4 files changed, 7 insertions, 51 deletions
diff --git a/compiler/rustc_codegen_gcc/src/asm.rs b/compiler/rustc_codegen_gcc/src/asm.rs
index 6a3b94a0d70..10edcf36955 100644
--- a/compiler/rustc_codegen_gcc/src/asm.rs
+++ b/compiler/rustc_codegen_gcc/src/asm.rs
@@ -568,7 +568,6 @@ fn reg_to_gcc(reg: InlineAsmRegOrRegClass) -> ConstraintOrRegister {
             InlineAsmRegClass::AArch64(AArch64InlineAsmRegClass::vreg) => unimplemented!(),
             InlineAsmRegClass::AArch64(AArch64InlineAsmRegClass::vreg_low16) => unimplemented!(),
             InlineAsmRegClass::Arm(ArmInlineAsmRegClass::reg) => unimplemented!(),
-            InlineAsmRegClass::Arm(ArmInlineAsmRegClass::reg_thumb) => unimplemented!(),
             InlineAsmRegClass::Arm(ArmInlineAsmRegClass::sreg)
             | InlineAsmRegClass::Arm(ArmInlineAsmRegClass::dreg_low16)
             | InlineAsmRegClass::Arm(ArmInlineAsmRegClass::qreg_low8) => unimplemented!(),
@@ -577,6 +576,7 @@ fn reg_to_gcc(reg: InlineAsmRegOrRegClass) -> ConstraintOrRegister {
             | InlineAsmRegClass::Arm(ArmInlineAsmRegClass::qreg_low4) => unimplemented!(),
             InlineAsmRegClass::Arm(ArmInlineAsmRegClass::dreg)
             | InlineAsmRegClass::Arm(ArmInlineAsmRegClass::qreg) => unimplemented!(),
+            InlineAsmRegClass::Avr(_) => unimplemented!(),
             InlineAsmRegClass::Bpf(_) => unimplemented!(),
             InlineAsmRegClass::Hexagon(HexagonInlineAsmRegClass::reg) => unimplemented!(),
             InlineAsmRegClass::Mips(MipsInlineAsmRegClass::reg) => unimplemented!(),
@@ -627,8 +627,7 @@ fn dummy_output_type<'gcc, 'tcx>(cx: &CodegenCx<'gcc, 'tcx>, reg: InlineAsmRegCl
         | InlineAsmRegClass::AArch64(AArch64InlineAsmRegClass::vreg_low16) => {
             unimplemented!()
         }
-        InlineAsmRegClass::Arm(ArmInlineAsmRegClass::reg)
-        | InlineAsmRegClass::Arm(ArmInlineAsmRegClass::reg_thumb) => cx.type_i32(),
+        InlineAsmRegClass::Arm(ArmInlineAsmRegClass::reg)=> cx.type_i32(),
         InlineAsmRegClass::Arm(ArmInlineAsmRegClass::sreg)
         | InlineAsmRegClass::Arm(ArmInlineAsmRegClass::sreg_low16) => cx.type_f32(),
         InlineAsmRegClass::Arm(ArmInlineAsmRegClass::dreg)
@@ -639,6 +638,7 @@ fn dummy_output_type<'gcc, 'tcx>(cx: &CodegenCx<'gcc, 'tcx>, reg: InlineAsmRegCl
         | InlineAsmRegClass::Arm(ArmInlineAsmRegClass::qreg_low4) => {
             unimplemented!()
         }
+        InlineAsmRegClass::Avr(_) => unimplemented!(),
         InlineAsmRegClass::Bpf(_) => unimplemented!(),
         InlineAsmRegClass::Hexagon(HexagonInlineAsmRegClass::reg) => cx.type_i32(),
         InlineAsmRegClass::Mips(MipsInlineAsmRegClass::reg) => cx.type_i32(),
@@ -735,8 +735,7 @@ fn modifier_to_gcc(arch: InlineAsmArch, reg: InlineAsmRegClass, modifier: Option
         | InlineAsmRegClass::AArch64(AArch64InlineAsmRegClass::vreg_low16) => {
             unimplemented!()
         }
-        InlineAsmRegClass::Arm(ArmInlineAsmRegClass::reg)
-        | InlineAsmRegClass::Arm(ArmInlineAsmRegClass::reg_thumb) => unimplemented!(),
+        InlineAsmRegClass::Arm(ArmInlineAsmRegClass::reg)  => unimplemented!(),
         InlineAsmRegClass::Arm(ArmInlineAsmRegClass::sreg)
         | InlineAsmRegClass::Arm(ArmInlineAsmRegClass::sreg_low16) => unimplemented!(),
         InlineAsmRegClass::Arm(ArmInlineAsmRegClass::dreg)
@@ -747,6 +746,7 @@ fn modifier_to_gcc(arch: InlineAsmArch, reg: InlineAsmRegClass, modifier: Option
         | InlineAsmRegClass::Arm(ArmInlineAsmRegClass::qreg_low4) => {
             unimplemented!()
         }
+        InlineAsmRegClass::Avr(_) => unimplemented!(),
         InlineAsmRegClass::Bpf(_) => unimplemented!(),
         InlineAsmRegClass::Hexagon(_) => unimplemented!(),
         InlineAsmRegClass::Mips(_) => unimplemented!(),
diff --git a/compiler/rustc_codegen_gcc/src/back/write.rs b/compiler/rustc_codegen_gcc/src/back/write.rs
index c3e3847823d..4962d016152 100644
--- a/compiler/rustc_codegen_gcc/src/back/write.rs
+++ b/compiler/rustc_codegen_gcc/src/back/write.rs
@@ -32,7 +32,7 @@ pub(crate) unsafe fn codegen(cgcx: &CodegenContext<GccCodegenBackend>, _diag_han
         if config.emit_asm {
             let _timer = cgcx
                 .prof
-                .generic_activity_with_arg("LLVM_module_codegen_emit_asm", &module.name[..]);
+                .generic_activity_with_arg("LLVM_module_codegen_emit_asm", &*module.name);
             let path = cgcx.output_filenames.temp_path(OutputType::Assembly, module_name);
             context.compile_to_file(OutputKind::Assembler, path.to_str().expect("path to str"));
         }
@@ -41,7 +41,7 @@ pub(crate) unsafe fn codegen(cgcx: &CodegenContext<GccCodegenBackend>, _diag_han
             EmitObj::ObjectCode(_) => {
                 let _timer = cgcx
                     .prof
-                    .generic_activity_with_arg("LLVM_module_codegen_emit_obj", &module.name[..]);
+                    .generic_activity_with_arg("LLVM_module_codegen_emit_obj", &*module.name);
                 match &*module.name {
                     "std_example.7rcbfp3g-cgu.15" => {
                         println!("Dumping reproducer {}", module.name);
diff --git a/compiler/rustc_codegen_gcc/src/base.rs b/compiler/rustc_codegen_gcc/src/base.rs
index a3b8d328388..dee70bf7536 100644
--- a/compiler/rustc_codegen_gcc/src/base.rs
+++ b/compiler/rustc_codegen_gcc/src/base.rs
@@ -7,14 +7,12 @@ use gccjit::{
     GlobalKind,
 };
 use rustc_middle::dep_graph;
-use rustc_middle::middle::exported_symbols;
 use rustc_middle::ty::TyCtxt;
 use rustc_middle::mir::mono::Linkage;
 use rustc_codegen_ssa::{ModuleCodegen, ModuleKind};
 use rustc_codegen_ssa::base::maybe_create_entry_wrapper;
 use rustc_codegen_ssa::mono_item::MonoItemExt;
 use rustc_codegen_ssa::traits::DebugInfoMethods;
-use rustc_metadata::EncodedMetadata;
 use rustc_session::config::DebugInfo;
 use rustc_span::Symbol;
 
@@ -132,40 +130,3 @@ pub fn compile_codegen_unit<'tcx>(tcx: TyCtxt<'tcx>, cgu_name: Symbol) -> (Modul
 
     (module, cost)
 }
-
-pub fn write_compressed_metadata<'tcx>(tcx: TyCtxt<'tcx>, metadata: &EncodedMetadata, gcc_module: &mut GccContext) {
-    use snap::write::FrameEncoder;
-    use std::io::Write;
-
-    // Historical note:
-    //
-    // When using link.exe it was seen that the section name `.note.rustc`
-    // was getting shortened to `.note.ru`, and according to the PE and COFF
-    // specification:
-    //
-    // > Executable images do not use a string table and do not support
-    // > section names longer than 8 characters
-    //
-    // https://docs.microsoft.com/en-us/windows/win32/debug/pe-format
-    //
-    // As a result, we choose a slightly shorter name! As to why
-    // `.note.rustc` works on MinGW, see
-    // https://github.com/llvm/llvm-project/blob/llvmorg-12.0.0/lld/COFF/Writer.cpp#L1190-L1197
-    let section_name = if tcx.sess.target.is_like_osx { "__DATA,.rustc" } else { ".rustc" };
-
-    let context = &gcc_module.context;
-    let mut compressed = rustc_metadata::METADATA_HEADER.to_vec();
-    FrameEncoder::new(&mut compressed).write_all(&metadata.raw_data()).unwrap();
-
-    let name = exported_symbols::metadata_symbol_name(tcx);
-    let typ = context.new_array_type(None, context.new_type::<u8>(), compressed.len() as i32);
-    let global = context.new_global(None, GlobalKind::Exported, typ, name);
-    global.global_set_initializer(&compressed);
-    global.set_link_section(section_name);
-
-    // Also generate a .section directive to force no
-    // flags, at least for ELF outputs, so that the
-    // metadata doesn't get loaded into memory.
-    let directive = format!(".section {}", section_name);
-    context.add_top_level_asm(None, &directive);
-}
diff --git a/compiler/rustc_codegen_gcc/src/lib.rs b/compiler/rustc_codegen_gcc/src/lib.rs
index 629003d7982..a549bcbd931 100644
--- a/compiler/rustc_codegen_gcc/src/lib.rs
+++ b/compiler/rustc_codegen_gcc/src/lib.rs
@@ -22,7 +22,6 @@ extern crate rustc_session;
 extern crate rustc_span;
 extern crate rustc_symbol_mangling;
 extern crate rustc_target;
-extern crate snap;
 
 // This prevents duplicating functions and statics that are already part of the host rustc process.
 #[allow(unused_extern_crates)]
@@ -128,10 +127,6 @@ impl ExtraBackendMethods for GccCodegenBackend {
         }
     }
 
-    fn write_compressed_metadata<'tcx>(&self, tcx: TyCtxt<'tcx>, metadata: &EncodedMetadata, gcc_module: &mut Self::Module) {
-        base::write_compressed_metadata(tcx, metadata, gcc_module)
-    }
-
     fn codegen_allocator<'tcx>(&self, tcx: TyCtxt<'tcx>, mods: &mut Self::Module, module_name: &str, kind: AllocatorKind, has_alloc_error_handler: bool) {
         unsafe { allocator::codegen(tcx, mods, module_name, kind, has_alloc_error_handler) }
     }