Craig Topper 79dd1bf094 [X86] Teach constant hoisting that ANDs with 64-bit immediates in the range 0x80000000-0xffffffff can be handled cheaply and don't need to be hoisted.
Most importantly, this keeps constant hoisting from preventing instruction selections ability to turn an AND with 0xffffffff into a move into a 32-bit subregister.

llvm-svn: 249370
2015-10-06 02:50:24 +00:00
2015-09-29 06:39:09 +00:00
2015-10-06 02:13:54 +00:00
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