Chris Lattner 8406c5197b Add a warning to catch a bug recently caught by code review, like this: ...

t2.c:2:12: warning: use of logical && with constant operand; switch to bitwise &
      or remove constant [-Wlogical-bitwise-confusion]
  return x && 4;
           ^  ~

wording improvement suggestions are welcome.

llvm-svn: 108260

2010-07-13 19:41:32 +00:00

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