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4 Commits

Author SHA1 Message Date
Hal Finkel 01271c6022 Don't reserve R2 on Darwin/PPC 
Now that only the register-scavenger version of the CR spilling code remains,
we no longer need the Darwin R2 hack. Darwin can use R0 as a spare register in
any case where the System V ABI uses it (R0 is special architecturally, and so
is reserved under all common ABIs).

A few test cases needed to be updated to reflect the register-allocation changes.

llvm-svn: 176868
 2013-03-12 15:18:14 +00:00
Jakob Stoklund Olesen 1ec41e2bd9 These tests no longer require linear scan because reserved register coalescing is now universal. 
llvm-svn: 128936
 2011-04-05 21:40:41 +00:00
Jakob Stoklund Olesen 218661346a Fix PowerPC tests to be register allocator independent. 
llvm-svn: 128827
 2011-04-04 17:07:03 +00:00
Dale Johannesen 81bfca7bde Implement builtin_return_address(x) and builtin_frame_address(x) 
on PPC for x!=0.  7624113.

llvm-svn: 102972
 2010-05-03 22:59:34 +00:00