Support #[no_debug] for global variables.

This commit is contained in:
Michael Woerister 2018-04-12 14:52:09 +02:00
parent d5b48a4b1b
commit 5cc7d5ef70

View File

@ -23,6 +23,7 @@ use llvm::{self, ValueRef};
use llvm::debuginfo::{DIType, DIFile, DIScope, DIDescriptor,
DICompositeType, DILexicalBlock, DIFlags};
use rustc::hir::TransFnAttrFlags;
use rustc::hir::def::CtorKind;
use rustc::hir::def_id::{DefId, CrateNum, LOCAL_CRATE};
use rustc::ty::fold::TypeVisitor;
@ -41,7 +42,7 @@ use std::ffi::CString;
use std::fmt::Write;
use std::ptr;
use std::path::{Path, PathBuf};
use syntax::{ast, attr};
use syntax::ast;
use syntax::symbol::{Interner, InternedString, Symbol};
use syntax_pos::{self, Span, FileName};
@ -1644,11 +1645,17 @@ pub fn create_global_var_metadata(cx: &CodegenCx,
}
let tcx = cx.tcx;
let no_mangle = attr::contains_name(&tcx.get_attrs(def_id), "no_mangle");
let attrs = tcx.trans_fn_attrs(def_id);
if attrs.flags.contains(TransFnAttrFlags::NO_DEBUG) {
return;
}
let no_mangle = attrs.flags.contains(TransFnAttrFlags::NO_MANGLE);
// We may want to remove the namespace scope if we're in an extern block, see:
// https://github.com/rust-lang/rust/pull/46457#issuecomment-351750952
let var_scope = get_namespace_for_item(cx, def_id);
let span = cx.tcx.def_span(def_id);
let span = tcx.def_span(def_id);
let (file_metadata, line_number) = if span != syntax_pos::DUMMY_SP {
let loc = span_start(cx, span);