compiler/rustc_codegen_ssa/src/traits/asm.rs

   1 use super::BackendTypes;
   2 use crate::mir::operand::OperandRef;
   3 use crate::mir::place::PlaceRef;
   4 use rustc_ast::{InlineAsmOptions, InlineAsmTemplatePiece};
   5 use rustc_hir::def_id::DefId;
   6 use rustc_middle::ty::Instance;
   7 use rustc_span::Span;
   8 use rustc_target::asm::InlineAsmRegOrRegClass;
   9
  10 #[derive(Debug)]
  11 pub enum InlineAsmOperandRef<'tcx, B: BackendTypes + ?Sized> {
  12     In {
  13         reg: InlineAsmRegOrRegClass,
  14         value: OperandRef<'tcx, B::Value>,
  15     },
  16     Out {
  17         reg: InlineAsmRegOrRegClass,
  18         late: bool,
  19         place: Option<PlaceRef<'tcx, B::Value>>,
  20     },
  21     InOut {
  22         reg: InlineAsmRegOrRegClass,
  23         late: bool,
  24         in_value: OperandRef<'tcx, B::Value>,
  25         out_place: Option<PlaceRef<'tcx, B::Value>>,
  26     },
  27     Const {
  28         string: String,
  29     },
  30     SymFn {
  31         instance: Instance<'tcx>,
  32     },
  33     SymStatic {
  34         def_id: DefId,
  35     },
  36 }
  37
  38 #[derive(Debug)]
  39 pub enum GlobalAsmOperandRef<'tcx> {
  40     Const { string: String },
  41     SymFn { instance: Instance<'tcx> },
  42     SymStatic { def_id: DefId },
  43 }
  44
  45 pub trait AsmBuilderMethods<'tcx>: BackendTypes {
  46     /// Take an inline assembly expression and splat it out via LLVM
  47     fn codegen_inline_asm(
  48         &mut self,
  49         template: &[InlineAsmTemplatePiece],
  50         operands: &[InlineAsmOperandRef<'tcx, Self>],
  51         options: InlineAsmOptions,
  52         line_spans: &[Span],
  53         instance: Instance<'_>,
  54         dest_catch_funclet: Option<(Self::BasicBlock, Self::BasicBlock, Option<&Self::Funclet>)>,
  55     );
  56 }
  57
  58 pub trait AsmMethods<'tcx> {
  59     fn codegen_global_asm(
  60         &self,
  61         template: &[InlineAsmTemplatePiece],
  62         operands: &[GlobalAsmOperandRef<'tcx>],
  63         options: InlineAsmOptions,
  64         line_spans: &[Span],
  65     );
  66 }