4 Commits

Author	SHA1	Message	Date
Clement Courbet	bc0c4459c9	[MergeICmps] Fix build of rL312315 on clang-with-thin-lto-windows: ... MergeICmps.cpp(68,15): error: chosen constructor is explicit in copy-initialization return {}; APInt.h(339,12): note: explicit constructor declared here explicit APInt() : BitWidth(1) { U.VAL = 0; } ^ MergeICmps.cpp(56,9): note: in implicit initialization of field 'Offset' with omitted initializer APInt Offset; ^ llvm-svn: 312326	2017-09-01 11:51:23 +00:00
Clement Courbet	65130e2d8d	Reland rL312315: [MergeICmps] MergeICmps is a new optimization pass that turns chains of integer ... Add missing header. This reverts commit 86dd6335cf7607af22f383a9a8e072ba929848cf. llvm-svn: 312322	2017-09-01 10:56:34 +00:00
Clement Courbet	316212575b	Revert "[MergeICmps] MergeICmps is a new optimization pass that turns chains of integer" ... Break build This reverts commit d07ab866f7f88f81e49046d691a80dcd32d7198b. llvm-svn: 312317	2017-09-01 09:43:08 +00:00
Clement Courbet	9473c01e96	[MergeICmps] MergeICmps is a new optimization pass that turns chains of integer ... comparisons into memcmp. Thanks to recent improvements in the LLVM codegen, the memcmp is typically inlined as a chain of efficient hardware comparisons. This typically benefits C++ member or nonmember operator==(). For now this is disabled by default until: - https://bugs.llvm.org/show_bug.cgi?id=33329 is complete - Benchmarks show that this is always useful. Differential Revision: https://reviews.llvm.org/D33987 llvm-svn: 312315	2017-09-01 09:07:05 +00:00