[llvm-bugs] [Bug 33690] New: [X86][AVX512] Add support for ISD::ROTL/ISD::ROTR
via llvm-bugs
llvm-bugs at lists.llvm.org
Wed Jul 5 02:48:29 PDT 2017
https://bugs.llvm.org/show_bug.cgi?id=33690
Bug ID: 33690
Summary: [X86][AVX512] Add support for ISD::ROTL/ISD::ROTR
Product: libraries
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: Backend: X86
Assignee: unassignedbugs at nondot.org
Reporter: llvm-dev at redking.me.uk
CC: elena.demikhovsky at intel.com, llvm-bugs at lists.llvm.org,
zvi.rackover at intel.com
AVX512 has vector rotate instructions:
vector rotate by scalar immediate: VPROLD/VPRORD and VPROLQ/VPRORQ
vector rotate by vector values: VPROLVD/VPRORVD and VPROLVQ/VPRORVQ
but we can't lower to them (see D12833)
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