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| author | Craig Topper <craig.topper@gmail.com> | 2016-05-02 01:53:30 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2016-05-02 01:53:30 +0000 |
| commit | e3c1e225d7581a15a8c1ef766ef958386b24c850 (patch) | |
| tree | 8f0aa4f6a2c7fd9ddc0677d38fa5777f3561c648 /llvm/utils/TableGen | |
| parent | 6eec8d6c6f2c179ecea70087bf5f5dff3052dd4b (diff) | |
| download | bcm5719-llvm-e3c1e225d7581a15a8c1ef766ef958386b24c850.tar.gz bcm5719-llvm-e3c1e225d7581a15a8c1ef766ef958386b24c850.zip | |
[CodeGen] Add OPC_MoveChild0-OPC_MoveChild7 opcodes to isel matching tables to optimize table size. Shaves about 12K off the X86 matcher table.
llvm-svn: 268209
Diffstat (limited to 'llvm/utils/TableGen')
| -rw-r--r-- | llvm/utils/TableGen/DAGISelMatcherEmitter.cpp | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/llvm/utils/TableGen/DAGISelMatcherEmitter.cpp b/llvm/utils/TableGen/DAGISelMatcherEmitter.cpp index 4f944beaa50..28473996a5c 100644 --- a/llvm/utils/TableGen/DAGISelMatcherEmitter.cpp +++ b/llvm/utils/TableGen/DAGISelMatcherEmitter.cpp @@ -247,9 +247,16 @@ EmitMatcher(const Matcher *N, unsigned Indent, unsigned CurrentIdx, OS << "OPC_CaptureGlueInput,\n"; return 1; - case Matcher::MoveChild: - OS << "OPC_MoveChild, " << cast<MoveChildMatcher>(N)->getChildNo() << ",\n"; - return 2; + case Matcher::MoveChild: { + const auto *MCM = cast<MoveChildMatcher>(N); + + OS << "OPC_MoveChild"; + // Handle the specialized forms. + if (MCM->getChildNo() >= 8) + OS << ", "; + OS << MCM->getChildNo() << ",\n"; + return (MCM->getChildNo() >= 8) ? 2 : 1; + } case Matcher::MoveParent: OS << "OPC_MoveParent,\n"; |
