Jiangning Liu d5db8765d6 Implement global merge optimization for global variables.
This commit implements two command line switches -global-merge-on-external
and -global-merge-aligned, and both of them are false by default, so this
optimization is disabled by default for all targets.

For ARM64, some back-end behaviors need to be tuned to get this optimization
further enabled.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208934 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-15 23:45:42 +00:00
..
2014-04-03 17:35:22 +00:00
2014-01-29 11:50:56 +00:00
2014-01-11 21:06:00 +00:00
2014-05-12 22:13:07 +00:00
2014-02-16 07:31:05 +00:00
2014-02-16 07:31:05 +00:00
2014-01-11 21:06:00 +00:00
2014-01-29 11:50:56 +00:00
2014-01-29 11:50:56 +00:00
2014-01-29 11:50:56 +00:00
2014-02-16 13:28:39 +00:00
2014-04-25 17:51:25 +00:00
2014-04-03 17:35:22 +00:00
2014-04-03 17:35:22 +00:00
2014-04-03 17:35:22 +00:00
2014-04-03 17:35:22 +00:00
2014-04-03 17:35:22 +00:00
2014-04-23 01:09:29 +00:00
2014-01-24 17:20:08 +00:00
2013-09-04 21:23:23 +00:00
2014-03-25 03:39:39 +00:00