0ba92ff15e3fd15b9f97983e6ec7e2da00eebd52 - platform_external_llvm

commit	0ba92ff15e3fd15b9f97983e6ec7e2da00eebd52	[log] [tgz]
author	Daniel Sanders <daniel_l_sanders@apple.com>	Thu Nov 30 20:11:42 2017 +0000
committer	Daniel Sanders <daniel_l_sanders@apple.com>	Thu Nov 30 20:11:42 2017 +0000
tree	35dc09eb8bc7515da10020bf18e207f6ba255568
parent	ff7abc1a3fa7c6710581e26be298498f372d8deb [diff]

[aarch64][globalisel] Legalize G_ATOMIC_CMPXCHG_WITH_SUCCESS and G_ATOMICRMW_*

G_ATOMICRMW_* is generally legal on AArch64. The exception is G_ATOMICRMW_NAND.

G_ATOMIC_CMPXCHG_WITH_SUCCESS needs to be lowered to G_ATOMIC_CMPXCHG with an
external comparison.

Note that IRTranslator doesn't generate these instructions yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319466 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h[diff]
include/llvm/CodeGen/TargetOpcodes.def[diff]
include/llvm/Target/GenericOpcodes.td[diff]
lib/CodeGen/GlobalISel/LegalizerHelper.cpp[diff]
lib/CodeGen/GlobalISel/MachineIRBuilder.cpp[diff]
lib/Target/AArch64/AArch64LegalizerInfo.cpp[diff]
test/CodeGen/AArch64/GlobalISel/legalize-cmpxchg-with-success.mir[Added - diff]

7 files changed

tree: 35dc09eb8bc7515da10020bf18e207f6ba255568