[PATCH] D132216: [CostModel][X86] RFC - Support cost kind specific look up tables

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added inline comments.


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Comment at: llvm/lib/Target/X86/X86TargetTransformInfo.cpp:2727
     // slm pblendvb/blendvpd/blendvps throughput is 4
-    { ISD::SELECT,  MVT::v2f64,   4 }, // vblendvpd
-    { ISD::SELECT,  MVT::v4f32,   4 }, // vblendvps
-    { ISD::SELECT,  MVT::v2i64,   4 }, // pblendvb
-    { ISD::SELECT,  MVT::v8i32,   4 }, // pblendvb
-    { ISD::SELECT,  MVT::v8i16,   4 }, // pblendvb
-    { ISD::SELECT,  MVT::v16i8,   4 }, // pblendvb
+    { ISD::SELECT,  MVT::v2f64,   { 4, 4, 1, 3 } }, // vblendvpd
+    { ISD::SELECT,  MVT::v4f32,   { 4, 4, 1, 3 } }, // vblendvps
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pengfei wrote:
> Do we have a place to introduce the meaning of each elements, where they are used and how to get the correct value?
> Besides, the previous comments are just for throughput? How can we explain the other values?
I'll tweak the description at the top of the file


Repository:
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  https://reviews.llvm.org/D132216/new/

https://reviews.llvm.org/D132216