llvm-project/clang
Hal Finkel 60ebf61274 When optimizing for size, enable loop rerolling by default
We have a loop-rerolling optimization which can be enabled by using
-freroll-loops. While sometimes loops are hand-unrolled for performance
reasons, when optimizing for size, we should always undo this manual
optimization to produce smaller code (our optimizer's unroller will still
unroll the rerolled loops if it thinks that is a good idea).

llvm-svn: 283685
2016-10-09 03:06:31 +00:00
..
INPUTS
bindings bindings: expose diagnostic formatting to Python 2016-08-11 05:31:07 +00:00
cmake [CMake] Adding toolchain targets to PGO and Apple CMake caches 2016-08-17 21:51:38 +00:00
docs Revert r283572 - [Driver] Make -print-libgcc-file-name print compiler-rt lib when used 2016-10-07 20:04:00 +00:00
examples Reapply r276973 "Adjust Registry interface to not require plugins to export a registry" 2016-08-05 11:01:08 +00:00
include [CUDA] Add #pragma clang force_cuda_host_device_{begin,end} pragmas. 2016-10-08 22:15:58 +00:00
lib When optimizing for size, enable loop rerolling by default 2016-10-09 03:06:31 +00:00
runtime [CMake] Properly connecting Compiler-RT check and test-depends 2016-09-01 18:28:49 +00:00
test When optimizing for size, enable loop rerolling by default 2016-10-09 03:06:31 +00:00
tools Turn cl::values() (for enum) from a vararg function to using C++ variadic template 2016-10-08 19:41:06 +00:00
unittests Make DeletedLines local variables in checkEmptyNamespace. 2016-10-05 15:49:01 +00:00
utils Turn cl::values() (for enum) from a vararg function to using C++ variadic template 2016-10-08 19:41:06 +00:00
www Switch to a different workaround for unimplementability of P0145R3 in MS ABIs. 2016-09-29 21:30:12 +00:00
.arcconfig Upgrade all the .arcconfigs to https. 2016-07-14 13:15:37 +00:00
.clang-format
.clang-tidy Try to use readability-identifier-naming check on Clang. 2016-04-13 08:59:49 +00:00
.gitignore
CMakeLists.txt [CMake] More robust handling for bootstrap variables 2016-09-22 00:18:12 +00:00
CODE_OWNERS.TXT
INSTALL.txt
LICENSE.TXT Update copyright year to 2016. 2016-03-30 22:38:44 +00:00
ModuleInfo.txt
NOTES.txt
README.txt

README.txt

//===----------------------------------------------------------------------===//
// C Language Family Front-end
//===----------------------------------------------------------------------===//

Welcome to Clang.  This is a compiler front-end for the C family of languages
(C, C++, Objective-C, and Objective-C++) which is built as part of the LLVM
compiler infrastructure project.

Unlike many other compiler frontends, Clang is useful for a number of things
beyond just compiling code: we intend for Clang to be host to a number of
different source-level tools.  One example of this is the Clang Static Analyzer.

If you're interested in more (including how to build Clang) it is best to read
the relevant web sites.  Here are some pointers:

Information on Clang:              http://clang.llvm.org/
Building and using Clang:          http://clang.llvm.org/get_started.html
Clang Static Analyzer:             http://clang-analyzer.llvm.org/
Information on the LLVM project:   http://llvm.org/

If you have questions or comments about Clang, a great place to discuss them is
on the Clang development mailing list:
  http://lists.llvm.org/mailman/listinfo/cfe-dev

If you find a bug in Clang, please file it in the LLVM bug tracker:
  http://llvm.org/bugs/