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| author | Richard Osborne <richard@xmos.com> | 2010-03-09 16:13:57 +0000 |
|---|---|---|
| committer | Richard Osborne <richard@xmos.com> | 2010-03-09 16:13:57 +0000 |
| commit | 78717cd804b6d47d5e3d20cae7cb92f7467a9ec8 (patch) | |
| tree | 2682c6ddc80e537551734517dce58232bfae04f1 | |
| parent | 7b871b3464a5f84f8984786c665f70f5384fb0d6 (diff) | |
| download | external_llvm-78717cd804b6d47d5e3d20cae7cb92f7467a9ec8.zip external_llvm-78717cd804b6d47d5e3d20cae7cb92f7467a9ec8.tar.gz external_llvm-78717cd804b6d47d5e3d20cae7cb92f7467a9ec8.tar.bz2 | |
Canonicalize ladd constant to RHS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98058 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/XCore/XCoreISelLowering.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Target/XCore/XCoreISelLowering.cpp b/lib/Target/XCore/XCoreISelLowering.cpp index e59b18c..d8cbd03 100644 --- a/lib/Target/XCore/XCoreISelLowering.cpp +++ b/lib/Target/XCore/XCoreISelLowering.cpp @@ -1105,6 +1105,10 @@ SDValue XCoreTargetLowering::PerformDAGCombine(SDNode *N, ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1); EVT VT = N0.getValueType(); + // canonicalize constant to RHS + if (N0C && !N1C) + return DAG.getNode(XCoreISD::LADD, dl, DAG.getVTList(VT, VT), N1, N0, N2); + // fold (ladd 0, 0, x) -> 0, x & 1 if (N0C && N0C->isNullValue() && N1C && N1C->isNullValue()) { SDValue Carry = DAG.getConstant(0, VT); |