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Yonghong Song 42389377d8 bpf: New target attribute "alu32" for 32-bit subregister support 
This new attribute aims to control the enablement of 32-bit subregister
support on eBPF backend.

Name the interface as "alu32" is because we in particular want to enable
the generation of BPF_ALU32 instructions by enable subregister support.

This attribute could be used in the following format with llc:

  llc -mtriple=bpf -mattr=[+|-]alu32

It is disabled at default.

Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Reviewed-by: Yonghong Song <yhs@fb.com>
llvm-svn: 325982
 		2018-02-23 23:49:22 +00:00
clang [CFG] Try to narrow down MSVC compiler crash via binary search. 2018-02-23 23:38:41 +00:00
clang-tools-extra [clangd] BindWithForward -> Bind. NFC 2018-02-23 07:54:17 +00:00
compiler-rt [libFuzzer] Include TEMP_MAX_LEN in Fuzzer::PrintStats. 2018-02-22 19:00:17 +00:00
debuginfo-tests [Darwin] Add a test to make sure clang emits __apple accelerator tables. 2018-02-23 18:04:55 +00:00
libclc utils: Adapt to llvm r325155 2018-02-23 07:37:03 +00:00
libcxx Allow passing additional compiler/linker flags for the tests 2018-02-23 15:19:48 +00:00
libcxxabi [demangler] Support for exception specifications on function types. 2018-02-14 01:08:20 +00:00
libunwind [cmake] [libunwind] LLVM_FOUND isn't always set, so just test if 2018-01-27 19:31:44 +00:00
lld [ELF] Fix IsPreemptible comment and typo. NFC 2018-02-23 21:57:49 +00:00
lldb Fix a compiler warning in ModuleCacheTest.cpp, NFC 2018-02-23 23:18:27 +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 bpf: New target attribute "alu32" for 32-bit subregister support 2018-02-23 23:49:22 +00:00
openmp [OMPT] Fix parallel_data in implicit barrier-end 2018-02-23 16:46:25 +00:00
parallel-libs [Axccel] Remove -Wno-missing-braces in build 2016-12-19 21:34:07 +00:00
polly Use isl::manage_copy to simplify calls to isl::manage(isl_.._copy()) 2018-02-20 07:26:58 +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.