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71 lines
2.5 KiB
Plaintext
71 lines
2.5 KiB
Plaintext
LL| |#![feature(coverage_attribute)]
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LL| |//@ edition: 2021
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LL| |//@ compile-flags: -Copt-level=0 -Zmir-opt-level=3
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LL| |
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LL| |// Regression test for <https://github.com/rust-lang/rust/issues/117012>.
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LL| |//
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LL| |// If some coverage counters were removed by MIR optimizations, we need to take
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LL| |// care not to refer to those counter IDs in coverage mappings, and instead
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LL| |// replace them with a constant zero value. If we don't, `llvm-cov` might see
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LL| |// a too-large counter ID and silently discard the entire function from its
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LL| |// coverage reports.
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LL| |
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LL| |#[derive(Debug, PartialEq, Eq)]
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LL| |struct Foo(u32);
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LL| |
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LL| 1|fn eq_good() {
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LL| 1| println!("a");
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LL| 1| assert_eq!(Foo(1), Foo(1));
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LL| 1|}
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LL| |
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LL| 1|fn eq_good_message() {
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LL| 1| println!("b");
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LL| 1| assert_eq!(Foo(1), Foo(1), "message b");
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^0
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LL| 1|}
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LL| |
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LL| 1|fn ne_good() {
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LL| 1| println!("c");
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LL| 1| assert_ne!(Foo(1), Foo(3));
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LL| 1|}
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LL| |
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LL| 1|fn ne_good_message() {
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LL| 1| println!("d");
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LL| 1| assert_ne!(Foo(1), Foo(3), "message d");
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^0
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LL| 1|}
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LL| |
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LL| 1|fn eq_bad() {
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LL| 1| println!("e");
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LL| 1| assert_eq!(Foo(1), Foo(3));
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LL| 0|}
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LL| |
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LL| 1|fn eq_bad_message() {
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LL| 1| println!("f");
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LL| 1| assert_eq!(Foo(1), Foo(3), "message f");
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LL| 0|}
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LL| |
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LL| 1|fn ne_bad() {
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LL| 1| println!("g");
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LL| 1| assert_ne!(Foo(1), Foo(1));
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LL| 0|}
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LL| |
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LL| 1|fn ne_bad_message() {
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LL| 1| println!("h");
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LL| 1| assert_ne!(Foo(1), Foo(1), "message h");
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LL| 0|}
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LL| |
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LL| |#[coverage(off)]
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LL| |fn main() {
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LL| | eq_good();
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LL| | eq_good_message();
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LL| | ne_good();
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LL| | ne_good_message();
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LL| |
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LL| | assert!(std::panic::catch_unwind(eq_bad).is_err());
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LL| | assert!(std::panic::catch_unwind(eq_bad_message).is_err());
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LL| | assert!(std::panic::catch_unwind(ne_bad).is_err());
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LL| | assert!(std::panic::catch_unwind(ne_bad_message).is_err());
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LL| |}
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