Hi, I need to check for a non-0 return value in dg-compile testcases in gcc.
A simple testcase from richi shows the problem i'm facing: http://gcc.gnu.org/viewcvs/trunk/gcc/testsuite/gcc.dg/pr29254.c?view=markup&pathrev=117577 In this testcase, he checks for /* { dg-warning "warnings being treated as errors" "" {target "*-*-*"} 0 } */ which is not really accurate, since it doesn't check that the compiler did exit with !0 but only if that warn_once string was emitted. In gfortran, i currently do not emit such a introductory message at all, and even if i would, checking for the message instead of checking the actual return-code of the compilation would be incorrect. A simple testcase that i want to expect to fail to compile would be e.g.: $ cat c.c /* { dg-do compile } */ /* { dg-options "-W -Werror" } */ /* { dg-return != 0 } */ // Perhaps also check for ld, as failure int main(void) {0;} /* { dg-warning "no effect" } */ What do people think about a way to properly check that dg-compile did indeed return non-0? PS: Also see http://gcc.gnu.org/ml/gcc-patches/2006-09/msg00551.html for the proposed gfortran.dg testcase that comes along a simple fix that is blocked by this alleged missing feature in dejagnu. TIA, Bernhard
