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avoid unnecessary type sanity checks

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This commit is contained in:
Ralf Jung
2025-07-29 17:22:22 +02:00
parent dbc030e034
commit e2cc7757e1
4 changed files with 11 additions and 15 deletions
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compiler/rustc_pattern_analysis/src/rustc.rs
+5 -5
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@@ -525,7 +525,7 @@ pub fn lower_pat(&self, pat: &'p Pat<'tcx>) -> DeconstructedPat<'p, 'tcx> {
}
ty::Char | ty::Int(_) | ty::Uint(_) => {
ctor = {
let bits = value.try_to_scalar_int().unwrap().to_bits_unchecked();
let bits = value.valtree.unwrap_leaf().to_bits_unchecked();
let x = match *ty.kind() {
ty::Int(ity) => {
let size = Integer::from_int_ty(&cx.tcx, ity).size().bits();
@@ -540,7 +540,7 @@ pub fn lower_pat(&self, pat: &'p Pat<'tcx>) -> DeconstructedPat<'p, 'tcx> {
}
ty::Float(ty::FloatTy::F16) => {
use rustc_apfloat::Float;
let bits = value.try_to_scalar_int().unwrap().to_u16();
let bits = value.valtree.unwrap_leaf().to_u16();
let value = rustc_apfloat::ieee::Half::from_bits(bits.into());
ctor = F16Range(value, value, RangeEnd::Included);
fields = vec![];
@@ -548,7 +548,7 @@ pub fn lower_pat(&self, pat: &'p Pat<'tcx>) -> DeconstructedPat<'p, 'tcx> {
}
ty::Float(ty::FloatTy::F32) => {
use rustc_apfloat::Float;
let bits = value.try_to_scalar_int().unwrap().to_u32();
let bits = value.valtree.unwrap_leaf().to_u32();
let value = rustc_apfloat::ieee::Single::from_bits(bits.into());
ctor = F32Range(value, value, RangeEnd::Included);
fields = vec![];
@@ -556,7 +556,7 @@ pub fn lower_pat(&self, pat: &'p Pat<'tcx>) -> DeconstructedPat<'p, 'tcx> {
}
ty::Float(ty::FloatTy::F64) => {
use rustc_apfloat::Float;
let bits = value.try_to_scalar_int().unwrap().to_u64();
let bits = value.valtree.unwrap_leaf().to_u64();
let value = rustc_apfloat::ieee::Double::from_bits(bits.into());
ctor = F64Range(value, value, RangeEnd::Included);
fields = vec![];
@@ -564,7 +564,7 @@ pub fn lower_pat(&self, pat: &'p Pat<'tcx>) -> DeconstructedPat<'p, 'tcx> {
}
ty::Float(ty::FloatTy::F128) => {
use rustc_apfloat::Float;
let bits = value.try_to_scalar_int().unwrap().to_u128();
let bits = value.valtree.unwrap_leaf().to_u128();
let value = rustc_apfloat::ieee::Quad::from_bits(bits);
ctor = F128Range(value, value, RangeEnd::Included);
fields = vec![];