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In the commentary for D11660, I wasn't sure if it was alright to create new integer machine instructions without also creating the implicit EFLAGS operand. From what I can see, the implicit operand is always created by the MachineInstrBuilder based on the instruction type, so we don't have to do that explicitly. However, in reviewing the debug output, I noticed that the operand was not marked as 'dead'. The machine combiner should do that to preserve future optimization opportunities that may be checking for that dead EFLAGS operand themselves. Differential Revision: http://reviews.llvm.org/D11696 llvm-svn: 243990 |
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