Matthew Simpson f64cb1c3a7 [LV] Avoid emitting trivially dead instructions ... Some instructions from the original loop, when vectorized, can become trivially dead. This happens because of the way we structure the new loop. For example, we create new induction variables and induction variable "steps" in the new loop. Thus, when we go to vectorize the original induction variable update, it may no longer be needed due to the instructions we've already created. This patch prevents us from creating these redundant instructions. This reduces code size before simplification and allows greater flexibility in code generation since we have fewer unnecessary instruction uses. Differential Revision: https://reviews.llvm.org/D25631 llvm-svn: 284631		2016-10-19 19:22:02 +00:00
..
BBVectorize.cpp	IR: Remove Value::intersectOptionalDataWith, replace all calls with calls to Instruction::andIRFlags.	2016-09-07 23:39:04 +00:00
CMakeLists.txt	Add LoadStoreVectorizer pass	2016-06-30 23:11:38 +00:00
LLVMBuild.txt
LoadStoreVectorizer.cpp	Add new target hooks for LoadStoreVectorizer	2016-10-03 10:31:34 +00:00
LoopVectorize.cpp	[LV] Avoid emitting trivially dead instructions	2016-10-19 19:22:02 +00:00
SLPVectorizer.cpp	[SLPVectorizer] Fix for PR25748: reduction vectorization after loop	2016-10-07 09:39:22 +00:00
Vectorize.cpp	Add LoadStoreVectorizer pass	2016-06-30 23:11:38 +00:00