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| author | Richard Osborne <richard@xmos.com> | 2010-03-10 13:27:10 +0000 |
|---|---|---|
| committer | Richard Osborne <richard@xmos.com> | 2010-03-10 13:27:10 +0000 |
| commit | a2cc0613d05f9545947478942811c04f27601649 (patch) | |
| tree | c70323bab4a06d239bfa9e18662a78af14580504 /lib/Target/XCore | |
| parent | a7e78402b8b3d3583e7b63fcca99a4034a2f4db4 (diff) | |
| download | external_llvm-a2cc0613d05f9545947478942811c04f27601649.zip external_llvm-a2cc0613d05f9545947478942811c04f27601649.tar.gz external_llvm-a2cc0613d05f9545947478942811c04f27601649.tar.bz2 | |
Prefer LMUL to MACCU as LMUL has no tied operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98153 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/XCore')
| -rw-r--r-- | lib/Target/XCore/XCoreISelDAGToDAG.cpp | 6 | ||||
| -rw-r--r-- | lib/Target/XCore/XCoreISelLowering.cpp | 7 | ||||
| -rw-r--r-- | lib/Target/XCore/XCoreISelLowering.h | 3 |
3 files changed, 13 insertions, 3 deletions
diff --git a/lib/Target/XCore/XCoreISelDAGToDAG.cpp b/lib/Target/XCore/XCoreISelDAGToDAG.cpp index 12967d4..29a6ab7 100644 --- a/lib/Target/XCore/XCoreISelDAGToDAG.cpp +++ b/lib/Target/XCore/XCoreISelDAGToDAG.cpp @@ -220,6 +220,12 @@ SDNode *XCoreDAGToDAGISel::Select(SDNode *N) { return CurDAG->getMachineNode(XCore::MACCS_l4r, dl, MVT::i32, MVT::i32, Ops, 4); } + case XCoreISD::LMUL: { + SDValue Ops[] = { N->getOperand(0), N->getOperand(1), + N->getOperand(2), N->getOperand(3) }; + return CurDAG->getMachineNode(XCore::LMUL_l6r, dl, MVT::i32, MVT::i32, + Ops, 4); + } // Other cases are autogenerated. } } diff --git a/lib/Target/XCore/XCoreISelLowering.cpp b/lib/Target/XCore/XCoreISelLowering.cpp index 70ceadd..d27adf4 100644 --- a/lib/Target/XCore/XCoreISelLowering.cpp +++ b/lib/Target/XCore/XCoreISelLowering.cpp @@ -54,6 +54,7 @@ getTargetNodeName(unsigned Opcode) const case XCoreISD::RETSP : return "XCoreISD::RETSP"; case XCoreISD::LADD : return "XCoreISD::LADD"; case XCoreISD::LSUB : return "XCoreISD::LSUB"; + case XCoreISD::LMUL : return "XCoreISD::LMUL"; case XCoreISD::MACCU : return "XCoreISD::MACCU"; case XCoreISD::MACCS : return "XCoreISD::MACCS"; case XCoreISD::BR_JT : return "XCoreISD::BR_JT"; @@ -573,9 +574,9 @@ LowerUMUL_LOHI(SDValue Op, SelectionDAG &DAG) SDValue LHS = Op.getOperand(0); SDValue RHS = Op.getOperand(1); SDValue Zero = DAG.getConstant(0, MVT::i32); - SDValue Hi = DAG.getNode(XCoreISD::MACCU, dl, - DAG.getVTList(MVT::i32, MVT::i32), Zero, Zero, - LHS, RHS); + SDValue Hi = DAG.getNode(XCoreISD::LMUL, dl, + DAG.getVTList(MVT::i32, MVT::i32), LHS, RHS, + Zero, Zero); SDValue Lo(Hi.getNode(), 1); SDValue Ops[] = { Lo, Hi }; return DAG.getMergeValues(Ops, 2, dl); diff --git a/lib/Target/XCore/XCoreISelLowering.h b/lib/Target/XCore/XCoreISelLowering.h index 6b467c3..6928138 100644 --- a/lib/Target/XCore/XCoreISelLowering.h +++ b/lib/Target/XCore/XCoreISelLowering.h @@ -54,6 +54,9 @@ namespace llvm { // Corresponds to LSUB instruction LSUB, + // Corresponds to LMUL instruction + LMUL, + // Corresponds to MACCU instruction MACCU, |