compiler/rustc_target/src/asm/wasm.rs

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