Simon Pilgrim a5b4b79bb8 [TTI] Reduction costs only need to include a single extract element cost ...

We were adding the entire scalarization extraction cost for reductions, which returns the total cost of extracting every element of a vector type.

For reductions we don't need to do this - we just need to extract the 0'th element after the reduction pattern has completed.

Fixes PR37731

Differential Revision: https://reviews.llvm.org/D54585

llvm-svn: 346970

2018-11-15 17:42:53 +00:00

..

bswap.ll

[AArch64][CostModel] Add coverage for bswap intrinsics.

2017-01-05 16:55:32 +00:00

div_cte.ll

[AArch64] Improve cost of vector division by constant

2018-05-09 12:48:22 +00:00

div.ll

[AArch64] Adjust the cost of integer vector division

2018-03-07 22:35:32 +00:00

free-widening-casts.ll

[AArch64] Consider widening instructions in cost calculations

2017-05-09 20:18:12 +00:00

gep.ll

Revert r314923: "Recommit : Use the basic cost if a GEP is not used as addressing mode"

2017-10-13 14:04:21 +00:00

kryo.ll

[AArch64] Reduce vector insert/extract cost for Kryo

2016-02-18 18:35:45 +00:00

lit.local.cfg

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select.ll

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shuffle-broadcast.ll

Add BROADCAST shuffle cost tests.

2018-10-23 13:14:54 +00:00

shuffle-select.ll

[CostModel][AArch64] Add some initial costs for SK_Select and SK_PermuteSingleSrc

2018-06-22 09:45:31 +00:00

shuffle-transpose.ll

[TTI, AArch64] Add transpose shuffle kind

2018-04-26 13:48:33 +00:00

store.ll

[AArch64] Add custom lowering for v4i8 trunc store

2018-06-27 13:58:46 +00:00

vector-reduce.ll

[TTI] Reduction costs only need to include a single extract element cost

2018-11-15 17:42:53 +00:00