Since I'm obliged to work with a development OS that currently doesn't
support GraphViz, I've been using the foo->dump() facility. This
patch is a minor rewrite to the SelectionDAG dump() stuff to make it a
little more helpful. The existing foo->dump() functionality does not
change; this patch adds foo->dumpr(). All of this is only useful when
running LLVM under a debugger.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63736 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index e3ff5a7..ebc67dd 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -5638,7 +5638,7 @@
errs().flush();
}
-void SDNode::print(raw_ostream &OS, const SelectionDAG *G) const {
+void SDNode::print_types(raw_ostream &OS, const SelectionDAG *G) const {
OS << (void*)this << ": ";
for (unsigned i = 0, e = getNumValues(); i != e; ++i) {
@@ -5649,15 +5649,9 @@
OS << getValueType(i).getMVTString();
}
OS << " = " << getOperationName(G);
+}
- OS << " ";
- for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
- if (i) OS << ", ";
- OS << (void*)getOperand(i).getNode();
- if (unsigned RN = getOperand(i).getResNo())
- OS << ":" << RN;
- }
-
+void SDNode::print_details(raw_ostream &OS, const SelectionDAG *G) const {
if (!isTargetOpcode() && getOpcode() == ISD::VECTOR_SHUFFLE) {
SDNode *Mask = getOperand(2).getNode();
OS << "<";
@@ -5798,6 +5792,18 @@
}
}
+void SDNode::print(raw_ostream &OS, const SelectionDAG *G) const {
+ print_types(OS, G);
+ OS << " ";
+ for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
+ if (i) OS << ", ";
+ OS << (void*)getOperand(i).getNode();
+ if (unsigned RN = getOperand(i).getResNo())
+ OS << ":" << RN;
+ }
+ print_details(OS, G);
+}
+
static void DumpNodes(const SDNode *N, unsigned indent, const SelectionDAG *G) {
for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i)
if (N->getOperand(i).getNode()->hasOneUse())
@@ -5826,6 +5832,47 @@
cerr << "\n\n";
}
+void SDNode::printr(raw_ostream &OS, const SelectionDAG *G) const {
+ print_types(OS, G);
+ print_details(OS, G);
+}
+
+typedef SmallPtrSet<const SDNode *, 128> VisitedSDNodeSet;
+static void DumpNodesr(raw_ostream &OS, const SDNode *N, unsigned indent, const SelectionDAG *G, VisitedSDNodeSet &once) {
+ if (!once.insert(N)) // If we've been here before, return now.
+ return;
+ // Dump the current SDNode, but don't end the line yet.
+ OS << std::string(indent, ' ');
+ N->printr(OS, G);
+ // Having printed this SDNode, walk the children:
+ for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
+ const SDNode *child = N->getOperand(i).getNode();
+ if (i) OS << ",";
+ OS << " ";
+ if (child->getNumOperands() == 0) {
+ // This child has no grandchildren; print it inline right here.
+ child->printr(OS, G);
+ once.insert(child);
+ } else { // Just the address. FIXME: also print the child's opcode
+ OS << (void*)child;
+ if (unsigned RN = N->getOperand(i).getResNo())
+ OS << ":" << RN;
+ }
+ }
+ OS << "\n";
+ // Dump children that have grandchildren on their own line(s).
+ for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
+ const SDNode *child = N->getOperand(i).getNode();
+ DumpNodesr(OS, child, indent+2, G, once);
+ }
+}
+
+void SDNode::dumpr() const {
+ VisitedSDNodeSet once;
+ DumpNodesr(errs(), this, 0, 0, once);
+ errs().flush();
+}
+
const Type *ConstantPoolSDNode::getType() const {
if (isMachineConstantPoolEntry())
return Val.MachineCPVal->getType();