Auto merge of #98730 - matthiaskrgr:rollup-2c4d4x5, r=matthiaskrgr

Rollup of 10 pull requests

Successful merges:

 - #97629 ([core] add `Exclusive` to sync)
 - #98503 (fix data race in thread::scope)
 - #98670 (llvm-wrapper: adapt for LLVMConstExtractValue removal)
 - #98671 (Fix source sidebar bugs)
 - #98677 (For diagnostic information of Boolean, remind it as use the type: 'bool')
 - #98684 (add test for 72793)
 - #98688 (interpret: add From<&MplaceTy> for PlaceTy)
 - #98695 (use "or pattern")
 - #98709 (Remove unneeded methods declaration for old web browsers)
 - #98717 (get rid of tidy 'unnecessarily ignored' warnings)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors

compiler/rustc_codegen_llvm/src/common.rs

@@ -109,8 +109,7 @@ impl<'ll> CodegenCx<'ll, '_> {
     pub fn const_get_elt(&self, v: &'ll Value, idx: u64) -> &'ll Value {
         unsafe {
             assert_eq!(idx as c_uint as u64, idx);
-            let us = &[idx as c_uint];
-            let r = llvm::LLVMConstExtractValue(v, us.as_ptr(), us.len() as c_uint);
+            let r = llvm::LLVMGetAggregateElement(v, idx as c_uint).unwrap();
 
             debug!("const_get_elt(v={:?}, idx={}, r={:?})", v, idx, r);
 

compiler/rustc_codegen_llvm/src/llvm/ffi.rs

@@ -1134,11 +1134,7 @@ extern "C" {
     pub fn LLVMConstIntToPtr<'a>(ConstantVal: &'a Value, ToType: &'a Type) -> &'a Value;
     pub fn LLVMConstBitCast<'a>(ConstantVal: &'a Value, ToType: &'a Type) -> &'a Value;
     pub fn LLVMConstPointerCast<'a>(ConstantVal: &'a Value, ToType: &'a Type) -> &'a Value;
-    pub fn LLVMConstExtractValue(
-        AggConstant: &Value,
-        IdxList: *const c_uint,
-        NumIdx: c_uint,
-    ) -> &Value;
+    pub fn LLVMGetAggregateElement(ConstantVal: &Value, Idx: c_uint) -> Option<&Value>;
 
     // Operations on global variables, functions, and aliases (globals)
     pub fn LLVMIsDeclaration(Global: &Value) -> Bool;

compiler/rustc_const_eval/src/const_eval/valtrees.rs

@@ -346,7 +346,7 @@ fn valtree_into_mplace<'tcx>(
         ty::FnDef(_, _) => {
             ecx.write_immediate(
                 Immediate::Scalar(ScalarMaybeUninit::Scalar(Scalar::ZST)),
-                &(*place).into(),
+                &place.into(),
             )
             .unwrap();
         }
@@ -355,7 +355,7 @@ fn valtree_into_mplace<'tcx>(
             debug!("writing trivial valtree {:?} to place {:?}", scalar_int, place);
             ecx.write_immediate(
                 Immediate::Scalar(ScalarMaybeUninit::Scalar(scalar_int.into())),
-                &(*place).into(),
+                &place.into(),
             )
             .unwrap();
         }
@@ -382,7 +382,7 @@ fn valtree_into_mplace<'tcx>(
             };
             debug!(?imm);
 
-            ecx.write_immediate(imm, &(*place).into()).unwrap();
+            ecx.write_immediate(imm, &place.into()).unwrap();
         }
         ty::Adt(_, _) | ty::Tuple(_) | ty::Array(_, _) | ty::Str | ty::Slice(_) => {
             let branches = valtree.unwrap_branch();
@@ -464,11 +464,11 @@ fn valtree_into_mplace<'tcx>(
 
             if let Some(variant_idx) = variant_idx {
                 // don't forget filling the place with the discriminant of the enum
-                ecx.write_discriminant(variant_idx, &(*place).into()).unwrap();
+                ecx.write_discriminant(variant_idx, &place.into()).unwrap();
             }
 
             debug!("dump of place after writing discriminant:");
-            dump_place(ecx, (*place).into());
+            dump_place(ecx, place.into());
         }
         _ => bug!("shouldn't have created a ValTree for {:?}", ty),
     }

compiler/rustc_const_eval/src/interpret/intern.rs

@@ -195,7 +195,7 @@ impl<'rt, 'mir, 'tcx: 'mir, M: CompileTimeMachine<'mir, 'tcx, const_eval::Memory
         let tcx = self.ecx.tcx;
         let ty = mplace.layout.ty;
         if let ty::Ref(_, referenced_ty, ref_mutability) = *ty.kind() {
-            let value = self.ecx.read_immediate(&(*mplace).into())?;
+            let value = self.ecx.read_immediate(&mplace.into())?;
             let mplace = self.ecx.ref_to_mplace(&value)?;
             assert_eq!(mplace.layout.ty, referenced_ty);
             // Handle trait object vtables.

compiler/rustc_const_eval/src/interpret/operand.rs

@@ -204,6 +204,13 @@ impl<'tcx, Tag: Provenance> From<&'_ MPlaceTy<'tcx, Tag>> for OpTy<'tcx, Tag> {
     }
 }
 
+impl<'tcx, Tag: Provenance> From<&'_ mut MPlaceTy<'tcx, Tag>> for OpTy<'tcx, Tag> {
+    #[inline(always)]
+    fn from(mplace: &mut MPlaceTy<'tcx, Tag>) -> Self {
+        OpTy { op: Operand::Indirect(**mplace), layout: mplace.layout }
+    }
+}
+
 impl<'tcx, Tag: Provenance> From<ImmTy<'tcx, Tag>> for OpTy<'tcx, Tag> {
     #[inline(always)]
     fn from(val: ImmTy<'tcx, Tag>) -> Self {

compiler/rustc_const_eval/src/interpret/place.rs

@@ -118,7 +118,21 @@ impl<'tcx, Tag: Provenance> std::ops::Deref for MPlaceTy<'tcx, Tag> {
 impl<'tcx, Tag: Provenance> From<MPlaceTy<'tcx, Tag>> for PlaceTy<'tcx, Tag> {
     #[inline(always)]
     fn from(mplace: MPlaceTy<'tcx, Tag>) -> Self {
-        PlaceTy { place: Place::Ptr(mplace.mplace), layout: mplace.layout }
+        PlaceTy { place: Place::Ptr(*mplace), layout: mplace.layout }
+    }
+}
+
+impl<'tcx, Tag: Provenance> From<&'_ MPlaceTy<'tcx, Tag>> for PlaceTy<'tcx, Tag> {
+    #[inline(always)]
+    fn from(mplace: &MPlaceTy<'tcx, Tag>) -> Self {
+        PlaceTy { place: Place::Ptr(**mplace), layout: mplace.layout }
+    }
+}
+
+impl<'tcx, Tag: Provenance> From<&'_ mut MPlaceTy<'tcx, Tag>> for PlaceTy<'tcx, Tag> {
+    #[inline(always)]
+    fn from(mplace: &mut MPlaceTy<'tcx, Tag>) -> Self {
+        PlaceTy { place: Place::Ptr(**mplace), layout: mplace.layout }
     }
 }
 

compiler/rustc_const_eval/src/interpret/visitor.rs

@@ -92,7 +92,7 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> Value<'mir, 'tcx, M>
         &self,
         _ecx: &InterpCx<'mir, 'tcx, M>,
     ) -> InterpResult<'tcx, OpTy<'tcx, M::PointerTag>> {
-        Ok((*self).into())
+        Ok(self.into())
     }
 
     #[inline(always)]

compiler/rustc_errors/src/lib.rs

@@ -1447,7 +1447,7 @@ impl HandlerInner {
                 self.flags.treat_err_as_bug.map(|c| c.get()).unwrap_or(0),
             ) {
                 (1, 1) => panic!("aborting due to `-Z treat-err-as-bug=1`"),
-                (0, _) | (1, _) => {}
+                (0 | 1, _) => {}
                 (count, as_bug) => panic!(
                     "aborting after {} errors due to `-Z treat-err-as-bug={}`",
                     count, as_bug,

compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp

@@ -1865,3 +1865,11 @@ extern "C" void LLVMRustGetMangledName(LLVMValueRef V, RustStringRef Str) {
   GlobalValue *GV = unwrap<GlobalValue>(V);
   Mangler().getNameWithPrefix(OS, GV, true);
 }
+
+// LLVMGetAggregateElement was added in LLVM 15. For earlier LLVM versions just
+// use its implementation.
+#if LLVM_VERSION_LT(15, 0)
+extern "C" LLVMValueRef LLVMGetAggregateElement(LLVMValueRef C, unsigned Idx) {
+    return wrap(unwrap<Constant>(C)->getAggregateElement(Idx));
+}
+#endif

compiler/rustc_resolve/src/late/diagnostics.rs

@@ -1503,6 +1503,8 @@ impl<'a: 'ast, 'ast> LateResolutionVisitor<'a, '_, 'ast> {
         Some(match name {
             "byte" => sym::u8, // In Java, bytes are signed, but in practice one almost always wants unsigned bytes.
             "short" => sym::i16,
+            "Bool" => sym::bool,
+            "Boolean" => sym::bool,
             "boolean" => sym::bool,
             "int" => sym::i32,
             "long" => sym::i64,