Add a fixme message about canonicalizing floating-point vector types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78897 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index 2307602..14cab09 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -2442,6 +2442,8 @@
// DAG nodes, instead of keeping them as shuffles and matching them again
// during code selection. This is more efficient and avoids the possibility
// of inconsistencies between legalization and selection.
+ // FIXME: floating-point vectors should be canonicalized to integer vectors
+ // of the same time so that they get CSEd properly.
if (isVREVMask(SVN, 64))
return DAG.getNode(ARMISD::VREV64, dl, VT, SVN->getOperand(0));
if (isVREVMask(SVN, 32))