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authorshadchin <shadchin@yandex-team.ru>2022-02-10 16:44:30 +0300
committerDaniil Cherednik <dcherednik@yandex-team.ru>2022-02-10 16:44:30 +0300
commit2598ef1d0aee359b4b6d5fdd1758916d5907d04f (patch)
tree012bb94d777798f1f56ac1cec429509766d05181 /contrib/libs/llvm12/lib/MC/MCParser/AsmLexer.cpp
parent6751af0b0c1b952fede40b19b71da8025b5d8bcf (diff)
downloadydb-2598ef1d0aee359b4b6d5fdd1758916d5907d04f.tar.gz
Restoring authorship annotation for <shadchin@yandex-team.ru>. Commit 1 of 2.
Diffstat (limited to 'contrib/libs/llvm12/lib/MC/MCParser/AsmLexer.cpp')
-rw-r--r--contrib/libs/llvm12/lib/MC/MCParser/AsmLexer.cpp302
1 files changed, 151 insertions, 151 deletions
diff --git a/contrib/libs/llvm12/lib/MC/MCParser/AsmLexer.cpp b/contrib/libs/llvm12/lib/MC/MCParser/AsmLexer.cpp
index 1fa22ab000..43c36f8eab 100644
--- a/contrib/libs/llvm12/lib/MC/MCParser/AsmLexer.cpp
+++ b/contrib/libs/llvm12/lib/MC/MCParser/AsmLexer.cpp
@@ -18,7 +18,7 @@
#include "llvm/ADT/StringSwitch.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCParser/MCAsmLexer.h"
-#include "llvm/Support/Compiler.h"
+#include "llvm/Support/Compiler.h"
#include "llvm/Support/SMLoc.h"
#include "llvm/Support/SaveAndRestore.h"
#include <cassert>
@@ -64,12 +64,12 @@ int AsmLexer::getNextChar() {
return (unsigned char)*CurPtr++;
}
-int AsmLexer::peekNextChar() {
- if (CurPtr == CurBuf.end())
- return EOF;
- return (unsigned char)*CurPtr;
-}
-
+int AsmLexer::peekNextChar() {
+ if (CurPtr == CurBuf.end())
+ return EOF;
+ return (unsigned char)*CurPtr;
+}
+
/// The leading integral digit sequence and dot should have already been
/// consumed, some or all of the fractional digit sequence *can* have been
/// consumed.
@@ -278,34 +278,34 @@ static unsigned doHexLookAhead(const char *&CurPtr, unsigned DefaultRadix,
return DefaultRadix;
}
-static const char *findLastDigit(const char *CurPtr, unsigned DefaultRadix) {
- while (hexDigitValue(*CurPtr) < DefaultRadix) {
- ++CurPtr;
- }
- return CurPtr;
-}
-
-static AsmToken intToken(StringRef Ref, APInt &Value) {
+static const char *findLastDigit(const char *CurPtr, unsigned DefaultRadix) {
+ while (hexDigitValue(*CurPtr) < DefaultRadix) {
+ ++CurPtr;
+ }
+ return CurPtr;
+}
+
+static AsmToken intToken(StringRef Ref, APInt &Value) {
if (Value.isIntN(64))
return AsmToken(AsmToken::Integer, Ref, Value);
return AsmToken(AsmToken::BigNum, Ref, Value);
}
-static std::string radixName(unsigned Radix) {
- switch (Radix) {
- case 2:
- return "binary";
- case 8:
- return "octal";
- case 10:
- return "decimal";
- case 16:
- return "hexadecimal";
- default:
- return "base-" + std::to_string(Radix);
- }
-}
-
+static std::string radixName(unsigned Radix) {
+ switch (Radix) {
+ case 2:
+ return "binary";
+ case 8:
+ return "octal";
+ case 10:
+ return "decimal";
+ case 16:
+ return "hexadecimal";
+ default:
+ return "base-" + std::to_string(Radix);
+ }
+}
+
/// LexDigit: First character is [0-9].
/// Local Label: [0-9][:]
/// Forward/Backward Label: [0-9][fb]
@@ -314,113 +314,113 @@ static std::string radixName(unsigned Radix) {
/// Hex integer: 0x[0-9a-fA-F]+ or [0x]?[0-9][0-9a-fA-F]*[hH]
/// Decimal integer: [1-9][0-9]*
AsmToken AsmLexer::LexDigit() {
- // MASM-flavor binary integer: [01]+[yY] (if DefaultRadix < 16, [bByY])
- // MASM-flavor octal integer: [0-7]+[oOqQ]
- // MASM-flavor decimal integer: [0-9]+[tT] (if DefaultRadix < 16, [dDtT])
+ // MASM-flavor binary integer: [01]+[yY] (if DefaultRadix < 16, [bByY])
+ // MASM-flavor octal integer: [0-7]+[oOqQ]
+ // MASM-flavor decimal integer: [0-9]+[tT] (if DefaultRadix < 16, [dDtT])
// MASM-flavor hexadecimal integer: [0-9][0-9a-fA-F]*[hH]
if (LexMasmIntegers && isdigit(CurPtr[-1])) {
- const char *FirstNonBinary =
- (CurPtr[-1] != '0' && CurPtr[-1] != '1') ? CurPtr - 1 : nullptr;
- const char *FirstNonDecimal =
- (CurPtr[-1] < '0' || CurPtr[-1] > '9') ? CurPtr - 1 : nullptr;
+ const char *FirstNonBinary =
+ (CurPtr[-1] != '0' && CurPtr[-1] != '1') ? CurPtr - 1 : nullptr;
+ const char *FirstNonDecimal =
+ (CurPtr[-1] < '0' || CurPtr[-1] > '9') ? CurPtr - 1 : nullptr;
const char *OldCurPtr = CurPtr;
while (isHexDigit(*CurPtr)) {
- switch (*CurPtr) {
- default:
- if (!FirstNonDecimal) {
- FirstNonDecimal = CurPtr;
- }
- LLVM_FALLTHROUGH;
- case '9':
- case '8':
- case '7':
- case '6':
- case '5':
- case '4':
- case '3':
- case '2':
- if (!FirstNonBinary) {
- FirstNonBinary = CurPtr;
- }
- break;
- case '1':
- case '0':
- break;
- }
+ switch (*CurPtr) {
+ default:
+ if (!FirstNonDecimal) {
+ FirstNonDecimal = CurPtr;
+ }
+ LLVM_FALLTHROUGH;
+ case '9':
+ case '8':
+ case '7':
+ case '6':
+ case '5':
+ case '4':
+ case '3':
+ case '2':
+ if (!FirstNonBinary) {
+ FirstNonBinary = CurPtr;
+ }
+ break;
+ case '1':
+ case '0':
+ break;
+ }
++CurPtr;
}
- if (*CurPtr == '.') {
- // MASM float literals (other than hex floats) always contain a ".", and
- // are always written in decimal.
- ++CurPtr;
- return LexFloatLiteral();
- }
-
- if (LexMasmHexFloats && (*CurPtr == 'r' || *CurPtr == 'R')) {
- ++CurPtr;
- return AsmToken(AsmToken::Real, StringRef(TokStart, CurPtr - TokStart));
- }
-
+ if (*CurPtr == '.') {
+ // MASM float literals (other than hex floats) always contain a ".", and
+ // are always written in decimal.
+ ++CurPtr;
+ return LexFloatLiteral();
+ }
+
+ if (LexMasmHexFloats && (*CurPtr == 'r' || *CurPtr == 'R')) {
+ ++CurPtr;
+ return AsmToken(AsmToken::Real, StringRef(TokStart, CurPtr - TokStart));
+ }
+
unsigned Radix = 0;
if (*CurPtr == 'h' || *CurPtr == 'H') {
// hexadecimal number
++CurPtr;
Radix = 16;
- } else if (*CurPtr == 't' || *CurPtr == 'T') {
- // decimal number
- ++CurPtr;
- Radix = 10;
- } else if (*CurPtr == 'o' || *CurPtr == 'O' || *CurPtr == 'q' ||
- *CurPtr == 'Q') {
- // octal number
- ++CurPtr;
- Radix = 8;
- } else if (*CurPtr == 'y' || *CurPtr == 'Y') {
- // binary number
- ++CurPtr;
- Radix = 2;
- } else if (FirstNonDecimal && FirstNonDecimal + 1 == CurPtr &&
- DefaultRadix < 14 &&
- (*FirstNonDecimal == 'd' || *FirstNonDecimal == 'D')) {
- Radix = 10;
+ } else if (*CurPtr == 't' || *CurPtr == 'T') {
+ // decimal number
+ ++CurPtr;
+ Radix = 10;
+ } else if (*CurPtr == 'o' || *CurPtr == 'O' || *CurPtr == 'q' ||
+ *CurPtr == 'Q') {
+ // octal number
+ ++CurPtr;
+ Radix = 8;
+ } else if (*CurPtr == 'y' || *CurPtr == 'Y') {
+ // binary number
+ ++CurPtr;
+ Radix = 2;
+ } else if (FirstNonDecimal && FirstNonDecimal + 1 == CurPtr &&
+ DefaultRadix < 14 &&
+ (*FirstNonDecimal == 'd' || *FirstNonDecimal == 'D')) {
+ Radix = 10;
} else if (FirstNonBinary && FirstNonBinary + 1 == CurPtr &&
- DefaultRadix < 12 &&
- (*FirstNonBinary == 'b' || *FirstNonBinary == 'B')) {
+ DefaultRadix < 12 &&
+ (*FirstNonBinary == 'b' || *FirstNonBinary == 'B')) {
Radix = 2;
- }
+ }
- if (Radix) {
+ if (Radix) {
StringRef Result(TokStart, CurPtr - TokStart);
APInt Value(128, 0, true);
if (Result.drop_back().getAsInteger(Radix, Value))
- return ReturnError(TokStart, "invalid " + radixName(Radix) + " number");
+ return ReturnError(TokStart, "invalid " + radixName(Radix) + " number");
// MSVC accepts and ignores type suffices on integer literals.
SkipIgnoredIntegerSuffix(CurPtr);
return intToken(Result, Value);
- }
+ }
- // default-radix integers, or floating point numbers, fall through
+ // default-radix integers, or floating point numbers, fall through
CurPtr = OldCurPtr;
}
- // MASM default-radix integers: [0-9a-fA-F]+
- // (All other integer literals have a radix specifier.)
- if (LexMasmIntegers && UseMasmDefaultRadix) {
- CurPtr = findLastDigit(CurPtr, 16);
- StringRef Result(TokStart, CurPtr - TokStart);
-
- APInt Value(128, 0, true);
- if (Result.getAsInteger(DefaultRadix, Value)) {
- return ReturnError(TokStart,
- "invalid " + radixName(DefaultRadix) + " number");
- }
-
- return intToken(Result, Value);
- }
-
+ // MASM default-radix integers: [0-9a-fA-F]+
+ // (All other integer literals have a radix specifier.)
+ if (LexMasmIntegers && UseMasmDefaultRadix) {
+ CurPtr = findLastDigit(CurPtr, 16);
+ StringRef Result(TokStart, CurPtr - TokStart);
+
+ APInt Value(128, 0, true);
+ if (Result.getAsInteger(DefaultRadix, Value)) {
+ return ReturnError(TokStart,
+ "invalid " + radixName(DefaultRadix) + " number");
+ }
+
+ return intToken(Result, Value);
+ }
+
// Decimal integer: [1-9][0-9]*
if (CurPtr[-1] != '0' || CurPtr[0] == '.') {
unsigned Radix = doHexLookAhead(CurPtr, 10, LexMasmIntegers);
@@ -435,9 +435,9 @@ AsmToken AsmLexer::LexDigit() {
StringRef Result(TokStart, CurPtr - TokStart);
APInt Value(128, 0, true);
- if (Result.getAsInteger(Radix, Value)) {
- return ReturnError(TokStart, "invalid " + radixName(Radix) + " number");
- }
+ if (Result.getAsInteger(Radix, Value)) {
+ return ReturnError(TokStart, "invalid " + radixName(Radix) + " number");
+ }
// The darwin/x86 (and x86-64) assembler accepts and ignores type
// suffices on integer literals.
@@ -510,7 +510,7 @@ AsmToken AsmLexer::LexDigit() {
unsigned Radix = doHexLookAhead(CurPtr, 8, LexMasmIntegers);
StringRef Result(TokStart, CurPtr - TokStart);
if (Result.getAsInteger(Radix, Value))
- return ReturnError(TokStart, "invalid " + radixName(Radix) + " number");
+ return ReturnError(TokStart, "invalid " + radixName(Radix) + " number");
// Consume the [hH].
if (Radix == 16)
@@ -527,24 +527,24 @@ AsmToken AsmLexer::LexDigit() {
AsmToken AsmLexer::LexSingleQuote() {
int CurChar = getNextChar();
- if (LexMasmStrings) {
- while (CurChar != EOF) {
- if (CurChar != '\'') {
- CurChar = getNextChar();
- } else if (peekNextChar() == '\'') {
- // In MASM single-quote strings, doubled single-quotes mean an escaped
- // single quote, so should be lexed in.
- getNextChar();
- CurChar = getNextChar();
- } else {
- break;
- }
- }
- if (CurChar == EOF)
- return ReturnError(TokStart, "unterminated string constant");
- return AsmToken(AsmToken::String, StringRef(TokStart, CurPtr - TokStart));
- }
-
+ if (LexMasmStrings) {
+ while (CurChar != EOF) {
+ if (CurChar != '\'') {
+ CurChar = getNextChar();
+ } else if (peekNextChar() == '\'') {
+ // In MASM single-quote strings, doubled single-quotes mean an escaped
+ // single quote, so should be lexed in.
+ getNextChar();
+ CurChar = getNextChar();
+ } else {
+ break;
+ }
+ }
+ if (CurChar == EOF)
+ return ReturnError(TokStart, "unterminated string constant");
+ return AsmToken(AsmToken::String, StringRef(TokStart, CurPtr - TokStart));
+ }
+
if (CurChar == '\\')
CurChar = getNextChar();
@@ -579,24 +579,24 @@ AsmToken AsmLexer::LexSingleQuote() {
/// LexQuote: String: "..."
AsmToken AsmLexer::LexQuote() {
int CurChar = getNextChar();
- if (LexMasmStrings) {
- while (CurChar != EOF) {
- if (CurChar != '"') {
- CurChar = getNextChar();
- } else if (peekNextChar() == '"') {
- // In MASM double-quoted strings, doubled double-quotes mean an escaped
- // double quote, so should be lexed in.
- getNextChar();
- CurChar = getNextChar();
- } else {
- break;
- }
- }
- if (CurChar == EOF)
- return ReturnError(TokStart, "unterminated string constant");
- return AsmToken(AsmToken::String, StringRef(TokStart, CurPtr - TokStart));
- }
-
+ if (LexMasmStrings) {
+ while (CurChar != EOF) {
+ if (CurChar != '"') {
+ CurChar = getNextChar();
+ } else if (peekNextChar() == '"') {
+ // In MASM double-quoted strings, doubled double-quotes mean an escaped
+ // double quote, so should be lexed in.
+ getNextChar();
+ CurChar = getNextChar();
+ } else {
+ break;
+ }
+ }
+ if (CurChar == EOF)
+ return ReturnError(TokStart, "unterminated string constant");
+ return AsmToken(AsmToken::String, StringRef(TokStart, CurPtr - TokStart));
+ }
+
// TODO: does gas allow multiline string constants?
while (CurChar != '"') {
if (CurChar == '\\') {
@@ -715,7 +715,7 @@ AsmToken AsmLexer::LexToken() {
if (CurChar == EOF && !IsAtStartOfStatement && EndStatementAtEOF) {
IsAtStartOfLine = true;
IsAtStartOfStatement = true;
- return AsmToken(AsmToken::EndOfStatement, StringRef(TokStart, 0));
+ return AsmToken(AsmToken::EndOfStatement, StringRef(TokStart, 0));
}
IsAtStartOfLine = false;
bool OldIsAtStartOfStatement = IsAtStartOfStatement;