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Add comments to PrintActions1 and Driver::PrintActions. 

Differential Revision: http://reviews.llvm.org/D10214

llvm-svn: 239537
This commit is contained in:
Douglas Katzman 2015-06-11 15:05:22 +00:00
parent 2987c29a1e
commit fd5286717c
1 changed files with 6 additions and 1 deletions
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7
clang/lib/Driver/Driver.cpp
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@ -814,9 +814,12 @@ bool Driver::HandleImmediateArgs(const Compilation &C) {
return true;
}
// 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) {
if (Ids.count(A))
if (Ids.count(A)) // A was already visited.
return Ids[A];
std::string str;
@ -847,6 +850,8 @@ static unsigned PrintActions1(const Compilation &C, Action *A,
return Id;
}
// Print the action graphs in a compilation C.
// For example "clang -c file1.c file2.c" is composed of two subgraphs.
void Driver::PrintActions(const Compilation &C) const {
std::map<Action*, unsigned> Ids;
for (ActionList::const_iterator it = C.getActions().begin(),