| /* { dg-do compile } */ |
| /* { dg-options "-O2 -fdump-tree-profile_estimate" } */ |
| |
| extern int global; |
| |
| int x; |
| |
| short v = 0; |
| short expected = 0; |
| short max = ~0; |
| #define STRONG 0 |
| |
| void foo (int a, int b) |
| { |
| if (__builtin_expect_with_probability (a < b, 1, 0.6f) > __builtin_expect (b, 0)) |
| global++; |
| |
| if (__builtin_expect_with_probability (a < b, 1, 0.777f) > 0) |
| global++; |
| |
| if (__builtin_expect_with_probability (a < b, 1, 0.99) == __atomic_compare_exchange_n (&v, &expected, max, STRONG , __ATOMIC_RELAXED, __ATOMIC_RELAXED)) |
| global++; |
| |
| if (__builtin_expect_with_probability (a < 10, 1, 0.9f) > __builtin_expect_with_probability (b, 0, 0.8f)) |
| global++; |
| } |
| |
| /* { dg-final { scan-tree-dump "__builtin_expect_with_probability heuristics of edge .*->.*: 54.00%" "profile_estimate"} } */ |
| /* { dg-final { scan-tree-dump "__builtin_expect_with_probability heuristics of edge .*->.*: 77.70%" "profile_estimate"} } */ |
| /* { dg-final { scan-tree-dump "__builtin_expect_with_probability heuristics of edge .*->.*: 98.96%" "profile_estimate"} } */ |
| /* { dg-final { scan-tree-dump "__builtin_expect_with_probability heuristics of edge .*->.*: 71.99%" "profile_estimate"} } */ |
