| commit | ee05cadf697e3ea89250ae5a6f0dd2f6d4b8adeb | [log] [tgz] |
|---|---|---|
| author | Roman Lebedev <lebedev.ri@gmail.com> | Mon Apr 23 20:38:42 2018 +0000 |
| committer | Roman Lebedev <lebedev.ri@gmail.com> | Mon Apr 23 20:38:42 2018 +0000 |
| tree | 84dd3da2b47162bc9084f63fafbc3ea0d4101d3f | |
| parent | b309972602790a0b3ca9ba60945bc9c2a85c4fe2 [diff] |
[X86][AArch64][NFC] Add tests for masked merge unfolding Summary: This is [[ https://bugs.llvm.org/show_bug.cgi?id=37104 | PR37104 ]]. [[ https://bugs.llvm.org/show_bug.cgi?id=6773 | PR6773 ]] will introduce an IR canonicalization that is likely bad for the end assembly. Previously, `andl`+`andn`/`andps`+`andnps` / `bic`/`bsl` would be generated. (see `@out`) Now, they would no longer be generated (see `@in`). I'm guessing `llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp` should be able to unfold this. Reviewers: spatel, craig.topper, RKSimon, javed.absar Reviewed By: spatel Subscribers: nemanjai, rengolin, javed.absar, kristof.beyls, llvm-commits Differential Revision: https://reviews.llvm.org/D45563 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@330645 91177308-0d34-0410-b5e6-96231b3b80d8