[Bug tree-optimization/31136] [4.2 Regression] FRE ignores bit-field truncation (C and C++ front-end don't produce bit-field truncation

[mmitchel at gcc dot gnu dot org]

------- Comment #12 from mmitchel at gcc dot gnu dot org  2007-03-26 05:43 -------
I agree with Joseph that STRIP_SIGN_NOPS should not be removing changes in
precision that may change the value and that, indeed, mode is probably being
used as an inaccurate proxy for precision.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31136