Craig Topper 4f5992325a [X86] Add CMPXCHG8B feature flag. Set it for all CPUs except i386/i486 including 'generic'. Disable use of CMPXCHG8B when this flag isn't set. ... CMPXCHG8B was introduced on i586/pentium generation. If its not enabled, limit the atomic width to 32 bits so the AtomicExpandPass will expand to lib calls. Unclear if we should be using a different limit for other configs. The default is 1024 and experimentation shows that using an i256 atomic will cause a crash in SelectionDAG. Differential Revision: https://reviews.llvm.org/D59576 llvm-svn: 356631		2019-03-20 23:35:49 +00:00
..
AArch64	[AArch64][GlobalISel] Add an optimization to select vector DUP instructions.	2019-03-19 21:43:05 +00:00
AMDGPU	Allow machine dce to remove uses in the same instruction	2019-03-20 21:42:05 +00:00
ARC	[ARC] Add ARCOptAddrMode pass to generate postincrement loads/stores.	2019-03-20 20:06:21 +00:00
ARM	[ARM] Eliminate redundant "mov rN, sp" instructions in Thumb1.	2019-03-20 19:40:45 +00:00
AVR
BPF	[BPF] Add BTF Var and DataSec Support	2019-03-16 15:36:31 +00:00
Generic
Hexagon
Inputs
Lanai
Mips	RegAllocFast: Remove early selection loop, the spill calculation will report cost 0 anyway for free regs	2019-03-19 19:01:34 +00:00
MIR
MSP430
NVPTX
PowerPC	RegAllocFast: Remove early selection loop, the spill calculation will report cost 0 anyway for free regs	2019-03-19 19:01:34 +00:00
RISCV
SPARC
SystemZ	RegAllocFast: Remove early selection loop, the spill calculation will report cost 0 anyway for free regs	2019-03-19 19:01:34 +00:00
Thumb	[ARM] Eliminate redundant "mov rN, sp" instructions in Thumb1.	2019-03-20 19:40:45 +00:00
Thumb2	[ARM] Check that CPSR does not have other uses	2019-03-17 21:36:15 +00:00
WebAssembly	[WebAssembly] Target features section	2019-03-20 20:26:45 +00:00
WinCFGuard
WinEH
X86	[X86] Add CMPXCHG8B feature flag. Set it for all CPUs except i386/i486 including 'generic'. Disable use of CMPXCHG8B when this flag isn't set.	2019-03-20 23:35:49 +00:00
XCore