David Majnemer 7c9d3f854d [GVNHoist] Change the key for VNtoInsns to a pair ... While debugging GVNHoist, I found it confusing that the entries in a VNtoInsns were not always value numbers. They _usually_ were except for StoreInst in which case they were a hash of two different value numbers. This leads to two observations: - It is more difficult to debug things when the semantic contents of VNtoInsns changes over time. - Using a single value number is not much cheaper, the value of VNtoInsns is a SmallVector. - It is not immediately clear what the algorithm would do if there were hash collisions in the StoreInst case. Using a DenseMap of std::pair sidesteps all of this. N.B. The changes in the test were due their sensitivity to the iteration order of VNtoInsns which has changed. llvm-svn: 275761		2016-07-18 06:11:37 +00:00
..
Hello	Add auto-exporting of symbols from tools so that plugins work on Windows	2016-05-26 11:16:43 +00:00
InstCombine	[InstCombine] allow X + signbit --> X ^ signbit for vector splats	2016-07-16 18:29:26 +00:00
Instrumentation	Address review comments.	2016-07-17 14:46:58 +00:00
IPO	Revert r275678, "Revert "Revert r275027 - Let FuncAttrs infer the 'returned' argument attribute""	2016-07-18 03:23:25 +00:00
ObjCARC	Apply clang-tidy's modernize-loop-convert to most of lib/Transforms.	2016-06-26 12:28:59 +00:00
Scalar	[GVNHoist] Change the key for VNtoInsns to a pair	2016-07-18 06:11:37 +00:00
Utils	Make processInstruction from LCSSA.cpp externally available.	2016-07-15 21:08:41 +00:00
Vectorize	[LV] Swap A and B in interleaved access analysis (NFC)	2016-07-15 15:22:43 +00:00
CMakeLists.txt
LLVMBuild.txt