Start flushing out MCContext.
- Lives inside new library lib/MC (LLVMMC.a)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74013 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCContext.cpp b/lib/MC/MCContext.cpp
new file mode 100644
index 0000000..a730a07
--- /dev/null
+++ b/lib/MC/MCContext.cpp
@@ -0,0 +1,77 @@
+//===- lib/MachineCode/MCContext.cpp - Machine Code Context ---------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/MC/MCContext.h"
+
+#include "llvm/MC/MCAtom.h"
+#include "llvm/MC/MCImm.h"
+#include "llvm/MC/MCSection.h"
+#include "llvm/MC/MCSymbol.h"
+using namespace llvm;
+
+MCContext::MCContext()
+{
+}
+
+MCContext::~MCContext() {
+}
+
+MCSection *MCContext::GetSection(const char *Name) {
+ MCSection *&Entry = Sections[Name];
+
+ if (!Entry)
+ Entry = new (this) MCSection(Name);
+
+ return Entry;
+}
+
+MCAtom *MCContext::CreateAtom(MCSection *Section) {
+ return new (this) MCAtom(Section);
+}
+
+MCSymbol *MCContext::CreateSymbol(MCAtom *Atom, const char *Name) {
+ assert(Name[0] != '\0' && "Normal symbols cannot be unnamed!");
+
+ // Create and bind the symbol, and ensure that names are unique.
+ MCSymbol *&Entry = Symbols[Name];
+ assert(!Entry && "Duplicate symbol definition!");
+ return Entry = new (this) MCSymbol(Atom, Name, false);
+}
+
+MCSymbol *MCContext::CreateTemporarySymbol(MCAtom *Atom, const char *Name) {
+ // If unnamed, just create a symbol.
+ if (Name[0] == '\0')
+ new (this) MCSymbol(Atom, "", true);
+
+ // Otherwise create as usual.
+ MCSymbol *&Entry = Symbols[Name];
+ assert(!Entry && "Duplicate symbol definition!");
+ return Entry = new (this) MCSymbol(Atom, Name, true);
+}
+
+MCSymbol *MCContext::LookupSymbol(const char *Name) const {
+ return Symbols.lookup(Name);
+}
+
+void MCContext::ClearSymbolValue(MCSymbol *Sym) {
+ SymbolValues.erase(Sym);
+}
+
+void MCContext::SetSymbolValue(MCSymbol *Sym, const MCImm &Value) {
+ SymbolValues[Sym] = Value;
+}
+
+const MCImm *MCContext::GetSymbolValue(MCSymbol *Sym) const {
+ DenseMap<MCSymbol*, MCImm>::iterator it = SymbolValues.find(Sym);
+
+ if (it == SymbolValues.end())
+ return 0;
+
+ return &it->second;
+}