Akira Hatanaka 0d4c9ea6e0 [AArch64] Define subtarget feature "reserve-x18", which is used to decide
whether register x18 should be reserved.

This change is needed because we cannot use a backend option to set
cl::opt "aarch64-reserve-x18" when doing LTO.

Out-of-tree projects currently using cl::opt option "-aarch64-reserve-x18"
to reserve x18 should make changes to add subtarget feature "reserve-x18"
to the IR.

rdar://problem/21529937

Differential Revision: http://reviews.llvm.org/D11463

llvm-svn: 243186
2015-07-25 00:18:31 +00:00
2015-07-24 18:07:14 +00:00
2015-07-25 00:09:22 +00:00
2015-07-24 23:30:31 +00:00
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