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llvm-mirror/tools/opt/BreakpointPrinter.cpp
Duncan P. N. Exon Smith 09b5c9c24d IR: Give 'DI' prefix to debug info metadata
Finish off PR23080 by renaming the debug info IR constructs from `MD*`
to `DI*`.  The last of the `DIDescriptor` classes were deleted in
r235356, and the last of the related typedefs removed in r235413, so
this has all baked for about a week.

Note: If you have out-of-tree code (like a frontend), I recommend that
you get everything compiling and tests passing with the *previous*
commit before updating to this one.  It'll be easier to keep track of
what code is using the `DIDescriptor` hierarchy and what you've already
updated, and I think you're extremely unlikely to insert bugs.  YMMV of
course.

Back to *this* commit: I did this using the rename-md-di-nodes.sh
upgrade script I've attached to PR23080 (both code and testcases) and
filtered through clang-format-diff.py.  I edited the tests for
test/Assembler/invalid-generic-debug-node-*.ll by hand since the columns
were off-by-three.  It should work on your out-of-tree testcases (and
code, if you've followed the advice in the previous paragraph).

Some of the tests are in badly named files now (e.g.,
test/Assembler/invalid-mdcompositetype-missing-tag.ll should be
'dicompositetype'); I'll come back and move the files in a follow-up
commit.

llvm-svn: 236120
2015-04-29 16:38:44 +00:00

79 lines
2.3 KiB
C++

//===- BreakpointPrinter.cpp - Breakpoint location printer ----------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// \brief Breakpoint location printer.
///
//===----------------------------------------------------------------------===//
#include "BreakpointPrinter.h"
#include "llvm/ADT/StringSet.h"
#include "llvm/IR/DebugInfo.h"
#include "llvm/IR/Module.h"
#include "llvm/Pass.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
namespace {
struct BreakpointPrinter : public ModulePass {
raw_ostream &Out;
static char ID;
DITypeIdentifierMap TypeIdentifierMap;
BreakpointPrinter(raw_ostream &out) : ModulePass(ID), Out(out) {}
void getContextName(const DIScope *Context, std::string &N) {
if (auto *NS = dyn_cast<DINamespace>(Context)) {
if (!NS->getName().empty()) {
getContextName(NS->getScope(), N);
N = N + NS->getName().str() + "::";
}
} else if (auto *TY = dyn_cast<DIType>(Context)) {
if (!TY->getName().empty()) {
getContextName(TY->getScope().resolve(TypeIdentifierMap), N);
N = N + TY->getName().str() + "::";
}
}
}
bool runOnModule(Module &M) override {
TypeIdentifierMap.clear();
NamedMDNode *CU_Nodes = M.getNamedMetadata("llvm.dbg.cu");
if (CU_Nodes)
TypeIdentifierMap = generateDITypeIdentifierMap(CU_Nodes);
StringSet<> Processed;
if (NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.sp"))
for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
std::string Name;
auto *SP = cast_or_null<DISubprogram>(NMD->getOperand(i));
if (!SP)
continue;
getContextName(SP->getScope().resolve(TypeIdentifierMap), Name);
Name = Name + SP->getDisplayName().str();
if (!Name.empty() && Processed.insert(Name).second) {
Out << Name << "\n";
}
}
return false;
}
void getAnalysisUsage(AnalysisUsage &AU) const override {
AU.setPreservesAll();
}
};
char BreakpointPrinter::ID = 0;
}
ModulePass *llvm::createBreakpointPrinter(raw_ostream &out) {
return new BreakpointPrinter(out);
}