https://bugs.llvm.org/show_bug.cgi?id=43643
Bug ID: 43643
Summary: llvm.masked.gather not creating optimal code on
haswell for avx2
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Backend: X86
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected]
I have 2 separate IR implementations below. One using llvm.masked.gather and
the other using avx2.gather. The generic masked gather doesn't use the vector
gather. If the cpu is explicitly chosen as skylake(anything after haswwell),
vector gather is used.
https://godbolt.org/z/EFmBdx
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