diff options
Diffstat (limited to 'lib/Target/Hexagon/HexagonISelLowering.cpp')
| -rw-r--r-- | lib/Target/Hexagon/HexagonISelLowering.cpp | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/lib/Target/Hexagon/HexagonISelLowering.cpp b/lib/Target/Hexagon/HexagonISelLowering.cpp index fac931a..e5c5400 100644 --- a/lib/Target/Hexagon/HexagonISelLowering.cpp +++ b/lib/Target/Hexagon/HexagonISelLowering.cpp @@ -1365,6 +1365,29 @@ HexagonTargetLowering::HexagonTargetLowering(HexagonTargetMachine setOperationAction(ISD::FREM , MVT::f32, Expand); setOperationAction(ISD::FSINCOS, MVT::f64, Expand); setOperationAction(ISD::FSINCOS, MVT::f32, Expand); + + // In V4, we have double word add/sub with carry. The problem with + // modelling this instruction is that it produces 2 results - Rdd and Px. + // To model update of Px, we will have to use Defs[p0..p3] which will + // cause any predicate live range to spill. So, we pretend we dont't + // have these instructions. + setOperationAction(ISD::ADDE, MVT::i8, Expand); + setOperationAction(ISD::ADDE, MVT::i16, Expand); + setOperationAction(ISD::ADDE, MVT::i32, Expand); + setOperationAction(ISD::ADDE, MVT::i64, Expand); + setOperationAction(ISD::SUBE, MVT::i8, Expand); + setOperationAction(ISD::SUBE, MVT::i16, Expand); + setOperationAction(ISD::SUBE, MVT::i32, Expand); + setOperationAction(ISD::SUBE, MVT::i64, Expand); + setOperationAction(ISD::ADDC, MVT::i8, Expand); + setOperationAction(ISD::ADDC, MVT::i16, Expand); + setOperationAction(ISD::ADDC, MVT::i32, Expand); + setOperationAction(ISD::ADDC, MVT::i64, Expand); + setOperationAction(ISD::SUBC, MVT::i8, Expand); + setOperationAction(ISD::SUBC, MVT::i16, Expand); + setOperationAction(ISD::SUBC, MVT::i32, Expand); + setOperationAction(ISD::SUBC, MVT::i64, Expand); + setOperationAction(ISD::CTPOP, MVT::i32, Expand); setOperationAction(ISD::CTPOP, MVT::i64, Expand); setOperationAction(ISD::CTTZ , MVT::i32, Expand); |