maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
318,798 Commits 23 Branches 0 Tags 2.2 GiB
C++ 39.1%
LLVM 35.7%
C 12.1%
Assembly 8.9%
Python 1.1%
Other 2.7%
Go to file
Sam Parker 757ac02dc8 [ARM] Implement TTI::isHardwareLoopProfitable 
Implement the backend target hook to drive the HardwareLoops pass.
The low-overhead branch extension for Arm M-class cores is flexible
enough that we don't have to ensure correctness at this point, except
checking that the loop counter variable can be stored in LR - a
32-bit register. For it to be profitable, we want to avoid loops that
contain function calls, or any other instruction that alters the PC.
    
This implementation uses TargetLoweringInfo, to query type and
operation actions, looks at intrinsic calls and also performs some
manual checks for remainder/division and FP operations.
    
I think this should be a good base to start and extra details can be
filled out later.

Differential Revision: https://reviews.llvm.org/D62907

llvm-svn: 363149
 		2019-06-12 12:00:42 +00:00
clang [NFC] Test commit 2019-06-12 07:50:48 +00:00
clang-tools-extra [clangd] Fix typo in GUARDED_BY() 2019-06-12 11:01:19 +00:00
compiler-rt Revert r362676 "[Profile]: Add runtime interface to specify file handle for profile data." 2019-06-12 08:44:32 +00:00
debuginfo-tests Add cdb test for global constants 2019-06-06 20:23:05 +00:00
libclc travis: Add LLVM-8 build 2019-03-27 21:28:31 +00:00
libcxx Apply [[nodebug]] to typedefs throughout the STL. 2019-06-12 02:03:31 +00:00
libcxxabi [demangle] Vendor extended types shouldn't be considered substitution candidates 2019-06-10 21:02:39 +00:00
libunwind [Docs] Modernize references to macOS 2019-05-30 16:46:22 +00:00
lld Share /machine: handling code with llvm-cvtres too 2019-06-12 11:32:43 +00:00
lldb Recognise debug_types.dwo as a debug info section 2019-06-12 11:42:42 +00:00
llgo IR: Support parsing numeric block ids, and emit them in textual output. 2019-03-22 18:27:13 +00:00
llvm [ARM] Implement TTI::isHardwareLoopProfitable 2019-06-12 12:00:42 +00:00
openmp Added propagation of not big initial stack size of master thread to workers. 2019-06-05 16:14:47 +00:00
parallel-libs Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
polly [ScopBuilder] Move hoistInvariantLoads to ScopBuilder. NFC. 2019-06-12 04:23:05 +00:00
pstl [pstl] The optimized parallel versions of sort, stable_sort algorithms, TBB parallel backend. 2019-06-06 07:34:46 +00:00
.arcconfig Update monorepo .arcconfig with new project callsign. 2019-01-31 14:34:59 +00:00
.clang-format Add .clang-tidy and .clang-format files to the toplevel of the 2019-01-29 16:43:16 +00:00
.clang-tidy Disable tidy checks with too many hits 2019-02-01 11:20:13 +00:00
.gitignore Add a reduced copy of the llvm .gitignore 2019-04-09 00:52:49 +00:00
README.md
…

README.md

The LLVM Compiler Infrastructure

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