Rollup of 6 pull requests

Cargo.lock

@@ -1505,9 +1505,9 @@ dependencies = [
 
 [[package]]
 name = "gsgdt"
-version = "0.1.3"
+version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cb958139bb971f37d2f5423436f137768f88b9c616b4c21d4f634dd129508d60"
+checksum = "a0d876ce7262df96262a2a19531da6ff9a86048224d49580a585fc5c04617825"
 dependencies = [
  "serde",
 ]

compiler/rustc_codegen_llvm/src/debuginfo/mod.rs

@@ -160,17 +160,17 @@ impl<'ll> DebugInfoBuilderMethods for Builder<'_, 'll, '_> {
         // the values should match the ones in the DWARF standard anyway.
         let op_deref = || unsafe { llvm::LLVMRustDIBuilderCreateOpDeref() };
         let op_plus_uconst = || unsafe { llvm::LLVMRustDIBuilderCreateOpPlusUconst() };
-        let mut addr_ops = SmallVec::<[_; 8]>::new();
+        let mut addr_ops = SmallVec::<[u64; 8]>::new();
 
         if direct_offset.bytes() > 0 {
             addr_ops.push(op_plus_uconst());
-            addr_ops.push(direct_offset.bytes() as i64);
+            addr_ops.push(direct_offset.bytes() as u64);
         }
         for &offset in indirect_offsets {
             addr_ops.push(op_deref());
             if offset.bytes() > 0 {
                 addr_ops.push(op_plus_uconst());
-                addr_ops.push(offset.bytes() as i64);
+                addr_ops.push(offset.bytes() as u64);
             }
         }
 

compiler/rustc_codegen_llvm/src/llvm/ffi.rs

@@ -2108,7 +2108,7 @@ extern "C" {
         Builder: &DIBuilder<'a>,
         Val: &'a Value,
         VarInfo: &'a DIVariable,
-        AddrOps: *const i64,
+        AddrOps: *const u64,
         AddrOpsCount: c_uint,
         DL: &'a DILocation,
         InsertAtEnd: &'a BasicBlock,
@@ -2199,8 +2199,8 @@ extern "C" {
         Scope: &'a DIScope,
         InlinedAt: Option<&'a DILocation>,
     ) -> &'a DILocation;
-    pub fn LLVMRustDIBuilderCreateOpDeref() -> i64;
-    pub fn LLVMRustDIBuilderCreateOpPlusUconst() -> i64;
+    pub fn LLVMRustDIBuilderCreateOpDeref() -> u64;
+    pub fn LLVMRustDIBuilderCreateOpPlusUconst() -> u64;
 
     #[allow(improper_ctypes)]
     pub fn LLVMRustWriteTypeToString(Type: &Type, s: &RustString);

compiler/rustc_codegen_ssa/src/back/metadata.rs

@@ -6,8 +6,8 @@ use std::path::Path;
 
 use object::write::{self, StandardSegment, Symbol, SymbolSection};
 use object::{
-    elf, Architecture, BinaryFormat, Endianness, FileFlags, Object, ObjectSection, SectionFlags,
-    SectionKind, SymbolFlags, SymbolKind, SymbolScope,
+    elf, pe, Architecture, BinaryFormat, Endianness, FileFlags, Object, ObjectSection,
+    SectionFlags, SectionKind, SymbolFlags, SymbolKind, SymbolScope,
 };
 
 use snap::write::FrameEncoder;
@@ -216,13 +216,12 @@ pub fn create_rmeta_file(sess: &Session, metadata: &[u8]) -> Vec<u8> {
     );
     match file.format() {
         BinaryFormat::Coff => {
-            const IMAGE_SCN_LNK_REMOVE: u32 = 0;
             file.section_mut(section).flags =
-                SectionFlags::Coff { characteristics: IMAGE_SCN_LNK_REMOVE };
+                SectionFlags::Coff { characteristics: pe::IMAGE_SCN_LNK_REMOVE };
         }
         BinaryFormat::Elf => {
-            const SHF_EXCLUDE: u64 = 0x80000000;
-            file.section_mut(section).flags = SectionFlags::Elf { sh_flags: SHF_EXCLUDE };
+            file.section_mut(section).flags =
+                SectionFlags::Elf { sh_flags: elf::SHF_EXCLUDE as u64 };
         }
         _ => {}
     };

compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp

@@ -979,11 +979,11 @@ LLVMRustDIBuilderGetOrCreateArray(LLVMRustDIBuilderRef Builder,
 
 extern "C" LLVMValueRef LLVMRustDIBuilderInsertDeclareAtEnd(
     LLVMRustDIBuilderRef Builder, LLVMValueRef V, LLVMMetadataRef VarInfo,
-    int64_t *AddrOps, unsigned AddrOpsCount, LLVMMetadataRef DL,
+    uint64_t *AddrOps, unsigned AddrOpsCount, LLVMMetadataRef DL,
     LLVMBasicBlockRef InsertAtEnd) {
   return wrap(Builder->insertDeclare(
       unwrap(V), unwrap<DILocalVariable>(VarInfo),
-      Builder->createExpression(llvm::ArrayRef<int64_t>(AddrOps, AddrOpsCount)),
+      Builder->createExpression(llvm::ArrayRef<uint64_t>(AddrOps, AddrOpsCount)),
       DebugLoc(cast<MDNode>(unwrap(DL))),
       unwrap(InsertAtEnd)));
 }
@@ -1057,11 +1057,11 @@ LLVMRustDIBuilderCreateDebugLocation(unsigned Line, unsigned Column,
   return wrap(Loc);
 }
 
-extern "C" int64_t LLVMRustDIBuilderCreateOpDeref() {
+extern "C" uint64_t LLVMRustDIBuilderCreateOpDeref() {
   return dwarf::DW_OP_deref;
 }
 
-extern "C" int64_t LLVMRustDIBuilderCreateOpPlusUconst() {
+extern "C" uint64_t LLVMRustDIBuilderCreateOpPlusUconst() {
   return dwarf::DW_OP_plus_uconst;
 }
 

compiler/rustc_middle/Cargo.toml

@@ -10,7 +10,7 @@ doctest = false
 rustc_arena = { path = "../rustc_arena" }
 bitflags = "1.2.1"
 either = "1.5.0"
-gsgdt = "0.1.3"
+gsgdt = "0.1.2"
 tracing = "0.1"
 rustc-rayon = "0.3.1"
 rustc-rayon-core = "0.3.1"

compiler/rustc_middle/src/mir/generic_graph.rs

@@ -55,7 +55,7 @@ fn bb_to_graph_node(block: BasicBlock, body: &Body<'_>, dark_mode: bool) -> Node
     data.terminator().kind.fmt_head(&mut terminator_head).unwrap();
     stmts.push(terminator_head);
 
-    Node::from_list(stmts, label, title, style)
+    Node::new(stmts, label, title, style)
 }
 
 // Must match `[0-9A-Za-z_]*`. This does not appear in the rendered graph, so

library/alloc/src/alloc.rs

@@ -323,17 +323,21 @@ unsafe fn exchange_malloc(size: usize, align: usize) -> *mut u8 {
 
 #[cfg_attr(not(test), lang = "box_free")]
 #[inline]
+#[rustc_const_unstable(feature = "const_box", issue = "92521")]
 // This signature has to be the same as `Box`, otherwise an ICE will happen.
 // When an additional parameter to `Box` is added (like `A: Allocator`), this has to be added here as
 // well.
 // For example if `Box` is changed to  `struct Box<T: ?Sized, A: Allocator>(Unique<T>, A)`,
 // this function has to be changed to `fn box_free<T: ?Sized, A: Allocator>(Unique<T>, A)` as well.
-pub(crate) unsafe fn box_free<T: ?Sized, A: Allocator>(ptr: Unique<T>, alloc: A) {
+pub(crate) const unsafe fn box_free<T: ?Sized, A: ~const Allocator + ~const Drop>(
+    ptr: Unique<T>,
+    alloc: A,
+) {
     unsafe {
         let size = size_of_val(ptr.as_ref());
         let align = min_align_of_val(ptr.as_ref());
         let layout = Layout::from_size_align_unchecked(size, align);
-        alloc.deallocate(ptr.cast().into(), layout)
+        alloc.deallocate(From::from(ptr.cast()), layout)
     }
 }
 
@@ -361,13 +365,22 @@ extern "Rust" {
 /// [`set_alloc_error_hook`]: ../../std/alloc/fn.set_alloc_error_hook.html
 /// [`take_alloc_error_hook`]: ../../std/alloc/fn.take_alloc_error_hook.html
 #[stable(feature = "global_alloc", since = "1.28.0")]
+#[rustc_const_unstable(feature = "const_alloc_error", issue = "92523")]
 #[cfg(all(not(no_global_oom_handling), not(test)))]
 #[rustc_allocator_nounwind]
 #[cold]
-pub fn handle_alloc_error(layout: Layout) -> ! {
-    unsafe {
-        __rust_alloc_error_handler(layout.size(), layout.align());
+pub const fn handle_alloc_error(layout: Layout) -> ! {
+    const fn ct_error(_: Layout) -> ! {
+        panic!("allocation failed");
     }
+
+    fn rt_error(layout: Layout) -> ! {
+        unsafe {
+            __rust_alloc_error_handler(layout.size(), layout.align());
+        }
+    }
+
+    unsafe { core::intrinsics::const_eval_select((layout,), ct_error, rt_error) }
 }
 
 // For alloc test `std::alloc::handle_alloc_error` can be used directly.