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[AVX] Add INSERT_SUBVECTOR and support it on x86. This provides a

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default implementation for x86, going through the stack in a similr
fashion to how the codegen implements BUILD_VECTOR.  Eventually this
will get matched to VINSERTF128 if AVX is available.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124307 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Greene
2011-01-26 19:13:22 +00:00
parent d2c9793bdf
commit cfe33c46aa
6 changed files with 105 additions and 1 deletions
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include/llvm/Target/TargetSelectionDAG.td
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@ -446,6 +446,7 @@ def vector_extract_subvec : SDNode<"ISD::EXTRACT_SUBVECTOR",
// This operator does subvector type checking.
def extract_subvector : SDNode<"ISD::EXTRACT_SUBVECTOR", SDTSubVecExtract, []>;
def insert_subvector : SDNode<"ISD::INSERT_SUBVECTOR", SDTSubVecInsert, []>;
// Nodes for intrinsics, you should use the intrinsic itself and let tblgen use
// these internally. Don't reference these directly.