diff options
| author | Akira Hatanaka <ahatanaka@mips.com> | 2011-10-03 21:06:13 +0000 |
|---|---|---|
| committer | Akira Hatanaka <ahatanaka@mips.com> | 2011-10-03 21:06:13 +0000 |
| commit | dda4a07cd818fdfe2b49412e32e0e12d9e566e31 (patch) | |
| tree | 59d9f1b80a2e26173247c054871f5de39415e573 /lib/Target/Mips/MipsISelLowering.cpp | |
| parent | 0e6a24d92ab4661bb39f838ac390ccb17f649cb5 (diff) | |
Add support for 64-bit divide instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141024 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Mips/MipsISelLowering.cpp')
| -rw-r--r-- | lib/Target/Mips/MipsISelLowering.cpp | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/lib/Target/Mips/MipsISelLowering.cpp b/lib/Target/Mips/MipsISelLowering.cpp index 45f00aeb5b..ea017c64df 100644 --- a/lib/Target/Mips/MipsISelLowering.cpp +++ b/lib/Target/Mips/MipsISelLowering.cpp @@ -138,6 +138,10 @@ MipsTargetLowering(MipsTargetMachine &TM) setOperationAction(ISD::SREM, MVT::i32, Expand); setOperationAction(ISD::UDIV, MVT::i32, Expand); setOperationAction(ISD::UREM, MVT::i32, Expand); + setOperationAction(ISD::SDIV, MVT::i64, Expand); + setOperationAction(ISD::SREM, MVT::i64, Expand); + setOperationAction(ISD::UDIV, MVT::i64, Expand); + setOperationAction(ISD::UREM, MVT::i64, Expand); // Operations not directly supported by Mips. setOperationAction(ISD::BR_JT, MVT::Other, Expand); @@ -413,6 +417,9 @@ static SDValue PerformDivRemCombine(SDNode *N, SelectionDAG& DAG, if (DCI.isBeforeLegalizeOps()) return SDValue(); + EVT Ty = N->getValueType(0); + unsigned LO = (Ty == MVT::i32) ? Mips::LO : Mips::LO64; + unsigned HI = (Ty == MVT::i32) ? Mips::HI : Mips::HI64; unsigned opc = N->getOpcode() == ISD::SDIVREM ? MipsISD::DivRem : MipsISD::DivRemU; DebugLoc dl = N->getDebugLoc(); @@ -424,7 +431,7 @@ static SDValue PerformDivRemCombine(SDNode *N, SelectionDAG& DAG, // insert MFLO if (N->hasAnyUseOfValue(0)) { - SDValue CopyFromLo = DAG.getCopyFromReg(InChain, dl, Mips::LO, MVT::i32, + SDValue CopyFromLo = DAG.getCopyFromReg(InChain, dl, LO, Ty, InGlue); DAG.ReplaceAllUsesOfValueWith(SDValue(N, 0), CopyFromLo); InChain = CopyFromLo.getValue(1); @@ -434,7 +441,7 @@ static SDValue PerformDivRemCombine(SDNode *N, SelectionDAG& DAG, // insert MFHI if (N->hasAnyUseOfValue(1)) { SDValue CopyFromHi = DAG.getCopyFromReg(InChain, dl, - Mips::HI, MVT::i32, InGlue); + HI, Ty, InGlue); DAG.ReplaceAllUsesOfValueWith(SDValue(N, 1), CopyFromHi); } |