4 Commits

Author	SHA1	Message	Date
Evan Cheng	a5e1362f96	Revert r122955. It seems using movups to lower memcpy can cause massive regression (even on Nehalem) in edge cases. I also didn't see any real performance benefit. ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123015 91177308-0d34-0410-b5e6-96231b3b80d8	2011-01-07 19:35:30 +00:00
Evan Cheng	461f1fc359	Use movups to lower memcpy and memset even if it's not fast (like corei7). ... The theory is it's still faster than a pair of movq / a quad of movl. This will probably hurt older chips like P4 but should run faster on current and future Intel processors. rdar://8817010 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122955 91177308-0d34-0410-b5e6-96231b3b80d8	2011-01-06 07:58:36 +00:00
Eric Christopher	d8c0536651	Rewrite the darwin tlv support to use a chain and return to copying ... the output to the correct register. Fixes a hidden problem uncovered by the last patch where we'd try to DAG combine our MVT::Other node oddly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121358 91177308-0d34-0410-b5e6-96231b3b80d8	2010-12-09 06:25:53 +00:00
Eric Christopher	7b5d456d5c	Move this test to tlv* to make it easier to notice versus linux tls ... support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121316 91177308-0d34-0410-b5e6-96231b3b80d8	2010-12-08 23:33:23 +00:00