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-rw-r--r--lib/MC/MCSymbol.cpp77
1 files changed, 9 insertions, 68 deletions
diff --git a/lib/MC/MCSymbol.cpp b/lib/MC/MCSymbol.cpp
index 265d06c..3fb1233 100644
--- a/lib/MC/MCSymbol.cpp
+++ b/lib/MC/MCSymbol.cpp
@@ -8,7 +8,6 @@
//===----------------------------------------------------------------------===//
#include "llvm/MC/MCSymbol.h"
-#include "llvm/MC/MCAsmInfo.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
@@ -26,24 +25,11 @@ static bool isAcceptableChar(char C) {
return true;
}
-static char HexDigit(int V) {
- return V < 10 ? V+'0' : V+'A'-10;
-}
-
-static void MangleLetter(raw_ostream &OS, unsigned char C) {
- OS << '_' << HexDigit(C >> 4) << HexDigit(C & 15) << '_';
-}
-
-/// NameNeedsEscaping - Return true if the identifier \arg Str needs quotes
-/// for this assembler.
-static bool NameNeedsEscaping(StringRef Str, const MCAsmInfo &MAI) {
+/// NameNeedsQuoting - Return true if the identifier \arg Str needs quotes to be
+/// syntactically correct.
+static bool NameNeedsQuoting(StringRef Str) {
assert(!Str.empty() && "Cannot create an empty MCSymbol");
- // If the first character is a number and the target does not allow this, we
- // need quotes.
- if (!MAI.doesAllowNameToStartWithDigit() && Str[0] >= '0' && Str[0] <= '9')
- return true;
-
// If any of the characters in the string is an unacceptable character, force
// quotes.
for (unsigned i = 0, e = Str.size(); i != e; ++i)
@@ -52,63 +38,18 @@ static bool NameNeedsEscaping(StringRef Str, const MCAsmInfo &MAI) {
return false;
}
-/// printMangledName - Print the specified string in mangled form if it uses
-/// any unusual characters.
-void MCSymbol::printMangledName(StringRef Str, raw_ostream &OS,
- const MCAsmInfo *MAI) {
- // The first character is not allowed to be a number unless the target
- // explicitly allows it.
- if ((MAI == 0 || !MAI->doesAllowNameToStartWithDigit()) &&
- Str[0] >= '0' && Str[0] <= '9') {
- MangleLetter(OS, Str[0]);
- Str = Str.substr(1);
- }
-
- for (unsigned i = 0, e = Str.size(); i != e; ++i) {
- if (!isAcceptableChar(Str[i]))
- MangleLetter(OS, Str[i]);
- else
- OS << Str[i];
- }
-}
-
-/// PrintMangledQuotedName - On systems that support quoted symbols, we still
-/// have to escape some (obscure) characters like " and \n which would break the
-/// assembler's lexing.
-static void PrintMangledQuotedName(raw_ostream &OS, StringRef Str) {
- OS << '"';
-
- for (unsigned i = 0, e = Str.size(); i != e; ++i) {
- if (Str[i] == '"')
- OS << "_QQ_";
- else if (Str[i] == '\n')
- OS << "_NL_";
- else
- OS << Str[i];
- }
- OS << '"';
-}
-
-
-void MCSymbol::print(raw_ostream &OS, const MCAsmInfo *MAI) const {
- if (MAI == 0 || !NameNeedsEscaping(getName(), *MAI)) {
+void MCSymbol::print(raw_ostream &OS) const {
+ // The name for this MCSymbol is required to be a valid target name. However,
+ // some targets support quoting names with funny characters. If the name
+ // contains a funny character, then print it quoted.
+ if (!NameNeedsQuoting(getName())) {
OS << getName();
return;
}
-
- // On systems that do not allow quoted names, print with mangling.
- if (!MAI->doesAllowQuotesInName())
- return printMangledName(getName(), OS, MAI);
-
- // If the string contains a double quote or newline, we still have to mangle
- // it.
- if (getName().find('"') != std::string::npos ||
- getName().find('\n') != std::string::npos)
- return PrintMangledQuotedName(OS, getName());
OS << '"' << getName() << '"';
}
void MCSymbol::dump() const {
- print(dbgs(), 0);
+ print(dbgs());
}
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