diff options
Diffstat (limited to 'llvm/lib/Target/PowerPC/PPCISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCISelLowering.cpp | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp index 00f59bba52e8..ca1649fae258 100644 --- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp @@ -167,6 +167,23 @@ PPCTargetLowering::PPCTargetLowering(const PPCTargetMachine &TM, setLoadExtAction(ISD::SEXTLOAD, VT, MVT::i8, Expand); } + if (Subtarget.isISA3_0()) { + setLoadExtAction(ISD::EXTLOAD, MVT::f64, MVT::f16, Legal); + setLoadExtAction(ISD::EXTLOAD, MVT::f32, MVT::f16, Legal); + setTruncStoreAction(MVT::f64, MVT::f16, Legal); + setTruncStoreAction(MVT::f32, MVT::f16, Legal); + } else { + // No extending loads from f16 or HW conversions back and forth. + setLoadExtAction(ISD::EXTLOAD, MVT::f64, MVT::f16, Expand); + setOperationAction(ISD::FP16_TO_FP, MVT::f64, Expand); + setOperationAction(ISD::FP_TO_FP16, MVT::f64, Expand); + setLoadExtAction(ISD::EXTLOAD, MVT::f32, MVT::f16, Expand); + setOperationAction(ISD::FP16_TO_FP, MVT::f32, Expand); + setOperationAction(ISD::FP_TO_FP16, MVT::f32, Expand); + setTruncStoreAction(MVT::f64, MVT::f16, Expand); + setTruncStoreAction(MVT::f32, MVT::f16, Expand); + } + setTruncStoreAction(MVT::f64, MVT::f32, Expand); // PowerPC has pre-inc load and store's. @@ -677,6 +694,7 @@ PPCTargetLowering::PPCTargetLowering(const PPCTargetMachine &TM, setLoadExtAction(ISD::EXTLOAD, VT, InnerVT, Expand); } } + setOperationAction(ISD::SELECT_CC, MVT::v4i32, Expand); if (!Subtarget.hasP8Vector()) { setOperationAction(ISD::SMAX, MVT::v2i64, Expand); setOperationAction(ISD::SMIN, MVT::v2i64, Expand); @@ -10361,6 +10379,7 @@ SDValue PPCTargetLowering::LowerFP_EXTEND(SDValue Op, SelectionDAG &DAG) const { assert(Op.getOpcode() == ISD::FP_EXTEND && "Should only be called for ISD::FP_EXTEND"); + // FIXME: handle extends from half precision float vectors on P9. // We only want to custom lower an extend from v2f32 to v2f64. if (Op.getValueType() != MVT::v2f64 || Op.getOperand(0).getValueType() != MVT::v2f32) @@ -10574,6 +10593,11 @@ void PPCTargetLowering::ReplaceNodeResults(SDNode *N, case ISD::BITCAST: // Don't handle bitcast here. return; + case ISD::FP_EXTEND: + SDValue Lowered = LowerFP_EXTEND(SDValue(N, 0), DAG); + if (Lowered) + Results.push_back(Lowered); + return; } } @@ -15255,7 +15279,8 @@ bool PPCTargetLowering::allowsMisalignedMemoryAccesses(EVT VT, if (!VT.isSimple()) return false; - if (VT.isFloatingPoint() && !Subtarget.allowsUnalignedFPAccess()) + if (VT.isFloatingPoint() && !VT.isVector() && + !Subtarget.allowsUnalignedFPAccess()) return false; if (VT.getSimpleVT().isVector()) { |