commit 4d53e7798c94143a22a9871261b8443592b929d5
author Hal Finkel <hfinkel@anl.gov> Tue Mar 12 15:18:14 2013 +0000
committer Hal Finkel <hfinkel@anl.gov> Tue Mar 12 15:18:14 2013 +0000
tree 430ff7149d501e532a89cfbbbd3d1b2648b6f821
parent 7285e8d98c9a44b7efe792462188cfe713dd9641

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176868 91177308-0d34-0410-b5e6-96231b3b80d8