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Hans Wennborg
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------------------------------------------------------------------------ r226664 | tnorthover | 2015-01-21 07:43:31 -0800 (Wed, 21 Jan 2015) | 7 lines AArch64: add backend option to reserve x18 (platform register) AAPCS64 says that it's up to the platform to specify whether x18 is reserved, and a first step on that way is to add a flag controlling it. From: Andrew Turner <andrew@fubar.geek.nz> ------------------------------------------------------------------------ git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@227150 91177308-0d34-0410-b5e6-96231b3b80d8