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Adhemerval Zanella f384bc7166 [AArch64] Improve cost of vector division by constant 
With custom lowering for vector MULLH{S,U}, it is now profitable to
vectorize a divide by constant loop for the custom types (v16i8, v8i16,
and v4i32).  The cost if based on TargetLowering::Build{S,U}DIV which
uses a multiply by constant plus adjustment to express a divide by
constant.

Both {u,s}mull{2} are expressed as Instruction::Mul and shifts by
Instruction::AShr.

llvm-svn: 331873
 		2018-05-09 12:48:22 +00:00
clang Remove unused lit setting, see https://reviews.llvm.org/D46619 2018-05-09 12:38:51 +00:00
clang-tools-extra Partially revert r331456: [clang-tidy] Remove AnalyzeTemporaryDtors option. 2018-05-08 23:15:58 +00:00
compiler-rt [sanitizer] Remove unneeded blank lines 2018-05-09 00:44:26 +00:00
debuginfo-tests [Darwin] Specify DWARF 2/4 when running apple accelerator tests. 2018-02-26 20:56:45 +00:00
libclc remquo: Flush denormals if not supported 2018-05-03 05:44:28 +00:00
libcxx Revert "Emit an error when mixing <stdatomic.h> and <atomic>" 2018-05-08 22:50:35 +00:00
libcxxabi Fix test failure for missing _LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS 2018-05-03 12:44:27 +00:00
libunwind [cmake] Remove duplicate command line options from build 2018-04-05 20:27:50 +00:00
lld [wasm] Update test for variables->retainedNodes rename. 2018-05-09 10:09:23 +00:00
lldb [DWARF] Align non-accelerated function fullname searching with the apple-tables path 2018-05-09 08:21:25 +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 [AArch64] Improve cost of vector division by constant 2018-05-09 12:48:22 +00:00
openmp [OMPT] Fix thread_num for implicit_task_end callbacks in nested parallel regions 2018-05-07 12:42:21 +00:00
parallel-libs [Axccel] Remove -Wno-missing-braces in build 2016-12-19 21:34:07 +00:00
polly [test] Replace undef with true/false to make test case less fragile 2018-05-08 07:24:05 +00:00
README.md Add an svn project to contain the files that appear at the root of the 2017-10-19 21:09:49 +00:00

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.