//===----------------------------------------------------------------------===//
#include "llvm/Target/Mangler.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/Function.h"
-#include "llvm/Target/TargetData.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/Function.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
+#include "llvm/Target/TargetMachine.h"
#include "llvm/Support/raw_ostream.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/Twine.h"
using namespace llvm;
-static bool isAcceptableChar(char C, bool AllowPeriod) {
+static bool isAcceptableChar(char C, bool AllowPeriod, bool AllowUTF8) {
if ((C < 'a' || C > 'z') &&
(C < 'A' || C > 'Z') &&
(C < '0' || C > '9') &&
C != '_' && C != '$' && C != '@' &&
- !(AllowPeriod && C == '.'))
+ !(AllowPeriod && C == '.') &&
+ !(AllowUTF8 && (C & 0x80)))
return false;
return true;
}
OutName.push_back('_');
}
-/// NameNeedsEscaping - Return true if the identifier \arg Str needs quotes
+/// NameNeedsEscaping - Return true if the identifier \p Str needs quotes
/// for this assembler.
-static bool NameNeedsEscaping(StringRef Str, const MCAsmInfo &MAI) {
+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')
+ 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();
+ bool AllowPeriod = MAI->doesAllowPeriodsInName();
+ bool AllowUTF8 = MAI->doesAllowUTF8();
for (unsigned i = 0, e = Str.size(); i != e; ++i)
- if (!isAcceptableChar(Str[i], AllowPeriod))
+ if (!isAcceptableChar(Str[i], AllowPeriod, AllowUTF8))
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) {
+ 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') {
+ if (!MAI->doesAllowNameToStartWithDigit() && Str[0] >= '0' && Str[0] <= '9') {
MangleLetter(OutName, Str[0]);
Str = Str.substr(1);
}
- bool AllowPeriod = MAI.doesAllowPeriodsInName();
+ bool AllowPeriod = MAI->doesAllowPeriodsInName();
+ bool AllowUTF8 = MAI->doesAllowUTF8();
for (unsigned i = 0, e = Str.size(); i != e; ++i) {
- if (!isAcceptableChar(Str[i], AllowPeriod))
+ if (!isAcceptableChar(Str[i], AllowPeriod, AllowUTF8))
MangleLetter(OutName, Str[i]);
else
OutName.push_back(Str[i]);
/// and the specified name as the global variable name. GVName must not be
/// empty.
void Mangler::getNameWithPrefix(SmallVectorImpl<char> &OutName,
- const Twine &GVName, ManglerPrefixTy PrefixTy) {
+ const Twine &GVName, ManglerPrefixTy PrefixTy,
+ bool UseGlobalPrefix) {
SmallString<256> TmpData;
StringRef Name = GVName.toStringRef(TmpData);
assert(!Name.empty() && "getNameWithPrefix requires non-empty name");
- const MCAsmInfo &MAI = Context.getAsmInfo();
+ const MCAsmInfo *MAI = Context.getAsmInfo();
// If the global name is not led with \1, add the appropriate prefixes.
if (Name[0] == '\1') {
Name = Name.substr(1);
} else {
if (PrefixTy == Mangler::Private) {
- const char *Prefix = MAI.getPrivateGlobalPrefix();
+ const char *Prefix = MAI->getPrivateGlobalPrefix();
OutName.append(Prefix, Prefix+strlen(Prefix));
} else if (PrefixTy == Mangler::LinkerPrivate) {
- const char *Prefix = MAI.getLinkerPrivateGlobalPrefix();
+ const char *Prefix = MAI->getLinkerPrivateGlobalPrefix();
OutName.append(Prefix, Prefix+strlen(Prefix));
}
- const char *Prefix = MAI.getGlobalPrefix();
- if (Prefix[0] == 0)
- ; // Common noop, no prefix.
- else if (Prefix[1] == 0)
- OutName.push_back(Prefix[0]); // Common, one character prefix.
- else
- OutName.append(Prefix, Prefix+strlen(Prefix)); // Arbitrary length prefix.
+ if (UseGlobalPrefix) {
+ const char *Prefix = MAI->getGlobalPrefix();
+ if (Prefix[0] == 0)
+ ; // Common noop, no prefix.
+ else if (Prefix[1] == 0)
+ OutName.push_back(Prefix[0]); // Common, one character prefix.
+ else
+ // Arbitrary length prefix.
+ 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() &&
+ (MAI->doesAllowQuotesInName() &&
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())
+ if (!MAI->doesAllowQuotesInName())
return appendMangledName(OutName, Name, MAI);
// Okay, the system allows quoted strings. We can quote most anything, the
/// a suffix on their name indicating the number of words of arguments they
/// take.
static void AddFastCallStdCallSuffix(SmallVectorImpl<char> &OutName,
- const Function *F, const TargetData &TD) {
+ const Function *F, const DataLayout &TD) {
// Calculate arguments size total.
unsigned ArgWords = 0;
for (Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end();
AI != AE; ++AI) {
- const Type *Ty = AI->getType();
+ Type *Ty = AI->getType();
// 'Dereference' type in case of byval parameter attribute
if (AI->hasByValAttr())
Ty = cast<PointerType>(Ty)->getElementType();
/// 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) {
+ const GlobalValue *GV, bool isImplicitlyPrivate,
+ bool UseGlobalPrefix) {
ManglerPrefixTy PrefixTy = Mangler::Default;
if (GV->hasPrivateLinkage() || isImplicitlyPrivate)
PrefixTy = Mangler::Private;
- else if (GV->hasLinkerPrivateLinkage() || GV->hasLinkerPrivateWeakLinkage() ||
- GV->hasLinkerPrivateWeakDefAutoLinkage())
+ else if (GV->hasLinkerPrivateLinkage() || GV->hasLinkerPrivateWeakLinkage())
PrefixTy = Mangler::LinkerPrivate;
// If this global has a name, handle it simply.
if (GV->hasName()) {
- getNameWithPrefix(OutName, GV->getName(), PrefixTy);
+ StringRef Name = GV->getName();
+ getNameWithPrefix(OutName, Name, PrefixTy, UseGlobalPrefix);
+ // No need to do anything else if the global has the special "do not mangle"
+ // flag in the name.
+ if (Name[0] == 1)
+ return;
} else {
// 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.
- getNameWithPrefix(OutName, "__unnamed_" + Twine(ID), PrefixTy);
+ getNameWithPrefix(OutName, "__unnamed_" + Twine(ID), PrefixTy,
+ UseGlobalPrefix);
}
// If we are supposed to add a microsoft-style suffix for stdcall/fastcall,
// add it.
- if (Context.getAsmInfo().hasMicrosoftFastStdCallMangling()) {
+ if (Context.getAsmInfo()->hasMicrosoftFastStdCallMangling()) {
if (const Function *F = dyn_cast<Function>(GV)) {
CallingConv::ID CC = F->getCallingConv();
// fastcall and stdcall functions usually need @42 at the end to specify
// the argument info.
- const FunctionType *FT = F->getFunctionType();
+ FunctionType *FT = F->getFunctionType();
if ((CC == CallingConv::X86_FastCall || CC == CallingConv::X86_StdCall) &&
// "Pure" variadic functions do not receive @0 suffix.
(!FT->isVarArg() || FT->getNumParams() == 0 ||
(FT->getNumParams() == 1 && F->hasStructRetAttr())))
- AddFastCallStdCallSuffix(OutName, F, TD);
+ AddFastCallStdCallSuffix(OutName, F, *TM->getDataLayout());
}
}
}
-/// 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.
-std::string Mangler::getNameWithPrefix(const GlobalValue *GV,
- bool isImplicitlyPrivate) {
- SmallString<64> Buf;
- getNameWithPrefix(Buf, GV, isImplicitlyPrivate);
- return std::string(Buf.begin(), Buf.end());
-}
-
/// getSymbol - Return the MCSymbol for the specified global value. This
/// symbol is the main label that is the address of the global.
MCSymbol *Mangler::getSymbol(const GlobalValue *GV) {
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