| /* { dg-do compile } */ |
| /* { dg-options "-O0 -dA -gbtf -mco-re" } */ |
| |
| struct S { |
| int a; |
| union { |
| int _unused; |
| int b; |
| char c; |
| } u[4]; |
| }; |
| |
| struct S foo; |
| |
| #define _(x) (__builtin_preserve_access_index (x)) |
| |
| void func (void) |
| { |
| char *x = __builtin_preserve_access_index (&foo.u[3].c); |
| |
| *x = 's'; |
| } |
| |
| /* { dg-final { scan-assembler-times "\[\t \]0x4000002\[\t \]+\[^\n\]*btt_info" 1 } } */ |
| /* { dg-final { scan-assembler-times "ascii \"1:3:2.0\"\[\t \]+\[^\n\]*btf_aux_string" 1 } } */ |
| /* { dg-final { scan-assembler-times "bpfcr_type" 1 } } */ |
