Alexey Bataev 7135b5ad24 [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	[SLP] Avoid signed integer overflow	2016-08-23 20:48:50 +00:00
AMDGPU
ARM
PowerPC	[SLP] Pass in correct alignment when query memory access cost	2016-05-31 20:41:19 +00:00
X86	[SLP] Fixed cost model for horizontal reduction.	2016-12-01 18:42:42 +00:00
XCore