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tests(coverage): Add mcdc_non_control_flow tests
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‎tests/coverage/mcdc_non_control_flow.cov-map

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Function name: mcdc_non_control_flow::assign_3
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Raw bytes (73): 0x[01, 01, 09, 05, 07, 0b, 11, 09, 0d, 01, 05, 01, 05, 22, 11, 01, 05, 22, 11, 01, 05, 09, 01, 16, 01, 00, 28, 03, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 20, 05, 22, 00, 0d, 00, 0e, 22, 00, 12, 00, 13, 20, 1e, 11, 00, 12, 00, 13, 1e, 00, 17, 00, 18, 20, 09, 0d, 00, 17, 00, 18, 03, 01, 05, 01, 02]
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Number of files: 1
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- file 0 => global file 1
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Number of expressions: 9
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- expression 0 operands: lhs = Counter(1), rhs = Expression(1, Add)
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- expression 1 operands: lhs = Expression(2, Add), rhs = Counter(4)
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- expression 2 operands: lhs = Counter(2), rhs = Counter(3)
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- expression 3 operands: lhs = Counter(0), rhs = Counter(1)
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- expression 4 operands: lhs = Counter(0), rhs = Counter(1)
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- expression 5 operands: lhs = Expression(8, Sub), rhs = Counter(4)
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- expression 6 operands: lhs = Counter(0), rhs = Counter(1)
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- expression 7 operands: lhs = Expression(8, Sub), rhs = Counter(4)
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- expression 8 operands: lhs = Counter(0), rhs = Counter(1)
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Number of file 0 mappings: 9
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- Code(Counter(0)) at (prev + 22, 1) to (start + 0, 40)
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- Code(Expression(0, Add)) at (prev + 1, 9) to (start + 0, 10)
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= (c1 + ((c2 + c3) + c4))
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- Code(Counter(0)) at (prev + 0, 13) to (start + 0, 14)
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- Branch { true: Counter(1), false: Expression(8, Sub) } at (prev + 0, 13) to (start + 0, 14)
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true = c1
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false = (c0 - c1)
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- Code(Expression(8, Sub)) at (prev + 0, 18) to (start + 0, 19)
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= (c0 - c1)
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- Branch { true: Expression(7, Sub), false: Counter(4) } at (prev + 0, 18) to (start + 0, 19)
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true = ((c0 - c1) - c4)
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false = c4
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- Code(Expression(7, Sub)) at (prev + 0, 23) to (start + 0, 24)
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= ((c0 - c1) - c4)
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- Branch { true: Counter(2), false: Counter(3) } at (prev + 0, 23) to (start + 0, 24)
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true = c2
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false = c3
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- Code(Expression(0, Add)) at (prev + 1, 5) to (start + 1, 2)
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= (c1 + ((c2 + c3) + c4))
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Function name: mcdc_non_control_flow::assign_3_bis
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Raw bytes (82): 0x[01, 01, 07, 07, 11, 09, 0d, 01, 05, 05, 09, 16, 1a, 05, 09, 01, 05, 0a, 01, 1b, 01, 00, 2c, 03, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 28, 00, 02, 00, 0d, 00, 13, 30, 05, 1a, 01, 02, 00, 00, 0d, 00, 0e, 05, 00, 12, 00, 13, 30, 09, 16, 02, 00, 00, 00, 12, 00, 13, 13, 00, 17, 00, 18, 20, 0d, 11, 00, 17, 00, 18, 03, 01, 05, 01, 02]
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Number of files: 1
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- file 0 => global file 1
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Number of expressions: 7
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- expression 0 operands: lhs = Expression(1, Add), rhs = Counter(4)
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- expression 1 operands: lhs = Counter(2), rhs = Counter(3)
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- expression 2 operands: lhs = Counter(0), rhs = Counter(1)
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- expression 3 operands: lhs = Counter(1), rhs = Counter(2)
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- expression 4 operands: lhs = Expression(5, Sub), rhs = Expression(6, Sub)
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- expression 5 operands: lhs = Counter(1), rhs = Counter(2)
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- expression 6 operands: lhs = Counter(0), rhs = Counter(1)
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Number of file 0 mappings: 10
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- Code(Counter(0)) at (prev + 27, 1) to (start + 0, 44)
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- Code(Expression(0, Add)) at (prev + 1, 9) to (start + 0, 10)
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= ((c2 + c3) + c4)
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- Code(Counter(0)) at (prev + 0, 13) to (start + 0, 14)
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- MCDCDecision { bitmap_idx: 0, conditions_num: 2 } at (prev + 0, 13) to (start + 0, 19)
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- MCDCBranch { true: Counter(1), false: Expression(6, Sub), condition_id: 1, true_next_id: 2, false_next_id: 0 } at (prev + 0, 13) to (start + 0, 14)
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true = c1
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false = (c0 - c1)
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- Code(Counter(1)) at (prev + 0, 18) to (start + 0, 19)
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- MCDCBranch { true: Counter(2), false: Expression(5, Sub), condition_id: 2, true_next_id: 0, false_next_id: 0 } at (prev + 0, 18) to (start + 0, 19)
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true = c2
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false = (c1 - c2)
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- Code(Expression(4, Add)) at (prev + 0, 23) to (start + 0, 24)
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= ((c1 - c2) + (c0 - c1))
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- Branch { true: Counter(3), false: Counter(4) } at (prev + 0, 23) to (start + 0, 24)
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true = c3
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false = c4
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- Code(Expression(0, Add)) at (prev + 1, 5) to (start + 1, 2)
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= ((c2 + c3) + c4)
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Function name: mcdc_non_control_flow::assign_and
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Raw bytes (51): 0x[01, 01, 04, 07, 0e, 09, 0d, 01, 05, 01, 05, 07, 01, 0c, 01, 00, 21, 03, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 20, 05, 0e, 00, 0d, 00, 0e, 05, 00, 12, 00, 13, 20, 09, 0d, 00, 12, 00, 13, 03, 01, 05, 01, 02]
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Number of files: 1
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- file 0 => global file 1
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Number of expressions: 4
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- expression 0 operands: lhs = Expression(1, Add), rhs = Expression(3, Sub)
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- expression 1 operands: lhs = Counter(2), rhs = Counter(3)
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- expression 2 operands: lhs = Counter(0), rhs = Counter(1)
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- expression 3 operands: lhs = Counter(0), rhs = Counter(1)
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Number of file 0 mappings: 7
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- Code(Counter(0)) at (prev + 12, 1) to (start + 0, 33)
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- Code(Expression(0, Add)) at (prev + 1, 9) to (start + 0, 10)
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= ((c2 + c3) + (c0 - c1))
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- Code(Counter(0)) at (prev + 0, 13) to (start + 0, 14)
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- Branch { true: Counter(1), false: Expression(3, Sub) } at (prev + 0, 13) to (start + 0, 14)
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true = c1
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false = (c0 - c1)
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- Code(Counter(1)) at (prev + 0, 18) to (start + 0, 19)
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- Branch { true: Counter(2), false: Counter(3) } at (prev + 0, 18) to (start + 0, 19)
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true = c2
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false = c3
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- Code(Expression(0, Add)) at (prev + 1, 5) to (start + 1, 2)
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= ((c2 + c3) + (c0 - c1))
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Function name: mcdc_non_control_flow::assign_or
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Raw bytes (51): 0x[01, 01, 04, 07, 0d, 05, 09, 01, 05, 01, 05, 07, 01, 11, 01, 00, 20, 03, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 20, 05, 0e, 00, 0d, 00, 0e, 0e, 00, 12, 00, 13, 20, 09, 0d, 00, 12, 00, 13, 03, 01, 05, 01, 02]
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Number of files: 1
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- file 0 => global file 1
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Number of expressions: 4
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- expression 0 operands: lhs = Expression(1, Add), rhs = Counter(3)
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- expression 1 operands: lhs = Counter(1), rhs = Counter(2)
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- expression 2 operands: lhs = Counter(0), rhs = Counter(1)
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- expression 3 operands: lhs = Counter(0), rhs = Counter(1)
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Number of file 0 mappings: 7
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- Code(Counter(0)) at (prev + 17, 1) to (start + 0, 32)
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- Code(Expression(0, Add)) at (prev + 1, 9) to (start + 0, 10)
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= ((c1 + c2) + c3)
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- Code(Counter(0)) at (prev + 0, 13) to (start + 0, 14)
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- Branch { true: Counter(1), false: Expression(3, Sub) } at (prev + 0, 13) to (start + 0, 14)
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true = c1
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false = (c0 - c1)
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- Code(Expression(3, Sub)) at (prev + 0, 18) to (start + 0, 19)
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= (c0 - c1)
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- Branch { true: Counter(2), false: Counter(3) } at (prev + 0, 18) to (start + 0, 19)
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true = c2
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false = c3
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- Code(Expression(0, Add)) at (prev + 1, 5) to (start + 1, 2)
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= ((c1 + c2) + c3)
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Function name: mcdc_non_control_flow::foo
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Raw bytes (9): 0x[01, 01, 00, 01, 01, 25, 01, 02, 02]
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Number of files: 1
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- file 0 => global file 1
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Number of expressions: 0
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Number of file 0 mappings: 1
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- Code(Counter(0)) at (prev + 37, 1) to (start + 2, 2)
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Function name: mcdc_non_control_flow::func_call
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Raw bytes (39): 0x[01, 01, 03, 01, 05, 0b, 02, 09, 0d, 05, 01, 29, 01, 01, 0a, 20, 05, 02, 01, 09, 00, 0a, 05, 00, 0e, 00, 0f, 20, 09, 0d, 00, 0e, 00, 0f, 07, 01, 01, 00, 02]
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Number of files: 1
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- file 0 => global file 1
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Number of expressions: 3
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- expression 0 operands: lhs = Counter(0), rhs = Counter(1)
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- expression 1 operands: lhs = Expression(2, Add), rhs = Expression(0, Sub)
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- expression 2 operands: lhs = Counter(2), rhs = Counter(3)
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Number of file 0 mappings: 5
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- Code(Counter(0)) at (prev + 41, 1) to (start + 1, 10)
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- Branch { true: Counter(1), false: Expression(0, Sub) } at (prev + 1, 9) to (start + 0, 10)
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true = c1
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false = (c0 - c1)
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- Code(Counter(1)) at (prev + 0, 14) to (start + 0, 15)
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- Branch { true: Counter(2), false: Counter(3) } at (prev + 0, 14) to (start + 0, 15)
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true = c2
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false = c3
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- Code(Expression(1, Add)) at (prev + 1, 1) to (start + 0, 2)
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= ((c2 + c3) + (c0 - c1))
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Function name: mcdc_non_control_flow::right_comb_tree
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Raw bytes (117): 0x[01, 01, 13, 07, 1a, 0b, 19, 0f, 15, 13, 11, 09, 0d, 01, 05, 01, 05, 05, 19, 05, 19, 4a, 15, 05, 19, 4a, 15, 05, 19, 46, 11, 4a, 15, 05, 19, 46, 11, 4a, 15, 05, 19, 0d, 01, 20, 01, 00, 41, 03, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 20, 05, 1a, 00, 0d, 00, 0e, 05, 00, 13, 00, 14, 20, 4a, 19, 00, 13, 00, 14, 4a, 00, 19, 00, 1a, 20, 46, 15, 00, 19, 00, 1a, 46, 00, 1f, 00, 20, 20, 42, 11, 00, 1f, 00, 20, 42, 00, 24, 00, 27, 20, 09, 0d, 00, 24, 00, 27, 03, 01, 05, 01, 02]
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Number of files: 1
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- file 0 => global file 1
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Number of expressions: 19
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- expression 0 operands: lhs = Expression(1, Add), rhs = Expression(6, Sub)
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- expression 1 operands: lhs = Expression(2, Add), rhs = Counter(6)
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- expression 2 operands: lhs = Expression(3, Add), rhs = Counter(5)
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- expression 3 operands: lhs = Expression(4, Add), rhs = Counter(4)
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- expression 4 operands: lhs = Counter(2), rhs = Counter(3)
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- expression 5 operands: lhs = Counter(0), rhs = Counter(1)
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- expression 6 operands: lhs = Counter(0), rhs = Counter(1)
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- expression 7 operands: lhs = Counter(1), rhs = Counter(6)
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- expression 8 operands: lhs = Counter(1), rhs = Counter(6)
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- expression 9 operands: lhs = Expression(18, Sub), rhs = Counter(5)
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- expression 10 operands: lhs = Counter(1), rhs = Counter(6)
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- expression 11 operands: lhs = Expression(18, Sub), rhs = Counter(5)
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- expression 12 operands: lhs = Counter(1), rhs = Counter(6)
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- expression 13 operands: lhs = Expression(17, Sub), rhs = Counter(4)
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- expression 14 operands: lhs = Expression(18, Sub), rhs = Counter(5)
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- expression 15 operands: lhs = Counter(1), rhs = Counter(6)
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- expression 16 operands: lhs = Expression(17, Sub), rhs = Counter(4)
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- expression 17 operands: lhs = Expression(18, Sub), rhs = Counter(5)
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- expression 18 operands: lhs = Counter(1), rhs = Counter(6)
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Number of file 0 mappings: 13
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- Code(Counter(0)) at (prev + 32, 1) to (start + 0, 65)
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- Code(Expression(0, Add)) at (prev + 1, 9) to (start + 0, 10)
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= (((((c2 + c3) + c4) + c5) + c6) + (c0 - c1))
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- Code(Counter(0)) at (prev + 0, 13) to (start + 0, 14)
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- Branch { true: Counter(1), false: Expression(6, Sub) } at (prev + 0, 13) to (start + 0, 14)
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true = c1
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false = (c0 - c1)
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- Code(Counter(1)) at (prev + 0, 19) to (start + 0, 20)
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- Branch { true: Expression(18, Sub), false: Counter(6) } at (prev + 0, 19) to (start + 0, 20)
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true = (c1 - c6)
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false = c6
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- Code(Expression(18, Sub)) at (prev + 0, 25) to (start + 0, 26)
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= (c1 - c6)
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- Branch { true: Expression(17, Sub), false: Counter(5) } at (prev + 0, 25) to (start + 0, 26)
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true = ((c1 - c6) - c5)
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false = c5
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- Code(Expression(17, Sub)) at (prev + 0, 31) to (start + 0, 32)
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= ((c1 - c6) - c5)
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- Branch { true: Expression(16, Sub), false: Counter(4) } at (prev + 0, 31) to (start + 0, 32)
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true = (((c1 - c6) - c5) - c4)
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false = c4
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- Code(Expression(16, Sub)) at (prev + 0, 36) to (start + 0, 39)
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= (((c1 - c6) - c5) - c4)
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- Branch { true: Counter(2), false: Counter(3) } at (prev + 0, 36) to (start + 0, 39)
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true = c2
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false = c3
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- Code(Expression(0, Add)) at (prev + 1, 5) to (start + 1, 2)
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= (((((c2 + c3) + c4) + c5) + c6) + (c0 - c1))
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‎tests/coverage/mcdc_non_control_flow.coverage

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LL| |#![feature(coverage_attribute)]
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LL| |//@ edition: 2021
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LL| |//@ min-llvm-version: 18
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LL| |//@ compile-flags: -Zcoverage-options=mcdc
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LL| |//@ llvm-cov-flags: --show-mcdc
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LL| |
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LL| |// This test ensures that boolean expressions that are not inside control flow
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LL| |// decisions are correctly instrumented.
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LL| |
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LL| |use core::hint::black_box;
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LL| |
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LL| 3|fn assign_and(a: bool, b: bool) {
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LL| 3| let x = a && b;
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^2
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LL| 3| black_box(x);
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LL| 3|}
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LL| |
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LL| 3|fn assign_or(a: bool, b: bool) {
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LL| 3| let x = a || b;
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^1
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LL| 3| black_box(x);
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LL| 3|}
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LL| |
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LL| 4|fn assign_3(a: bool, b: bool, c: bool) {
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LL| 4| let x = a || b && c;
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^2 ^1
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LL| 4| black_box(x);
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LL| 4|}
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LL| |
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LL| 4|fn assign_3_bis(a: bool, b: bool, c: bool) {
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LL| 4| let x = a && b || c;
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^2 ^3
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------------------
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|---> MC/DC Decision Region (LL:13) to (LL:19)
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|
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| Number of Conditions: 2
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| Condition C1 --> (LL:13)
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| Condition C2 --> (LL:18)
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|
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| Executed MC/DC Test Vectors:
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|
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| C1, C2 Result
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| 1 { F, - = F }
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| 2 { T, F = F }
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| 3 { T, T = T }
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|
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| C1-Pair: covered: (1,3)
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| C2-Pair: covered: (2,3)
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| MC/DC Coverage for Decision: 100.00%
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|
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------------------
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LL| 4| black_box(x);
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LL| 4|}
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LL| |
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LL| 3|fn right_comb_tree(a: bool, b: bool, c: bool, d: bool, e: bool) {
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LL| 3| let x = a && (b && (c && (d && (e))));
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^2 ^1 ^1 ^1
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LL| 3| black_box(x);
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LL| 3|}
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LL| |
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LL| 3|fn foo(a: bool) -> bool {
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LL| 3| black_box(a)
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LL| 3|}
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LL| |
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LL| 3|fn func_call(a: bool, b: bool) {
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LL| 3| foo(a && b);
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^2
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LL| 3|}
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LL| |
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LL| |#[coverage(off)]
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LL| |fn main() {
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LL| | assign_and(true, false);
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LL| | assign_and(true, true);
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LL| | assign_and(false, false);
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LL| |
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LL| | assign_or(true, false);
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LL| | assign_or(true, true);
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LL| | assign_or(false, false);
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LL| |
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LL| | assign_3(true, false, false);
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LL| | assign_3(true, true, false);
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LL| | assign_3(false, false, true);
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LL| | assign_3(false, true, true);
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LL| |
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LL| | assign_3_bis(true, false, false);
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LL| | assign_3_bis(true, true, false);
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LL| | assign_3_bis(false, false, true);
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LL| | assign_3_bis(false, true, true);
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LL| |
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LL| | right_comb_tree(false, false, false, true, true);
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LL| | right_comb_tree(true, false, false, true, true);
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LL| | right_comb_tree(true, true, true, true, true);
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LL| |
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LL| | func_call(true, false);
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LL| | func_call(true, true);
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LL| | func_call(false, false);
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LL| |}
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‎tests/coverage/mcdc_non_control_flow.rs

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#![feature(coverage_attribute)]
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//@ edition: 2021
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//@ min-llvm-version: 18
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//@ compile-flags: -Zcoverage-options=mcdc
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//@ llvm-cov-flags: --show-mcdc
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// This test ensures that boolean expressions that are not inside control flow
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// decisions are correctly instrumented.
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use core::hint::black_box;
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fn assign_and(a: bool, b: bool) {
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let x = a && b;
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black_box(x);
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}
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fn assign_or(a: bool, b: bool) {
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let x = a || b;
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black_box(x);
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}
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fn assign_3(a: bool, b: bool, c: bool) {
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let x = a || b && c;
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black_box(x);
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}
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fn assign_3_bis(a: bool, b: bool, c: bool) {
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let x = a && b || c;
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black_box(x);
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}
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fn right_comb_tree(a: bool, b: bool, c: bool, d: bool, e: bool) {
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let x = a && (b && (c && (d && (e))));
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black_box(x);
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}
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fn foo(a: bool) -> bool {
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black_box(a)
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}
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fn func_call(a: bool, b: bool) {
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foo(a && b);
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}
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#[coverage(off)]
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fn main() {
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assign_and(true, false);
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assign_and(true, true);
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assign_and(false, false);
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assign_or(true, false);
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assign_or(true, true);
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assign_or(false, false);
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assign_3(true, false, false);
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assign_3(true, true, false);
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assign_3(false, false, true);
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assign_3(false, true, true);
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assign_3_bis(true, false, false);
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assign_3_bis(true, true, false);
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assign_3_bis(false, false, true);
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assign_3_bis(false, true, true);
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right_comb_tree(false, false, false, true, true);
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right_comb_tree(true, false, false, true, true);
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right_comb_tree(true, true, true, true, true);
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func_call(true, false);
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func_call(true, true);
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func_call(false, false);
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}

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