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Change getLLVMName to use raw_ostream & PrintLLVMName.

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- Avoids duplicated quotification code.
 - Remove QuoteNameIfNeeded.
 - No functionality change.

llvm-svn: 57537
This commit is contained in:
Daniel Dunbar 2008-10-14 23:28:09 +00:00
parent 2f3ec96450
commit f3b4f45878
1 changed files with 15 additions and 59 deletions
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74
lib/VMCore/AsmWriter.cpp
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@ -68,58 +68,11 @@ static const Module *getModuleFromVal(const Value *V) {
return 0;
}
/// NameNeedsQuotes - Return true if the specified llvm name should be wrapped
/// with ""'s.
static std::string QuoteNameIfNeeded(const std::string &Name) {
std::string result;
bool needsQuotes = Name[0] >= '0' && Name[0] <= '9';
// Scan the name to see if it needs quotes and to replace funky chars with
// their octal equivalent.
for (unsigned i = 0, e = Name.size(); i != e; ++i) {
char C = Name[i];
assert(C != '"' && "Illegal character in LLVM value name!");
if (isalnum(C) || C == '-' || C == '.' || C == '_')
result += C;
else if (C == '\\') {
needsQuotes = true;
result += "\\\\";
} else if (isprint(C)) {
needsQuotes = true;
result += C;
} else {
needsQuotes = true;
result += "\\";
char hex1 = (C >> 4) & 0x0F;
if (hex1 < 10)
result += hex1 + '0';
else
result += hex1 - 10 + 'A';
char hex2 = C & 0x0F;
if (hex2 < 10)
result += hex2 + '0';
else
result += hex2 - 10 + 'A';
}
}
if (needsQuotes) {
result.insert(0,"\"");
result += '"';
}
return result;
}
/// getLLVMName - Turn the specified string into an 'LLVM name', which is
/// surrounded with ""'s and escaped if it has special chars in it.
static std::string getLLVMName(const std::string &Name) {
assert(!Name.empty() && "Cannot get empty name!");
return QuoteNameIfNeeded(Name);
}
enum PrefixType {
GlobalPrefix,
LabelPrefix,
LocalPrefix
LocalPrefix,
NoPrefix
};
/// PrintLLVMName - Turn the specified name into an 'LLVM name', which is either
@ -130,6 +83,7 @@ static void PrintLLVMName(raw_ostream &OS, const char *NameStr,
assert(NameStr && "Cannot get empty name!");
switch (Prefix) {
default: assert(0 && "Bad prefix!");
case NoPrefix: break;
case GlobalPrefix: OS << '@'; break;
case LabelPrefix: break;
case LocalPrefix: OS << '%'; break;
@ -165,21 +119,23 @@ static void PrintLLVMName(raw_ostream &OS, const char *NameStr,
OS << C;
} else {
OS << '\\';
char hex1 = (C >> 4) & 0x0F;
if (hex1 < 10)
OS << (char)(hex1 + '0');
else
OS << (char)(hex1 - 10 + 'A');
char hex2 = C & 0x0F;
if (hex2 < 10)
OS << (char)(hex2 + '0');
else
OS << (char)(hex2 - 10 + 'A');
OS << hexdigit((C >> 4) & 0x0F);
OS << hexdigit((C >> 0) & 0x0F);
}
}
OS << '"';
}
/// getLLVMName - Turn the specified string into an 'LLVM name', which is
/// surrounded with ""'s and escaped if it has special chars in it.
static std::string getLLVMName(const std::string &Name) {
assert(!Name.empty() && "Cannot get empty name!");
std::string result;
raw_string_ostream OS(result);
PrintLLVMName(OS, Name.c_str(), Name.length(), NoPrefix);
return OS.str();
}
/// PrintLLVMName - Turn the specified name into an 'LLVM name', which is either
/// prefixed with % (if the string only contains simple characters) or is
/// surrounded with ""'s (if it has special chars in it). Print it out.