diff options
| author | Dan Gohman <gohman@apple.com> | 2010-03-09 02:15:05 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-03-09 02:15:05 +0000 |
| commit | 19b3826d0f0e299447d0a1c47d4fb2899d32d31f (patch) | |
| tree | adad3e51837dff4d094ff5737c804b1102b5e3dd | |
| parent | 1e233f510c3d5d26de97d90ec6b061a6643e892c (diff) | |
Attempt to make this debug output meaningful, both in the case of
multibyte opcodes and in the case of multiple scopes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98036 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp index 32fdd30ac8..a82f0f71fe 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp @@ -2141,6 +2141,9 @@ SelectCodeCommon(SDNode *NodeToMatch, const unsigned char *MatcherTable, while (1) { assert(MatcherIndex < TableSize && "Invalid index"); +#ifndef NDEBUG + unsigned CurrentOpcodeIndex = MatcherIndex; +#endif BuiltinOpcodes Opcode = (BuiltinOpcodes)MatcherTable[MatcherIndex++]; switch (Opcode) { case OPC_Scope: { @@ -2666,6 +2669,7 @@ SelectCodeCommon(SDNode *NodeToMatch, const unsigned char *MatcherTable, // If the code reached this point, then the match failed. See if there is // another child to try in the current 'Scope', otherwise pop it until we // find a case to check. + DEBUG(errs() << " Match failed at index " << CurrentOpcodeIndex << "\n"); while (1) { if (MatchScopes.empty()) { CannotYetSelect(NodeToMatch); @@ -2680,13 +2684,12 @@ SelectCodeCommon(SDNode *NodeToMatch, const unsigned char *MatcherTable, NodeStack.append(LastScope.NodeStack.begin(), LastScope.NodeStack.end()); N = NodeStack.back(); - DEBUG(errs() << " Match failed at index " << (MatcherIndex-1) - << " continuing at " << LastScope.FailIndex << "\n"); - if (LastScope.NumMatchedMemRefs != MatchedMemRefs.size()) MatchedMemRefs.resize(LastScope.NumMatchedMemRefs); MatcherIndex = LastScope.FailIndex; + DEBUG(errs() << " Continuing at " << MatcherIndex << "\n"); + InputChain = LastScope.InputChain; InputFlag = LastScope.InputFlag; if (!LastScope.HasChainNodesMatched) |