bjoernager/rust
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coverage: Simplify building coverage expressions based on sums

Browse source 
In some cases we need to prepare a coverage expression that is the sum of an
arbitrary number of other terms. This patch simplifies the code paths that
build those sums.

This causes some churn in the mappings, because the previous code was building
its sums in a somewhat idiosyncratic order.
This commit is contained in:
Zalathar 2023-10-31 17:44:26 +11:00
parent 31113c5f56
commit a1e2c10b1f
7 changed files with 152 additions and 169 deletions
Download patch file Download diff file Expand all files Collapse all files

10
tests/coverage/conditions.cov-map
View file

@ -1,5 +1,5 @@
Function name: conditions::main
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Number of files: 1
- file 0 => global file 1
Number of expressions: 142
@ -139,9 +139,9 @@ Number of expressions: 142
- expression 133 operands: lhs = Expression(134, Add), rhs = Counter(7)
- expression 134 operands: lhs = Counter(5), rhs = Counter(6)
- expression 135 operands: lhs = Expression(136, Add), rhs = Expression(139, Sub)
- expression 136 operands: lhs = Expression(137, Add), rhs = Expression(138, Add)
- expression 137 operands: lhs = Counter(9), rhs = Counter(10)
- expression 138 operands: lhs = Counter(11), rhs = Counter(12)
- expression 136 operands: lhs = Expression(137, Add), rhs = Counter(12)
- expression 137 operands: lhs = Expression(138, Add), rhs = Counter(11)
- expression 138 operands: lhs = Counter(9), rhs = Counter(10)
- expression 139 operands: lhs = Expression(140, Sub), rhs = Counter(3)
- expression 140 operands: lhs = Expression(141, Add), rhs = Counter(2)
- expression 141 operands: lhs = Counter(1), rhs = Zero
@ -255,5 +255,5 @@ Number of file 0 mappings: 68
= (((c5 + c6) + c7) + c8)
- Code(Counter(9)) at (prev + 2, 9) to (start + 0, 15)
- Code(Expression(130, Add)) at (prev + 2, 1) to (start + 0, 2)
= ((c4 + (((c5 + c6) + c7) + c8)) + (((c9 + c10) + (c11 + c12)) + (((c1 + Zero) - c2) - c3)))
= ((c4 + (((c5 + c6) + c7) + c8)) + ((((c9 + c10) + c11) + c12) + (((c1 + Zero) - c2) - c3)))