| /* PR optimization/8634 */ |
| /* Contributed by Glen Nakamura <glen at imodulo dot com> */ |
| |
| extern void abort (void); |
| |
| struct foo { |
| char a, b, c, d, e, f, g, h, i, j; |
| }; |
| |
| int test1 () |
| { |
| const char X[8] = { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H' }; |
| char buffer[8]; |
| __builtin_memcpy (buffer, X, 8); |
| if (buffer[0] != 'A' || buffer[1] != 'B' |
| || buffer[2] != 'C' || buffer[3] != 'D' |
| || buffer[4] != 'E' || buffer[5] != 'F' |
| || buffer[6] != 'G' || buffer[7] != 'H') |
| abort (); |
| return 0; |
| } |
| |
| int test2 () |
| { |
| const char X[10] = { 'A', 'B', 'C', 'D', 'E' }; |
| char buffer[10]; |
| __builtin_memcpy (buffer, X, 10); |
| if (buffer[0] != 'A' || buffer[1] != 'B' |
| || buffer[2] != 'C' || buffer[3] != 'D' |
| || buffer[4] != 'E' || buffer[5] != '\0' |
| || buffer[6] != '\0' || buffer[7] != '\0' |
| || buffer[8] != '\0' || buffer[9] != '\0') |
| abort (); |
| return 0; |
| } |
| |
| int test3 () |
| { |
| const struct foo X = { a : 'A', c : 'C', e : 'E', g : 'G', i : 'I' }; |
| char buffer[10]; |
| __builtin_memcpy (buffer, &X, 10); |
| if (buffer[0] != 'A' || buffer[1] != '\0' |
| || buffer[2] != 'C' || buffer[3] != '\0' |
| || buffer[4] != 'E' || buffer[5] != '\0' |
| || buffer[6] != 'G' || buffer[7] != '\0' |
| || buffer[8] != 'I' || buffer[9] != '\0') |
| abort (); |
| return 0; |
| } |
| |
| int test4 () |
| { |
| const struct foo X = { .b = 'B', .d = 'D', .f = 'F', .h = 'H' , .j = 'J' }; |
| char buffer[10]; |
| __builtin_memcpy (buffer, &X, 10); |
| if (buffer[0] != '\0' || buffer[1] != 'B' |
| || buffer[2] != '\0' || buffer[3] != 'D' |
| || buffer[4] != '\0' || buffer[5] != 'F' |
| || buffer[6] != '\0' || buffer[7] != 'H' |
| || buffer[8] != '\0' || buffer[9] != 'J') |
| abort (); |
| return 0; |
| } |
| |
| int main () |
| { |
| test1 (); test2 (); test3 (); test4 (); |
| return 0; |
| } |