compiler/rustc_target/src/asm/wasm.rs

   1 use super::{InlineAsmArch, InlineAsmType};
   2 use rustc_macros::HashStable_Generic;
   3 use rustc_span::Symbol;
   4
   5 def_reg_class! {
   6     Wasm WasmInlineAsmRegClass {
   7         local,
   8     }
   9 }
  10
  11 impl WasmInlineAsmRegClass {
  12     pub fn valid_modifiers(self, _arch: super::InlineAsmArch) -> &'static [char] {
  13         &[]
  14     }
  15
  16     pub fn suggest_class(self, _arch: InlineAsmArch, _ty: InlineAsmType) -> Option<Self> {
  17         None
  18     }
  19
  20     pub fn suggest_modifier(
  21         self,
  22         _arch: InlineAsmArch,
  23         _ty: InlineAsmType,
  24     ) -> Option<(char, &'static str)> {
  25         None
  26     }
  27
  28     pub fn default_modifier(self, _arch: InlineAsmArch) -> Option<(char, &'static str)> {
  29         None
  30     }
  31
  32     pub fn supported_types(
  33         self,
  34         _arch: InlineAsmArch,
  35     ) -> &'static [(InlineAsmType, Option<Symbol>)] {
  36         match self {
  37             Self::local => {
  38                 types! { _: I8, I16, I32, I64, F32, F64; }
  39             }
  40         }
  41     }
  42 }
  43
  44 def_regs! {
  45     // WebAssembly doesn't have registers.
  46     Wasm WasmInlineAsmReg WasmInlineAsmRegClass {}
  47 }