Jakob Stoklund Olesen 442e38c4de Mostly rewrite RegAllocFast. ... Sorry for the big change. The path leading up to this patch had some TableGen changes that I didn't want to commit before I knew they were useful. They weren't, and this version does not need them. The fast register allocator now does no liveness calculations. Instead it relies on kill flags provided by isel. (Currently those kill flags are also ignored due to isel bugs). The allocation algorithm is supposed to work with any subset of valid kill flags. More kill flags simply means fewer spills inserted. Registers are allocated from a working set that contains no aliases. That means most allocations can be done directly without expensive alias checks. When the working set runs out of registers we do the full alias check to find new free registers. llvm-svn: 103488		2010-05-11 18:54:45 +00:00
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Alpha
ARM	Select @llvm.trap to the special B with 1111 condition (i.e. trap) instruction.	2010-05-11 07:26:32 +00:00
Blackfin
CBackend
CellSPU	Make SPU backend not assert on jump tables.	2010-05-11 11:00:02 +00:00
CPP
Generic	SDDbgValues are apparently not being legalized. Fix a symptom of the problem,	2010-05-07 22:19:08 +00:00
MBlaze
Mips
MSP430	Insert ANY_EXTEND node instead of invalid truncate during DAG Combining (X & 1),	2010-05-01 12:52:34 +00:00
PIC16
PowerPC	Implement builtin_return_address(x) and builtin_frame_address(x)	2010-05-03 22:59:34 +00:00
SPARC
SystemZ
Thumb	Select @llvm.trap to the special B with 1111 condition (i.e. trap) instruction.	2010-05-11 07:26:32 +00:00
Thumb2	Clean up the conditional for handling of sign_extend_inreg based on	2010-05-07 18:34:55 +00:00
X86	Mostly rewrite RegAllocFast.	2010-05-11 18:54:45 +00:00
XCore