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| author | Craig Topper <craig.topper@gmail.com> | 2016-03-07 07:29:12 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2016-03-07 07:29:12 +0000 |
| commit | 267bdb20940596b51bed0db991d7f2a19c161846 (patch) | |
| tree | 060755f74689add880aa8492be0c35ce7469b15e | |
| parent | 67a1830c6a67930d326e33f96bc20d041497505b (diff) | |
| download | bcm5719-llvm-267bdb20940596b51bed0db991d7f2a19c161846.tar.gz bcm5719-llvm-267bdb20940596b51bed0db991d7f2a19c161846.zip | |
[CodeGen] Add space-optimized EmitMergeInputChains1_2 to the DAG isel matching tables. Shaves about 5100 bytes from the X86 matcher table. NFC
llvm-svn: 262815
| -rw-r--r-- | llvm/include/llvm/CodeGen/SelectionDAGISel.h | 1 | ||||
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | 5 | ||||
| -rw-r--r-- | llvm/utils/TableGen/DAGISelMatcherEmitter.cpp | 4 |
3 files changed, 6 insertions, 4 deletions
diff --git a/llvm/include/llvm/CodeGen/SelectionDAGISel.h b/llvm/include/llvm/CodeGen/SelectionDAGISel.h index a011e4c338c..57386622399 100644 --- a/llvm/include/llvm/CodeGen/SelectionDAGISel.h +++ b/llvm/include/llvm/CodeGen/SelectionDAGISel.h @@ -140,6 +140,7 @@ public: OPC_EmitMergeInputChains, OPC_EmitMergeInputChains1_0, OPC_EmitMergeInputChains1_1, + OPC_EmitMergeInputChains1_2, OPC_EmitCopyToReg, OPC_EmitNodeXForm, OPC_EmitNode, diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp index 2666951914a..1a0c902d907 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp @@ -3051,7 +3051,8 @@ SelectCodeCommon(SDNode *NodeToMatch, const unsigned char *MatcherTable, } case OPC_EmitMergeInputChains1_0: // OPC_EmitMergeInputChains, 1, 0 - case OPC_EmitMergeInputChains1_1: { // OPC_EmitMergeInputChains, 1, 1 + case OPC_EmitMergeInputChains1_1: // OPC_EmitMergeInputChains, 1, 1 + case OPC_EmitMergeInputChains1_2: { // OPC_EmitMergeInputChains, 1, 2 // These are space-optimized forms of OPC_EmitMergeInputChains. assert(!InputChain.getNode() && "EmitMergeInputChains should be the first chain producing node"); @@ -3059,7 +3060,7 @@ SelectCodeCommon(SDNode *NodeToMatch, const unsigned char *MatcherTable, "Should only have one EmitMergeInputChains per match"); // Read all of the chained nodes. - unsigned RecNo = Opcode == OPC_EmitMergeInputChains1_1; + unsigned RecNo = Opcode - OPC_EmitMergeInputChains1_0; assert(RecNo < RecordedNodes.size() && "Invalid EmitMergeInputChains"); ChainNodesMatched.push_back(RecordedNodes[RecNo].first.getNode()); diff --git a/llvm/utils/TableGen/DAGISelMatcherEmitter.cpp b/llvm/utils/TableGen/DAGISelMatcherEmitter.cpp index 26f53dca636..4f944beaa50 100644 --- a/llvm/utils/TableGen/DAGISelMatcherEmitter.cpp +++ b/llvm/utils/TableGen/DAGISelMatcherEmitter.cpp @@ -500,8 +500,8 @@ EmitMatcher(const Matcher *N, unsigned Indent, unsigned CurrentIdx, const EmitMergeInputChainsMatcher *MN = cast<EmitMergeInputChainsMatcher>(N); - // Handle the specialized forms OPC_EmitMergeInputChains1_0 and 1_1. - if (MN->getNumNodes() == 1 && MN->getNode(0) < 2) { + // Handle the specialized forms OPC_EmitMergeInputChains1_0, 1_1, and 1_2. + if (MN->getNumNodes() == 1 && MN->getNode(0) < 3) { OS << "OPC_EmitMergeInputChains1_" << MN->getNode(0) << ",\n"; return 1; } |
