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[clang][driver] Print compilation phases with indentation. 

Reviewers: tra, sfantao, echristo

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D69124

llvm-svn: 375310
This commit is contained in:
Michael Liao 2019-10-19 00:17:00 +00:00
parent 243ebfba17
commit d7a487adfe
1 changed files with 24 additions and 5 deletions
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29
clang/lib/Driver/Driver.cpp
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@ -1802,23 +1802,36 @@ bool Driver::HandleImmediateArgs(const Compilation &C) {
return true;
}
enum {
TopLevelAction = 0,
HeadSibAction = 1,
OtherSibAction = 2,
};
// Display an action graph human-readably. Action A is the "sink" node
// and latest-occuring action. Traversal is in pre-order, visiting the
// inputs to each action before printing the action itself.
static unsigned PrintActions1(const Compilation &C, Action *A,
std::map<Action *, unsigned> &Ids) {
std::map<Action *, unsigned> &Ids,
Twine Indent = {}, int Kind = TopLevelAction) {
if (Ids.count(A)) // A was already visited.
return Ids[A];
std::string str;
llvm::raw_string_ostream os(str);
auto getSibIndent = [](int K) -> Twine {
return (K == HeadSibAction) ? " " : (K == OtherSibAction) ? "| " : "";
};
Twine SibIndent = Indent + getSibIndent(Kind);
int SibKind = HeadSibAction;
os << Action::getClassName(A->getKind()) << ", ";
if (InputAction *IA = dyn_cast<InputAction>(A)) {
os << "\"" << IA->getInputArg().getValue() << "\"";
} else if (BindArchAction *BIA = dyn_cast<BindArchAction>(A)) {
os << '"' << BIA->getArchName() << '"' << ", {"
<< PrintActions1(C, *BIA->input_begin(), Ids) << "}";
<< PrintActions1(C, *BIA->input_begin(), Ids, SibIndent, SibKind) << "}";
} else if (OffloadAction *OA = dyn_cast<OffloadAction>(A)) {
bool IsFirst = true;
OA->doOnEachDependence(
@ -1841,8 +1854,9 @@ static unsigned PrintActions1(const Compilation &C, Action *A,
os << ":" << BoundArch;
os << ")";
os << '"';
os << " {" << PrintActions1(C, A, Ids) << "}";
os << " {" << PrintActions1(C, A, Ids, SibIndent, SibKind) << "}";
IsFirst = false;
SibKind = OtherSibAction;
});
} else {
const ActionList *AL = &A->getInputs();
@ -1850,8 +1864,9 @@ static unsigned PrintActions1(const Compilation &C, Action *A,
if (AL->size()) {
const char *Prefix = "{";
for (Action *PreRequisite : *AL) {
os << Prefix << PrintActions1(C, PreRequisite, Ids);
os << Prefix << PrintActions1(C, PreRequisite, Ids, SibIndent, SibKind);
Prefix = ", ";
SibKind = OtherSibAction;
}
os << "}";
} else
@ -1872,9 +1887,13 @@ static unsigned PrintActions1(const Compilation &C, Action *A,
}
}
auto getSelfIndent = [](int K) -> Twine {
return (K == HeadSibAction) ? "+- " : (K == OtherSibAction) ? "|- " : "";
};
unsigned Id = Ids.size();
Ids[A] = Id;
llvm::errs() << Id << ": " << os.str() << ", "
llvm::errs() << Indent + getSelfIndent(Kind) << Id << ": " << os.str() << ", "
<< types::getTypeName(A->getType()) << offload_os.str() << "\n";
return Id;