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authorSanjay Patel <spatel@rotateright.com>2016-05-07 15:03:40 +0000
committerSanjay Patel <spatel@rotateright.com>2016-05-07 15:03:40 +0000
commitc2751e7050b20be713d08b6e8001d57bb828c7ee (patch)
tree63634df4fea583e74b876eadf82048eaf4bc460a /lldb/packages/Python/lldbsuite/test/lang/cpp/namespace/TestNamespaceLookup.py
parent65f088f5280dd1b41224263304fb824d981b722a (diff)
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[x86, BMI] add TLI hook for 'andn' and use it to simplify comparisons
For the sake of minimalism, this patch is x86 only, but I think that at least PPC, ARM, AArch64, and Sparc probably want to do this too. We might want to generalize the hook and pattern recognition for a target like PPC that has a full assortment of negated logic ops (orc, nand). Note that http://reviews.llvm.org/D18842 will cause this transform to trigger more often. For reference, this relates to: https://llvm.org/bugs/show_bug.cgi?id=27105 https://llvm.org/bugs/show_bug.cgi?id=27202 https://llvm.org/bugs/show_bug.cgi?id=27203 https://llvm.org/bugs/show_bug.cgi?id=27328 Differential Revision: http://reviews.llvm.org/D19087 llvm-svn: 268858
Diffstat (limited to 'lldb/packages/Python/lldbsuite/test/lang/cpp/namespace/TestNamespaceLookup.py')
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