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ScopGraphPrinter: Only show functions that contain at least one scop 

When running 'clang -O3 -mllvm -polly -mllvm -polly-show' we now only show the
CFGs of functions with at least one detected scop. For larger files/projects
this reduces the number of graphs printed significantly and is likely what
developers want to see. The new option -polly-view-all enforces all graphs to be
printed and the exiting option -poll-view-only limites the graph printing to
functions that match a certain pattern.

This patch requires https://llvm.org/svn/llvm-project/llvm/trunk@255889 (and
vice versa) to compile correctly.

llvm-svn: 255891
This commit is contained in:
Tobias Grosser 2015-12-17 12:55:26 +00:00
parent 71ebc691f6
commit eb2eebe486
1 changed files with 12 additions and 6 deletions
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18
polly/lib/Analysis/ScopGraphPrinter.cpp
View File

@ -29,6 +29,11 @@ static cl::opt<std::string>
cl::desc("Only view functions that match this pattern"),
cl::Hidden, cl::init(""), cl::ZeroOrMore);
static cl::opt<bool>
ViewAll("polly-view-all",
cl::desc("Also show functions without any scops"),
cl::Hidden, cl::init(false), cl::ZeroOrMore);
namespace llvm {
template <>
struct GraphTraits<ScopDetection *> : public GraphTraits<RegionInfo *> {
@ -178,14 +183,15 @@ struct DOTGraphTraits<ScopDetection *> : public DOTGraphTraits<RegionNode *> {
struct ScopViewer : public DOTGraphTraitsViewer<ScopDetection, false> {
static char ID;
ScopViewer() : DOTGraphTraitsViewer<ScopDetection, false>("scops", ID) {}
bool processFunction(Function &F) override {
if (ViewFilter == "")
bool processFunction(Function &F, ScopDetection &SD) override {
if (ViewFilter != "" && !F.getName().count(ViewFilter))
return false;
if (ViewAll)
return true;
if (F.getName().count(ViewFilter))
return true;
return false;
// Check that at least one scop was detected.
return std::distance(SD.begin(), SD.end()) > 0;
}
};
char ScopViewer::ID = 0;