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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
clang Reland r312224 - [ItaniumCXXABI] Always use linkonce_odr linkage for RTTI data on MinGW 2017-09-01 06:41:55 +00:00
clang-tools-extra [cppcoreguidelines] Don't rely on SmallPtrSet iteration order. 2017-08-30 20:18:40 +00:00
compiler-rt Revert "[ubsan] Make check-ubsan depend on check-ubsan-minimal." 2017-08-31 23:34:01 +00:00
debuginfo-tests Fix debuginfo-tests with GDB on Linux 2017-08-31 18:16:55 +00:00
libclc amdgcn: rewrite barrier() using fence and clang __builtin_amdgcn_s_barrier 2017-08-16 17:09:00 +00:00
libcxx [libcxx] [www] Change an absolute link to cxx1z_status.html to be relative. 2017-08-31 17:59:51 +00:00
libcxxabi Revert "[libcxxabi] When built with ASan, __cxa_throw calls __asan_handle_no_return" 2017-08-16 22:05:54 +00:00
libunwind Revert r312240 2017-08-31 15:51:23 +00:00
lld [ELF] Generate symbol assignments for predefined symbols 2017-09-01 02:23:31 +00:00
lldb lldb-mi: -var-update can hang when traversing complex types with pointers 2017-08-31 19:22:33 +00:00
llgo irgen: Create functions instead of global variables for builtin hash and equal algorithms. 2017-06-04 22:11:28 +00:00
llvm [MergeICmps] MergeICmps is a new optimization pass that turns chains of integer 2017-09-01 09:07:05 +00:00
openmp Use va_copy instead of __va_copy to fix building libomp against musl libc 2017-08-19 23:53:36 +00:00
parallel-libs [Axccel] Remove -Wno-missing-braces in build 2016-12-19 21:34:07 +00:00
polly Run GVN during the cleanup 2017-09-01 06:52:28 +00:00