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Use the LLVM standard name mangling infrastructure instead of reinventing the

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wheel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10891 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Misha Brukman 2004-01-15 22:44:19 +00:00
parent 4a6ca8d096
commit cbbbdf768f
1 changed files with 18 additions and 77 deletions
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95
lib/Target/SparcV9/SparcV9AsmPrinter.cpp
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@ -27,6 +27,7 @@
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFunctionInfo.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/Support/Mangler.h"
#include "Support/StringExtras.h"
#include "Support/Statistic.h"
#include "SparcInternals.h"
@ -36,20 +37,6 @@ using namespace llvm;
namespace {
Statistic<> EmittedInsts("asm-printer", "Number of machine instrs printed");
class GlobalIdTable: public Annotation {
static AnnotationID AnnotId;
friend class AsmPrinter; // give access to AnnotId
public:
// AnonymousObjectMap - map anonymous values to unique integer IDs
std::map<const Value*, unsigned> AnonymousObjectMap;
unsigned LastAnonIDUsed;
GlobalIdTable() : Annotation(AnnotId), LastAnonIDUsed(0) {}
};
AnnotationID GlobalIdTable::AnnotId =
AnnotationManager::getID("ASM PRINTER GLOBAL TABLE ANNOT");
//===--------------------------------------------------------------------===//
// Utility functions
@ -169,7 +156,9 @@ namespace {
namespace {
class AsmPrinter {
GlobalIdTable* idTable;
// Mangle symbol names appropriately
Mangler *Mang;
public:
std::ostream &toAsm;
const TargetMachine &Target;
@ -183,16 +172,15 @@ namespace {
} CurSection;
AsmPrinter(std::ostream &os, const TargetMachine &T)
: idTable(0), toAsm(os), Target(T), CurSection(Unknown) {}
: /* idTable(0), */ toAsm(os), Target(T), CurSection(Unknown) {}
~AsmPrinter() {
delete Mang;
}
// (start|end)(Module|Function) - Callback methods invoked by subclasses
void startModule(Module &M) {
// Create the global id table if it does not already exist
idTable = (GlobalIdTable*)M.getAnnotation(GlobalIdTable::AnnotId);
if (idTable == NULL) {
idTable = new GlobalIdTable();
M.addAnnotation(idTable);
}
Mang = new Mangler(M);
}
void PrintZeroBytesToPad(int numBytes) {
@ -265,68 +253,21 @@ namespace {
toAsm << "\n";
}
static std::string getValidSymbolName(const std::string &S) {
std::string Result;
// Symbol names in Sparc assembly language have these rules:
// (a) Must match { letter | _ | . | $ } { letter | _ | . | $ | digit }*
// (b) A name beginning in "." is treated as a local name.
//
if (isdigit(S[0]))
Result = "ll";
for (unsigned i = 0; i < S.size(); ++i) {
char C = S[i];
if (C == '_' || C == '.' || C == '$' || isalpha(C) || isdigit(C))
Result += C;
else {
Result += '_';
Result += char('0' + ((unsigned char)C >> 4));
Result += char('0' + (C & 0xF));
}
}
return Result;
}
// getID - Return a valid identifier for the specified value. Base it on
// the name of the identifier if possible (qualified by the type), and
// use a numbered value based on prefix otherwise.
// FPrefix is always prepended to the output identifier.
//
std::string getID(const Value *V, const char *Prefix,
const char *FPrefix = "")
{
std::string Result = FPrefix; // "Forced prefix"
Result += V->hasName() ? V->getName() : std::string(Prefix);
// Qualify all internal names with a unique id.
if (!isa<GlobalValue>(V) || !cast<GlobalValue>(V)->hasExternalLinkage()) {
unsigned &ValID = idTable->AnonymousObjectMap[V];
if (ValID == 0)
ValID = ++idTable->LastAnonIDUsed;
Result += "_" + utostr(ValID);
// Replace or prefix problem characters in the name
Result = getValidSymbolName(Result);
}
return Result;
}
// getID Wrappers - Ensure consistent usage...
// getID Wrappers - Ensure consistent usage
// Symbol names in Sparc assembly language have these rules:
// (a) Must match { letter | _ | . | $ } { letter | _ | . | $ | digit }*
// (b) A name beginning in "." is treated as a local name.
std::string getID(const Function *F) {
return getID(F, "LLVMFunction_");
return Mang->getValueName(F);
}
std::string getID(const BasicBlock *BB) {
return getID(BB, "LL", (".L_"+getID(BB->getParent())+"_").c_str());
return ".L_" + getID(BB->getParent()) + "_" + Mang->getValueName(BB);
}
std::string getID(const GlobalVariable *GV) {
return getID(GV, "LLVMGlobal_");
return Mang->getValueName(GV);
}
std::string getID(const Constant *CV) {
return getID(CV, "LLVMConst_", ".C_");
return ".C_" + Mang->getValueName(CV);
}
std::string getID(const GlobalValue *GV) {
if (const GlobalVariable *V = dyn_cast<GlobalVariable>(GV))