LLVM  4.0.0
MCValue.cpp
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1 //===- lib/MC/MCValue.cpp - MCValue implementation ------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #include "llvm/MC/MCValue.h"
11 #include "llvm/MC/MCExpr.h"
12 #include "llvm/Support/Debug.h"
15 
16 using namespace llvm;
17 
18 void MCValue::print(raw_ostream &OS) const {
19  if (isAbsolute()) {
20  OS << getConstant();
21  return;
22  }
23 
24  // FIXME: prints as a number, which isn't ideal. But the meaning will be
25  // target-specific anyway.
26  if (getRefKind())
27  OS << ':' << getRefKind() << ':';
28 
29  OS << *getSymA();
30 
31  if (getSymB()) {
32  OS << " - ";
33  OS << *getSymB();
34  }
35 
36  if (getConstant())
37  OS << " + " << getConstant();
38 }
39 
41  print(dbgs());
42 }
43 
45  const MCSymbolRefExpr *B = getSymB();
46  if (B) {
48  llvm_unreachable("unsupported");
49  }
50 
51  const MCSymbolRefExpr *A = getSymA();
52  if (!A)
54 
56  if (Kind == MCSymbolRefExpr::VK_WEAKREF)
58  return Kind;
59 }
#define LLVM_DUMP_METHOD
Mark debug helper function definitions like dump() that should not be stripped from debug builds...
Definition: Compiler.h:450
Represent a reference to a symbol from inside an expression.
Definition: MCExpr.h:161
void dump() const
Print the value to stderr.
Definition: MCValue.cpp:40
bool isAbsolute() const
Is this an absolute (as opposed to relocatable) value.
Definition: MCValue.h:52
static GCRegistry::Add< OcamlGC > B("ocaml","ocaml 3.10-compatible GC")
MCSymbolRefExpr::VariantKind getAccessVariant() const
Definition: MCValue.cpp:44
const MCSymbolRefExpr * getSymB() const
Definition: MCValue.h:48
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
const MCSymbolRefExpr * getSymA() const
Definition: MCValue.h:47
uint32_t getRefKind() const
Definition: MCValue.h:49
raw_ostream & dbgs()
dbgs() - This returns a reference to a raw_ostream for debugging messages.
Definition: Debug.cpp:132
void print(raw_ostream &OS) const
Print the value to the stream OS.
Definition: MCValue.cpp:18
const unsigned Kind
VariantKind getKind() const
Definition: MCExpr.h:313
int64_t getConstant() const
Definition: MCValue.h:46
This class implements an extremely fast bulk output stream that can only output to a stream...
Definition: raw_ostream.h:44
static GCRegistry::Add< ErlangGC > A("erlang","erlang-compatible garbage collector")