diff options
Diffstat (limited to 'lib/Target/Mangler.cpp')
-rw-r--r-- | lib/Target/Mangler.cpp | 67 |
1 files changed, 4 insertions, 63 deletions
diff --git a/lib/Target/Mangler.cpp b/lib/Target/Mangler.cpp index 20f70a375e..0fc1f2356f 100644 --- a/lib/Target/Mangler.cpp +++ b/lib/Target/Mangler.cpp @@ -23,17 +23,6 @@ #include "llvm/Support/raw_ostream.h" using namespace llvm; -static bool isAcceptableChar(char C, bool AllowPeriod) { - if ((C < 'a' || C > 'z') && - (C < 'A' || C > 'Z') && - (C < '0' || C > '9') && - C != '_' && C != '$' && C != '@' && - !(AllowPeriod && C == '.') && - !(C & 0x80)) - return false; - return true; -} - static char HexDigit(int V) { return V < 10 ? V+'0' : V+'A'-10; } @@ -45,46 +34,6 @@ static void MangleLetter(SmallVectorImpl<char> &OutName, unsigned char C) { OutName.push_back('_'); } -/// NameNeedsEscaping - Return true if the identifier \p Str needs quotes -/// for this assembler. -static bool NameNeedsEscaping(StringRef Str, const MCAsmInfo *MAI) { - 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. - bool AllowPeriod = MAI->doesAllowPeriodsInName(); - for (unsigned i = 0, e = Str.size(); i != e; ++i) - if (!isAcceptableChar(Str[i], AllowPeriod)) - return true; - return false; -} - -/// appendMangledName - Add the specified string in mangled form if it uses -/// any unusual characters. -static void appendMangledName(SmallVectorImpl<char> &OutName, StringRef Str, - const MCAsmInfo *MAI) { - // The first character is not allowed to be a number unless the target - // explicitly allows it. - if (!MAI->doesAllowNameToStartWithDigit() && Str[0] >= '0' && Str[0] <= '9') { - MangleLetter(OutName, Str[0]); - Str = Str.substr(1); - } - - bool AllowPeriod = MAI->doesAllowPeriodsInName(); - for (unsigned i = 0, e = Str.size(); i != e; ++i) { - if (!isAcceptableChar(Str[i], AllowPeriod)) - MangleLetter(OutName, Str[i]); - else - OutName.push_back(Str[i]); - } -} - - /// appendMangledQuotedName - On systems that support quoted symbols, we still /// have to escape some (obscure) characters like " and \n which would break the /// assembler's lexing. @@ -134,22 +83,14 @@ void Mangler::getNameWithPrefix(SmallVectorImpl<char> &OutName, OutName.append(Prefix, Prefix+strlen(Prefix)); } } - + // If this is a simple string that doesn't need escaping, just append it. - if (!NameNeedsEscaping(Name, MAI) || - // If quotes are supported, they can be used unless the string contains - // a quote or newline. - (MAI->doesAllowQuotesInName() && - Name.find_first_of("\n\"") == StringRef::npos)) { + // Quotes can be used unless the string contains a quote or newline. + if (Name.find_first_of("\n\"") == StringRef::npos) { OutName.append(Name.begin(), Name.end()); return; } - - // On systems that do not allow quoted names, we need to mangle most - // strange characters. - if (!MAI->doesAllowQuotesInName()) - return appendMangledName(OutName, Name, MAI); - + // Okay, the system allows quoted strings. We can quote most anything, the // only characters that need escaping are " and \n. assert(Name.find_first_of("\n\"") != StringRef::npos); |