Expand ADDO/SUBO on Hexagon
llvm-svn: 234795
diff --git a/llvm/lib/Target/Hexagon/HexagonISelLowering.cpp b/llvm/lib/Target/Hexagon/HexagonISelLowering.cpp
index 3e75490..63900e0 100644
--- a/llvm/lib/Target/Hexagon/HexagonISelLowering.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonISelLowering.cpp
@@ -1717,6 +1717,14 @@
setOperationAction(ISD::SUBC, MVT::i32, Expand);
setOperationAction(ISD::SUBC, MVT::i64, Expand);
+ // Only add and sub that detect overflow are the saturating ones.
+ for (MVT VT : MVT::integer_valuetypes()) {
+ setOperationAction(ISD::UADDO, VT, Expand);
+ setOperationAction(ISD::SADDO, VT, Expand);
+ setOperationAction(ISD::USUBO, VT, Expand);
+ setOperationAction(ISD::SSUBO, VT, Expand);
+ }
+
setOperationAction(ISD::CTPOP, MVT::i32, Expand);
setOperationAction(ISD::CTPOP, MVT::i64, Expand);
setOperationAction(ISD::CTTZ, MVT::i32, Expand);