https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113876
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Summary|ICE: in |ICE: in |ix86_expand_epilogue, at |ix86_expand_epilogue, at |config/i386/i386.cc:10101 |config/i386/i386.cc:10101 |with -O |with -O |-mpreferred-stack-boundary= |-mpreferred-stack-boundary= |3 -finstrument-functions |3 -finstrument-functions |-mapxf -mcmodel=large and |-mapxf -mcmodel=large |_BitInt() | CC| |hjl.tools at gmail dot com, | |jakub at gcc dot gnu.org --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Doesn't need UB in the testcase to reproduce, /* { dg-options "-O -mpreferred-stack-boundary=3 -finstrument-functions -mapxf -mcmodel=large" } */ _BitInt(129) bar (void) { return 0; } ICEs too. And it doesn't have to do anything together with _Bitint either, /* { dg-options "-O -mpreferred-stack-boundary=3 -finstrument-functions -mapxf -mcmodel=large" } */ void bar (unsigned long *p) { p[0] = 0; p[1] = 0; p[2] = 0; } ICEs the same.