[Bug middle-end/21137] Convert (a >> 2) & 1 != 0 into a & 4 != 0

[phython at gcc dot gnu dot org]

------- Additional Comments From phython at gcc dot gnu dot org  2005-07-11 03:56 -------
 This should actually be "Convert (a >> c1) & 2**c2" to a & (c2 << c1)".

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21137