https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109145
--- Comment #5 from seurer at gcc dot gnu.org --- The excess error is: /home/seurer/gcc/git/gcc-test/gcc/testsuite/gcc.dg/tree-ssa/forwprop-39.c: In function 'foo': /home/seurer/gcc/git/gcc-test/gcc/testsuite/gcc.dg/tree-ssa/forwprop-39.c:11:13: warning: implicit declaration of function 'CMPLXF' [-Wimplicit-function-declaration]