Evan Cheng
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ccb6976a69
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Do not isel load folding bt instructions for pentium m, core, core2, and AMD processors. These are significantly slower than a load followed by a bt of a register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61557 91177308-0d34-0410-b5e6-96231b3b80d8
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2009-01-02 05:35:45 +00:00 |
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Chris Lattner
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1323e8bf6a
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add PR #
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61427 91177308-0d34-0410-b5e6-96231b3b80d8
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2008-12-25 05:40:38 +00:00 |
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Chris Lattner
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e55484eb45
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Add a simple pattern for matching 'bt'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61426 91177308-0d34-0410-b5e6-96231b3b80d8
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2008-12-25 05:34:37 +00:00 |
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