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4c1f3c24db
into their new header subdirectory: include/llvm/IR. This matches the directory structure of lib, and begins to correct a long standing point of file layout clutter in LLVM. There are still more header files to move here, but I wanted to handle them in separate commits to make tracking what files make sense at each layer easier. The only really questionable files here are the target intrinsic tablegen files. But that's a battle I'd rather not fight today. I've updated both CMake and Makefile build systems (I think, and my tests think, but I may have missed something). I've also re-sorted the includes throughout the project. I'll be committing updates to Clang, DragonEgg, and Polly momentarily. llvm-svn: 171366
118 lines
3.9 KiB
C++
118 lines
3.9 KiB
C++
//===-- ValueSymbolTable.cpp - Implement the ValueSymbolTable class -------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the ValueSymbolTable class for the IR library.
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//
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//===----------------------------------------------------------------------===//
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#define DEBUG_TYPE "valuesymtab"
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#include "llvm/IR/ValueSymbolTable.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/IR/GlobalValue.h"
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#include "llvm/IR/Type.h"
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace llvm;
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// Class destructor
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ValueSymbolTable::~ValueSymbolTable() {
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#ifndef NDEBUG // Only do this in -g mode...
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for (iterator VI = vmap.begin(), VE = vmap.end(); VI != VE; ++VI)
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dbgs() << "Value still in symbol table! Type = '"
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<< *VI->getValue()->getType() << "' Name = '"
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<< VI->getKeyData() << "'\n";
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assert(vmap.empty() && "Values remain in symbol table!");
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#endif
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}
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// Insert a value into the symbol table with the specified name...
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//
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void ValueSymbolTable::reinsertValue(Value* V) {
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assert(V->hasName() && "Can't insert nameless Value into symbol table");
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// Try inserting the name, assuming it won't conflict.
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if (vmap.insert(V->Name)) {
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//DEBUG(dbgs() << " Inserted value: " << V->Name << ": " << *V << "\n");
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return;
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}
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// Otherwise, there is a naming conflict. Rename this value.
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SmallString<256> UniqueName(V->getName().begin(), V->getName().end());
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// The name is too already used, just free it so we can allocate a new name.
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V->Name->Destroy();
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unsigned BaseSize = UniqueName.size();
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while (1) {
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// Trim any suffix off and append the next number.
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UniqueName.resize(BaseSize);
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raw_svector_ostream(UniqueName) << ++LastUnique;
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// Try insert the vmap entry with this suffix.
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ValueName &NewName = vmap.GetOrCreateValue(UniqueName);
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if (NewName.getValue() == 0) {
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// Newly inserted name. Success!
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NewName.setValue(V);
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V->Name = &NewName;
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//DEBUG(dbgs() << " Inserted value: " << UniqueName << ": " << *V << "\n");
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return;
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}
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}
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}
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void ValueSymbolTable::removeValueName(ValueName *V) {
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//DEBUG(dbgs() << " Removing Value: " << V->getKeyData() << "\n");
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// Remove the value from the symbol table.
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vmap.remove(V);
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}
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/// createValueName - This method attempts to create a value name and insert
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/// it into the symbol table with the specified name. If it conflicts, it
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/// auto-renames the name and returns that instead.
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ValueName *ValueSymbolTable::createValueName(StringRef Name, Value *V) {
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// In the common case, the name is not already in the symbol table.
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ValueName &Entry = vmap.GetOrCreateValue(Name);
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if (Entry.getValue() == 0) {
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Entry.setValue(V);
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//DEBUG(dbgs() << " Inserted value: " << Entry.getKeyData() << ": "
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// << *V << "\n");
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return &Entry;
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}
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// Otherwise, there is a naming conflict. Rename this value.
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SmallString<256> UniqueName(Name.begin(), Name.end());
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while (1) {
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// Trim any suffix off and append the next number.
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UniqueName.resize(Name.size());
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raw_svector_ostream(UniqueName) << ++LastUnique;
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// Try insert the vmap entry with this suffix.
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ValueName &NewName = vmap.GetOrCreateValue(UniqueName);
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if (NewName.getValue() == 0) {
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// Newly inserted name. Success!
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NewName.setValue(V);
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//DEBUG(dbgs() << " Inserted value: " << UniqueName << ": " << *V << "\n");
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return &NewName;
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}
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}
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}
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// dump - print out the symbol table
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//
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void ValueSymbolTable::dump() const {
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//DEBUG(dbgs() << "ValueSymbolTable:\n");
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for (const_iterator I = begin(), E = end(); I != E; ++I) {
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//DEBUG(dbgs() << " '" << I->getKeyData() << "' = ");
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I->getValue()->dump();
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//DEBUG(dbgs() << "\n");
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}
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}
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