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4 Commits

Author SHA1 Message Date
Haicheng Wu 9780df5385 [BranchFolding] Change a test case of r278575. 
Rename the operands to make the test less brittle.

llvm-svn: 278841
 2016-08-16 20:06:25 +00:00
Haicheng Wu 7c4535d1e7 Reapply [BranchFolding] Restrict tail merging loop blocks after MBP 
Fixed a bug in the test case.

To fix PR28104, this patch restricts tail merging to blocks that belong to the
same loop after MBP.

llvm-svn: 278575
 2016-08-12 23:13:38 +00:00
Haicheng Wu d9cbb1608f Revert "[BranchFolding] Restrict tail merging loop blocks after MBP" 
This reverts commit r278463 because it hits the bot.

llvm-svn: 278484
 2016-08-12 08:40:24 +00:00
Haicheng Wu ea02372059 [BranchFolding] Restrict tail merging loop blocks after MBP 
To fix PR28014, this patch restricts tail merging to blocks that belong to the
same loop after MBP.

Differential Revision: https://reviews.llvm.org/D23191

llvm-svn: 278463
 2016-08-12 03:30:23 +00:00