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| author | Chad Rosier <mcrosier@codeaurora.org> | 2017-01-10 17:20:33 +0000 |
|---|---|---|
| committer | Chad Rosier <mcrosier@codeaurora.org> | 2017-01-10 17:20:33 +0000 |
| commit | 3daffbf6a86430277f85c05abb93c1bd3316b8db (patch) | |
| tree | 5850d60f28daa5de5828b8d5bd689e36e0108563 /llvm/lib/Target | |
| parent | 5a4a1be690272a7d388e2fde1abf9d2f4e45aa18 (diff) | |
| download | bcm5719-llvm-3daffbf6a86430277f85c05abb93c1bd3316b8db.tar.gz bcm5719-llvm-3daffbf6a86430277f85c05abb93c1bd3316b8db.zip | |
[AArch64] Add support for lowering bitreverse to the rbit instruction.
Differential Revision: https://reviews.llvm.org/D28379
llvm-svn: 291575
Diffstat (limited to 'llvm/lib/Target')
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64ISelLowering.cpp | 2 | ||||
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64InstrInfo.td | 5 |
2 files changed, 3 insertions, 4 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp b/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp index 74a01835171..7b581a706fa 100644 --- a/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp +++ b/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp @@ -159,6 +159,8 @@ AArch64TargetLowering::AArch64TargetLowering(const TargetMachine &TM, setOperationAction(ISD::SETCC, MVT::i64, Custom); setOperationAction(ISD::SETCC, MVT::f32, Custom); setOperationAction(ISD::SETCC, MVT::f64, Custom); + setOperationAction(ISD::BITREVERSE, MVT::i32, Legal); + setOperationAction(ISD::BITREVERSE, MVT::i64, Legal); setOperationAction(ISD::BRCOND, MVT::Other, Expand); setOperationAction(ISD::BR_CC, MVT::i32, Custom); setOperationAction(ISD::BR_CC, MVT::i64, Custom); diff --git a/llvm/lib/Target/AArch64/AArch64InstrInfo.td b/llvm/lib/Target/AArch64/AArch64InstrInfo.td index c5b95f282ea..2244baacca1 100644 --- a/llvm/lib/Target/AArch64/AArch64InstrInfo.td +++ b/llvm/lib/Target/AArch64/AArch64InstrInfo.td @@ -951,10 +951,7 @@ def : Pat<(not GPR64:$Xm), (ORNXrr XZR, GPR64:$Xm)>; defm CLS : OneOperandData<0b101, "cls">; defm CLZ : OneOperandData<0b100, "clz", ctlz>; -defm RBIT : OneOperandData<0b000, "rbit">; - -def : Pat<(int_aarch64_rbit GPR32:$Rn), (RBITWr $Rn)>; -def : Pat<(int_aarch64_rbit GPR64:$Rn), (RBITXr $Rn)>; +defm RBIT : OneOperandData<0b000, "rbit", bitreverse>; def REV16Wr : OneWRegData<0b001, "rev16", UnOpFrag<(rotr (bswap node:$LHS), (i64 16))>>; |
