[PATCH] D22064: [X86] Make some cast costs more precise

Michael Kuperstein via llvm-commits llvm-commits at lists.llvm.org
Wed Jul 6 13:20:04 PDT 2016

mkuper added inline comments.

Comment at: lib/Target/X86/X86TargetTransformInfo.cpp:540
@@ -539,3 +539,3 @@
     { ISD::UINT_TO_FP,  MVT::v8f32,  MVT::v8i64,  1 },    
     { ISD::UINT_TO_FP,  MVT::v8f64,  MVT::v8i64,  1 },
RKSimon wrote:
> Depending on how thorough we need to be shouldn't there be AVX512DQ+AVX512VL UINT_TO_FP cases for 128/256 bit vectors?
I'd rather leave that to the Intel folks, they can probably get more precise numbers for SKX.


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