hanchenye-llvm-project

History

James Molloy 90d6101410 Use store size instead of alloc size when coercing. Previously, EnterStructPointerForCoercedAccess used Alloc size when determining how to convert. This was problematic, because there were situations were the alloc size was larger than the store size. For example, if the first element of a structure were i24 and the destination type were i32, the old code would generate a GEP and a load i24. The code should compare store sizes to ensure the whole object is loaded. I have attached a test case. This patch modifies the output of arm64-be-bitfield.c test case, but the new IR seems to be equivalent, and after -O3, the compiler generates identical ARM assembly. (asr x0, x0, #54) Patch by Thomas Jablin! llvm-svn: 216722		2014-08-29 10:17:52 +00:00
..
INPUTS	…
bindings	Expose the CUDA shared attribute to the C API.	2014-08-08 14:59:00 +00:00
docs	clang-format: New option SpacesInSquareBrackets.	2014-08-26 11:41:14 +00:00
examples	Go back to having a takeModule instead of a getModule.	2014-08-19 14:32:16 +00:00
include	unique_ptrify SourceManager::createFileID	2014-08-29 07:59:55 +00:00
lib	Use store size instead of alloc size when coercing.	2014-08-29 10:17:52 +00:00
runtime	Unify the name of compiler-rt builtins library on Linux.	2014-05-22 21:13:30 +00:00
test	Use store size instead of alloc size when coercing.	2014-08-29 10:17:52 +00:00
tools	[C++11] Support for capturing of variable length arrays in lambda expression.	2014-08-28 04:28:19 +00:00
unittests	unique_ptrify SourceManager::createFileID	2014-08-29 07:59:55 +00:00
utils	Simplify creation of a bunch of ArrayRefs by using None, makeArrayRef or just letting them be implicitly created.	2014-08-27 06:28:36 +00:00
www	[cxx_status] Minor wording tweaks.	2014-06-22 16:00:05 +00:00
.arcconfig	…
.clang-format	…
.gitignore	…
CMakeLists.txt	Make clang's rewrite engine a core feature	2014-07-16 16:48:33 +00:00
CODE_OWNERS.TXT	…
INSTALL.txt	…
LICENSE.TXT	…
Makefile	…
ModuleInfo.txt	…
NOTES.txt	Remove trailing spaces	2014-07-13 17:11:45 +00:00
README.txt	Remove whitespace from test commit.	2014-07-16 19:10:36 +00:00

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.cs.uiuc.edu/mailman/listinfo/cfe-dev

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