https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98872
Bug ID: 98872
Summary: ICE leads to SEGV on MMA test case
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: bergner at gcc dot gnu.org
Target Milestone: ---
bergner@pike:~/gcc/BUGS/MMA$ cat ice3.i
typedef unsigned char vec_t __attribute__((vector_size(16)));
int
foo (vec_t *rowA, vec_t *rowB, vec_t *dst)
{
__vector_quad acc0;
__builtin_mma_xvf32gerpp (&acc0, rowB[0], rowA[0]);
__builtin_mma_disassemble_acc (dst, &acc0);
}
bergner@pike:~/gcc/BUGS/MMA$
/home/bergner/gcc/build/gcc-fsf-mainline-mma-builtins-debug/gcc/xgcc
-B/home/bergner/gcc/build/gcc-fsf-mainline-mma-builtins-debug/gcc -S -O2
-mcpu=power10 ice3.i
during RTL pass: init-regs
ice3.i: In function ‘foo’:
ice3.i:8:1: internal compiler error: Segmentation fault
8 | }
| ^
0x113d6697 crash_signal
/home/bergner/gcc/gcc-fsf-mainline-mma-builtins/gcc/toplev.c:327
0x10b436c4 emit_move_insn(rtx_def*, rtx_def*)
/home/bergner/gcc/gcc-fsf-mainline-mma-builtins/gcc/expr.c:3821
0x1289319b initialize_uninitialized_regs
/home/bergner/gcc/gcc-fsf-mainline-mma-builtins/gcc/init-regs.c:108
0x12893443 execute
/home/bergner/gcc/gcc-fsf-mainline-mma-builtins/gcc/init-regs.c:156
