diff options
| author | Evan Cheng <evan.cheng@apple.com> | 2006-02-01 06:06:31 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2006-02-01 06:06:31 +0000 |
| commit | 657416cfba9f0b2823cf885391441971edcf4190 (patch) | |
| tree | 3c02df0026ff2fd559f84df1868bcbc724baeab6 /utils/TableGen/DAGISelEmitter.cpp | |
| parent | 09f0bd39b16eec73e067561c0c7546902ce97c30 (diff) | |
| download | llvm-657416cfba9f0b2823cf885391441971edcf4190.tar.gz llvm-657416cfba9f0b2823cf885391441971edcf4190.tar.bz2 llvm-657416cfba9f0b2823cf885391441971edcf4190.tar.xz | |
If a pattern's root node is a constant, its size should be 3 rather than 2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25870 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'utils/TableGen/DAGISelEmitter.cpp')
| -rw-r--r-- | utils/TableGen/DAGISelEmitter.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/utils/TableGen/DAGISelEmitter.cpp b/utils/TableGen/DAGISelEmitter.cpp index c384f53623..f0ecd66fb2 100644 --- a/utils/TableGen/DAGISelEmitter.cpp +++ b/utils/TableGen/DAGISelEmitter.cpp @@ -1709,6 +1709,10 @@ static unsigned getPatternSize(TreePatternNode *P, DAGISelEmitter &ISE) { P->getExtTypeNum(0) == MVT::Flag && "Not a valid pattern node to size!"); unsigned Size = 2; // The node itself. + // If the root node is a ConstantSDNode, increases its size. + // e.g. (set R32:$dst, 0). + if (P->isLeaf() && dynamic_cast<IntInit*>(P->getLeafValue())) + Size++; // FIXME: This is a hack to statically increase the priority of patterns // which maps a sub-dag to a complex pattern. e.g. favors LEA over ADD. |