Revise per review of previous patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41645 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index f4ee33f..156c739 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -979,20 +979,32 @@
APFloat::cmpResult R = N1C->getValueAPF().compare(N2C->getValueAPF());
switch (Cond) {
default: break;
- case ISD::SETOEQ:
- case ISD::SETEQ: return getConstant(R==APFloat::cmpEqual, VT);
- case ISD::SETONE:
- case ISD::SETNE: return getConstant(R==APFloat::cmpGreaterThan ||
+ case ISD::SETEQ: if (R==APFloat::cmpUnordered)
+ return getNode(ISD::UNDEF, VT);
+ // fall through
+ case ISD::SETOEQ: return getConstant(R==APFloat::cmpEqual, VT);
+ case ISD::SETNE: if (R==APFloat::cmpUnordered)
+ return getNode(ISD::UNDEF, VT);
+ // fall through
+ case ISD::SETONE: return getConstant(R==APFloat::cmpGreaterThan ||
R==APFloat::cmpLessThan, VT);
- case ISD::SETOLT:
- case ISD::SETLT: return getConstant(R==APFloat::cmpLessThan, VT);
- case ISD::SETOGT:
- case ISD::SETGT: return getConstant(R==APFloat::cmpGreaterThan, VT);
- case ISD::SETOLE:
- case ISD::SETLE: return getConstant(R==APFloat::cmpLessThan ||
+ case ISD::SETLT: if (R==APFloat::cmpUnordered)
+ return getNode(ISD::UNDEF, VT);
+ // fall through
+ case ISD::SETOLT: return getConstant(R==APFloat::cmpLessThan, VT);
+ case ISD::SETGT: if (R==APFloat::cmpUnordered)
+ return getNode(ISD::UNDEF, VT);
+ // fall through
+ case ISD::SETOGT: return getConstant(R==APFloat::cmpGreaterThan, VT);
+ case ISD::SETLE: if (R==APFloat::cmpUnordered)
+ return getNode(ISD::UNDEF, VT);
+ // fall through
+ case ISD::SETOLE: return getConstant(R==APFloat::cmpLessThan ||
R==APFloat::cmpEqual, VT);
- case ISD::SETOGE:
- case ISD::SETGE: return getConstant(R==APFloat::cmpGreaterThan ||
+ case ISD::SETGE: if (R==APFloat::cmpUnordered)
+ return getNode(ISD::UNDEF, VT);
+ // fall through
+ case ISD::SETOGE: return getConstant(R==APFloat::cmpGreaterThan ||
R==APFloat::cmpEqual, VT);
case ISD::SETO: return getConstant(R!=APFloat::cmpUnordered, VT);
case ISD::SETUO: return getConstant(R==APFloat::cmpUnordered, VT);