Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Add support for const operands and options to global_asm! #84107

Merged
merged 7 commits into from
May 14, 2021
Merged

Add support for const operands and options to global_asm! #84107

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
7 commits
Select commit Hold shift + click to select a range
5918ee4
Add support for const operands and options to global_asm!
Amanieu Apr 11, 2021
5a229e0
Add tests for global_asm!
Amanieu Apr 13, 2021
0df83f8
Update global_asm! documentation
Amanieu Apr 21, 2021
bb6bec1
Clarify error message when both asm! and global_asm! are unsupported
Amanieu Apr 26, 2021
40d9da4
global_asm! consts do not depend on other items
Amanieu Apr 26, 2021
d9cf2ce
Update compiler_builtins to 0.1.43
Amanieu May 2, 2021
a7ed6a5
Fix tests
Amanieu May 13, 2021
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 2 additions & 2 deletions Cargo.lock
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -655,9 +655,9 @@ dependencies = [

[[package]]
name = "compiler_builtins"
version = "0.1.39"
version = "0.1.43"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3748f82c7d366a0b4950257d19db685d4958d2fa27c6d164a3f069fec42b748b"
checksum = "65af2dcae4779003dfa91aedc6ade7bdc7ba685944e50a8b4f9380df376a4466"
dependencies = [
"cc",
"rustc-std-workspace-core",
Expand Down
10 changes: 1 addition & 9 deletions compiler/rustc_ast/src/ast.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2279,14 +2279,6 @@ pub struct ForeignMod {
pub items: Vec<P<ForeignItem>>,
}

/// Global inline assembly.
///
/// Also known as "module-level assembly" or "file-scoped assembly".
#[derive(Clone, Encodable, Decodable, Debug, Copy)]
pub struct GlobalAsm {
pub asm: Symbol,
}

#[derive(Clone, Encodable, Decodable, Debug)]
pub struct EnumDef {
pub variants: Vec<Variant>,
Expand Down Expand Up @@ -2669,7 +2661,7 @@ pub enum ItemKind {
/// E.g., `extern {}` or `extern "C" {}`.
ForeignMod(ForeignMod),
/// Module-level inline assembly (from `global_asm!()`).
GlobalAsm(GlobalAsm),
GlobalAsm(InlineAsm),
nagisa marked this conversation as resolved.
Show resolved Hide resolved
/// A type alias (`type`).
///
/// E.g., `type Foo = Bar<u8>;`.
Expand Down
46 changes: 24 additions & 22 deletions compiler/rustc_ast/src/mut_visit.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -965,7 +965,7 @@ pub fn noop_visit_item_kind<T: MutVisitor>(kind: &mut ItemKind, vis: &mut T) {
ModKind::Unloaded => {}
},
ItemKind::ForeignMod(nm) => vis.visit_foreign_mod(nm),
ItemKind::GlobalAsm(_ga) => {}
ItemKind::GlobalAsm(asm) => noop_visit_inline_asm(asm, vis),
ItemKind::TyAlias(box TyAliasKind(_, generics, bounds, ty)) => {
vis.visit_generics(generics);
visit_bounds(bounds, vis);
Expand Down Expand Up @@ -1170,6 +1170,28 @@ pub fn noop_visit_anon_const<T: MutVisitor>(AnonConst { id, value }: &mut AnonCo
vis.visit_expr(value);
}

fn noop_visit_inline_asm<T: MutVisitor>(asm: &mut InlineAsm, vis: &mut T) {
for (op, _) in &mut asm.operands {
match op {
InlineAsmOperand::In { expr, .. }
| InlineAsmOperand::InOut { expr, .. }
| InlineAsmOperand::Sym { expr, .. } => vis.visit_expr(expr),
InlineAsmOperand::Out { expr, .. } => {
if let Some(expr) = expr {
vis.visit_expr(expr);
}
}
InlineAsmOperand::SplitInOut { in_expr, out_expr, .. } => {
vis.visit_expr(in_expr);
if let Some(out_expr) = out_expr {
vis.visit_expr(out_expr);
}
}
InlineAsmOperand::Const { anon_const, .. } => vis.visit_anon_const(anon_const),
}
}
}

pub fn noop_visit_expr<T: MutVisitor>(
Expr { kind, id, span, attrs, tokens }: &mut Expr,
vis: &mut T,
Expand Down Expand Up @@ -1288,27 +1310,7 @@ pub fn noop_visit_expr<T: MutVisitor>(
ExprKind::Ret(expr) => {
visit_opt(expr, |expr| vis.visit_expr(expr));
}
ExprKind::InlineAsm(asm) => {
for (op, _) in &mut asm.operands {
match op {
InlineAsmOperand::In { expr, .. }
| InlineAsmOperand::InOut { expr, .. }
| InlineAsmOperand::Sym { expr, .. } => vis.visit_expr(expr),
InlineAsmOperand::Out { expr, .. } => {
if let Some(expr) = expr {
vis.visit_expr(expr);
}
}
InlineAsmOperand::SplitInOut { in_expr, out_expr, .. } => {
vis.visit_expr(in_expr);
if let Some(out_expr) = out_expr {
vis.visit_expr(out_expr);
}
}
InlineAsmOperand::Const { anon_const, .. } => vis.visit_anon_const(anon_const),
}
}
}
ExprKind::InlineAsm(asm) => noop_visit_inline_asm(asm, vis),
ExprKind::LlvmInlineAsm(asm) => {
let LlvmInlineAsm {
asm: _,
Expand Down
55 changes: 24 additions & 31 deletions compiler/rustc_ast/src/visit.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -90,9 +90,6 @@ pub trait Visitor<'ast>: Sized {
fn visit_foreign_item(&mut self, i: &'ast ForeignItem) {
walk_foreign_item(self, i)
}
fn visit_global_asm(&mut self, ga: &'ast GlobalAsm) {
walk_global_asm(self, ga)
}
fn visit_item(&mut self, i: &'ast Item) {
walk_item(self, i)
}
Expand Down Expand Up @@ -299,7 +296,7 @@ pub fn walk_item<'a, V: Visitor<'a>>(visitor: &mut V, item: &'a Item) {
ItemKind::ForeignMod(ref foreign_module) => {
walk_list!(visitor, visit_foreign_item, &foreign_module.items);
}
ItemKind::GlobalAsm(ref ga) => visitor.visit_global_asm(ga),
ItemKind::GlobalAsm(ref asm) => walk_inline_asm(visitor, asm),
ItemKind::TyAlias(box TyAliasKind(_, ref generics, ref bounds, ref ty)) => {
visitor.visit_generics(generics);
walk_list!(visitor, visit_param_bound, bounds);
Expand Down Expand Up @@ -557,10 +554,6 @@ pub fn walk_foreign_item<'a, V: Visitor<'a>>(visitor: &mut V, item: &'a ForeignI
}
}

pub fn walk_global_asm<'a, V: Visitor<'a>>(_: &mut V, _: &'a GlobalAsm) {
// Empty!
}

pub fn walk_param_bound<'a, V: Visitor<'a>>(visitor: &mut V, bound: &'a GenericBound) {
match *bound {
GenericBound::Trait(ref typ, ref modifier) => visitor.visit_poly_trait_ref(typ, modifier),
Expand Down Expand Up @@ -708,6 +701,28 @@ pub fn walk_anon_const<'a, V: Visitor<'a>>(visitor: &mut V, constant: &'a AnonCo
visitor.visit_expr(&constant.value);
}

fn walk_inline_asm<'a, V: Visitor<'a>>(visitor: &mut V, asm: &'a InlineAsm) {
for (op, _) in &asm.operands {
match op {
InlineAsmOperand::In { expr, .. }
| InlineAsmOperand::InOut { expr, .. }
| InlineAsmOperand::Sym { expr, .. } => visitor.visit_expr(expr),
InlineAsmOperand::Out { expr, .. } => {
if let Some(expr) = expr {
visitor.visit_expr(expr);
}
}
InlineAsmOperand::SplitInOut { in_expr, out_expr, .. } => {
visitor.visit_expr(in_expr);
if let Some(out_expr) = out_expr {
visitor.visit_expr(out_expr);
}
}
InlineAsmOperand::Const { anon_const, .. } => visitor.visit_anon_const(anon_const),
}
}
}

pub fn walk_expr<'a, V: Visitor<'a>>(visitor: &mut V, expression: &'a Expr) {
walk_list!(visitor, visit_attribute, expression.attrs.iter());

Expand Down Expand Up @@ -830,29 +845,7 @@ pub fn walk_expr<'a, V: Visitor<'a>>(visitor: &mut V, expression: &'a Expr) {
}
ExprKind::MacCall(ref mac) => visitor.visit_mac_call(mac),
ExprKind::Paren(ref subexpression) => visitor.visit_expr(subexpression),
ExprKind::InlineAsm(ref ia) => {
for (op, _) in &ia.operands {
match op {
InlineAsmOperand::In { expr, .. }
| InlineAsmOperand::InOut { expr, .. }
| InlineAsmOperand::Sym { expr, .. } => visitor.visit_expr(expr),
InlineAsmOperand::Out { expr, .. } => {
if let Some(expr) = expr {
visitor.visit_expr(expr);
}
}
InlineAsmOperand::SplitInOut { in_expr, out_expr, .. } => {
visitor.visit_expr(in_expr);
if let Some(out_expr) = out_expr {
visitor.visit_expr(out_expr);
}
}
InlineAsmOperand::Const { anon_const, .. } => {
visitor.visit_anon_const(anon_const)
}
}
}
}
ExprKind::InlineAsm(ref asm) => walk_inline_asm(visitor, asm),
ExprKind::LlvmInlineAsm(ref ia) => {
for &(_, ref input) in &ia.inputs {
visitor.visit_expr(input)
Expand Down
Loading