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
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AArch64	Make DAGCombiner work on vector bitshifts with constant splat vectors.	2014-03-17 18:58:01 +00:00
ARM	Remove the linker_private and linker_private_weak linkages.	2014-03-13 23:18:37 +00:00
CPP	Begin adding docs and IR-level support for the inalloca attribute	2013-12-19 02:14:12 +00:00
Generic	CommandLine: Exit successfully for -version and -help	2014-02-28 19:08:01 +00:00
Hexagon	Fix broken CHECK lines	2014-02-16 07:31:05 +00:00
Inputs	Debug Info: update testing cases to specify the debug info version number.	2013-11-22 21:49:45 +00:00
Mips	Add support for scalarizing/splitting vector bswap.	2014-03-18 17:49:12 +00:00
MSP430	Fix known typos	2014-01-24 17:20:08 +00:00
NVPTX	Remove the linker_private and linker_private_weak linkages.	2014-03-13 23:18:37 +00:00
PowerPC	Fix PR19144: Incorrect offset generated for int-to-fp conversion at -O0.	2014-03-18 14:32:50 +00:00
R600	CodeGen/R600/v_cndmask.ll: Relax an expression to unbreak msvcrt.	2014-03-18 06:17:22 +00:00
SPARC	Remove the linker_private and linker_private_weak linkages.	2014-03-13 23:18:37 +00:00
SystemZ	IR: add a second ordering operand to cmpxhg for failure	2014-03-11 10:48:52 +00:00
Thumb	Add triples to try to fix the windows bots.	2014-02-13 16:49:47 +00:00
Thumb2	ARMv8 IfConversion must skip narrow instructions that a) define CPSR and b) wouldn't affect CPSR in an IT block	2014-02-26 11:27:28 +00:00
X86	X86 memcpy lowering: use "rep movs" even when esi is used as base pointer	2014-03-18 20:04:34 +00:00
XCore	[XCore] Add support for the "m" inline asm constraint.	2014-03-06 16:37:48 +00:00