Sync from rust 8521a8c

Author: bjorn3

src/abi/mod.rs

@@ -342,7 +342,7 @@ pub(crate) fn codegen_terminator_call<'tcx>(
 
     let ret_place = codegen_place(fx, destination);
 
-    // Handle special calls like instrinsics and empty drop glue.
+    // Handle special calls like intrinsics and empty drop glue.
     let instance = if let ty::FnDef(def_id, substs) = *fn_ty.kind() {
         let instance = ty::Instance::resolve(fx.tcx, ty::ParamEnv::reveal_all(), def_id, substs)
             .unwrap()

src/base.rs

@@ -925,8 +925,11 @@ pub(crate) fn codegen_panic_inner<'tcx>(
     args: &[Value],
     span: Span,
 ) {
-    let def_id =
-        fx.tcx.lang_items().require(lang_item).unwrap_or_else(|s| fx.tcx.sess.span_fatal(span, &s));
+    let def_id = fx
+        .tcx
+        .lang_items()
+        .require(lang_item)
+        .unwrap_or_else(|e| fx.tcx.sess.span_fatal(span, e.to_string()));
 
     let instance = Instance::mono(fx.tcx, def_id).polymorphize(fx.tcx);
     let symbol_name = fx.tcx.symbol_name(instance).name;

src/constant.rs

@@ -59,7 +59,7 @@ pub(crate) fn check_constants(fx: &mut FunctionCx<'_, '_, '_>) -> bool {
                         ErrorHandled::TooGeneric => {
                             span_bug!(
                                 constant.span,
-                                "codgen encountered polymorphic constant: {:?}",
+                                "codegen encountered polymorphic constant: {:?}",
                                 err
                             );
                         }
@@ -430,7 +430,7 @@ fn define_all_allocs(tcx: TyCtxt<'_>, module: &mut dyn Module, cx: &mut Constant
         let bytes = alloc.inspect_with_uninit_and_ptr_outside_interpreter(0..alloc.len()).to_vec();
         data_ctx.define(bytes.into_boxed_slice());
 
-        for &(offset, alloc_id) in alloc.relocations().iter() {
+        for &(offset, alloc_id) in alloc.provenance().iter() {
             let addend = {
                 let endianness = tcx.data_layout.endian;
                 let offset = offset.bytes() as usize;

src/intrinsics/mod.rs

@@ -203,7 +203,7 @@ pub(crate) fn codegen_intrinsic_call<'tcx>(
             sym::transmute => {
                 crate::base::codegen_panic(fx, "Transmuting to uninhabited type.", source_info);
             }
-            _ => unimplemented!("unsupported instrinsic {}", intrinsic),
+            _ => unimplemented!("unsupported intrinsic {}", intrinsic),
         }
         return;
     };

src/intrinsics/simd.rs

@@ -186,7 +186,10 @@ pub(super) fn codegen_simd_intrinsic_call<'tcx>(
                         let size = Size::from_bytes(
                             4 * ret_lane_count, /* size_of([u32; ret_lane_count]) */
                         );
-                        alloc.inner().get_bytes(fx, alloc_range(offset, size)).unwrap()
+                        alloc
+                            .inner()
+                            .get_bytes_strip_provenance(fx, alloc_range(offset, size))
+                            .unwrap()
                     }
                     _ => unreachable!("{:?}", idx_const),
                 };

src/main_shim.rs

@@ -1,7 +1,7 @@
 use rustc_hir::LangItem;
 use rustc_middle::ty::subst::GenericArg;
 use rustc_middle::ty::AssocKind;
-use rustc_session::config::EntryFnType;
+use rustc_session::config::{sigpipe, EntryFnType};
 use rustc_span::symbol::Ident;
 
 use crate::prelude::*;
@@ -15,12 +15,12 @@ pub(crate) fn maybe_create_entry_wrapper(
     is_jit: bool,
     is_primary_cgu: bool,
 ) {
-    let (main_def_id, is_main_fn) = match tcx.entry_fn(()) {
+    let (main_def_id, (is_main_fn, sigpipe)) = match tcx.entry_fn(()) {
         Some((def_id, entry_ty)) => (
             def_id,
             match entry_ty {
-                EntryFnType::Main => true,
-                EntryFnType::Start => false,
+                EntryFnType::Main { sigpipe } => (true, sigpipe),
+                EntryFnType::Start => (false, sigpipe::DEFAULT),
             },
         ),
         None => return,
@@ -35,7 +35,7 @@ pub(crate) fn maybe_create_entry_wrapper(
         return;
     }
 
-    create_entry_fn(tcx, module, unwind_context, main_def_id, is_jit, is_main_fn);
+    create_entry_fn(tcx, module, unwind_context, main_def_id, is_jit, is_main_fn, sigpipe);
 
     fn create_entry_fn(
         tcx: TyCtxt<'_>,
@@ -44,6 +44,7 @@ pub(crate) fn maybe_create_entry_wrapper(
         rust_main_def_id: DefId,
         ignore_lang_start_wrapper: bool,
         is_main_fn: bool,
+        sigpipe: u8,
     ) {
         let main_ret_ty = tcx.fn_sig(rust_main_def_id).output();
         // Given that `main()` has no arguments,
@@ -83,6 +84,7 @@ pub(crate) fn maybe_create_entry_wrapper(
             bcx.switch_to_block(block);
             let arg_argc = bcx.append_block_param(block, m.target_config().pointer_type());
             let arg_argv = bcx.append_block_param(block, m.target_config().pointer_type());
+            let arg_sigpipe = bcx.ins().iconst(types::I8, sigpipe as i64);
 
             let main_func_ref = m.declare_func_in_func(main_func_id, &mut bcx.func);
 
@@ -143,7 +145,8 @@ pub(crate) fn maybe_create_entry_wrapper(
                 let main_val = bcx.ins().func_addr(m.target_config().pointer_type(), main_func_ref);
 
                 let func_ref = m.declare_func_in_func(start_func_id, &mut bcx.func);
-                let call_inst = bcx.ins().call(func_ref, &[main_val, arg_argc, arg_argv]);
+                let call_inst =
+                    bcx.ins().call(func_ref, &[main_val, arg_argc, arg_argv, arg_sigpipe]);
                 bcx.inst_results(call_inst)[0]
             } else {
                 // using user-defined start fn