https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105485
Kewen Lin <linkw at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Ever confirmed|0 |1 Assignee|unassigned at gcc dot gnu.org |linkw at gcc dot gnu.org Last reconfirmed| |2022-05-06 Status|UNCONFIRMED |NEW CC| |linkw at gcc dot gnu.org --- Comment #1 from Kewen Lin <linkw at gcc dot gnu.org> --- Confirmed. AT15.0 (GCC11) emits error messages instead of ICE. err.c: In function ‘T b()’: err.c:7:29: error: unresolved overload for Altivec builtin ‘__vector(4) int __builtin_vec_vslv(__vector(4) int, __vector(4) int)’ 7 | return __builtin_vec_vslv (c, d); | ~~~~~~~~~~~~~~~~~~~^~~~~~ I thought it's due to new bif framework, but met the same ICE with one gcc right before new bif framework is enabled. The target hook gimple_fold_builtin expects normal BIF code instead of OVLD code, but for this case DECL_MD_FUNCTION_CODE returns OVLD code which is out of expectation. Doing a bisection.