bjoernager/rust
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introduce ty::Value

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Co-authored-by: FedericoBruzzone <federico.bruzzone.i@gmail.com>
This commit is contained in:
Lukas Markeffsky 2025-01-27 04:30:00 +01:00
parent 5a45ab9738
commit 10fc0b159e
44 changed files with 214 additions and 205 deletions
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16
compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs
View file

@ -673,25 +673,23 @@ fn push_const_param<'tcx>(tcx: TyCtxt<'tcx>, ct: ty::Const<'tcx>, output: &mut S
ty::ConstKind::Param(param) => {
write!(output, "{}", param.name)
}
ty::ConstKind::Value(ty, valtree) => {
match ty.kind() {
ty::ConstKind::Value(cv) => {
match cv.ty.kind() {
ty::Int(ity) => {
// FIXME: directly extract the bits from a valtree instead of evaluating an
// already evaluated `Const` in order to get the bits.
let bits = ct
let bits = cv
.try_to_bits(tcx, ty::TypingEnv::fully_monomorphized())
.expect("expected monomorphic const in codegen");
let val = Integer::from_int_ty(&tcx, *ity).size().sign_extend(bits) as i128;
write!(output, "{val}")
}
ty::Uint(_) => {
let val = ct
let val = cv
.try_to_bits(tcx, ty::TypingEnv::fully_monomorphized())
.expect("expected monomorphic const in codegen");
write!(output, "{val}")
}
ty::Bool => {
let val = ct.try_to_bool().expect("expected monomorphic const in codegen");
let val = cv.try_to_bool().expect("expected monomorphic const in codegen");
write!(output, "{val}")
}
_ => {
@ -703,9 +701,7 @@ fn push_const_param<'tcx>(tcx: TyCtxt<'tcx>, ct: ty::Const<'tcx>, output: &mut S
// avoiding collisions and will make the emitted type names shorter.
let hash_short = tcx.with_stable_hashing_context(|mut hcx| {
let mut hasher = StableHasher::new();
hcx.while_hashing_spans(false, |hcx| {
(ty, valtree).hash_stable(hcx, &mut hasher)
});
hcx.while_hashing_spans(false, |hcx| cv.hash_stable(hcx, &mut hasher));
hasher.finish::<Hash64>()
});

2
compiler/rustc_codegen_ssa/src/mir/constant.rs
View file

@ -43,7 +43,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
mir::Const::Ty(_, c) => match c.kind() {
// A constant that came from a const generic but was then used as an argument to
// old-style simd_shuffle (passing as argument instead of as a generic param).
rustc_type_ir::ConstKind::Value(_, valtree) => return Ok(Ok(valtree)),
rustc_type_ir::ConstKind::Value(cv) => return Ok(Ok(cv.valtree)),
other => span_bug!(constant.span, "{other:#?}"),
},
// We should never encounter `Const::Val` unless MIR opts (like const prop) evaluate