diff options
Diffstat (limited to 'llvm/lib/Target/ARM/ARMISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/ARM/ARMISelLowering.cpp | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/llvm/lib/Target/ARM/ARMISelLowering.cpp b/llvm/lib/Target/ARM/ARMISelLowering.cpp index 08355c853c4..4f848b02cbc 100644 --- a/llvm/lib/Target/ARM/ARMISelLowering.cpp +++ b/llvm/lib/Target/ARM/ARMISelLowering.cpp @@ -226,6 +226,13 @@ void ARMTargetLowering::setAllExpand(MVT VT) { setOperationAction(Opc, VT, Expand); } +void ARMTargetLowering::addAllExtLoads(const MVT From, const MVT To, + LegalizeAction Action) { + setLoadExtAction(ISD::EXTLOAD, From, To, Action); + setLoadExtAction(ISD::ZEXTLOAD, From, To, Action); + setLoadExtAction(ISD::SEXTLOAD, From, To, Action); +} + void ARMTargetLowering::addMVEVectorTypes(bool HasMVEFP) { const MVT IntTypes[] = { MVT::v16i8, MVT::v8i16, MVT::v4i32 }; @@ -277,6 +284,16 @@ void ARMTargetLowering::addMVEVectorTypes(bool HasMVEFP) { setOperationAction(ISD::LOAD, VT, Legal); setOperationAction(ISD::STORE, VT, Legal); } + + // It is legal to extload from v4i8 to v4i16 or v4i32. + addAllExtLoads(MVT::v8i16, MVT::v8i8, Legal); + addAllExtLoads(MVT::v4i32, MVT::v4i16, Legal); + addAllExtLoads(MVT::v4i32, MVT::v4i8, Legal); + + // Some truncating stores are legal too. + setTruncStoreAction(MVT::v4i32, MVT::v4i16, Legal); + setTruncStoreAction(MVT::v4i32, MVT::v4i8, Legal); + setTruncStoreAction(MVT::v8i16, MVT::v8i8, Legal); } ARMTargetLowering::ARMTargetLowering(const TargetMachine &TM, @@ -587,9 +604,7 @@ ARMTargetLowering::ARMTargetLowering(const TargetMachine &TM, for (MVT VT : MVT::vector_valuetypes()) { for (MVT InnerVT : MVT::vector_valuetypes()) { setTruncStoreAction(VT, InnerVT, Expand); - setLoadExtAction(ISD::SEXTLOAD, VT, InnerVT, Expand); - setLoadExtAction(ISD::ZEXTLOAD, VT, InnerVT, Expand); - setLoadExtAction(ISD::EXTLOAD, VT, InnerVT, Expand); + addAllExtLoads(VT, InnerVT, Expand); } setOperationAction(ISD::MULHS, VT, Expand); @@ -13197,7 +13212,9 @@ bool ARMTargetLowering::allowsMisalignedMemoryAccesses(EVT VT, unsigned, return false; if (Ty != MVT::v16i8 && Ty != MVT::v8i16 && Ty != MVT::v8f16 && Ty != MVT::v4i32 && Ty != MVT::v4f32 && Ty != MVT::v2i64 && - Ty != MVT::v2f64) + Ty != MVT::v2f64 && + // These are for truncated stores + Ty != MVT::v4i8 && Ty != MVT::v8i8 && Ty != MVT::v4i16) return false; if (Subtarget->isLittle()) { |
