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authorMichael Liao <michael.liao@intel.com>2013-03-28 23:38:52 +0000
committerMichael Liao <michael.liao@intel.com>2013-03-28 23:38:52 +0000
commit258d9b7bc021ebc78f5a3aef3907e225e632edfa (patch)
treeadc888a2d7a587eabbc572cec42edc4a41d86a29 /test/MC
parent816f6d0ac76c0ffb2ea9ecb72349d5d7d0fa8d1a (diff)
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Enhance boolean simplification to handle 16-/64-bit RDRAND
- RDRAND always clears the destination value when a random value is not available (i.e. CF == 0). This value is truncated or zero-extended as the false boolean value to be returned. Boolean simplification needs to skip this 'zext' or 'trunc' node. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178312 91177308-0d34-0410-b5e6-96231b3b80d8
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