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./: PR tree-optimization/33565 * tree-ssa-loop-ch.c (copy_loop_headers): Set TREE_NO_WARNING on assignments of comparisons. * tree-ssa-sccvn.c (simplify_binary_expression): Add stmt parameter. Change caller. Defer overflow warnings around call to fold_binary. * fold-const.c (fold_undefer_overflow_warnings): Don't warn if TREE_NO_WARNING is set on the statement. * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_vars): Don't test TREE_NO_WARNING when calling fold_undefer_overflow_warnings. * tree-cfg.c (fold_cond_expr_cond): Likewise. testsuite/: PR tree-optimization/33565 * gcc.dg/Wstrict-overflow-20.c: New test. From-SVN: r128840
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