| /* PR tree-optimization/86428 - strlen of const array initialized with |
| a string of the same length not folded |
| { dg-do compile } |
| { dg-options "-O0 -Wall -fdump-tree-gimple" } */ |
| |
| #include "strlenopt.h" |
| |
| const char a1[1] = "\0"; |
| const char a2[2] = "1\0"; |
| const char a3[3] = "12\0"; |
| const char a8[8] = "1234567\0"; |
| const char a9[9] = "12345678\0"; |
| |
| const char ax[9] = "12345678\0\0\0\0"; /* { dg-warning "initializer-string for array of 'char' is too long" } */ |
| const char ay[9] = "\00012345678\0\0\0\0"; /* { dg-warning "initializer-string for array of 'char' is too long" } */ |
| |
| |
| int len1 (void) |
| { |
| size_t len0 = strlen (a1); |
| return len0; |
| } |
| |
| int len (void) |
| { |
| size_t len = strlen (a2) + strlen (a3) + strlen (a8) + strlen (a9); |
| return len; |
| } |
| |
| int lenx (void) |
| { |
| size_t lenx = strlen (ax); |
| return lenx; |
| } |
| |
| int leny (void) |
| { |
| size_t leny = strlen (ay); |
| return leny; |
| } |
| |
| int cmp88 (void) |
| { |
| int cmp88 = memcmp (a8, "1234567\0", sizeof a8); |
| return cmp88; |
| } |
| |
| /* { dg-final { scan-tree-dump-times "strlen1" 0 "gimple" } } |
| { dg-final { scan-tree-dump-times "len0 = 0;" 1 "gimple" } } |
| { dg-final { scan-tree-dump-times "len = 18;" 1 "gimple" } } |
| { dg-final { scan-tree-dump-times "lenx = 8;" 1 "gimple" } } |
| { dg-final { scan-tree-dump-times "leny = 0;" 1 "gimple" } } |
| { dg-final { scan-tree-dump-times "cmp88 = 0;" 1 "gimple" } } */ |