Hal Finkel 081e6fcd17 [LoopVectorizer] Count dependencies of consecutive pointers as uniforms ... For the purpose of calculating the cost of the loop at various vectorization factors, we need to count dependencies of consecutive pointers as uniforms (which means that the VF = 1 cost is used for all overall VF values). For example, the TSVC benchmark function s173 has: ... %3 = add nsw i64 %indvars.iv, 16000 %arrayidx8 = getelementptr inbounds %struct.GlobalData* @global_data, i64 0, i32 0, i64 %3 ... and we must realize that the add will be a scalar in order to correctly deduce it to be profitable to vectorize this on PowerPC with VSX enabled. In fact, all dependencies of a consecutive pointer must be a scalar (uniform), and so we simply need to add all consecutive pointers to the worklist that currently detects collects uniforms. Fixes PR19296. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205387 91177308-0d34-0410-b5e6-96231b3b80d8		2014-04-02 02:34:49 +00:00
..
Hello	[C++11] Add 'override' keyword to virtual methods that override their base class.	2014-03-05 09:10:37 +00:00
InstCombine	ARM64: initial backend import	2014-03-29 10:18:08 +00:00
Instrumentation	Prevent alias from pointing to weak aliases.	2014-03-27 15:26:56 +00:00
IPO	Move partial/runtime unrolling late in the pipeline	2014-03-31 23:23:51 +00:00
ObjCARC	Fix use_iterator crash in ObjCArc from r203364	2014-03-18 22:32:43 +00:00
Scalar	Add some additional fields to TTI::UnrollingPreferences	2014-04-01 18:50:30 +00:00
Utils	C++11: convert verbose loops to range-based loops.	2014-03-27 23:30:04 +00:00
Vectorize	[LoopVectorizer] Count dependencies of consecutive pointers as uniforms	2014-04-02 02:34:49 +00:00
CMakeLists.txt	Extracted ObjCARC.cpp into its own library libLLVMObjCARCOpts in preparation for refactoring the ARC Optimizer.	2013-01-28 01:35:51 +00:00
LLVMBuild.txt	Extracted ObjCARC.cpp into its own library libLLVMObjCARCOpts in preparation for refactoring the ARC Optimizer.	2013-01-28 01:35:51 +00:00
Makefile	Extracted ObjCARC.cpp into its own library libLLVMObjCARCOpts in preparation for refactoring the ARC Optimizer.	2013-01-28 01:35:51 +00:00