| // { dg-do run } |
| // { dg-options "-O2" } |
| |
| #ifndef T |
| # if __SIZEOF_INT128__ && defined __SSE__ |
| # define T __int128 |
| # else |
| # define T long |
| # endif |
| #endif |
| #ifndef R |
| # ifdef __SSE__ |
| # define R "x" |
| # else |
| # define R "r" |
| # endif |
| #endif |
| |
| |
| typedef T A; // #define T to long or __int128 |
| struct B { char d; A c; } __attribute__((packed)); |
| struct B b[50]; // many elements to avoid loop unrolling |
| |
| int main () { |
| int i; |
| for (i = 0; i < sizeof(b) / sizeof(*b); i++) { |
| asm ("" : "+" R (b[i].c)); // #define R to "r" on ppc or "x" on x86_64 |
| } |
| } |
