Rustc panics on division of f64 and i32 #24138
Labels
I-ICE
Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️
Comments
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minimized: fn main() {
let max = 10;
let total : f64 = 1.0 as f64 / 1000000.0;
println!("Avg: {}", total / max);
}yields if you remove the fn main() {
let max = 10;
let total : f64 = 1.0 / 1000000.0;
println!("Avg: {}", total / max);
}you get the correct error: |
jdm
added
the
I-ICE
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It happens if we use |
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I hit mostly same ICE when multiplying. Somehow I couldn't get backtraces (if I set RUST_BACKTRACE rustc crashes with Illegal instruction). fn main() {
let x: f32 = 0.0;
let c = x * 1.0;
let q = c as f32 * 1;
}Looks like this ICE happens when using same operator twice. Doesn't happen if I change one of operators to fn main() {
let x: f32 = 0.0;
let c = x + 1.0;
let q = c as f32 + 1;
} |
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I've run into this problem too. Test case: fn main() {
let foo: f32 = 10.;
let bar = foo / 2.;
bar / 4;
} |
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Tried to find a simple example from my horrible scratch code, the code shouldn't compile due to the division of int and float but the compiler panics instead of erroring out.
I tried this code:
I expected to see this happen: warning about the division such as:
That error occurs if you remove the for loop.
Instead, this happened: rustc panicked
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rustc --version --verbose:Backtrace:
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