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39 lines
1.4 KiB
Rust
39 lines
1.4 KiB
Rust
/// Make sure that line debuginfo is correct for diverging calls under certain
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/// conditions. In particular we want to ensure that the line number is never
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/// 0, but we check the absence of 0 by looking for the expected exact line
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/// numbers. Regression test for <https://github.com/rust-lang/rust/issues/59558>.
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//@ compile-flags: -g -Clto -Copt-level=0
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//@ no-prefer-dynamic
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// First find the scope of both diverge() calls, namely this main() function.
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// CHECK-DAG: [[MAIN_SCOPE:![0-9]+]] = distinct !DISubprogram(name: "main", linkageName: {{.*}}diverging_function_call_debuginfo{{.*}}main{{.*}}
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fn main() {
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if True == False {
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// unreachable
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// Then find the DILocation with the correct line number for this call ...
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// CHECK-DAG: [[UNREACHABLE_CALL_DBG:![0-9]+]] = !DILocation(line: [[@LINE+1]], {{.*}}scope: [[MAIN_SCOPE]]
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diverge();
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}
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// ... and this call.
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// CHECK-DAG: [[LAST_CALL_DBG:![0-9]+]] = !DILocation(line: [[@LINE+1]], {{.*}}scope: [[MAIN_SCOPE]]
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diverge();
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}
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#[derive(PartialEq)]
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pub enum MyBool {
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True,
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False,
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}
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use MyBool::*;
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fn diverge() -> ! {
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panic!();
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}
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// Finally make sure both DILocations belong to each the respective diverge() call.
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// CHECK-DAG: call void {{.*}}diverging_function_call_debuginfo{{.*}}diverge{{.*}} !dbg [[LAST_CALL_DBG]]
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// CHECK-DAG: call void {{.*}}diverging_function_call_debuginfo{{.*}}diverge{{.*}} !dbg [[UNREACHABLE_CALL_DBG]]
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