Chris Lattner
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818ff34bc0
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implement a simple instcombine xform that has been in the
readme forever.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94318 91177308-0d34-0410-b5e6-96231b3b80d8
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2010-01-23 18:49:30 +00:00 |
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Chris Lattner
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033574074d
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optimize comparisons against cttz/ctlz/ctpop, patch by Alastair Lynn!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92745 91177308-0d34-0410-b5e6-96231b3b80d8
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2010-01-05 18:09:56 +00:00 |
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Chris Lattner
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16507fe9fd
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optimize cttz and ctlz when we can prove something about the
leading/trailing bits. Patch by Alastair Lynn!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92706 91177308-0d34-0410-b5e6-96231b3b80d8
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2010-01-05 07:23:56 +00:00 |
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Chris Lattner
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d27f911b23
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add a few trivial instcombines for llvm.powi.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92383 91177308-0d34-0410-b5e6-96231b3b80d8
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2010-01-01 01:52:15 +00:00 |
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Chris Lattner
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cd188e9665
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add testcases for the foo_with_overflow op xforms added recently and
fix bugs exposed by the tests. Testcases from Alastair Lynn!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90056 91177308-0d34-0410-b5e6-96231b3b80d8
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2009-11-29 02:57:29 +00:00 |
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Chris Lattner
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7e606e2e98
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if a 'with overflow' intrinsic just has the normal result used, simplify
it to a normal binop. Patch by Alastair Lynn, testcase by me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86524 91177308-0d34-0410-b5e6-96231b3b80d8
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2009-11-09 07:07:56 +00:00 |
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