//===- GraphChecker.cpp - Assert that various graph properties hold -------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
//
// This pass is used to test DSA with regression tests. It can be used to check
// that certain graph properties hold, such as two nodes being disjoint, whether
// --dsgc-abort-if-any-collapsed - Abort if any collapsed nodes are found
// --dsgc-abort-if-collapsed=<list> - Abort if a node pointed to by an SSA
// value with name in <list> is collapsed
-// --dsgc-abort-if-incomplete=<list>- Abort if any of the named SSA values
-// are incomplete.
+// --dsgc-check-flags=<list> - Abort if the specified nodes have flags
+// that are not specified.
// --dsgc-abort-if-merged=<list> - Abort if any of the named SSA values
// point to the same node.
//
#include "llvm/Value.h"
#include <set>
+using namespace llvm;
+
namespace {
enum DSPass { local, bu, td };
cl::opt<DSPass>
AbortIfCollapsed("dsgc-abort-if-collapsed", cl::Hidden, cl::CommaSeparated,
cl::desc("Abort if any of the named symbols is collapsed"));
cl::list<std::string>
- AbortIfIncomplete("dsgc-abort-if-incomplete", cl::Hidden, cl::CommaSeparated,
- cl::desc("Abort if any of the named symbols is incomplete"));
+ CheckFlags("dsgc-check-flags", cl::Hidden, cl::CommaSeparated,
+ cl::desc("Check that flags are specified for nodes"));
cl::list<std::string>
AbortIfMerged("dsgc-abort-if-merged", cl::Hidden, cl::CommaSeparated,
cl::desc("Abort if any of the named symbols are merged together"));
DSGC::DSGC() {
if (!AbortIfAnyCollapsed && AbortIfCollapsed.empty() &&
- AbortIfIncomplete.empty() && AbortIfMerged.empty()) {
+ CheckFlags.empty() && AbortIfMerged.empty()) {
std::cerr << "The -datastructure-gc is useless if you don't specify any"
" -dsgc-* options. See the -help-hidden output for a list.\n";
abort();
}
}
- if (!AbortIfCollapsed.empty() || !AbortIfIncomplete.empty() ||
+ if (!AbortIfCollapsed.empty() || !CheckFlags.empty() ||
!AbortIfMerged.empty()) {
// Convert from a list to a set, because we don't have cl::set's yet. FIXME
std::set<std::string> AbortIfCollapsedS(AbortIfCollapsed.begin(),
AbortIfCollapsed.end());
- std::set<std::string> AbortIfIncompleteS(AbortIfIncomplete.begin(),
- AbortIfIncomplete.end());
std::set<std::string> AbortIfMergedS(AbortIfMerged.begin(),
AbortIfMerged.end());
+ std::map<std::string, unsigned> CheckFlagsM;
+ for (cl::list<std::string>::iterator I = CheckFlags.begin(),
+ E = CheckFlags.end(); I != E; ++I) {
+ std::string::size_type ColonPos = I->rfind(':');
+ if (ColonPos == std::string::npos) {
+ std::cerr << "Error: '" << *I
+ << "' is an invalid value for the --dsgc-check-flags option!\n";
+ abort();
+ }
+
+ unsigned Flags = 0;
+ for (unsigned C = ColonPos+1; C != I->size(); ++C)
+ switch ((*I)[C]) {
+ case 'S': Flags |= DSNode::AllocaNode; break;
+ case 'H': Flags |= DSNode::HeapNode; break;
+ case 'G': Flags |= DSNode::GlobalNode; break;
+ case 'U': Flags |= DSNode::UnknownNode; break;
+ case 'I': Flags |= DSNode::Incomplete; break;
+ case 'M': Flags |= DSNode::Modified; break;
+ case 'R': Flags |= DSNode::Read; break;
+ case 'A': Flags |= DSNode::Array; break;
+ default: std::cerr << "Invalid DSNode flag!\n"; abort();
+ }
+ CheckFlagsM[std::string(I->begin(), I->begin()+ColonPos)] = Flags;
+ }
// Now we loop over all of the scalars, checking to see if any are collapsed
// that are not supposed to be, or if any are merged together.
for (DSGraph::ScalarMapTy::const_iterator I = SM.begin(), E = SM.end();
I != E; ++I)
if (I->first->hasName() && I->second.getNode()) {
- std::string Name = I->first->getName();
+ const std::string &Name = I->first->getName();
DSNode *N = I->second.getNode();
// Verify it is not collapsed if it is not supposed to be...
abort();
}
- if (N->isIncomplete() && AbortIfIncompleteS.count(Name)) {
- std::cerr << "Node for value '%" << Name << "' is incomplete: ";
+ if (CheckFlagsM.count(Name) && CheckFlagsM[Name] != N->getNodeFlags()) {
+ std::cerr << "Node flags are not as expected for node: " << Name
+ << "\n";
N->print(std::cerr, &G);
abort();
}