Guozhi Wei acd7d48f71 [SimplifyCFG] Don't do if-conversion if there is a long dependence chain ... If after if-conversion, most of the instructions in this new BB construct a long and slow dependence chain, it may be slower than cmp/branch, even if the branch has a high miss rate, because the control dependence is transformed into data dependence, and control dependence can be speculated, and thus, the second part can execute in parallel with the first part on modern OOO processor. This patch checks for the long dependence chain, and give up if-conversion if find one. Differential Revision: https://reviews.llvm.org/D39352 llvm-svn: 321377		2017-12-22 18:54:04 +00:00
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Coroutines	[coro] Make Spill a proper struct instead of deriving from pair.	2017-10-31 19:22:55 +00:00
Hello
InstCombine	[InstCombine] Add debug location to new caller.	2017-12-20 17:16:59 +00:00
Instrumentation	[hwasan] Implement -fsanitize-recover=hwaddress.	2017-12-20 19:05:44 +00:00
IPO	Add hasProfileData() to check if a function has profile data. NFC.	2017-12-22 01:33:52 +00:00
ObjCARC	Remove redundant includes from lib/Transforms.	2017-12-13 21:31:01 +00:00
Scalar	Add hasProfileData() to check if a function has profile data. NFC.	2017-12-22 01:33:52 +00:00
Utils	[SimplifyCFG] Don't do if-conversion if there is a long dependence chain	2017-12-22 18:54:04 +00:00
Vectorize	Revert r320548:[SLP] Vectorize jumbled memory loads	2017-12-20 15:26:59 +00:00
CMakeLists.txt	[coroutines] Part 3 of N: Adding Boilerplate for Coroutine Passes	2016-07-28 21:04:31 +00:00
LLVMBuild.txt	[coroutines] Part 3 of N: Adding Boilerplate for Coroutine Passes	2016-07-28 21:04:31 +00:00