https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115823
--- Comment #9 from Stefan Schulze Frielinghaus <stefansf at gcc dot gnu.org> --- Argh I forgot to add the isnormal optab for this PR. Just attached it. With this I get for an unoptimized run gm2 testisnormal.mod -O0 -S -c -fdump-tree-optimized grep brasl testisnormal.s brasl %r14,test@PLT brasl %r14,printf@PLT brasl %r14,printf@PLT brasl %r14,exit@PLT brasl %r14,memcpy@PLT brasl %r14,memcpy@PLT brasl %r14,printf@PLT brasl %r14,__builtin_isnormal@PLT brasl %r14,printf@PLT brasl %r14,assert@PLT brasl %r14,m2pim_M2RTS_RegisterModule@PLT brasl %r14,m2pim_M2RTS_RequestDependant@PLT brasl %r14,m2pim_M2RTS_RequestDependant@PLT brasl %r14,m2pim_M2RTS_RequestDependant@PLT brasl %r14,m2pim_M2RTS_RequestDependant@PLT because the call side doesn't match a builtin call: <bb 2> : _T42_3 = isnormal (1.0e+0); result_4 = _T42_3; _T43_5 = "isnormal (1.0) = %d\n"; _8 = printf (_T43_5, result_4); _T44_9 = _8; if (result_4 != 1) goto <bb 4>; [INV] else goto <bb 3>; [INV]