Hans Wennborg 523f800e90 X86 memcpy lowering: use "rep movs" even when esi is used as base pointer ... For functions where esi is used as base pointer, we would previously fall back from lowering memcpy with "rep movs" because that clobbers esi. With this patch, we just store esi in another physical register, and restore it afterwards. This adds a little bit of register preassure, but the more efficient memcpy should be worth it. Differential Revision: http://llvm-reviews.chandlerc.com/D2968 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204174 91177308-0d34-0410-b5e6-96231b3b80d8		2014-03-18 20:04:34 +00:00
..
Analysis	Add stride normalization to SCEV Normalize/Denormalize transformation.	2014-03-18 17:34:03 +00:00
AsmParser	Remove the linker_private and linker_private_weak linkages.	2014-03-13 23:18:37 +00:00
Bitcode	Support: Make error_category's constructor public	2014-03-15 04:05:59 +00:00
CodeGen	Add support for scalarizing/splitting vector bswap.	2014-03-18 17:49:12 +00:00
DebugInfo	Make some assertions on constant expressions static.	2014-03-15 18:47:07 +00:00
ExecutionEngine	[C++11] Introduce SectionRef::relocations() to use range-based loops	2014-03-14 14:22:49 +00:00
IR	[C++11] Change DebugInfoFinder to use range-based loops	2014-03-18 09:41:07 +00:00
IRReader	Replace OwningPtr<T> with std::unique_ptr<T>.	2014-03-06 05:51:42 +00:00
LineEditor	[CMake] Use LINK_LIBS instead of target_link_libraries().	2014-02-26 06:41:29 +00:00
Linker	[Layering] Sink Linker.h into a Linker subdirectory to make it	2014-03-06 03:42:23 +00:00
LTO	Remove the linker_private and linker_private_weak linkages.	2014-03-13 23:18:37 +00:00
MC	Revert r203962 and two revisions depending on it: r204028 and r204059.	2014-03-18 10:36:11 +00:00
Object	[C++11] Change the interface of getCOFF{Section,Relocation,Symbol} to make it work with range-based for loops.	2014-03-18 06:53:02 +00:00
Option	Avoid buffer copies when a Twine already is a StringRef.	2013-12-03 18:18:28 +00:00
Support	Support: add support to identify WinCOFF/ARM objects	2014-03-13 07:02:35 +00:00
TableGen	Replace OwningPtr<T> with std::unique_ptr<T>.	2014-03-06 05:51:42 +00:00
Target	X86 memcpy lowering: use "rep movs" even when esi is used as base pointer	2014-03-18 20:04:34 +00:00
Transforms	[msan] Origin tracking with history.	2014-03-18 13:30:56 +00:00
CMakeLists.txt	Back out Profile library and dependent commits	2014-03-12 22:00:57 +00:00
LLVMBuild.txt	Back out Profile library and dependent commits	2014-03-12 22:00:57 +00:00
Makefile	Back out Profile library and dependent commits	2014-03-12 22:00:57 +00:00