/* { 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"} } */