//===----------------------------------------------------------------------===//
#include "llvm/Support/Mangler.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/Module.h"
+#include "llvm/Function.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringMap.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/Support/raw_ostream.h"
using namespace llvm;
static char HexDigit(int V) {
/// in them, so mangle them as appropriate.
///
std::string Mangler::makeNameProper(const std::string &X,
- bool hasPrivateLinkage) {
+ ManglerPrefixTy PrefixTy) {
assert(!X.empty() && "Cannot mangle empty strings");
- // If PreserveAsmNames is set, names with asm identifiers are not modified.
- if (PreserveAsmNames && X[0] == 1)
- return X;
-
- // Figure out the prefix to use.
- const char *ThePrefix = hasPrivateLinkage ? PrivatePrefix : Prefix;
-
if (!UseQuotes) {
std::string Result;
++I; // Skip over the marker.
}
- // Mangle the first letter specially, don't allow numbers.
- if (*I >= '0' && *I <= '9')
+ // Mangle the first letter specially, don't allow numbers unless the target
+ // explicitly allows them.
+ if (!SymbolsCanStartWithDigit && *I >= '0' && *I <= '9')
Result += MangleLetter(*I++);
for (std::string::const_iterator E = X.end(); I != E; ++I) {
Result += *I;
}
- if (NeedPrefix)
- Result = ThePrefix + Result;
+ if (NeedPrefix) {
+ Result = Prefix + Result;
+
+ if (PrefixTy == Mangler::Private)
+ Result = PrivatePrefix + Result;
+ else if (PrefixTy == Mangler::LinkerPrivate)
+ Result = LinkerPrivatePrefix + Result;
+ }
+
return Result;
}
if (!NeedQuotes) {
if (!NeedPrefix)
return X.substr(1); // Strip off the \001.
- return ThePrefix + X;
+
+ Result = Prefix + X;
+
+ if (PrefixTy == Mangler::Private)
+ Result = PrivatePrefix + Result;
+ else if (PrefixTy == Mangler::LinkerPrivate)
+ Result = LinkerPrivatePrefix + Result;
+
+ return Result;
}
-
- Result = X.substr(0, I-X.begin());
+
+ if (NeedPrefix)
+ Result = X.substr(0, I-X.begin());
// Otherwise, construct the string the expensive way.
for (std::string::const_iterator E = X.end(); I != E; ++I) {
Result += *I;
}
- if (NeedPrefix)
- Result = ThePrefix + Result;
+ if (NeedPrefix) {
+ Result = Prefix + Result;
+
+ if (PrefixTy == Mangler::Private)
+ Result = PrivatePrefix + Result;
+ else if (PrefixTy == Mangler::LinkerPrivate)
+ Result = LinkerPrivatePrefix + Result;
+ }
+
Result = '"' + Result + '"';
return Result;
}
-std::string Mangler::getValueName(const GlobalValue *GV, const char *Suffix) {
+/// getMangledName - Returns the mangled name of V, an LLVM Value,
+/// in the current module. If 'Suffix' is specified, the name ends with the
+/// specified suffix. If 'ForcePrivate' is specified, the label is specified
+/// to have a private label prefix.
+///
+std::string Mangler::getMangledName(const GlobalValue *GV, const char *Suffix,
+ bool ForcePrivate) {
assert((!isa<Function>(GV) || !cast<Function>(GV)->isIntrinsic()) &&
"Intrinsic functions cannot be mangled by Mangler");
-
+
+ ManglerPrefixTy PrefixTy =
+ (GV->hasPrivateLinkage() || ForcePrivate) ? Mangler::Private :
+ GV->hasLinkerPrivateLinkage() ? Mangler::LinkerPrivate : Mangler::Default;
+
if (GV->hasName())
- return makeNameProper(GV->getName() + Suffix, GV->hasPrivateLinkage());
+ return makeNameProper(GV->getNameStr() + Suffix, PrefixTy);
+
+ // Get the ID for the global, assigning a new one if we haven't got one
+ // already.
+ unsigned &ID = AnonGlobalIDs[GV];
+ if (ID == 0) ID = NextAnonGlobalID++;
+
+ // Must mangle the global into a unique ID.
+ return makeNameProper("__unnamed_" + utostr(ID) + Suffix, PrefixTy);
+}
+
+
+/// getNameWithPrefix - Fill OutName with the name of the appropriate prefix
+/// and the specified global variable's name. If the global variable doesn't
+/// have a name, this fills in a unique name for the global.
+void Mangler::getNameWithPrefix(SmallVectorImpl<char> &OutName,
+ const GlobalValue *GV,
+ bool isImplicitlyPrivate) {
+
+ // If the global is anonymous or not led with \1, then add the appropriate
+ // prefix.
+ if (!GV->hasName() || GV->getName()[0] != '\1') {
+ if (GV->hasPrivateLinkage() || isImplicitlyPrivate)
+ OutName.append(PrivatePrefix, PrivatePrefix+strlen(PrivatePrefix));
+ else if (GV->hasLinkerPrivateLinkage())
+ OutName.append(LinkerPrivatePrefix,
+ LinkerPrivatePrefix+strlen(LinkerPrivatePrefix));;
+ OutName.append(Prefix, Prefix+strlen(Prefix));
+ }
+
+ // If the global has a name, just append it now.
+ if (GV->hasName()) {
+ StringRef Name = GV->getName();
+
+ // Strip off the prefix marker if present.
+ if (Name[0] != '\1')
+ OutName.append(Name.begin(), Name.end());
+ else
+ OutName.append(Name.begin()+1, Name.end());
+ return;
+ }
+
+ // If the global variable doesn't have a name, return a unique name for the
+ // global based on a numbering.
// Get the ID for the global, assigning a new one if we haven't got one
// already.
if (ID == 0) ID = NextAnonGlobalID++;
// Must mangle the global into a unique ID.
- return "__unnamed_" + utostr(ID) + Suffix;
+ raw_svector_ostream(OutName) << "__unnamed_" << ID;
}
-Mangler::Mangler(Module &M, const char *prefix, const char *privatePrefix)
- : Prefix(prefix), PrivatePrefix (privatePrefix), UseQuotes(false),
- PreserveAsmNames(false), NextAnonGlobalID(1) {
+
+Mangler::Mangler(Module &M, const char *prefix, const char *privatePrefix,
+ const char *linkerPrivatePrefix)
+ : Prefix(prefix), PrivatePrefix(privatePrefix),
+ LinkerPrivatePrefix(linkerPrivatePrefix), UseQuotes(false),
+ SymbolsCanStartWithDigit(false), NextAnonGlobalID(1) {
std::fill(AcceptableChars, array_endof(AcceptableChars), 0);
// Letters and numbers are acceptable.
markCharAcceptable('_');
markCharAcceptable('$');
markCharAcceptable('.');
+ markCharAcceptable('@');
}
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