re PR tree-optimization/48734 (ICE in eliminate_redundant_comparison, at tree-ssa-reassoc.c:1321)
PR tree-optimization/48734 * tree-ssa-reassoc.c (eliminate_redundant_comparison): Give up if return value from maybe_fold_*_comparsions isn't something the code is prepared to handle. * gcc.c-torture/compile/pr48734.c: New test. From-SVN: r172967
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