re PR target/67089 (Integer overflow checks not optimized on x86/x86_64)
PR target/67089 * tree-ssa-math-opts.c (uaddsub_overflow_check_p, match_uaddsub_overflow): New functions. (pass_optimize_widening_mul::execute): Call match_uaddsub_overflow. * gcc.dg/pr67089-1.c: New test. * gcc.dg/pr67089-2.c: New test. * gcc.dg/pr67089-3.c: New test. * gcc.dg/pr67089-4.c: New test. * gcc.dg/pr67089-5.c: New test. * gcc.dg/pr67089-6.c: New test. * gcc.dg/pr67089-7.c: New test. From-SVN: r230856
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gcc/testsuite/gcc.dg/pr67089-1.c
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