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5 Commits

Author SHA1 Message Date
Jim Grosbach c01104dfbf Thumb2 size reduction fix for tied operands of tMUL. 
The tied source operand of tMUL is the second source operand, not the
first like every other two-address thumb instruction. Special case it
in the size reduction pass to make sure we create the tMUL instruction
properly.

llvm-svn: 151315
 2012-02-24 00:33:36 +00:00
Evan Cheng f4807a19e8 Avoid partial CPSR dependency from loop backedges. rdar://10357570 
llvm-svn: 143145
 2011-10-27 21:21:05 +00:00
Jim Grosbach 8d77bb5f06 Use regex to remove false dependencies on register allocation. 
llvm-svn: 138137
 2011-08-19 23:10:31 +00:00
Jim Grosbach 066e9ec1e4 Update tests. 
llvm-svn: 138116
 2011-08-19 22:19:48 +00:00
Bob Wilson a2881ee8a4 Avoid some 's' 16-bit instruction which partially update CPSR 
(and add false dependency) when it isn't dependent on last CPSR defining
instruction. rdar://8928208

llvm-svn: 129773
 2011-04-19 18:11:49 +00:00