./:
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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@128840 138bc75d-0d04-0410-961f-82ee72b054a4