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test for "erroneous constant used" post-monomorphization error #2107

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Merged
merged 1 commit into from
May 8, 2022
Merged

test for "erroneous constant used" post-monomorphization error #2107

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6 changes: 5 additions & 1 deletion src/diagnostics.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -182,7 +182,11 @@ pub fn report_error<'tcx, 'mir>(
"Undefined Behavior",
ResourceExhaustion(_) =>
"resource exhaustion",
InvalidProgram(InvalidProgramInfo::AlreadyReported(_) | InvalidProgramInfo::Layout(..)) =>
InvalidProgram(
InvalidProgramInfo::AlreadyReported(_) |
InvalidProgramInfo::Layout(..) |
InvalidProgramInfo::ReferencedConstant
) =>
"post-monomorphization error",
kind =>
bug!("This error should be impossible in Miri: {:?}", kind),
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12 changes: 12 additions & 0 deletions tests/compile-fail/erroneous_const2.rs
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Original file line number Diff line number Diff line change
@@ -0,0 +1,12 @@
const X: u32 = 5;
const Y: u32 = 6;
const FOO: u32 = [X - Y, Y - X][(X < Y) as usize];
//~^ERROR any use of this value
//~|WARN previously accepted

fn main() {
println!("{}", FOO); //~ERROR post-monomorphization error
//~|ERROR evaluation of constant value failed
//~|ERROR erroneous constant used
//~|WARN previously accepted
}