsigned i = 0; Width ? (i < Width) : X; ++i) {
184 unsigned char Mod = static_cast<unsigned char>(X) & 15;
185 *--BufPtr = hexdigit(Mod, LowerCase);
186 X >>= 4;
187 }
188
189 return std::string(BufPtr, std::end(Buffer));
190}
191
192/// Convert buffer \p Input to its hexadecimal representation.
193/// The returned string is double the size of \p Input.
194inline void toHex(ArrayRef<uint8_t> Input, bool LowerCase,
195 SmallVectorImpl<char> &Output) {
196 const size_t Length = Input.size();
197 Output.resize_for_overwrite(Length * 2);
198
199 for (size_t i = 0; i < Length; i++) {
200 const uint8_t c = Input[i];
201 Output[i * 2 ] = hexdigit(c >> 4, LowerCase);
202 Output[i * 2 + 1] = hexdigit(c & 15, LowerCase);
203 }
204}
205
206inline std::string toHex(ArrayRef<uint8_t> Input, bool LowerCase = false) {
207 SmallString<16> Output;
208 toHex(Input, LowerCase, Output);
209 return std::string(Output);
210}
211
212inline std::string toHex(StringRef Input, bool LowerCase = false) {
213 return toHex(arrayRefFromStringRef(Input), LowerCase);
214}
215
216/// Store the binary representation of the two provided values, \p MSB and
217/// \p LSB, that make up the nibbles of a hexadecimal digit. If \p MSB or \p LSB
218/// do not correspond to proper nibbles of a hexadecimal digit, this method
219/// returns false. Otherwise, returns true.
220inline bool tryGetHexFromNibbles(char MSB, char LSB, uint8_t &Hex) {
221 unsigned U1 = hexDigitValue(MSB);
222 unsigned U2 = hexDigitValue(LSB);
223 if (U1 == ~0U || U2 == ~0U)
224 return false;
225
226 Hex = static_cast<uint8_t>((U1 << 4) | U2);
227 return true;
228}
229
230/// Return the binary representation of the two provided values, \p MSB and
231/// \p LSB, that make up the nibbles of a hexadecimal digit.
232inline uint8_t hexFromNibbles(char MSB, char LSB) {
233 uint8_t Hex = 0;
234 bool GotHex = tryGetHexFromNibbles(MSB, LSB, Hex);
235 (void)GotHex;
236 assert(GotHex && "MSB and/or LSB do not correspond to hex digits");
237 return Hex;
238}
239
240/// Convert hexadecimal string \p Input to its binary representation and store
241/// the result in \p Output. Returns true if the binary representation could be
242/// converted from the hexadecimal string. Returns false if \p Input contains
243/// non-hexadecimal digits. The output string is half the size of \p Input.
244inline bool tryGetFromHex(StringRef Input, std::string &Output) {
245 if (Input.empty())
246 return true;
247
248 // If the input string is not properly aligned on 2 nibbles we pad out the
249 // front with a 0 prefix; e.g. `ABC` -> `0ABC`.
250 Output.resize((Input.size() + 1) / 2);
251 char *OutputPtr = const_cast<char *>(Output.data());
252 if (Input.size() % 2 == 1) {
253 uint8_t Hex = 0;
254 if (!tryGetHexFromNibbles('0', Input.front(), Hex))
255 return false;
256 *OutputPtr++ = Hex;
257 Input = Input.drop_front();
258 }
259
260 // Convert the nibble pairs (e.g. `9C`) into bytes (0x9C).
261 // With the padding above we know the input is aligned and the output expects
262 // exactly half as many bytes as nibbles in the input.
263 size_t InputSize = Input.size();
264 assert(InputSize % 2 == 0);
265 const char *InputPtr = Input.data();
266 for (size_t OutputIndex = 0; OutputIndex < InputSize / 2; ++OutputIndex) {
267 uint8_t Hex = 0;
268 if (!tryGetHexFromNibbles(InputPtr[OutputIndex * 2 + 0], // MSB
269 InputPtr[OutputIndex * 2 + 1], // LSB
270 Hex))
271 return false;
272 OutputPtr[OutputIndex] = Hex;
273 }
274 return true;
275}
276
277/// Convert hexadecimal string \p Input to its binary representation.
278/// The return string is half the size of \p Input.
279inline std::string fromHex(StringRef Input) {
280 std::string Hex;
281 bool GotHex = tryGetFromHex(Input, Hex);
282 (void)GotHex;
283 assert(GotHex && "Input contains non hex digits");
284 return Hex;
285}
286
287/// Convert the string \p S to an integer of the specified type using
288/// the radix \p Base. If \p Base is 0, auto-detects the radix.
289/// Returns true if the number was successfully converted, false otherwise.
290template <typename N> bool to_integer(StringRef S, N &Num, unsigned Base = 0) {
291 return !S.getAsInteger(Base, Num);
292}
293
294namespace detail {
295template <typename N>
296inline bool to_float(const Twine &T, N &Num, N (*StrTo)(const char *, char **)) {
297 SmallString<32> Storage;
298 StringRef S = T.toNullTerminatedStringRef(Storage);
299 char *End;
300 N Temp = StrTo(S.data(), &End);
301 if (*End != '\0')
302 return false;
303 Num = Temp;
304 return true;
305}
306}
307
308inline bool to_float(const Twine &T, float &Num) {
309 return detail::to_float(T, Num, strtof);
310}
311
312inline bool to_float(const Twine &T, double &Num) {
313 return detail::to_float(T, Num, strtod);
314}
315
316inline bool to_float(const Twine &T, long double &Num) {
317 return detail::to_float(T, Num, strtold);
318}
319
320inline std::string utostr(uint64_t X, bool isNeg = false) {
321 char Buffer[21];
322 char *BufPtr = std::end(Buffer);
323
324 if (X == 0) *--BufPtr = '0'; // Handle special case...
325
326 while (X) {
327 *--BufPtr = '0' + char(X % 10);
328 X /= 10;
329 }
330
331 if (isNeg) *--BufPtr = '-'; // Add negative sign...
332 return std::string(BufPtr, std::end(Buffer));
333}
334
335inline std::string itostr(int64_t X) {
336 if (X < 0)
337 return utostr(static_cast<uint64_t>(1) + ~static_cast<uint64_t>(X), true);
338 else
339 return utostr(static_cast<uint64_t>(X));
340}
341
342inline std::string toString(const APInt &I, unsigned Radix, bool Signed,
343 bool formatAsCLiteral = false,
344 bool UpperCase = true,
345 bool InsertSeparators = false) {
346 SmallString<40> S;
347 I.toString(S, Radix, Signed, formatAsCLiteral, UpperCase, InsertSeparators);
348 return std::string(S);
349}
350
351inline std::string toString(const APSInt &I, unsigned Radix) {
352 return toString(I, Radix, I.isSigned());
353}
354
355/// StrInStrNoCase - Portable version of strcasestr. Locates the first
356/// occurrence of string 's1' in string 's2', ignoring case. Returns
357/// the offset of s2 in s1 or npos if s2 cannot be found.
358StringRef::size_type StrInStrNoCase(StringRef s1, StringRef s2);
359
360/// getToken - This function extracts one token from source, ignoring any
361/// leading characters that appear in the Delimiters string, and ending the
362/// token at any of the characters that appear in the Delimiters string. If
363/// there are no tokens in the source string, an empty string is returned.
364/// The function returns a pair containing the extracted token and the
365/// remaining tail string.
366std::pair<StringRef, StringRef> getToken(StringRef Source,
367 StringRef Delimiters = " \t\n\v\f\r");
368
369/// SplitString - Split up the specified string according to the specified
370/// delimiters, appending the result fragments to the output list.
371void SplitString(StringRef Source,
372 SmallVectorImpl<StringRef> &OutFragments,
373 StringRef Delimiters = " \t\n\v\f\r");
374
375/// Returns the English suffix for an ordinal integer (-st, -nd, -rd, -th).
376inline StringRef getOrdinalSuffix(unsigned Val) {
377 // It is critically important that we do this perfectly for
378 // user-written sequences with over 100 elements.
379 switch (Val % 100) {
380 case 11:
381 case 12:
382 case 13:
383 return "th";
384 default:
385 switch (Val % 10) {
386 case 1: return "st";
387 case 2: return "nd";
388 case 3: return "rd";
389 default: return "th";
390 }
391 }
392}
393
394/// Print each character of the specified string, escaping it if it is not
395/// printable or if it is an escape char.
396void printEscapedString(StringRef Name, raw_ostream &Out);
397
398/// Print each character of the specified string, escaping HTML special
399/// characters.
400void printHTMLEscaped(StringRef String, raw_ostream &Out);
401
402/// printLowerCase - Print each character as lowercase if it is uppercase.
403void printLowerCase(StringRef String, raw_ostream &Out);
404
405/// Converts a string from camel-case to snake-case by replacing all uppercase
406/// letters with '_' followed by the letter in lowercase, except if the
407/// uppercase letter is the first character of the string.
408std::string convertToSnakeFromCamelCase(StringRef input);
409
410/// Converts a string from snake-case to camel-case by replacing all occurrences
411/// of '_' followed by a lowercase letter with the letter in uppercase.
412/// Optionally allow capitalization of the first letter (if it is a lowercase
413/// letter)
414std::string convertToCamelFromSnakeCase(StringRef input,
415 bool capitalizeFirst = false);
416
417namespace detail {
418
419template <typename IteratorT>
420inline std::string join_impl(IteratorT Begin, IteratorT End,
421 StringRef Separator, std::input_iterator_tag) {
422 std::string S;
423 if (Begin == End)
424 return S;
425
426 S += (*Begin);
427 while (++Begin != End) {
428 S += Separator;
429 S += (*Begin);
430 }
431 return S;
432}
433
434template <typename IteratorT>
435inline std::string join_impl(IteratorT Begin, IteratorT End,
436 StringRef Separator, std::forward_iterator_tag) {
437 std::string S;
438 if (Begin == End)
439 return S;
440
441 size_t Len = (std::distance(Begin, End) - 1) * Separator.size();
442 for (IteratorT I = Begin; I != End; ++I)
443 Len += StringRef(*I).size();
444 S.reserve(Len);
445 size_t PrevCapacity = S.capacity();
446 (void)PrevCapacity;
447 S += (*Begin);
448 while (++Begin != End) {
449 S += Separator;
450 S += (*Begin);
451 }
452 assert(PrevCapacity == S.capacity() && "String grew during building");
453 return S;
454}
455
456template <typename Sep>
457inline void join_items_impl(std::string &Result, Sep Separator) {}
458
459template <typename Sep, typename Arg>
460inline void join_items_impl(std::string &Result, Sep Separator,
461 const Arg &Item) {
462 Result += Item;
463}
464
465template <typename Sep, typename Arg1, typename... Args>
466inline void join_items_impl(std::string &Result, Sep Separator, const Arg1 &A1,
467 Args &&... Items) {
468 Result += A1;
469 Result += Separator;
470 join_items_impl(Result, Separator, std::forward<Args>(Items)...);
471}
472
473inline size_t join_one_item_size(char) { return 1; }
474inline size_t join_one_item_size(const char *S) { return S ? ::strlen(S) : 0; }
475
476template <typename T> inline size_t join_one_item_size(const T &Str) {
477 return Str.size();
478}
479
480template <typename... Args> inline size_t join_items_size(Args &&...Items) {
481 return (0 + ... + join_one_item_size(std::forward<Args>(Items)));
482}
483
484} // end namespace detail
485
486/// Joins the strings in the range [Begin, End), adding Separator between
487/// the elements.
488template <typename IteratorT>
489inline std::string join(IteratorT Begin, IteratorT End, StringRef Separator) {
490 using tag = typename std::iterator_traits<IteratorT>::iterator_category;
491 return detail::join_impl(Begin, End, Separator, tag());
492}
493
494/// Joins the strings in the range [R.begin(), R.end()), adding Separator
495/// between the elements.
496template <typename Range>
497inline std::string join(Range &&R, StringRef Separator) {
498 return join(R.begin(), R.end(), Separator);
499}
500
501/// Joins the strings in the parameter pack \p Items, adding \p Separator
502/// between the elements. All arguments must be implicitly convertible to
503/// std::string, or there should be an overload of std::string::operator+=()
504/// that accepts the argument explicitly.
505template <typename Sep, typename... Args>
506inline std::string join_items(Sep Separator, Args &&... Items) {
507 std::string Result;
508 if (sizeof...(Items) == 0)
509 return Result;
510
511 size_t NS = detail::join_one_item_size(Separator);
512 size_t NI = detail::join_items_size(std::forward<Args>(Items)...);
513 Result.reserve(NI + (sizeof...(Items) - 1) * NS + 1);
514 detail::join_items_impl(Result, Separator, std::forward<Args>(Items)...);
515 return Result;
516}
517
518/// A helper class to return the specified delimiter string after the first
519/// invocation of operator StringRef(). Used to generate a comma-separated
520/// list from a loop like so:
521///
522/// \code
523/// ListSeparator LS;
524/// for (auto &I : C)
525/// OS << LS << I.getName();
526/// \end
527class ListSeparator {
528 bool First = true;
529 StringRef Separator;
530
531public:
532 ListSeparator(StringRef Separator = ", ") : Separator(Separator) {}
533 operator StringRef() {
534 if (First) {
535 First = false;
536 return {};
537 }
538 return Separator;
539 }
540};
541
542/// A forward iterator over partitions of string over a separator.
543class SplittingIterator
544 : public iterator_facade_base<SplittingIterator, std::forward_iterator_tag,
545 StringRef> {
546 char SeparatorStorage;
547 StringRef Current;
548 StringRef Next;
549 StringRef Separator;
550
551public:
552 SplittingIterator(StringRef Str, StringRef Separator)
553 : Next(Str), Separator(Separator) {
554 ++*this;
555 }
556
557 SplittingIterator(StringRef Str, char Separator)
558 : SeparatorStorage(Separator), Next(Str),
559 Separator(&SeparatorStorage, 1) {
560 ++*this;
561 }
562
563 SplittingIterator(const SplittingIterator &R)
564 : SeparatorStorage(R.SeparatorStorage), Current(R.Current), Next(R.Next),
565 Separator(R.Separator) {
566 if (R.Separator.data() == &R.SeparatorStorage)
567 Separator = StringRef(&SeparatorStorage, 1);
568 }
569
570 SplittingIterator &operator=(const SplittingIterator &R) {
571 if (this == &R)
572 return *this;
573
574 SeparatorStorage = R.SeparatorStorage;
575 Current = R.Current;
576 Next = R.Next;
577 Separator = R.Separator;
578 if (R.Separator.data() == &R.SeparatorStorage)
579 Separator = StringRef(&SeparatorStorage, 1);
580 return *this;
581 }
582
583 bool operator==(const SplittingIterator &R) const {
584 assert(Separator == R.Separator);
585 return Current.data() == R.Current.data();
586 }
587
588 const StringRef &operator*() const { return Current; }
589
590 StringRef &operator*() { return Current; }
591
592 SplittingIterator &operator++() {
593 std::tie(Current, Next) = Next.split(Separator);
594 return *this;
595 }
596};
597
598/// Split the specified string over a separator and return a range-compatible
599/// iterable over its partitions. Used to permit conveniently iterating
600/// over separated strings like so:
601///
602/// \code
603/// for (StringRef x : llvm::split("foo,bar,baz", ","))
604/// ...;
605/// \end
606///
607/// Note that the passed string must remain valid throuhgout lifetime
608/// of the iterators.
609inline iterator_range<SplittingIterator> split(StringRef Str, StringRef Separator) {
610 return {SplittingIterator(Str, Separator),
611 SplittingIterator(StringRef(), Separator)};
612}
613
614inline iterator_range<SplittingIterator> split(StringRef Str, char Separator) {
615 return {SplittingIterator(Str, Separator),
616 SplittingIterator(StringRef(), Separator)};
617}
618
619} // end namespace llvm
620
621#endif // LLVM_ADT_STRINGEXTRAS_H
static MachineBasicBlock * split(MachineBasicBlock::iterator I)
This file implements the APSInt class, which is a simple class that represents an arbitrary sized int...
static GCRegistry::Add< OcamlGC > B("ocaml", "ocaml 3.10-compatible GC")
#define LLVM_UNLIKELY(EXPR)
Definition: Compiler.h:237
static bool isNeg(Value *V)
Returns true if the operation is a negation of V, and it works for both integers and floats.
std::string Name
bool End
Definition: ELF_riscv.cpp:480
static GCMetadataPrinterRegistry::Add< ErlangGCPrinter > X("erlang", "erlang-compatible garbage collector")
#define I(x, y, z)
Definition: MD5.cpp:58
ConstantRange Range(APInt(BitWidth, Low), APInt(BitWidth, High))
static bool isDigit(const char C)
static bool isHexDigit(const char C)
static bool isLower(const char C)
static bool isUpper(const char C)
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
This file defines the SmallString class.
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:50
size_t size_type
Definition: StringRef.h:56
constexpr char Args[]
Key for Kernel::Metadata::mArgs.
@ C
The default llvm calling convention, compatible with C.
Definition: CallingConv.h:34
std::optional< const char * > toString(const std::optional< DWARFFormValue > &V)
Take an optional DWARFFormValue and try to extract a string value from it.
StringRef toStringRef(const std::optional< DWARFFormValue > &V, StringRef Default={})
Take an optional DWARFFormValue and try to extract a string value from it.
bool isPrint(int c)
Definition: Locale.cpp:13
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
@ Offset
Definition: DWP.cpp:480
@ Length
Definition: DWP.cpp:480
APInt operator*(APInt a, uint64_t RHS)
Definition: APInt.h:2174
bool operator==(const AddressRangeValuePair &LHS, const AddressRangeValuePair &RHS)
@ Mod
The access may modify the value stored in memory.
#define N