[PATCH] D126885: [SLP]Cost for a constant buildvector.

[Alexey Bataev via Phabricator via llvm-commits]

ABataev added inline comments.


================
Comment at: llvm/test/Transforms/SLPVectorizer/X86/pr46983.ll:146
 ; AVX-NEXT:    [[TMP4:%.*]] = zext i32 [[TMP1:%.*]] to i64
-; AVX-NEXT:    [[TMP5:%.*]] = bitcast i64* [[TMP0:%.*]] to <4 x i64>*
-; AVX-NEXT:    [[TMP6:%.*]] = load <4 x i64>, <4 x i64>* [[TMP5]], align 8, !tbaa [[TBAA5:![0-9]+]]
----------------
xbolva00 wrote:
> Regression
> 
> https://github.com/llvm/llvm-project/issues/46327
llvm-mca reports throughputs:
For scalar code - 5.5
AVX vector - 8.0
AVX2 vector - 5.0
 
https://godbolt.org/z/rEc74dxza


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D126885/new/

https://reviews.llvm.org/D126885