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Hexagon: Expand addc, adde, subc and sube.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176505 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jyotsna Verma
2013-03-05 19:04:47 +00:00
parent 6936ebd700
commit 18daead3ff
3 changed files with 86 additions and 0 deletions
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23
lib/Target/Hexagon/HexagonISelLowering.cpp
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@@ -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);