Jakob Stoklund Olesen f07fc974d3 Reject really weird coalescer case when trying to merge identical subregisters ... of different register classes. e.g. %reg1048:3<def> = EXTRACT_SUBREG %RAX<kill>, 3 Where %reg1048 is a GR32 register. This is not impossible to handle, but it is pretty hard and very rare. This should unbreak the dragonegg builder. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102672 91177308-0d34-0410-b5e6-96231b3b80d8		2010-04-29 23:47:46 +00:00
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Alpha
ARM	Update ARM DAGtoDAG for matching UBFX instruction for unsigned bitfield	2010-04-22 23:24:18 +00:00
Blackfin
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MBlaze
Mips
MSP430
PIC16
PowerPC	on darwin empty functions need to codegen into something of non-zero length,	2010-04-26 23:37:21 +00:00
SPARC
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Thumb2	Handle register-to-register copies within the tGPR class.	2010-04-26 23:20:08 +00:00
X86	Reject really weird coalescer case when trying to merge identical subregisters	2010-04-29 23:47:46 +00:00
XCore