e6a2101d1d25ddac207faccdc474f66e758b9924 - platform_external_llvm

commit	e6a2101d1d25ddac207faccdc474f66e758b9924	[log] [tgz]
author	Ulrich Weigand <ulrich.weigand@de.ibm.com>	Fri Aug 04 18:57:58 2017 +0000
committer	Ulrich Weigand <ulrich.weigand@de.ibm.com>	Fri Aug 04 18:57:58 2017 +0000
tree	6b51392463b88d2233c4fcdb397ca57990fac6d9
parent	48ff7cfe277caa0ecd38a32e10a5a02fe88dfea9 [diff]

[SystemZ] Add support for 128-bit atomic load/store/cmpxchg

This adds support for the main 128-bit atomic operations,
using the SystemZ instructions LPQ, STPQ, and CDSG.

Generating these instructions is a bit more complex than usual
since the i128 type is not legal for the back-end.  Therefore,
we have to hook the LowerOperationWrapper and ReplaceNodeResults
TargetLowering callbacks.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@310094 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/SystemZ/SystemZISelLowering.cpp[diff]
lib/Target/SystemZ/SystemZISelLowering.h[diff]
lib/Target/SystemZ/SystemZInstrInfo.td[diff]
lib/Target/SystemZ/SystemZOperators.td[diff]
test/CodeGen/SystemZ/atomic-load-05.ll[Added - diff]
test/CodeGen/SystemZ/atomic-store-05.ll[Added - diff]
test/CodeGen/SystemZ/cmpxchg-06.ll[Added - diff]

7 files changed

tree: 6b51392463b88d2233c4fcdb397ca57990fac6d9