Allow 256-bit shuffles to be split if a 128-bit lane contains elements from a single...
authorCraig Topper <craig.topper@gmail.com>
Fri, 6 Apr 2012 07:45:23 +0000 (07:45 +0000)
committerCraig Topper <craig.topper@gmail.com>
Fri, 6 Apr 2012 07:45:23 +0000 (07:45 +0000)
commit9a2b6e1d7b26069fca0cac7766fbe1b29d710f23
tree33b56aeef410706b5a52d52e5e387de015a2f294
parente45cddfa08992ccac052b344f52c92d66e4797ea
Allow 256-bit shuffles to be split if a 128-bit lane contains elements from a single source. This is a rewrite of the 256-bit shuffle splitting code based on similar code from legalize types. Fixes PR12413.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154166 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/X86/X86ISelLowering.cpp
test/CodeGen/X86/avx-vpermil.ll