Merge remote-tracking branch 'rust-lang/master' into hermit

7 files changed, 18 insertions, 21 deletions

diff --git a/src/librustc_codegen_ssa/back/command.rs b/src/librustc_codegen_ssa/back/command.rs
index 2d84d67e3c8..b8501f0e12a 100644
--- a/src/librustc_codegen_ssa/back/command.rs
+++ b/src/librustc_codegen_ssa/back/command.rs
@@ -53,7 +53,7 @@ impl Command {
     }
 
     pub fn sym_arg(&mut self, arg: Symbol) -> &mut Command {
-        self.arg(&arg.as_str());
+        self.arg(&*arg.as_str());
         self
     }
 
diff --git a/src/librustc_codegen_ssa/back/symbol_export.rs b/src/librustc_codegen_ssa/back/symbol_export.rs
index 85a90459f5e..35b62603b07 100644
--- a/src/librustc_codegen_ssa/back/symbol_export.rs
+++ b/src/librustc_codegen_ssa/back/symbol_export.rs
@@ -129,9 +129,9 @@ fn reachable_non_generics_provider(
                 //
                 // In general though we won't link right if these
                 // symbols are stripped, and LTO currently strips them.
-                if &*name == "rust_eh_personality" ||
-                   &*name == "rust_eh_register_frames" ||
-                   &*name == "rust_eh_unregister_frames" {
+                if name == "rust_eh_personality" ||
+                   name == "rust_eh_register_frames" ||
+                   name == "rust_eh_unregister_frames" {
                     SymbolExportLevel::C
                 } else {
                     SymbolExportLevel::Rust
diff --git a/src/librustc_codegen_ssa/base.rs b/src/librustc_codegen_ssa/base.rs
index ee4ec7fb41e..c3f2a5161ae 100644
--- a/src/librustc_codegen_ssa/base.rs
+++ b/src/librustc_codegen_ssa/base.rs
@@ -552,8 +552,7 @@ pub fn codegen_crate<B: ExtraBackendMethods>(
     } else if let Some(kind) = *tcx.sess.allocator_kind.get() {
         let llmod_id = cgu_name_builder.build_cgu_name(LOCAL_CRATE,
                                                        &["crate"],
-                                                       Some("allocator")).as_str()
-                                                                         .to_string();
+                                                       Some("allocator")).to_string();
         let mut modules = backend.new_metadata(tcx, &llmod_id);
         time(tcx.sess, "write allocator module", || {
             backend.codegen_allocator(tcx, &mut modules, kind)
@@ -576,8 +575,7 @@ pub fn codegen_crate<B: ExtraBackendMethods>(
         // Codegen the encoded metadata.
         let metadata_cgu_name = cgu_name_builder.build_cgu_name(LOCAL_CRATE,
                                                                 &["crate"],
-                                                                Some("metadata")).as_str()
-                                                                                 .to_string();
+                                                                Some("metadata")).to_string();
         let mut metadata_llvm_module = backend.new_metadata(tcx, &metadata_cgu_name);
         time(tcx.sess, "write compressed metadata", || {
             backend.write_compressed_metadata(tcx, &ongoing_codegen.metadata,
diff --git a/src/librustc_codegen_ssa/debuginfo/type_names.rs b/src/librustc_codegen_ssa/debuginfo/type_names.rs
index 166a74fe487..8ff08e832dc 100644
--- a/src/librustc_codegen_ssa/debuginfo/type_names.rs
+++ b/src/librustc_codegen_ssa/debuginfo/type_names.rs
@@ -37,9 +37,9 @@ pub fn push_debuginfo_type_name<'tcx>(
         ty::Char => output.push_str("char"),
         ty::Str => output.push_str("str"),
         ty::Never => output.push_str("!"),
-        ty::Int(int_ty) => output.push_str(int_ty.ty_to_string()),
-        ty::Uint(uint_ty) => output.push_str(uint_ty.ty_to_string()),
-        ty::Float(float_ty) => output.push_str(float_ty.ty_to_string()),
+        ty::Int(int_ty) => output.push_str(int_ty.name_str()),
+        ty::Uint(uint_ty) => output.push_str(uint_ty.name_str()),
+        ty::Float(float_ty) => output.push_str(float_ty.name_str()),
         ty::Foreign(def_id) => push_item_name(tcx, def_id, qualified, output),
         ty::Adt(def, substs) => {
             push_item_name(tcx, def.did, qualified, output);
@@ -62,8 +62,8 @@ pub fn push_debuginfo_type_name<'tcx>(
                 output.push('*');
             }
             match mutbl {
-                hir::MutImmutable => output.push_str("const "),
-                hir::MutMutable => output.push_str("mut "),
+                hir::Mutability::Immutable => output.push_str("const "),
+                hir::Mutability::Mutable => output.push_str("mut "),
             }
 
             push_debuginfo_type_name(tcx, inner_type, true, output, visited);
@@ -76,9 +76,7 @@ pub fn push_debuginfo_type_name<'tcx>(
             if !cpp_like_names {
                 output.push('&');
             }
-            if mutbl == hir::MutMutable {
-                output.push_str("mut ");
-            }
+            output.push_str(mutbl.prefix_str());
 
             push_debuginfo_type_name(tcx, inner_type, true, output, visited);
 
@@ -140,9 +138,7 @@ pub fn push_debuginfo_type_name<'tcx>(
 
 
             let sig = t.fn_sig(tcx);
-            if sig.unsafety() == hir::Unsafety::Unsafe {
-                output.push_str("unsafe ");
-            }
+            output.push_str(sig.unsafety().prefix_str());
 
             let abi = sig.abi();
             if abi != rustc_target::spec::abi::Abi::Rust {
diff --git a/src/librustc_codegen_ssa/lib.rs b/src/librustc_codegen_ssa/lib.rs
index dd75883f97d..81e7ef64e97 100644
--- a/src/librustc_codegen_ssa/lib.rs
+++ b/src/librustc_codegen_ssa/lib.rs
@@ -59,7 +59,8 @@ pub struct ModuleCodegen<M> {
     pub kind: ModuleKind,
 }
 
-pub const METADATA_FILENAME: &str = "rust.metadata.bin";
+// FIXME(eddyb) maybe include the crate name in this?
+pub const METADATA_FILENAME: &str = "lib.rmeta";
 pub const RLIB_BYTECODE_EXTENSION: &str = "bc.z";
 
 
diff --git a/src/librustc_codegen_ssa/mir/block.rs b/src/librustc_codegen_ssa/mir/block.rs
index 07e904300a6..13cd202158b 100644
--- a/src/librustc_codegen_ssa/mir/block.rs
+++ b/src/librustc_codegen_ssa/mir/block.rs
@@ -995,7 +995,8 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
         bx: &mut Bx,
         span: Span,
     ) -> OperandRef<'tcx, Bx::Value> {
-        let caller = bx.tcx().sess.source_map().lookup_char_pos(span.lo());
+        let topmost = span.ctxt().outer_expn().expansion_cause().unwrap_or(span);
+        let caller = bx.tcx().sess.source_map().lookup_char_pos(topmost.lo());
         let const_loc = bx.tcx().const_caller_location((
             Symbol::intern(&caller.file.name.to_string()),
             caller.line as u32,
diff --git a/src/librustc_codegen_ssa/mir/rvalue.rs b/src/librustc_codegen_ssa/mir/rvalue.rs
index 1608f222bc6..981fdf22984 100644
--- a/src/librustc_codegen_ssa/mir/rvalue.rs
+++ b/src/librustc_codegen_ssa/mir/rvalue.rs
@@ -269,6 +269,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
                         }
                     }
                     mir::CastKind::Pointer(PointerCast::MutToConstPointer)
+                    | mir::CastKind::Pointer(PointerCast::ArrayToPointer)
                     | mir::CastKind::Misc => {
                         assert!(bx.cx().is_backend_immediate(cast));
                         let ll_t_out = bx.cx().immediate_backend_type(cast);