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* Fix buildbot error.Wei Mi2016-09-031-62/+0
| | | | | | Add -mtriple=x86_64-unknown-linux-gnu for the test and move it to CodeGen/X86. llvm-svn: 280568
* Split the store of a wide value merged from an int-fp pair into multiple stores.Wei Mi2016-09-021-0/+62
For the store of a wide value merged from a pair of values, especially int-fp pair, sometimes it is more efficent to split it into separate narrow stores, which can remove the bitwise instructions or sink them to colder places. Now the feature is only enabled on x86 target, and only store of int-fp pair is splitted. It is possible that the application scope gets extended with perf evidence support in the future. Differential Revision: https://reviews.llvm.org/D22840 llvm-svn: 280505
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