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[X86] Add scalar shl+lshr -> shift+mask tests (PR40758)
authorSimon Pilgrim <llvm-dev@redking.me.uk>
Sat, 11 May 2019 19:16:46 +0000 (19:16 +0000)
committerSimon Pilgrim <llvm-dev@redking.me.uk>
Sat, 11 May 2019 19:16:46 +0000 (19:16 +0000)
commitf26529e8bb1335018a269da6bf0f80a9469a39fc
treea1b603709a8ae614093353dc1d68d64c26598e83tree | snapshot
parentd6e2c2034c2bd21db812bbf73157fd0bb7ac14a8commit | diff
[X86] Add scalar shl+lshr -> shift+mask tests (PR40758)

As discussed on D61068, many x86 targets can perform 2 immediate shifts quicker than a shift + mask

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@360530 91177308-0d34-0410-b5e6-96231b3b80d8
test/CodeGen/X86/shift-mask.ll [new file with mode: 0644] blob
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