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6 Commits

Author SHA1 Message Date
Evan Cheng 54d678fff4 Fix TLS lowering bug. The CopyFromReg must be glued to the TLSCALL. rdar://10291355 
llvm-svn: 142550
 2011-10-19 22:22:54 +00:00
Evan Cheng 13bcc6c1c7 Add Mode64Bit feature and sink it down to MC layer. 
llvm-svn: 134641
 2011-07-07 21:06:52 +00:00
Evan Cheng a048c83fe4 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. 
llvm-svn: 123015
 2011-01-07 19:35:30 +00:00
Evan Cheng 7998b1d6fe 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

llvm-svn: 122955
 2011-01-06 07:58:36 +00:00
Eric Christopher a8aaaee379 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.

llvm-svn: 121358
 2010-12-09 06:25:53 +00:00
Eric Christopher 6a21b40bd6 Move this test to tlv* to make it easier to notice versus linux tls 
support.

llvm-svn: 121316
 2010-12-08 23:33:23 +00:00