src/gallium/drivers/radeon/AMDILCallingConv.td

   1 //===- AMDILCallingConv.td - Calling Conventions AMDIL -----*- 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 AMDIL architectures.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 //===----------------------------------------------------------------------===//
  15 // Return Value Calling Conventions
  16 //===----------------------------------------------------------------------===//
  17
  18 // AMDIL 32-bit C return-value convention.
  19 def RetCC_AMDIL32 : CallingConv<[
  20  // Since IL has no return values, all values can be emulated on the stack
  21  // The stack can then be mapped to a number of sequential virtual registers
  22  // in IL
  23
  24  // Integer and FP scalar values get put on the stack at 16-byte alignment
  25  // but with a size of 4 bytes
  26  CCIfType<[i32, f32], CCAssignToReg<
  27  [
  28  R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20
  29 ]> >, CCAssignToStack<16, 16>]>;
  30
  31 // AMDIL 32-bit C Calling convention.
  32 def CC_AMDIL32 : CallingConv<[
  33   // Since IL has parameter values, all values can be emulated on the stack
  34  // The stack can then be mapped to a number of sequential virtual registers
  35  // in IL
  36  // Integer and FP scalar values get put on the stack at 16-byte alignment
  37  // but with a size of 4 bytes
  38  // Integer and FP scalar values get put on the stack at 16-byte alignment
  39  // but with a size of 4 bytes
  40  CCIfType<[i32, f32], CCAssignToReg<
  41 [R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20
  42 ]> >, CCAssignToStack<16, 16>]>;