Alexey Bataev 62af7252f1 [SLP] Fixed cost model for horizontal reduction. ... Currently when cost of scalar operations is evaluated the vector type is used for scalar operations. Patch fixes this issue and fixes evaluation of the vector operations cost. Several test showed that vector cost model is too optimistic. It allowed vectorization of 8 or less add/fadd operations, though scalar code is faster. Actually, only for 16 or more operations vector code provides better performance. Differential Revision: https://reviews.llvm.org/D26277 llvm-svn: 288398		2016-12-01 18:42:42 +00:00
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AArch64	[AArch64] Reduce vector insert/extract cost for Kryo	2016-02-18 18:35:45 +00:00
AMDGPU	AMDGPU: Cost model for basic integer operations	2016-03-25 01:16:40 +00:00
ARM	[TTI] The cost model should not assume vector casts get completely scalarized	2016-07-06 17:30:56 +00:00
PowerPC	[TTI] The cost model should not assume vector casts get completely scalarized	2016-07-06 17:30:56 +00:00
X86	[SLP] Fixed cost model for horizontal reduction.	2016-12-01 18:42:42 +00:00
no_info.ll	Roll forward r243250	2015-07-26 19:10:03 +00:00