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Author SHA1 Message Date
Louis Gerbarg b4013235e3 Fix ARM bswap16.ll test on Windows 
Windows on ARM only supports thumb mode execution, so we have to
explicitly pick some non-Windows OS to test ARM mode codegen.

llvm-svn: 208638
 2014-05-12 22:13:07 +00:00
Louis Gerbarg efdcf23736 Add support bswap16 to/from memory compiling to rev16 on ARM/Thumb 
The current patterns for REV16 misses mostn __builtin_bswap16() due to
legalization promoting the operands to from load/stores toi32s and then
truncing/extending them. This patch adds new patterns that catch the resultant
DAGs and codegens them to rev16 instructions. Tests included.

rdar://15353652

llvm-svn: 208620
 2014-05-12 19:53:52 +00:00