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| 94 | #define ecb_pure ecb_attribute ((__pure__)) |
94 | #define ecb_pure ecb_attribute ((__pure__)) |
| 95 | #define ecb_hot ecb_attribute ((__hot__)) /* 4.3 */ |
95 | #define ecb_hot ecb_attribute ((__hot__)) /* 4.3 */ |
| 96 | #define ecb_cold ecb_attribute ((__cold__)) /* 4.3 */ |
96 | #define ecb_cold ecb_attribute ((__cold__)) /* 4.3 */ |
| 97 | |
97 | |
| 98 | /* put into if's if you are very sure that the expression */ |
98 | /* put into if's if you are very sure that the expression */ |
| 99 | /* is mostly true or mosty false. note that these return */ |
99 | /* is mostly true or mostly false. note that these return */ |
| 100 | /* booleans, not the expression. */ |
100 | /* booleans, not the expression. */ |
| 101 | #define ecb_unlikely(expr) ecb_expect (!!(expr), 0) |
101 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
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102 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
| 102 | #define ecb_likely(expr) ecb_expect (!!(expr), 1) |
103 | #define ecb_likely(expr) ecb_expect_true (expr) |
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104 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
| 103 | |
105 | |
| 104 | /* try to tell the compiler that some condition is definitely true */ |
106 | /* try to tell the compiler that some condition is definitely true */ |
| 105 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
107 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
| 106 | |
108 | |
| 107 | /* count trailing zero bits and count # of one bits */ |
109 | /* count trailing zero bits and count # of one bits */ |
