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Evan Cheng f259efde47 PHI elimination should not break back edge. It can cause some significant code placement issues. rdar://8263994 
good:
LBB0_2:
  mov     r2, r0
  . . .
  mov     r1, r2
  bne     LBB0_2

bad:
LBB0_2:
  mov     r2, r0
  . . .
@ BB#3:
  mov     r1, r2
  b       LBB0_2

llvm-svn: 111221
 		2010-08-17 01:20:36 +00:00
clang When the # of top-level declarations changes after reparsing a 2010-08-17 00:40:40 +00:00
compiler-rt add unit tests 2010-08-04 23:34:21 +00:00
libcxx [re.regiter] 2010-08-16 20:21:16 +00:00
lldb Check for errors in Resume before waiting for the resume to complete. 2010-08-17 00:35:35 +00:00
llvm PHI elimination should not break back edge. It can cause some significant code placement issues. rdar://8263994 2010-08-17 01:20:36 +00:00