As noticed in D90554 , the AVX2 costs for 256-bit vectors did not include FMAXNUM entries, so we fell back to AVX1 which assumes those ops will be split into 128-bit halves.
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| llvm/lib/Target/X86/X86TargetTransformInfo.cpp | ||
|---|---|---|
| 2531 | Nit: the comments should be MAXSS + CMPUNORDSS. | |
Nit: the comments should be MAXSS + CMPUNORDSS.
The same below.