LLVM 20.0.0git
MCValue.cpp
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1//===- lib/MC/MCValue.cpp - MCValue implementation ------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "llvm/MC/MCValue.h"
10#include "llvm/Config/llvm-config.h"
11#include "llvm/MC/MCExpr.h"
12#include "llvm/Support/Debug.h"
15
16using namespace llvm;
17
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
40#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
42 print(dbgs());
43}
44#endif
45
47 const MCSymbolRefExpr *B = getSymB();
48 if (B) {
49 if (B->getKind() != MCSymbolRefExpr::VK_None)
50 llvm_unreachable("unsupported");
51 }
52
53 const MCSymbolRefExpr *A = getSymA();
54 if (!A)
56
57 return A->getKind();
58}
static GCRegistry::Add< OcamlGC > B("ocaml", "ocaml 3.10-compatible GC")
static GCRegistry::Add< ErlangGC > A("erlang", "erlang-compatible garbage collector")
#define LLVM_DUMP_METHOD
Mark debug helper function definitions like dump() that should not be stripped from debug builds.
Definition: Compiler.h:533
raw_pwrite_stream & OS
Represent a reference to a symbol from inside an expression.
Definition: MCExpr.h:188
int64_t getConstant() const
Definition: MCValue.h:43
uint32_t getRefKind() const
Definition: MCValue.h:46
MCSymbolRefExpr::VariantKind getAccessVariant() const
Definition: MCValue.cpp:46
const MCSymbolRefExpr * getSymB() const
Definition: MCValue.h:45
void dump() const
Print the value to stderr.
Definition: MCValue.cpp:41
const MCSymbolRefExpr * getSymA() const
Definition: MCValue.h:44
void print(raw_ostream &OS) const
Print the value to the stream OS.
Definition: MCValue.cpp:18
bool isAbsolute() const
Is this an absolute (as opposed to relocatable) value.
Definition: MCValue.h:49
This class implements an extremely fast bulk output stream that can only output to a stream.
Definition: raw_ostream.h:52
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
raw_ostream & dbgs()
dbgs() - This returns a reference to a raw_ostream for debugging messages.
Definition: Debug.cpp:163