contrib/llvm/lib/Target/CellSPU/SPUCallingConv.td

   1 //===- SPUCallingConv.td - Calling Conventions for CellSPU -*- 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 // This describes the calling conventions for the STI Cell SPU architecture.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 /// CCIfSubtarget - Match if the current subtarget has a feature F.
  15 class CCIfSubtarget<string F, CCAction A>
  16  : CCIf<!strconcat("State.getTarget().getSubtarget<PPCSubtarget>().", F), A>;
  17
  18 //===----------------------------------------------------------------------===//
  19 // Return Value Calling Convention
  20 //===----------------------------------------------------------------------===//
  21
  22 // Return-value convention for Cell SPU: return value to be passed in reg 3-74
  23 def RetCC_SPU : CallingConv<[
  24   CCIfType<[i8,i16,i32,i64,i128,f32,f64,v16i8,v8i16,v4i32,v2i64,v4f32,v2f64],
  25   CCAssignToReg<[R3,   R4,  R5,  R6,  R7,  R8,  R9, R10, R11,
  26                  R12, R13, R14, R15, R16, R17, R18, R19, R20,
  27                  R21, R22, R23, R24, R25, R26, R27, R28, R29,
  28                  R30, R31, R32, R33, R34, R35, R36, R37, R38,
  29                  R39, R40, R41, R42, R43, R44, R45, R46, R47,
  30                  R48, R49, R50, R51, R52, R53, R54, R55, R56,
  31                  R57, R58, R59, R60, R61, R62, R63, R64, R65,
  32                  R66, R67, R68, R69, R70, R71, R72, R73, R74]>>
  33 ]>;
  34
  35
  36 //===----------------------------------------------------------------------===//
  37 // CellSPU Argument Calling Conventions
  38 //===----------------------------------------------------------------------===//
  39 def CCC_SPU : CallingConv<[
  40   CCIfType<[i8, i16, i32, i64, i128, f32, f64,
  41             v16i8, v8i16, v4i32, v4f32, v2i64, v2f64],
  42             CCAssignToReg<[R3,   R4,  R5,  R6,  R7,  R8,  R9, R10, R11,
  43                            R12, R13, R14, R15, R16, R17, R18, R19, R20,
  44                            R21, R22, R23, R24, R25, R26, R27, R28, R29,
  45                            R30, R31, R32, R33, R34, R35, R36, R37, R38,
  46                            R39, R40, R41, R42, R43, R44, R45, R46, R47,
  47                            R48, R49, R50, R51, R52, R53, R54, R55, R56,
  48                            R57, R58, R59, R60, R61, R62, R63, R64, R65,
  49                            R66, R67, R68, R69, R70, R71, R72, R73, R74]>>,
  50   // Integer/FP values get stored in stack slots that are 8 bytes in size and
  51   // 8-byte aligned if there are no more registers to hold them.
  52   CCIfType<[i32, i64, f32, f64], CCAssignToStack<8, 8>>,
  53
  54   // Vectors get 16-byte stack slots that are 16-byte aligned.
  55   CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64],
  56               CCAssignToStack<16, 16>>
  57 ]>;