1 //===---- AMDCallingConv.td - Calling Conventions for Radeon GPUs ---------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This describes the calling conventions for the AMD Radeon GPUs.
12 //===----------------------------------------------------------------------===//
14 // Inversion of CCIfInReg
15 class CCIfNotInReg<CCAction A> : CCIf<"!ArgFlags.isInReg()", A> {}
17 // Calling convention for SI
18 def CC_SI : CallingConv<[
20 CCIfInReg<CCIfType<[f32, i32] , CCAssignToReg<[
21 SGPR0, SGPR1, SGPR2, SGPR3, SGPR4, SGPR5, SGPR6, SGPR7,
22 SGPR8, SGPR9, SGPR10, SGPR11, SGPR12, SGPR13, SGPR14, SGPR15,
23 SGPR16, SGPR17, SGPR18, SGPR19, SGPR20, SGPR21
26 CCIfInReg<CCIfType<[i64] , CCAssignToRegWithShadow<
27 [ SGPR0, SGPR2, SGPR4, SGPR6, SGPR8, SGPR10, SGPR12, SGPR14 ],
28 [ SGPR1, SGPR3, SGPR5, SGPR7, SGPR9, SGPR11, SGPR13, SGPR15 ]
31 CCIfNotInReg<CCIfType<[f32, i32] , CCAssignToReg<[
32 VGPR0, VGPR1, VGPR2, VGPR3, VGPR4, VGPR5, VGPR6, VGPR7,
33 VGPR8, VGPR9, VGPR10, VGPR11, VGPR12, VGPR13, VGPR14, VGPR15,
34 VGPR16, VGPR17, VGPR18, VGPR19, VGPR20, VGPR21, VGPR22, VGPR23,
35 VGPR24, VGPR25, VGPR26, VGPR27, VGPR28, VGPR29, VGPR30, VGPR31
38 CCIfByVal<CCIfType<[i64] , CCAssignToRegWithShadow<
39 [ SGPR0, SGPR2, SGPR4, SGPR6, SGPR8, SGPR10, SGPR12, SGPR14 ],
40 [ SGPR1, SGPR3, SGPR5, SGPR7, SGPR9, SGPR11, SGPR13, SGPR15 ]
45 // Calling convention for R600
46 def CC_R600 : CallingConv<[
47 CCIfInReg<CCIfType<[v4f32, v4i32] , CCAssignToReg<[
48 T0_XYZW, T1_XYZW, T2_XYZW, T3_XYZW, T4_XYZW, T5_XYZW, T6_XYZW, T7_XYZW,
49 T8_XYZW, T9_XYZW, T10_XYZW, T11_XYZW, T12_XYZW, T13_XYZW, T14_XYZW, T15_XYZW,
50 T16_XYZW, T17_XYZW, T18_XYZW, T19_XYZW, T20_XYZW, T21_XYZW, T22_XYZW,
51 T23_XYZW, T24_XYZW, T25_XYZW, T26_XYZW, T27_XYZW, T28_XYZW, T29_XYZW,
52 T30_XYZW, T31_XYZW, T32_XYZW
56 // Calling convention for compute kernels
57 def CC_AMDGPU_Kernel : CallingConv<[
58 CCCustom<"allocateStack">
61 def CC_AMDGPU : CallingConv<[
62 CCIf<"static_cast<const AMDGPUSubtarget&>"
63 "(State.getMachineFunction().getSubtarget()).getGeneration() >="
64 "AMDGPUSubtarget::SOUTHERN_ISLANDS && "
65 "State.getMachineFunction().getInfo<SIMachineFunctionInfo>()"
66 "->getShaderType() == ShaderType::COMPUTE",
67 CCDelegateTo<CC_AMDGPU_Kernel>>,
68 CCIf<"static_cast<const AMDGPUSubtarget&>"
69 "(State.getMachineFunction().getSubtarget()).getGeneration() < "
70 "AMDGPUSubtarget::SOUTHERN_ISLANDS && "
71 "State.getMachineFunction().getInfo<R600MachineFunctionInfo>()"
72 "->getShaderType() == ShaderType::COMPUTE",
73 CCDelegateTo<CC_AMDGPU_Kernel>>,
74 CCIf<"static_cast<const AMDGPUSubtarget&>"
75 "(State.getMachineFunction().getSubtarget()).getGeneration() >= "
76 "AMDGPUSubtarget::SOUTHERN_ISLANDS",
78 CCIf<"static_cast<const AMDGPUSubtarget&>"
79 "(State.getMachineFunction().getSubtarget()).getGeneration() < "
80 "AMDGPUSubtarget::SOUTHERN_ISLANDS",
81 CCDelegateTo<CC_R600>>