Ashutosh Nema 91d7ac06b6 [X86]: Changing cost for “TRUNCATE v16i32 to v16i8” in SSE4.1 mode. ...

Summary:
rL256194 transforms truncations between vectors of integers into PACKUS/PACKSS
operations during DAG combine. This generates better code for truncate, so cost
of truncate needs to be changed but looks like it got changed only in SSE2 table
Whereas this change is also applicable for SSE4.1, so the cost of truncate needs
to be changed for that as well. Cost of “TRUNCATE v16i32 to v16i8” & “TRUNCATE 
v16i16 to v16i8” should be same in SSE4.1 & SSE2 table. Removing their cost from
SSE4.1, so it will fall back to SSE2.

Reviewers: Simon Pilgrim


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@267123 91177308-0d34-0410-b5e6-96231b3b80d8

2016-04-22 08:34:05 +00:00

..

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

[ARM] Don't pessimize i32 vselect.

2015-11-17 17:25:15 +00:00

PowerPC

[TTI] Let the cost model estimate ctpop costs based on legality

2016-03-31 10:42:40 +00:00

X86

[X86]: Changing cost for “TRUNCATE v16i32 to v16i8” in SSE4.1 mode.

2016-04-22 08:34:05 +00:00

no_info.ll

Roll forward r243250

2015-07-26 19:10:03 +00:00