https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113622
--- Comment #22 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
On x86_64:
$ cat t.c
typedef float __attribute__ ((vector_size (16))) vec;
typedef int __attribute__ ((vector_size (16))) ivec;
register vec a asm("xmm0"), b asm("xmm1");
register ivec c asm("xmm2");
void
test (void)
{
for (int i = 0; i < 4; i++)
c[i] = a[i] < b[i] ? -1 : 1;
}
$ gcc/cc1 -msse2 t.c -O2 -fno-vect-cost-model -nostdinc -ffixed-xmm{0,1,2}
t.c: In function 'test':
t.c:7:1: internal compiler error: in expand_expr_addr_expr_1, at expr.cc:9139
7 | test (void)
| ^~~~
0x10e6d6e expand_expr_addr_expr_1
../../gcc/gcc/expr.cc:9139
0x10e76e2 expand_expr_addr_expr
../../gcc/gcc/expr.cc:9252
0x10f73a7 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
../../gcc/gcc/expr.cc:12585
0x10e7dc8 expand_expr_real(tree_node*, rtx_def*, machine_mode, expand_modifier,
rtx_def**, bool)
../../gcc/gcc/expr.cc:9440
0xef7346 expand_expr(tree_node*, rtx_def*, machine_mode, expand_modifier)
../../gcc/gcc/expr.h:316
0x10e91fa expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
../../gcc/gcc/expr.cc:9762
0x10ef77d expand_expr_real_gassign(gassign*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
../../gcc/gcc/expr.cc:11096
0xf2db31 expand_gimple_stmt_1
../../gcc/gcc/cfgexpand.cc:4010
0xf2ddd4 expand_gimple_stmt
../../gcc/gcc/cfgexpand.cc:4071
0xf36844 expand_gimple_basic_block
../../gcc/gcc/cfgexpand.cc:6127
0xf38ff8 execute
../../gcc/gcc/cfgexpand.cc:6866
Should I open a new ticket or add back 14 Regression to the subject?
