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2 Commits

Author SHA1 Message Date
Quentin Colombet
9549547f2b [ARM] Mark VMOV with immediate: isAsCheapAsMove. 
VMOVs are not strictly speaking cheap, but they are as expensive as a vector
copy (VORR), so we should prefer rematerialization over splitting when it
applies.

rdar://problem/23754176

llvm-svn: 257545
 2016-01-13 00:02:40 +00:00
Tim Northover
91bcd8d2eb ARM: add cyclone CPU with ZeroCycleZeroing feature. 
The Cyclone CPU is similar to swift for most LLVM purposes, but does have two
preferred instructions for zeroing a VFP register. This teaches LLVM about
them.

llvm-svn: 205309
 2014-04-01 13:22:02 +00:00