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Re: [Bug tree-optimization/18892] New: missed SRA of a block copy

pinskia at gcc dot gnu dot org wrote: 
The following function:
int f(int a)
{
  int i = a & -129;
  return i == 144;
}
Should be compiled to:
int f1(int a)
{
  return (a & -129) == 144; // aka return 0;
}

Yes this shows up in real code (gcc), found while testing out my tree combiner.

Hmm? What does SRA have to do with anything here?


Diego.

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