Richard Osborne
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79a73fbeb3
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Add dag combine to simplify lmul(x, 0, a, b)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98258 91177308-0d34-0410-b5e6-96231b3b80d8
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2010-03-11 16:26:35 +00:00 |
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Richard Osborne
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2dacd1e987
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Fold add(add(mul(x,y),a),b) -> lmul(x,y,a,b) if the intermediate
results are unused elsewhere.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98157 91177308-0d34-0410-b5e6-96231b3b80d8
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2010-03-10 16:19:31 +00:00 |
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Richard Osborne
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a2cc0613d0
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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
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2010-03-10 13:27:10 +00:00 |
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Richard Osborne
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a7e78402b8
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Custom lower (S|U)MUL_LOHI -> MACC(S|U)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98152 91177308-0d34-0410-b5e6-96231b3b80d8
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2010-03-10 13:20:07 +00:00 |
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