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2 Commits

Author SHA1 Message Date
Richard Sandiford
793ce99ea7 [SystemZ] Automatically detect zEC12 and z196 hosts 
As on other hosts, the CPU identification instruction is priveleged,
so we need to look through /proc/cpuinfo.  I copied the PowerPC way of
handling "generic".

Several tests were implicitly assuming z10 and so failed on z196.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193742 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-10-31 12:14:17 +00:00
Richard Sandiford
d1a4f579bf [SystemZ] Improve handling of SETCC 
We previously used the default expansion to SELECT_CC, which in turn would
expand to "LHI; BRC; LHI".  In most cases it's better to use an IPM-based
sequence instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192784 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-10-16 11:10:55 +00:00