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Author SHA1 Message Date
Erich Keane 2b9657b570 Remove Bitrig: Clang Changes 
Bitrig code has been merged back to OpenBSD, thus the OS has been abandoned.

Differential Revision: https://reviews.llvm.org/D35708

llvm-svn: 308797
 2017-07-21 22:46:31 +00:00
Rafael Espindola 3d4276e3cf Use atomic instructions on Bitrig armv6. Patch by Patrick Wildt. 
llvm-svn: 184113
 2013-06-17 20:00:15 +00:00
Ed Schouten 60afa2d923 Emit native implementations of atomic operations on FreeBSD/armv6. 
Just like on Linux, FreeBSD/armv6 assumes the system supports
ldrex/strex unconditionally. It is also used by the kernel. We can
therefore enable support for it, like we do on Linux.

While there, change one of the unit tests to explicitly test against
armv5 instead of armv7, as it actually tests whether libcalls are
emitted.

llvm-svn: 184040
 2013-06-15 09:40:14 +00:00
Rafael Espindola 92dbc3183f Use atomic instructions on linux thumb v7. 
This matches gcc's behaviour. The patch also explicitly parses the version so
that this keeps working when we add support for v8.

llvm-svn: 181750
 2013-05-14 00:44:24 +00:00
Rafael Espindola 101d5b956a Use atomic instructions on ARM linux. 
This is safe given how the pre-v6 atomic ops funcions in libgcc are
implemented.

This fixes pr15429.

llvm-svn: 181728
 2013-05-13 20:09:47 +00:00