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2 Commits

Author SHA1 Message Date
Jakob Stoklund Olesen
f27731bf40 Prepare remaining tests for -join-physreg going away. 
llvm-svn: 130893
 2011-05-04 23:54:59 +00:00
Evan Cheng
4ef6d8fa15 The check for coalescing a virtual register to a physical register, e.g. 
cl = EXTRACT_SUBREG reg1024, 1, is overly conservative. It should check
for overlaps of vr's live interval with the super registers of the
physical register (ECX in this case) and let JoinIntervals() handle checking
the coalescing feasibility against the physical register (cl in this case).

llvm-svn: 98251
 2010-03-11 08:20:21 +00:00