| commit | d595b3ce74653f4319197d1d7f474a6f798f765a | [log] [tgz] |
|---|---|---|
| author | Roman Lebedev <lebedev.ri@gmail.com> | Thu Jul 12 17:00:11 2018 +0000 |
| committer | Roman Lebedev <lebedev.ri@gmail.com> | Thu Jul 12 17:00:11 2018 +0000 |
| tree | 5e248cec353fe269ed11ab86e46f93a5e1d0d04f | |
| parent | e427001e40beae2f2450db97e7e9921c48dbc182 [diff] |
[NFC][X86][AArch64] Add tests for the 'check for [no] signed truncation' pattern Summary: [[ https://bugs.llvm.org/show_bug.cgi?id=38149 | PR38149 ]] As discussed in https://reviews.llvm.org/D49179#1158957 and later, the IR can be improved: https://rise4fun.com/Alive/gBf ^ that pattern will be produced by Implicit Integer Truncation sanitizer, https://reviews.llvm.org/D48958 https://bugs.llvm.org/show_bug.cgi?id=21530 in signed case, therefore it is probably a good idea to improve it. But as it looks from these tests, i think we want to revert at least some cases in DAGCombine. Reviewers: spatel, craig.topper, RKSimon, javed.absar Reviewed By: spatel Subscribers: kristof.beyls, llvm-commits Differential Revision: https://reviews.llvm.org/D49247 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@336917 91177308-0d34-0410-b5e6-96231b3b80d8