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authorMatthias Krüger <matthias.krueger@famsik.de>2025-01-09 14:34:41 +0100
committerGitHub <noreply@github.com>2025-01-09 14:34:41 +0100
commit8ff355aefe79a5755fdd166f4253978a47375a00 (patch)
treea31ac89a87fee80dbf1522755d1626dbbd2f4af0
parentd487294ffd4966e1ee1b788597a23e510dc63f08 (diff)
parent84c8d4f52d5be135e2dec89379cb1d0f67be648c (diff)
downloadrust-8ff355aefe79a5755fdd166f4253978a47375a00.tar.gz
rust-8ff355aefe79a5755fdd166f4253978a47375a00.zip
Rollup merge of #135195 - oli-obk:push-toyoyrupruko, r=lcnr
Make `lit_to_mir_constant` and `lit_to_const` infallible

My motivation for this change is just that it's annoying to check everywhere, especially since all but one call site was just ICEing on errors anyway right there.

They can still fail, but now just return an error constant instead of having the caller handle the error.

fixes #114317
fixes #126182
-rw-r--r--compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs34
-rw-r--r--compiler/rustc_middle/src/mir/interpret/mod.rs11
-rw-r--r--compiler/rustc_middle/src/query/erase.rs9
-rw-r--r--compiler/rustc_middle/src/query/mod.rs4
-rw-r--r--compiler/rustc_mir_build/src/builder/expr/as_constant.rs52
-rw-r--r--compiler/rustc_mir_build/src/thir/constant.rs22
-rw-r--r--compiler/rustc_mir_build/src/thir/pattern/mod.rs9
-rw-r--r--compiler/rustc_ty_utils/src/consts.rs10
-rw-r--r--tests/crashes/114317.rs6
-rw-r--r--tests/crashes/126182.rs10
-rw-r--r--tests/ui/const-generics/generic_const_exprs/lit_type_mismatch.rs22
-rw-r--r--tests/ui/const-generics/generic_const_exprs/lit_type_mismatch.stderr21
-rw-r--r--tests/ui/const-generics/min_const_generics/invalid-patterns.32bit.stderr48
-rw-r--r--tests/ui/const-generics/min_const_generics/invalid-patterns.64bit.stderr48
-rw-r--r--tests/ui/repeat-expr/repeat_count.stderr12
15 files changed, 143 insertions, 175 deletions
diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs
index 0a41dad0dd8..cb90fff782f 100644
--- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs
+++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs
@@ -35,7 +35,7 @@ use rustc_hir::{self as hir, AnonConst, GenericArg, GenericArgs, HirId};
 use rustc_infer::infer::{InferCtxt, TyCtxtInferExt};
 use rustc_infer::traits::ObligationCause;
 use rustc_middle::middle::stability::AllowUnstable;
-use rustc_middle::mir::interpret::{LitToConstError, LitToConstInput};
+use rustc_middle::mir::interpret::LitToConstInput;
 use rustc_middle::ty::fold::fold_regions;
 use rustc_middle::ty::print::PrintPolyTraitRefExt as _;
 use rustc_middle::ty::{
@@ -2262,25 +2262,11 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ {
             _ => None,
         };
 
-        if let Some(lit_input) = lit_input {
-            // If an error occurred, ignore that it's a literal and leave reporting the error up to
-            // mir.
-            match tcx.at(expr.span).lit_to_const(lit_input) {
-                Ok(c) => return Some(c),
-                Err(_) if lit_input.ty.has_aliases() => {
-                    // allow the `ty` to be an alias type, though we cannot handle it here
-                    return None;
-                }
-                Err(e) => {
-                    tcx.dcx().span_delayed_bug(
-                        expr.span,
-                        format!("try_lower_anon_const_lit: couldn't lit_to_const {e:?}"),
-                    );
-                }
-            }
-        }
-
-        None
+        lit_input
+            // Allow the `ty` to be an alias type, though we cannot handle it here, we just go through
+            // the more expensive anon const code path.
+            .filter(|l| !l.ty.has_aliases())
+            .map(|l| tcx.at(expr.span).lit_to_const(l))
     }
 
     fn lower_delegation_ty(&self, idx: hir::InferDelegationKind) -> Ty<'tcx> {
@@ -2454,13 +2440,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ {
                                 hir::PatExprKind::Lit { lit, negated } => {
                                     let lit_input =
                                         LitToConstInput { lit: &lit.node, ty, neg: negated };
-                                    let ct = match tcx.lit_to_const(lit_input) {
-                                        Ok(c) => c,
-                                        Err(LitToConstError::Reported(err)) => {
-                                            ty::Const::new_error(tcx, err)
-                                        }
-                                        Err(LitToConstError::TypeError) => todo!(),
-                                    };
+                                    let ct = tcx.lit_to_const(lit_input);
                                     (ct, ty)
                                 }
 
diff --git a/compiler/rustc_middle/src/mir/interpret/mod.rs b/compiler/rustc_middle/src/mir/interpret/mod.rs
index 8d73c9e76de..b88137544bc 100644
--- a/compiler/rustc_middle/src/mir/interpret/mod.rs
+++ b/compiler/rustc_middle/src/mir/interpret/mod.rs
@@ -16,7 +16,6 @@ use rustc_abi::{AddressSpace, Align, Endian, HasDataLayout, Size};
 use rustc_ast::{LitKind, Mutability};
 use rustc_data_structures::fx::FxHashMap;
 use rustc_data_structures::sync::Lock;
-use rustc_errors::ErrorGuaranteed;
 use rustc_hir::def::DefKind;
 use rustc_hir::def_id::{DefId, LocalDefId};
 use rustc_macros::{HashStable, TyDecodable, TyEncodable, TypeFoldable, TypeVisitable};
@@ -84,16 +83,6 @@ pub struct LitToConstInput<'tcx> {
     pub neg: bool,
 }
 
-/// Error type for `tcx.lit_to_const`.
-#[derive(Copy, Clone, Debug, Eq, PartialEq, HashStable)]
-pub enum LitToConstError {
-    /// The literal's inferred type did not match the expected `ty` in the input.
-    /// This is used for graceful error handling (`span_delayed_bug`) in
-    /// type checking (`Const::from_anon_const`).
-    TypeError,
-    Reported(ErrorGuaranteed),
-}
-
 #[derive(Copy, Clone, Eq, Hash, Ord, PartialEq, PartialOrd)]
 pub struct AllocId(pub NonZero<u64>);
 
diff --git a/compiler/rustc_middle/src/query/erase.rs b/compiler/rustc_middle/src/query/erase.rs
index b72c0e776fe..1676afb4b6e 100644
--- a/compiler/rustc_middle/src/query/erase.rs
+++ b/compiler/rustc_middle/src/query/erase.rs
@@ -141,14 +141,6 @@ impl EraseType for Result<rustc_abi::TyAndLayout<'_, Ty<'_>>, &ty::layout::Layou
     >()];
 }
 
-impl EraseType for Result<ty::Const<'_>, mir::interpret::LitToConstError> {
-    type Result = [u8; size_of::<Result<ty::Const<'static>, mir::interpret::LitToConstError>>()];
-}
-
-impl EraseType for Result<mir::Const<'_>, mir::interpret::LitToConstError> {
-    type Result = [u8; size_of::<Result<mir::Const<'static>, mir::interpret::LitToConstError>>()];
-}
-
 impl EraseType for Result<mir::ConstAlloc<'_>, mir::interpret::ErrorHandled> {
     type Result = [u8; size_of::<Result<mir::ConstAlloc<'static>, mir::interpret::ErrorHandled>>()];
 }
@@ -296,7 +288,6 @@ trivial! {
     rustc_middle::mir::interpret::AllocId,
     rustc_middle::mir::interpret::CtfeProvenance,
     rustc_middle::mir::interpret::ErrorHandled,
-    rustc_middle::mir::interpret::LitToConstError,
     rustc_middle::thir::ExprId,
     rustc_middle::traits::CodegenObligationError,
     rustc_middle::traits::EvaluationResult,
diff --git a/compiler/rustc_middle/src/query/mod.rs b/compiler/rustc_middle/src/query/mod.rs
index 95995b956cd..283675573d4 100644
--- a/compiler/rustc_middle/src/query/mod.rs
+++ b/compiler/rustc_middle/src/query/mod.rs
@@ -57,7 +57,7 @@ use crate::middle::resolve_bound_vars::{ObjectLifetimeDefault, ResolveBoundVars,
 use crate::middle::stability::{self, DeprecationEntry};
 use crate::mir::interpret::{
     EvalStaticInitializerRawResult, EvalToAllocationRawResult, EvalToConstValueResult,
-    EvalToValTreeResult, GlobalId, LitToConstError, LitToConstInput,
+    EvalToValTreeResult, GlobalId, LitToConstInput,
 };
 use crate::mir::mono::{CodegenUnit, CollectionMode, MonoItem};
 use crate::query::erase::{Erase, erase, restore};
@@ -1268,7 +1268,7 @@ rustc_queries! {
     // FIXME get rid of this with valtrees
     query lit_to_const(
         key: LitToConstInput<'tcx>
-    ) -> Result<ty::Const<'tcx>, LitToConstError> {
+    ) -> ty::Const<'tcx> {
         desc { "converting literal to const" }
     }
 
diff --git a/compiler/rustc_mir_build/src/builder/expr/as_constant.rs b/compiler/rustc_mir_build/src/builder/expr/as_constant.rs
index 177c1e33a83..e4e452aff75 100644
--- a/compiler/rustc_mir_build/src/builder/expr/as_constant.rs
+++ b/compiler/rustc_mir_build/src/builder/expr/as_constant.rs
@@ -3,13 +3,12 @@
 use rustc_abi::Size;
 use rustc_ast as ast;
 use rustc_hir::LangItem;
-use rustc_middle::mir::interpret::{
-    Allocation, CTFE_ALLOC_SALT, LitToConstError, LitToConstInput, Scalar,
-};
+use rustc_middle::mir::interpret::{Allocation, CTFE_ALLOC_SALT, LitToConstInput, Scalar};
 use rustc_middle::mir::*;
 use rustc_middle::thir::*;
 use rustc_middle::ty::{
-    self, CanonicalUserType, CanonicalUserTypeAnnotation, Ty, TyCtxt, UserTypeAnnotationIndex,
+    self, CanonicalUserType, CanonicalUserTypeAnnotation, Ty, TyCtxt, TypeVisitableExt as _,
+    UserTypeAnnotationIndex,
 };
 use rustc_middle::{bug, mir, span_bug};
 use tracing::{instrument, trace};
@@ -50,16 +49,7 @@ pub(crate) fn as_constant_inner<'tcx>(
     let Expr { ty, temp_lifetime: _, span, ref kind } = *expr;
     match *kind {
         ExprKind::Literal { lit, neg } => {
-            let const_ = match lit_to_mir_constant(tcx, LitToConstInput { lit: &lit.node, ty, neg })
-            {
-                Ok(c) => c,
-                Err(LitToConstError::Reported(guar)) => {
-                    Const::Ty(Ty::new_error(tcx, guar), ty::Const::new_error(tcx, guar))
-                }
-                Err(LitToConstError::TypeError) => {
-                    bug!("encountered type error in `lit_to_mir_constant`")
-                }
-            };
+            let const_ = lit_to_mir_constant(tcx, LitToConstInput { lit: &lit.node, ty, neg });
 
             ConstOperand { span, user_ty: None, const_ }
         }
@@ -108,11 +98,13 @@ pub(crate) fn as_constant_inner<'tcx>(
 }
 
 #[instrument(skip(tcx, lit_input))]
-fn lit_to_mir_constant<'tcx>(
-    tcx: TyCtxt<'tcx>,
-    lit_input: LitToConstInput<'tcx>,
-) -> Result<Const<'tcx>, LitToConstError> {
+fn lit_to_mir_constant<'tcx>(tcx: TyCtxt<'tcx>, lit_input: LitToConstInput<'tcx>) -> Const<'tcx> {
     let LitToConstInput { lit, ty, neg } = lit_input;
+
+    if let Err(guar) = ty.error_reported() {
+        return Const::Ty(Ty::new_error(tcx, guar), ty::Const::new_error(tcx, guar));
+    }
+
     let trunc = |n| {
         let width = match tcx.layout_of(ty::TypingEnv::fully_monomorphized().as_query_input(ty)) {
             Ok(layout) => layout.size,
@@ -123,7 +115,7 @@ fn lit_to_mir_constant<'tcx>(
         trace!("trunc {} with size {} and shift {}", n, width.bits(), 128 - width.bits());
         let result = width.truncate(n);
         trace!("trunc result: {}", result);
-        Ok(ConstValue::Scalar(Scalar::from_uint(result, width)))
+        ConstValue::Scalar(Scalar::from_uint(result, width))
     };
 
     let value = match (lit, ty.kind()) {
@@ -154,20 +146,18 @@ fn lit_to_mir_constant<'tcx>(
             ConstValue::Scalar(Scalar::from_uint(*n, Size::from_bytes(1)))
         }
         (ast::LitKind::Int(n, _), ty::Uint(_)) | (ast::LitKind::Int(n, _), ty::Int(_)) => {
-            trunc(if neg { (n.get() as i128).overflowing_neg().0 as u128 } else { n.get() })?
-        }
-        (ast::LitKind::Float(n, _), ty::Float(fty)) => parse_float_into_constval(*n, *fty, neg)
-            .ok_or_else(|| {
-                LitToConstError::Reported(
-                    tcx.dcx()
-                        .delayed_bug(format!("couldn't parse float literal: {:?}", lit_input.lit)),
-                )
-            })?,
+            trunc(if neg { (n.get() as i128).overflowing_neg().0 as u128 } else { n.get() })
+        }
+        (ast::LitKind::Float(n, _), ty::Float(fty)) => {
+            parse_float_into_constval(*n, *fty, neg).unwrap()
+        }
         (ast::LitKind::Bool(b), ty::Bool) => ConstValue::Scalar(Scalar::from_bool(*b)),
         (ast::LitKind::Char(c), ty::Char) => ConstValue::Scalar(Scalar::from_char(*c)),
-        (ast::LitKind::Err(guar), _) => return Err(LitToConstError::Reported(*guar)),
-        _ => return Err(LitToConstError::TypeError),
+        (ast::LitKind::Err(guar), _) => {
+            return Const::Ty(Ty::new_error(tcx, *guar), ty::Const::new_error(tcx, *guar));
+        }
+        _ => bug!("invalid lit/ty combination in `lit_to_mir_constant`: {lit:?}: {ty:?}"),
     };
 
-    Ok(Const::Val(value, ty))
+    Const::Val(value, ty)
 }
diff --git a/compiler/rustc_mir_build/src/thir/constant.rs b/compiler/rustc_mir_build/src/thir/constant.rs
index ce1c635d1b9..49db522cf0e 100644
--- a/compiler/rustc_mir_build/src/thir/constant.rs
+++ b/compiler/rustc_mir_build/src/thir/constant.rs
@@ -1,7 +1,7 @@
 use rustc_ast as ast;
 use rustc_hir::LangItem;
 use rustc_middle::bug;
-use rustc_middle::mir::interpret::{LitToConstError, LitToConstInput};
+use rustc_middle::mir::interpret::LitToConstInput;
 use rustc_middle::ty::{self, ScalarInt, TyCtxt, TypeVisitableExt as _};
 use tracing::trace;
 
@@ -10,11 +10,11 @@ use crate::builder::parse_float_into_scalar;
 pub(crate) fn lit_to_const<'tcx>(
     tcx: TyCtxt<'tcx>,
     lit_input: LitToConstInput<'tcx>,
-) -> Result<ty::Const<'tcx>, LitToConstError> {
+) -> ty::Const<'tcx> {
     let LitToConstInput { lit, ty, neg } = lit_input;
 
     if let Err(guar) = ty.error_reported() {
-        return Ok(ty::Const::new_error(tcx, guar));
+        return ty::Const::new_error(tcx, guar);
     }
 
     let trunc = |n| {
@@ -28,8 +28,8 @@ pub(crate) fn lit_to_const<'tcx>(
         let result = width.truncate(n);
         trace!("trunc result: {}", result);
 
-        Ok(ScalarInt::try_from_uint(result, width)
-            .unwrap_or_else(|| bug!("expected to create ScalarInt from uint {:?}", result)))
+        ScalarInt::try_from_uint(result, width)
+            .unwrap_or_else(|| bug!("expected to create ScalarInt from uint {:?}", result))
     };
 
     let valtree = match (lit, ty.kind()) {
@@ -57,20 +57,20 @@ pub(crate) fn lit_to_const<'tcx>(
         }
         (ast::LitKind::Int(n, _), ty::Uint(_)) | (ast::LitKind::Int(n, _), ty::Int(_)) => {
             let scalar_int =
-                trunc(if neg { (n.get() as i128).overflowing_neg().0 as u128 } else { n.get() })?;
+                trunc(if neg { (n.get() as i128).overflowing_neg().0 as u128 } else { n.get() });
             ty::ValTree::from_scalar_int(scalar_int)
         }
         (ast::LitKind::Bool(b), ty::Bool) => ty::ValTree::from_scalar_int((*b).into()),
         (ast::LitKind::Float(n, _), ty::Float(fty)) => {
-            let bits = parse_float_into_scalar(*n, *fty, neg).ok_or_else(|| {
+            let bits = parse_float_into_scalar(*n, *fty, neg).unwrap_or_else(|| {
                 tcx.dcx().bug(format!("couldn't parse float literal: {:?}", lit_input.lit))
-            })?;
+            });
             ty::ValTree::from_scalar_int(bits)
         }
         (ast::LitKind::Char(c), ty::Char) => ty::ValTree::from_scalar_int((*c).into()),
-        (ast::LitKind::Err(guar), _) => return Err(LitToConstError::Reported(*guar)),
-        _ => return Err(LitToConstError::TypeError),
+        (ast::LitKind::Err(guar), _) => return ty::Const::new_error(tcx, *guar),
+        _ => return ty::Const::new_misc_error(tcx),
     };
 
-    Ok(ty::Const::new_value(tcx, valtree, ty))
+    ty::Const::new_value(tcx, valtree, ty)
 }
diff --git a/compiler/rustc_mir_build/src/thir/pattern/mod.rs b/compiler/rustc_mir_build/src/thir/pattern/mod.rs
index 242b62dfa8d..44b038bb5fa 100644
--- a/compiler/rustc_mir_build/src/thir/pattern/mod.rs
+++ b/compiler/rustc_mir_build/src/thir/pattern/mod.rs
@@ -13,7 +13,7 @@ use rustc_hir::pat_util::EnumerateAndAdjustIterator;
 use rustc_hir::{self as hir, ByRef, Mutability, RangeEnd};
 use rustc_index::Idx;
 use rustc_lint as lint;
-use rustc_middle::mir::interpret::{LitToConstError, LitToConstInput};
+use rustc_middle::mir::interpret::LitToConstInput;
 use rustc_middle::thir::{
     Ascription, FieldPat, LocalVarId, Pat, PatKind, PatRange, PatRangeBoundary,
 };
@@ -669,11 +669,8 @@ impl<'a, 'tcx> PatCtxt<'a, 'tcx> {
 
         let ct_ty = self.typeck_results.node_type(expr.hir_id);
         let lit_input = LitToConstInput { lit: &lit.node, ty: ct_ty, neg };
-        match self.tcx.at(expr.span).lit_to_const(lit_input) {
-            Ok(constant) => self.const_to_pat(constant, ct_ty, expr.hir_id, lit.span).kind,
-            Err(LitToConstError::Reported(e)) => PatKind::Error(e),
-            Err(LitToConstError::TypeError) => bug!("lower_lit: had type error"),
-        }
+        let constant = self.tcx.at(expr.span).lit_to_const(lit_input);
+        self.const_to_pat(constant, ct_ty, expr.hir_id, lit.span).kind
     }
 }
 
diff --git a/compiler/rustc_ty_utils/src/consts.rs b/compiler/rustc_ty_utils/src/consts.rs
index 637e239a570..51a7c976f60 100644
--- a/compiler/rustc_ty_utils/src/consts.rs
+++ b/compiler/rustc_ty_utils/src/consts.rs
@@ -4,7 +4,7 @@ use rustc_abi::{FIRST_VARIANT, VariantIdx};
 use rustc_errors::ErrorGuaranteed;
 use rustc_hir::def::DefKind;
 use rustc_hir::def_id::LocalDefId;
-use rustc_middle::mir::interpret::{LitToConstError, LitToConstInput};
+use rustc_middle::mir::interpret::LitToConstInput;
 use rustc_middle::query::Providers;
 use rustc_middle::thir::visit;
 use rustc_middle::thir::visit::Visitor;
@@ -118,13 +118,7 @@ fn recurse_build<'tcx>(
         }
         &ExprKind::Literal { lit, neg } => {
             let sp = node.span;
-            match tcx.at(sp).lit_to_const(LitToConstInput { lit: &lit.node, ty: node.ty, neg }) {
-                Ok(c) => c,
-                Err(LitToConstError::Reported(guar)) => ty::Const::new_error(tcx, guar),
-                Err(LitToConstError::TypeError) => {
-                    bug!("encountered type error in lit_to_const")
-                }
-            }
+            tcx.at(sp).lit_to_const(LitToConstInput { lit: &lit.node, ty: node.ty, neg })
         }
         &ExprKind::NonHirLiteral { lit, user_ty: _ } => {
             let val = ty::ValTree::from_scalar_int(lit);
diff --git a/tests/crashes/114317.rs b/tests/crashes/114317.rs
deleted file mode 100644
index 09fd2beeba8..00000000000
--- a/tests/crashes/114317.rs
+++ /dev/null
@@ -1,6 +0,0 @@
-//@ known-bug: #114317
-#![feature(generic_const_exprs)]
-
-struct A<const B: str = 1, C>;
-
-fn main() {}
diff --git a/tests/crashes/126182.rs b/tests/crashes/126182.rs
deleted file mode 100644
index 2219a6cb5fa..00000000000
--- a/tests/crashes/126182.rs
+++ /dev/null
@@ -1,10 +0,0 @@
-//@ known-bug: rust-lang/rust#126182
-
-#![feature(generic_const_exprs)]
-#![allow(incomplete_features)]
-
-struct Cond<const B: bool>;
-
-struct Thing<T = Cond<0>>(T);
-
-impl Thing {}
diff --git a/tests/ui/const-generics/generic_const_exprs/lit_type_mismatch.rs b/tests/ui/const-generics/generic_const_exprs/lit_type_mismatch.rs
new file mode 100644
index 00000000000..1ed0965e1bd
--- /dev/null
+++ b/tests/ui/const-generics/generic_const_exprs/lit_type_mismatch.rs
@@ -0,0 +1,22 @@
+//! ICE regression test for #114317 and #126182
+//! Type mismatches of literals cause errors int typeck,
+//! but those errors cannot be propagated to the various
+//! `lit_to_const` call sites. Now `lit_to_const` just delays
+//! a bug and produces an error constant on its own.
+
+#![feature(adt_const_params)]
+#![feature(generic_const_exprs)]
+#![allow(incomplete_features)]
+
+struct A<const B: () = 1, C>(C);
+//~^ ERROR: generic parameters with a default must be trailing
+//~| ERROR: mismatched types
+
+struct Cond<const B: bool>;
+
+struct Thing<T = Cond<0>>(T);
+//~^ ERROR: mismatched types
+
+impl Thing {}
+
+fn main() {}
diff --git a/tests/ui/const-generics/generic_const_exprs/lit_type_mismatch.stderr b/tests/ui/const-generics/generic_const_exprs/lit_type_mismatch.stderr
new file mode 100644
index 00000000000..e4613e498b2
--- /dev/null
+++ b/tests/ui/const-generics/generic_const_exprs/lit_type_mismatch.stderr
@@ -0,0 +1,21 @@
+error: generic parameters with a default must be trailing
+  --> $DIR/lit_type_mismatch.rs:11:16
+   |
+LL | struct A<const B: () = 1, C>(C);
+   |                ^
+
+error[E0308]: mismatched types
+  --> $DIR/lit_type_mismatch.rs:11:24
+   |
+LL | struct A<const B: () = 1, C>(C);
+   |                        ^ expected `()`, found integer
+
+error[E0308]: mismatched types
+  --> $DIR/lit_type_mismatch.rs:17:23
+   |
+LL | struct Thing<T = Cond<0>>(T);
+   |                       ^ expected `bool`, found integer
+
+error: aborting due to 3 previous errors
+
+For more information about this error, try `rustc --explain E0308`.
diff --git a/tests/ui/const-generics/min_const_generics/invalid-patterns.32bit.stderr b/tests/ui/const-generics/min_const_generics/invalid-patterns.32bit.stderr
index be92429e3ab..11a824ba73b 100644
--- a/tests/ui/const-generics/min_const_generics/invalid-patterns.32bit.stderr
+++ b/tests/ui/const-generics/min_const_generics/invalid-patterns.32bit.stderr
@@ -1,27 +1,3 @@
-error[E0308]: mismatched types
-  --> $DIR/invalid-patterns.rs:29:21
-   |
-LL |   get_flag::<false, 0xFF>();
-   |                     ^^^^ expected `char`, found `u8`
-
-error[E0308]: mismatched types
-  --> $DIR/invalid-patterns.rs:31:14
-   |
-LL |   get_flag::<7, 'c'>();
-   |              ^ expected `bool`, found integer
-
-error[E0308]: mismatched types
-  --> $DIR/invalid-patterns.rs:33:14
-   |
-LL |   get_flag::<42, 0x5ad>();
-   |              ^^ expected `bool`, found integer
-
-error[E0308]: mismatched types
-  --> $DIR/invalid-patterns.rs:33:18
-   |
-LL |   get_flag::<42, 0x5ad>();
-   |                  ^^^^^ expected `char`, found `u8`
-
 error[E0080]: evaluation of constant value failed
   --> $DIR/invalid-patterns.rs:38:32
    |
@@ -56,6 +32,30 @@ error[E0080]: evaluation of constant value failed
 LL |   get_flag::<{ unsafe { bool_raw.boolean } }, { unsafe { char_raw.character } }>();
    |                                                          ^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory
 
+error[E0308]: mismatched types
+  --> $DIR/invalid-patterns.rs:29:21
+   |
+LL |   get_flag::<false, 0xFF>();
+   |                     ^^^^ expected `char`, found `u8`
+
+error[E0308]: mismatched types
+  --> $DIR/invalid-patterns.rs:31:14
+   |
+LL |   get_flag::<7, 'c'>();
+   |              ^ expected `bool`, found integer
+
+error[E0308]: mismatched types
+  --> $DIR/invalid-patterns.rs:33:14
+   |
+LL |   get_flag::<42, 0x5ad>();
+   |              ^^ expected `bool`, found integer
+
+error[E0308]: mismatched types
+  --> $DIR/invalid-patterns.rs:33:18
+   |
+LL |   get_flag::<42, 0x5ad>();
+   |                  ^^^^^ expected `char`, found `u8`
+
 error: aborting due to 8 previous errors
 
 Some errors have detailed explanations: E0080, E0308.
diff --git a/tests/ui/const-generics/min_const_generics/invalid-patterns.64bit.stderr b/tests/ui/const-generics/min_const_generics/invalid-patterns.64bit.stderr
index be92429e3ab..11a824ba73b 100644
--- a/tests/ui/const-generics/min_const_generics/invalid-patterns.64bit.stderr
+++ b/tests/ui/const-generics/min_const_generics/invalid-patterns.64bit.stderr
@@ -1,27 +1,3 @@
-error[E0308]: mismatched types
-  --> $DIR/invalid-patterns.rs:29:21
-   |
-LL |   get_flag::<false, 0xFF>();
-   |                     ^^^^ expected `char`, found `u8`
-
-error[E0308]: mismatched types
-  --> $DIR/invalid-patterns.rs:31:14
-   |
-LL |   get_flag::<7, 'c'>();
-   |              ^ expected `bool`, found integer
-
-error[E0308]: mismatched types
-  --> $DIR/invalid-patterns.rs:33:14
-   |
-LL |   get_flag::<42, 0x5ad>();
-   |              ^^ expected `bool`, found integer
-
-error[E0308]: mismatched types
-  --> $DIR/invalid-patterns.rs:33:18
-   |
-LL |   get_flag::<42, 0x5ad>();
-   |                  ^^^^^ expected `char`, found `u8`
-
 error[E0080]: evaluation of constant value failed
   --> $DIR/invalid-patterns.rs:38:32
    |
@@ -56,6 +32,30 @@ error[E0080]: evaluation of constant value failed
 LL |   get_flag::<{ unsafe { bool_raw.boolean } }, { unsafe { char_raw.character } }>();
    |                                                          ^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory
 
+error[E0308]: mismatched types
+  --> $DIR/invalid-patterns.rs:29:21
+   |
+LL |   get_flag::<false, 0xFF>();
+   |                     ^^^^ expected `char`, found `u8`
+
+error[E0308]: mismatched types
+  --> $DIR/invalid-patterns.rs:31:14
+   |
+LL |   get_flag::<7, 'c'>();
+   |              ^ expected `bool`, found integer
+
+error[E0308]: mismatched types
+  --> $DIR/invalid-patterns.rs:33:14
+   |
+LL |   get_flag::<42, 0x5ad>();
+   |              ^^ expected `bool`, found integer
+
+error[E0308]: mismatched types
+  --> $DIR/invalid-patterns.rs:33:18
+   |
+LL |   get_flag::<42, 0x5ad>();
+   |                  ^^^^^ expected `char`, found `u8`
+
 error: aborting due to 8 previous errors
 
 Some errors have detailed explanations: E0080, E0308.
diff --git a/tests/ui/repeat-expr/repeat_count.stderr b/tests/ui/repeat-expr/repeat_count.stderr
index 350ac287507..c4aebfb0e20 100644
--- a/tests/ui/repeat-expr/repeat_count.stderr
+++ b/tests/ui/repeat-expr/repeat_count.stderr
@@ -16,6 +16,12 @@ LL |     let b = [0; ()];
    |                 ^^ expected `usize`, found `()`
 
 error[E0308]: mismatched types
+  --> $DIR/repeat_count.rs:31:17
+   |
+LL |     let g = [0; G { g: () }];
+   |                 ^^^^^^^^^^^ expected `usize`, found `G`
+
+error[E0308]: mismatched types
   --> $DIR/repeat_count.rs:10:17
    |
 LL |     let c = [0; true];
@@ -34,12 +40,6 @@ LL |     let e = [0; "foo"];
    |                 ^^^^^ expected `usize`, found `&str`
 
 error[E0308]: mismatched types
-  --> $DIR/repeat_count.rs:31:17
-   |
-LL |     let g = [0; G { g: () }];
-   |                 ^^^^^^^^^^^ expected `usize`, found `G`
-
-error[E0308]: mismatched types
   --> $DIR/repeat_count.rs:19:17
    |
 LL |     let f = [0; -4_isize];