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Chad Rosier a588421976 When performing a truncating store, it's possible to rearrange the data in-register, such that we can use a single vector store rather then a series of scalar stores. For func_4_8 the generated code vldr d16, LCPI0_0 vmov d17, r0, r1 vadd.i16 d16, d17, d16 vmov.u16 r0, d16[3] strb r0, [r2, #3] vmov.u16 r0, d16[2] strb r0, [r2, #2] vmov.u16 r0, d16[1] strb r0, [r2, #1] vmov.u16 r0, d16[0] strb r0, [r2] bx lr becomes vldr d16, LCPI0_0 vmov d17, r0, r1 vadd.i16 d16, d17, d16 vuzp.8 d16, d17 vst1.32 {d16[0]}, [r2, :32] bx lr I'm not fond of how this combine pessimizes 2012-03-13-DAGCombineBug.ll, but I couldn't think of a way to judiciously apply this combine. This ldrh r0, [r0, #4] strh r0, [r1] becomes vldr d16, [r0] vmov.u16 r0, d16[2] vmov.32 d16[0], r0 vuzp.16 d16, d17 vst1.32 {d16[0]}, [r1, :32] PR11158 rdar://10703339 llvm-svn: 154340		2012-04-09 20:32:02 +00:00
autoconf	Fix a problem in the target detection for Debian GNU/HURD	2012-04-05 19:34:15 +00:00
bindings	[python] Add negative MemoryBuffer testcase	2012-03-22 11:23:52 +00:00
cmake	Add InitializeNativeTargetDisassembler function.	2012-03-26 21:56:56 +00:00
docs	Clarify that fpaccuracy metadata is giving the compiler permission to use a	2012-04-09 14:08:00 +00:00
examples	Switch to a more idiomatic way of silencing unused variable warnings in	2012-02-20 00:02:49 +00:00
include	Typo.	2012-04-09 17:54:34 +00:00
lib	When performing a truncating store, it's possible to rearrange the data	2012-04-09 20:32:02 +00:00
projects	Fix a problem in the target detection for Debian GNU/HURD	2012-04-05 19:34:15 +00:00
runtime	Use the correct filename for the error message.	2012-03-28 02:39:06 +00:00
test	When performing a truncating store, it's possible to rearrange the data	2012-04-09 20:32:02 +00:00
tools	s/lto_codegen_whole_program_optimization/lto_codegen_set_whole_program_optimization/	2012-04-09 08:32:21 +00:00
unittests	Add YAML parser to Support.	2012-04-03 23:09:22 +00:00
utils	Do not include multiple -arch options in CPPFLAGS.	2012-04-05 00:35:55 +00:00
.gitignore
CMakeLists.txt	Add YAML parser to Support.	2012-04-03 23:09:22 +00:00
configure	Fix a problem in the target detection for Debian GNU/HURD	2012-04-05 19:34:15 +00:00
CREDITS.TXT	sort by alpha.	2012-03-12 21:12:59 +00:00
LICENSE.TXT	Add YAML parser to Support.	2012-04-03 23:09:22 +00:00
llvm.spec.in	Tidy up. s/Low Level Virtual Machine/LLVM/.	2012-01-25 22:00:23 +00:00
LLVMBuild.txt	LLVMBuild: Introduce a common section which currently has a list of the	2011-12-12 22:45:54 +00:00
Makefile	Makefile: add missing files to FilesToConfig	2012-01-17 02:56:49 +00:00
Makefile.common
Makefile.config.in	Add profiling support for Intel Parallel Amplifier XE (VTune) for JITted code in LLVM.	2012-03-13 08:33:15 +00:00
Makefile.rules	Use a posix compliant regexp in export file construction.	2012-03-12 20:58:14 +00:00
README.txt	test commit	2012-03-20 13:12:38 +00:00

README.txt

Low Level Virtual Machine (LLVM)
================================

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

LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.

Please see the HTML documentation provided in docs/index.html for further
assistance with LLVM.

If you're writing a package for LLVM, see docs/Packaging.html for our
suggestions.