llvm/lib at 33bf38ad881fa3d403cc81209d0ae796f94f125e - llvm

RPCS3/llvm

mirror of https://github.com/RPCS3/llvm.git synced 2025-02-08 19:46:39 +00:00

History

Evan Cheng 33bf38ad88 Fix a bug in RegsForValue::getCopyToRegs() that causes cyclical scheduling units. If it's creating multiple CopyToReg nodes that are "flagged" together, it should not create a TokenFactor for it's chain outputs:

c1, f1 = CopyToReg                                                                                                                                                                                             
c2, f2 = CopyToReg                                                                                                                                                                                             
c3     = TokenFactor c1, c2                                                                                                                                                                                    
 ...                                                                                                                                                                                                                      
       = user c3, ..., f2

Now that the two CopyToReg's and the user are "flagged" together. They effectively forms a single scheduling unit. The TokenFactor is now both an operand and a successor of the Flagged nodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50376 91177308-0d34-0410-b5e6-96231b3b80d8

2008-04-28 22:07:13 +00:00

Analysis

Fix the way AliasSet::print prints "may alias".

2008-04-21 19:48:48 +00:00