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Craig Topper f0b164415c [X86] Prefer blendi over movss/sd when avx512 is enabled unless optimizing for size. 
AVX512 doesn't have an immediate controlled blend instruction. But blend throughput is still better than movss/sd on SKX.

This commit changes AVX512 to use the AVX blend instructions instead of MOVSS/MOVSD. This constrains the register allocation since it won't be able to use XMM16-31, but hopefully the increased throughput and reduced port 5 pressure makes up for that.

llvm-svn: 337083
 		2018-07-14 02:05:08 +00:00
clang Revert "[ThinLTO] Ensure we always select the same function copy to import" 2018-07-14 01:50:14 +00:00
clang-tools-extra [Documentation] Add missing description for bugprone-exception-escape in Release Notes. 2018-07-13 22:53:05 +00:00
compiler-rt [UBSan] Followup for silence_unsigned_overflow flag to handle negate overflows. 2018-07-13 22:49:06 +00:00
debuginfo-tests [debuginfo-tests] Always use the system python to invoke llgdb.py. 2018-06-10 19:38:26 +00:00
libclc atom: Use volatile pointers for cl_khr_{global,local}_int32_{base,extended}_atomics 2018-06-21 19:27:39 +00:00
libcxx wrap _LIBCPP_HAS_NO_CXX14_CONSTEXPR in defined(...) 2018-07-13 17:31:36 +00:00
libcxxabi [CMake] Set per-runtime library directory suffix in runtimes build 2018-07-10 19:13:33 +00:00
libunwind [CMake] Set per-runtime library directory suffix in runtimes build 2018-07-10 19:13:33 +00:00
lld [ELF] - Simplify code. NFC. 2018-07-12 08:33:02 +00:00
lldb Rollback r337070. 2018-07-13 23:03:15 +00:00
llgo Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
llvm [X86] Prefer blendi over movss/sd when avx512 is enabled unless optimizing for size. 2018-07-14 02:05:08 +00:00
openmp [OpenMP][libomptarget] Fix data sharing and globalization infrastructure to work in SPMD mode 2018-07-13 16:14:22 +00:00
parallel-libs Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
polly [Polly][isl] Add neutrally-named accessors to isl list elements and sizes 2018-07-13 22:05:01 +00:00
README.md
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README.md

Low Level Virtual Machine (LLVM)

This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.