diff options
Diffstat (limited to 'tests/coverage/mcdc/condition-limit.coverage')
| -rw-r--r-- | tests/coverage/mcdc/condition-limit.coverage | 70 |
1 files changed, 25 insertions, 45 deletions
diff --git a/tests/coverage/mcdc/condition-limit.coverage b/tests/coverage/mcdc/condition-limit.coverage index ae8596bb961..d11b8a17710 100644 --- a/tests/coverage/mcdc/condition-limit.coverage +++ b/tests/coverage/mcdc/condition-limit.coverage @@ -1,76 +1,56 @@ LL| |#![feature(coverage_attribute)] LL| |//@ edition: 2021 - LL| |//@ ignore-llvm-version: 19 - 99 + LL| |//@ min-llvm-version: 19 LL| |//@ compile-flags: -Zcoverage-options=mcdc LL| |//@ llvm-cov-flags: --show-branches=count --show-mcdc LL| | - LL| |// Check that MC/DC instrumentation can gracefully handle conditions that - LL| |// exceed LLVM's limit of 6 conditions per decision. - LL| |// - LL| |// (The limit is enforced in `compiler/rustc_mir_build/src/build/coverageinfo/mcdc.rs`.) - LL| | - LL| 1|fn good() { - LL| 1| // With only 6 conditions, perform full MC/DC instrumentation. - LL| 1| let [a, b, c, d, e, f] = <[bool; 6]>::default(); - LL| 1| if a && b && c && d && e && f { - ^0 ^0 ^0 ^0 ^0 + LL| 2|fn accept_7_conditions(bool_arr: [bool; 7]) { + LL| 2| let [a, b, c, d, e, f, g] = bool_arr; + LL| 2| if a && b && c && d && e && f && g { + ^1 ^1 ^1 ^1 ^1 ^1 ------------------ - | Branch (LL:8): [True: 0, False: 1] - | Branch (LL:13): [True: 0, False: 0] - | Branch (LL:18): [True: 0, False: 0] - | Branch (LL:23): [True: 0, False: 0] - | Branch (LL:28): [True: 0, False: 0] - | Branch (LL:33): [True: 0, False: 0] + | Branch (LL:8): [True: 1, False: 1] + | Branch (LL:13): [True: 1, False: 0] + | Branch (LL:18): [True: 1, False: 0] + | Branch (LL:23): [True: 1, False: 0] + | Branch (LL:28): [True: 1, False: 0] + | Branch (LL:33): [True: 1, False: 0] + | Branch (LL:38): [True: 1, False: 0] ------------------ - |---> MC/DC Decision Region (LL:8) to (LL:34) + |---> MC/DC Decision Region (LL:8) to (LL:39) | - | Number of Conditions: 6 + | Number of Conditions: 7 | Condition C1 --> (LL:8) | Condition C2 --> (LL:13) | Condition C3 --> (LL:18) | Condition C4 --> (LL:23) | Condition C5 --> (LL:28) | Condition C6 --> (LL:33) + | Condition C7 --> (LL:38) | | Executed MC/DC Test Vectors: | - | C1, C2, C3, C4, C5, C6 Result - | 1 { F, -, -, -, -, - = F } + | C1, C2, C3, C4, C5, C6, C7 Result + | 1 { F, -, -, -, -, -, - = F } + | 2 { T, T, T, T, T, T, T = T } | - | C1-Pair: not covered + | C1-Pair: covered: (1,2) | C2-Pair: not covered | C3-Pair: not covered | C4-Pair: not covered | C5-Pair: not covered | C6-Pair: not covered - | MC/DC Coverage for Decision: 0.00% + | C7-Pair: not covered + | MC/DC Coverage for Decision: 14.29% | ------------------ - LL| 0| core::hint::black_box("hello"); - LL| 1| } - LL| 1|} - LL| | - LL| 1|fn bad() { - LL| 1| // With 7 conditions, fall back to branch instrumentation only. - LL| 1| let [a, b, c, d, e, f, g] = <[bool; 7]>::default(); - LL| 1| if a && b && c && d && e && f && g { - ^0 ^0 ^0 ^0 ^0 ^0 - ------------------ - | Branch (LL:8): [True: 0, False: 1] - | Branch (LL:13): [True: 0, False: 0] - | Branch (LL:18): [True: 0, False: 0] - | Branch (LL:23): [True: 0, False: 0] - | Branch (LL:28): [True: 0, False: 0] - | Branch (LL:33): [True: 0, False: 0] - | Branch (LL:38): [True: 0, False: 0] - ------------------ - LL| 0| core::hint::black_box("hello"); + LL| 1| core::hint::black_box("hello"); LL| 1| } - LL| 1|} + LL| 2|} LL| | LL| |#[coverage(off)] LL| |fn main() { - LL| | good(); - LL| | bad(); + LL| | accept_7_conditions([false; 7]); + LL| | accept_7_conditions([true; 7]); LL| |} |