LegalizeTypes support for scalarizing a vector store
and splitting extract_subvector. This fixes nine
"make check" testcases, for example
2008-02-04-ExtractSubvector.ll and (partially)
CodeGen/Generic/vector.ll.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47384 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index ef28aa5..28f612d 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -2145,6 +2145,10 @@
return getConstant(C->getValue() >> Shift, VT);
}
break;
+ case ISD::EXTRACT_SUBVECTOR:
+ if (N1.getValueType() == VT) // Trivial extraction.
+ return N1;
+ break;
}
if (N1C) {