lib/Target/WebAssembly/WebAssemblyInstrMemory.td

   1 // WebAssemblyInstrMemory.td-WebAssembly Memory codegen support -*- tablegen -*-
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 ///
  10 /// \file
  11 /// \brief WebAssembly Memory operand code-gen constructs.
  12 ///
  13 //===----------------------------------------------------------------------===//
  14
  15 /*
  16  * TODO(jfb): Add the following.
  17  * Each has optional alignment and immediate byte offset.
  18  *
  19  * int32.load_sx[int8]: sign-extend to int32
  20  * int32.load_sx[int16]: sign-extend to int32
  21  * int32.load_zx[int8]: zero-extend to int32
  22  * int32.load_zx[int16]: zero-extend to int32
  23  * int32.load[int32]: (no conversion)
  24  * int64.load_sx[int8]: sign-extend to int64
  25  * int64.load_sx[int16]: sign-extend to int64
  26  * int64.load_sx[int32]: sign-extend to int64
  27  * int64.load_zx[int8]: zero-extend to int64
  28  * int64.load_zx[int16]: zero-extend to int64
  29  * int64.load_zx[int32]: zero-extend to int64
  30  * int64.load[int64]: (no conversion)
  31  * float32.load[float32]: (no conversion)
  32  * float64.load[float64]: (no conversion)
  33  *
  34  * int32.store[int8]: wrap int32 to int8
  35  * int32.store[int16]: wrap int32 to int16
  36  * int32.store[int32]: (no conversion)
  37  * int64.store[int8]: wrap int64 to int8
  38  * int64.store[int16]: wrap int64 to int16
  39  * int64.store[int32]: wrap int64 to int32
  40  * int64.store[int64]: (no conversion)
  41  * float32.store[float32]: (no conversion)
  42  * float64.store[float64]: (no conversion)
  43  *
  44  * load_global: load the value of a given global variable
  45  * store_global: store a given value to a given global variable
  46  */
  47
  48 def page_size_I32 : I<(outs Int32:$dst), (ins),
  49                       [(set Int32:$dst, (int_wasm_page_size))]>,
  50                     Requires<[HasAddr32]>;
  51 def page_size_I64 : I<(outs Int64:$dst), (ins),
  52                       [(set Int64:$dst, (int_wasm_page_size))]>,
  53                     Requires<[HasAddr64]>;