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As can be seen in the testcase, roundeven with inf or nan arguments ICE because of those asserts where nothing prevents from is_halfway_below being called with those arguments. The following patch fixes that by just returning false for rvc_inf/rvc_nan like it returns for rvc_zero, so that we handle roundeven with all those values as round. Inf/NaN are not halfway in between two integers... 2020-02-12 Jakub Jelinek <jakub@redhat.com> PR middle-end/93663 * real.c (is_even): Make static. Function comment fix. (is_halfway_below): Make static, don't assert R is not inf/nan, instead return false for those. Small formatting fixes. * gcc.dg/torture/builtin-round-roundeven.c (main): Add tests for DBL_MAX, inf, their negations and nan.
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