abc2c702af
When set, this flag skips the code that normally extracts coverage spans from MIR statements and terminators. That sometimes makes it easier to debug branch coverage and MC/DC coverage, because the coverage output is less noisy. For internal debugging only. If other code changes would make it hard to keep supporting this flag, remove it.
62 lines
1 KiB
Rust
62 lines
1 KiB
Rust
#![feature(coverage_attribute)]
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//@ edition: 2021
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//@ compile-flags: -Zcoverage-options=branch,no-mir-spans
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//@ llvm-cov-flags: --show-branches=count
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// Tests the behaviour of the `-Zcoverage-options=no-mir-spans` debugging flag.
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// The actual code below is just some non-trivial code copied from another test
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// (`while.rs`), and has no particular significance.
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macro_rules! no_merge {
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() => {
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for _ in 0..1 {}
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};
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}
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fn while_cond() {
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no_merge!();
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let mut a = 8;
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while a > 0 {
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a -= 1;
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}
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}
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fn while_cond_not() {
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no_merge!();
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let mut a = 8;
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while !(a == 0) {
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a -= 1;
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}
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}
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fn while_op_and() {
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no_merge!();
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let mut a = 8;
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let mut b = 4;
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while a > 0 && b > 0 {
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a -= 1;
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b -= 1;
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}
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}
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fn while_op_or() {
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no_merge!();
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let mut a = 4;
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let mut b = 8;
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while a > 0 || b > 0 {
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a -= 1;
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b -= 1;
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}
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}
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#[coverage(off)]
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fn main() {
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while_cond();
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while_cond_not();
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while_op_and();
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while_op_or();
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}
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