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4 Commits

Author SHA1 Message Date
Justin Bogner f905256386 Revert "[AArch64] Unconditionally pass subtarget feature reserve-x18 on Darwin." 
This reverts r243310, which is redundant as of r253102.

Conflicts:
	lib/Driver/Tools.cpp

llvm-svn: 253104
 2015-11-13 23:07:31 +00:00
Akira Hatanaka 9250047032 [AArch64] Unconditionally pass subtarget feature reserve-x18 on Darwin. 
After r243308, the front-end is responsible for checking the target OS and
passing reserve-x18 if the target is Darwin.

llvm-svn: 243310
 2015-07-27 19:29:04 +00:00
Akira Hatanaka 2da6ec2ee6 Fix test case. 
This is a follow-up to r243185, which made changes to pass subtarget
feature "+reserve-x18" instead of backend option "-aarch64-reserve-x18".

llvm-svn: 243189
 2015-07-25 00:33:57 +00:00
Renato Golin b625f48862 Allows Clang to use LLVM's fixes-x18 option 
This patch allows clang to have llvm reserve the x18
platform register on AArch64. FreeBSD will use this in the kernel for
per-cpu data but has no need to reserve this register in userland so
will need this flag to reserve it.

This uses llvm r226664 to allow this register to be reserved.

Patch by Andrew Turner.

llvm-svn: 227062
 2015-01-25 23:17:48 +00:00