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Rollup merge of #126159 - RalfJung:scalarint-size-mismatch, r=oli-obk

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ScalarInt: size mismatches are a bug, do not delay the panic

Cc [Zulip](https://rust-lang.zulipchat.com/#narrow/stream/146212-t-compiler.2Fconst-eval/topic/Why.20are.20ScalarInt.20to.20iN.2FuN.20methods.20fallible.3F)

r? ``@oli-obk``
This commit is contained in:
Matthias Krüger 2024-06-10 21:12:25 +02:00 • committed by GitHub
commit 2d7f7ffba5
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45 changed files with 247 additions and 313 deletions
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2
compiler/rustc_codegen_llvm/src/intrinsic.rs
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@ -1223,7 +1223,7 @@ fn generic_simd_intrinsic<'ll, 'tcx>(
.iter()
.enumerate()
.map(|(arg_idx, val)| {
let idx = val.unwrap_leaf().try_to_i32().unwrap();
let idx = val.unwrap_leaf().to_i32();
if idx >= i32::try_from(total_len).unwrap() {
bx.sess().dcx().emit_err(InvalidMonomorphization::SimdIndexOutOfBounds {
span,