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Christian Konig2c8f6d52013-03-07 09:03:52 +00001//===---- AMDCallingConv.td - Calling Conventions for Radeon GPUs ---------===//
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 AMD Radeon GPUs.
11//
12//===----------------------------------------------------------------------===//
13
14// Inversion of CCIfInReg
15class CCIfNotInReg<CCAction A> : CCIf<"!ArgFlags.isInReg()", A> {}
16
17// Calling convention for SI
18def CC_SI : CallingConv<[
19
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 ]>>>,
24
25 CCIfInReg<CCIfType<[i64] , CCAssignToRegWithShadow<
26 [ SGPR0, SGPR2, SGPR4, SGPR6, SGPR8, SGPR10, SGPR12, SGPR14 ],
27 [ SGPR1, SGPR3, SGPR5, SGPR7, SGPR9, SGPR11, SGPR12, SGPR15 ]
28 >>>,
29
30 CCIfNotInReg<CCIfType<[f32, i32] , CCAssignToReg<[
31 VGPR0, VGPR1, VGPR2, VGPR3, VGPR4, VGPR5, VGPR6, VGPR7,
32 VGPR8, VGPR9, VGPR10, VGPR11, VGPR12, VGPR13, VGPR14, VGPR15,
33 VGPR16, VGPR17, VGPR18, VGPR19, VGPR20, VGPR21, VGPR22, VGPR23,
34 VGPR24, VGPR25, VGPR26, VGPR27, VGPR28, VGPR29, VGPR30, VGPR31
Tom Stellarded882c22013-06-03 17:40:11 +000035 ]>>>
Christian Konig2c8f6d52013-03-07 09:03:52 +000036
Tom Stellarded882c22013-06-03 17:40:11 +000037]>;
38
39// Calling convention for SI compute kernels
40def CC_SI_Kernel : CallingConv<[
41 CCIfType<[i64], CCAssignToStack <8, 4>>,
42 CCIfType<[i32, f32], CCAssignToStack <4, 4>>,
43 CCIfType<[i16], CCAssignToStack <2, 4>>,
44 CCIfType<[i8], CCAssignToStack <1, 4>>
Christian Konig2c8f6d52013-03-07 09:03:52 +000045]>;
46
47def CC_AMDGPU : CallingConv<[
Tom Stellarded882c22013-06-03 17:40:11 +000048 CCIf<"State.getMachineFunction().getInfo<SIMachineFunctionInfo>()->"#
49 "ShaderType == ShaderType::COMPUTE", CCDelegateTo<CC_SI_Kernel>>,
Tom Stellarda6c6e1b2013-06-07 20:37:48 +000050 CCIf<"State.getTarget().getSubtarget<AMDGPUSubtarget>()"#
51 ".getGeneration() == AMDGPUSubtarget::SOUTHERN_ISLANDS", CCDelegateTo<CC_SI>>
Christian Konig2c8f6d52013-03-07 09:03:52 +000052]>;