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| author | Oliver Cruickshank <oliver.cruickshank@arm.com> | 2019-09-16 15:20:10 +0000 |
|---|---|---|
| committer | Oliver Cruickshank <oliver.cruickshank@arm.com> | 2019-09-16 15:20:10 +0000 |
| commit | ee6fbebbaff5af0a0fbe58a0e33ef191340223ea (patch) | |
| tree | f08f5f99c4e1df46adf2b57bc6af7fb011f92523 /llvm/lib | |
| parent | e9510a6cadb1aeb407184514803065413f8dd7bf (diff) | |
| download | bcm5719-llvm-ee6fbebbaff5af0a0fbe58a0e33ef191340223ea.tar.gz bcm5719-llvm-ee6fbebbaff5af0a0fbe58a0e33ef191340223ea.zip | |
[ARM] Add patterns for BSWAP intrinsic on MVE
BSWAP can use the VREV instruction on MVE to produce better results than
expanding.
llvm-svn: 372002
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/ARM/ARMISelLowering.cpp | 1 | ||||
| -rw-r--r-- | llvm/lib/Target/ARM/ARMInstrMVE.td | 7 |
2 files changed, 8 insertions, 0 deletions
diff --git a/llvm/lib/Target/ARM/ARMISelLowering.cpp b/llvm/lib/Target/ARM/ARMISelLowering.cpp index c5848c95094..6f7b6214e95 100644 --- a/llvm/lib/Target/ARM/ARMISelLowering.cpp +++ b/llvm/lib/Target/ARM/ARMISelLowering.cpp @@ -264,6 +264,7 @@ void ARMTargetLowering::addMVEVectorTypes(bool HasMVEFP) { setOperationAction(ISD::CTLZ, VT, Legal); setOperationAction(ISD::CTTZ, VT, Expand); setOperationAction(ISD::BITREVERSE, VT, Legal); + setOperationAction(ISD::BSWAP, VT, Legal); // No native support for these. setOperationAction(ISD::UDIV, VT, Expand); diff --git a/llvm/lib/Target/ARM/ARMInstrMVE.td b/llvm/lib/Target/ARM/ARMInstrMVE.td index b931dd01d29..9623b4d1d57 100644 --- a/llvm/lib/Target/ARM/ARMInstrMVE.td +++ b/llvm/lib/Target/ARM/ARMInstrMVE.td @@ -1058,6 +1058,13 @@ def MVE_VREV32_16 : MVE_VREV<"vrev32", "16", 0b01, 0b01>; def MVE_VREV16_8 : MVE_VREV<"vrev16", "8", 0b00, 0b10>; let Predicates = [HasMVEInt] in { + def : Pat<(v8i16 (bswap (v8i16 MQPR:$src))), + (v8i16 (MVE_VREV16_8 (v8i16 MQPR:$src)))>; + def : Pat<(v4i32 (bswap (v4i32 MQPR:$src))), + (v4i32 (MVE_VREV32_8 (v4i32 MQPR:$src)))>; +} + +let Predicates = [HasMVEInt] in { def : Pat<(v4i32 (ARMvrev64 (v4i32 MQPR:$src))), (v4i32 (MVE_VREV64_32 (v4i32 MQPR:$src)))>; def : Pat<(v8i16 (ARMvrev64 (v8i16 MQPR:$src))), |
