5 Commits

Author	SHA1	Message	Date
Roman Lebedev	914a3d1cf2	[InstSimplify] Handle more 'A </>/>=/<= B &&/|| (A - B) !=/== 0' patterns (PR43251) ... https://rise4fun.com/Alive/sl9s https://rise4fun.com/Alive/2plN https://bugs.llvm.org/show_bug.cgi?id=43251 llvm-svn: 372928	2019-09-25 22:59:41 +00:00
Roman Lebedev	26606bec9a	[NFC][InstSimplify] More exaustive test coverage for 'A </>/>=/<= B &&/|| (A - B) !=/== 0' pattern (PR43251) ... llvm-svn: 372927	2019-09-25 22:59:24 +00:00
Roman Lebedev	9c5a4a4527	[InstSimplify] simplifyUnsignedRangeCheck(): handle few tautological cases (PR43251) ... Summary: This is split off from D67356, since these cases produce a constant, no real need to keep them in instcombine. Alive proofs: https://rise4fun.com/Alive/u7Fk https://rise4fun.com/Alive/4lV https://bugs.llvm.org/show_bug.cgi?id=43251 Reviewers: spatel, nikic, xbolva00 Reviewed By: spatel Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D67498 llvm-svn: 371921	2019-09-14 13:47:27 +00:00
Roman Lebedev	4cb267f9f5	[NFC][InstSimplify] Add some more tests for D67498/D67502 ... llvm-svn: 371877	2019-09-13 17:58:24 +00:00
Roman Lebedev	80a8a85758	[InstCombine][InstSimplify] Move constant-folding tests in result-of-usub-is-non-zero-and-no-overflow.ll ... llvm-svn: 371737	2019-09-12 14:12:31 +00:00