1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
//===---- AMDCallingConv.td - Calling Conventions for Radeon GPUs ---------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This describes the calling conventions for the AMD Radeon GPUs.
//
//===----------------------------------------------------------------------===//
// Inversion of CCIfInReg
class CCIfNotInReg<CCAction A> : CCIf<"!ArgFlags.isInReg()", A> {}
class CCIfExtend<CCAction A>
: CCIf<"ArgFlags.isSExt() || ArgFlags.isZExt()", A>;
// Calling convention for SI
def CC_SI : CallingConv<[
CCIfInReg<CCIfType<[f32, i32, f16, v2i16, v2f16] , CCAssignToReg<[
SGPR0, SGPR1, SGPR2, SGPR3, SGPR4, SGPR5, SGPR6, SGPR7,
SGPR8, SGPR9, SGPR10, SGPR11, SGPR12, SGPR13, SGPR14, SGPR15,
SGPR16, SGPR17, SGPR18, SGPR19, SGPR20, SGPR21, SGPR22, SGPR23,
SGPR24, SGPR25, SGPR26, SGPR27, SGPR28, SGPR29, SGPR30, SGPR31,
SGPR32, SGPR33, SGPR34, SGPR35, SGPR36, SGPR37, SGPR38, SGPR39,
SGPR40, SGPR41, SGPR42, SGPR43, SGPR44, SGPR45, SGPR46, SGPR47,
SGPR48, SGPR49, SGPR50, SGPR51, SGPR52, SGPR53, SGPR54, SGPR55,
SGPR56, SGPR57, SGPR58, SGPR59, SGPR60, SGPR61, SGPR62, SGPR63,
SGPR64, SGPR65, SGPR66, SGPR67, SGPR68, SGPR69, SGPR70, SGPR71,
SGPR72, SGPR73, SGPR74, SGPR75, SGPR76, SGPR77, SGPR78, SGPR79,
SGPR80, SGPR81, SGPR82, SGPR83, SGPR84, SGPR85, SGPR86, SGPR87,
SGPR88, SGPR89, SGPR90, SGPR91, SGPR92, SGPR93, SGPR94, SGPR95,
SGPR96, SGPR97, SGPR98, SGPR99, SGPR100, SGPR101, SGPR102, SGPR103,
SGPR104, SGPR105
]>>>,
// We have no way of referring to the generated register tuples
// here, so use a custom function.
CCIfInReg<CCIfType<[i64], CCCustom<"allocateSGPRTuple">>>,
CCIfByVal<CCIfType<[i64], CCCustom<"allocateSGPRTuple">>>,
// 32*4 + 4 is the minimum for a fetch shader consumer with 32 inputs.
CCIfNotInReg<CCIfType<[f32, i32, f16, v2i16, v2f16] , CCAssignToReg<[
VGPR0, VGPR1, VGPR2, VGPR3, VGPR4, VGPR5, VGPR6, VGPR7,
VGPR8, VGPR9, VGPR10, VGPR11, VGPR12, VGPR13, VGPR14, VGPR15,
VGPR16, VGPR17, VGPR18, VGPR19, VGPR20, VGPR21, VGPR22, VGPR23,
VGPR24, VGPR25, VGPR26, VGPR27, VGPR28, VGPR29, VGPR30, VGPR31,
VGPR32, VGPR33, VGPR34, VGPR35, VGPR36, VGPR37, VGPR38, VGPR39,
VGPR40, VGPR41, VGPR42, VGPR43, VGPR44, VGPR45, VGPR46, VGPR47,
VGPR48, VGPR49, VGPR50, VGPR51, VGPR52, VGPR53, VGPR54, VGPR55,
VGPR56, VGPR57, VGPR58, VGPR59, VGPR60, VGPR61, VGPR62, VGPR63,
VGPR64, VGPR65, VGPR66, VGPR67, VGPR68, VGPR69, VGPR70, VGPR71,
VGPR72, VGPR73, VGPR74, VGPR75, VGPR76, VGPR77, VGPR78, VGPR79,
VGPR80, VGPR81, VGPR82, VGPR83, VGPR84, VGPR85, VGPR86, VGPR87,
VGPR88, VGPR89, VGPR90, VGPR91, VGPR92, VGPR93, VGPR94, VGPR95,
VGPR96, VGPR97, VGPR98, VGPR99, VGPR100, VGPR101, VGPR102, VGPR103,
VGPR104, VGPR105, VGPR106, VGPR107, VGPR108, VGPR109, VGPR110, VGPR111,
VGPR112, VGPR113, VGPR114, VGPR115, VGPR116, VGPR117, VGPR118, VGPR119,
VGPR120, VGPR121, VGPR122, VGPR123, VGPR124, VGPR125, VGPR126, VGPR127,
VGPR128, VGPR129, VGPR130, VGPR131, VGPR132, VGPR133, VGPR134, VGPR135
]>>>
]>;
def RetCC_SI_Shader : CallingConv<[
CCIfType<[i32] , CCAssignToReg<[
SGPR0, SGPR1, SGPR2, SGPR3, SGPR4, SGPR5, SGPR6, SGPR7,
SGPR8, SGPR9, SGPR10, SGPR11, SGPR12, SGPR13, SGPR14, SGPR15,
SGPR16, SGPR17, SGPR18, SGPR19, SGPR20, SGPR21, SGPR22, SGPR23,
SGPR24, SGPR25, SGPR26, SGPR27, SGPR28, SGPR29, SGPR30, SGPR31,
SGPR32, SGPR33, SGPR34, SGPR35, SGPR36, SGPR37, SGPR38, SGPR39,
SGPR40, SGPR41, SGPR42, SGPR43, SGPR44, SGPR45, SGPR46, SGPR47,
SGPR48, SGPR49, SGPR50, SGPR51, SGPR52, SGPR53, SGPR54, SGPR55,
SGPR56, SGPR57, SGPR58, SGPR59, SGPR60, SGPR61, SGPR62, SGPR63,
SGPR64, SGPR65, SGPR66, SGPR67, SGPR68, SGPR69, SGPR70, SGPR71,
SGPR72, SGPR73, SGPR74, SGPR75, SGPR76, SGPR77, SGPR78, SGPR79,
SGPR80, SGPR81, SGPR82, SGPR83, SGPR84, SGPR85, SGPR86, SGPR87,
SGPR88, SGPR89, SGPR90, SGPR91, SGPR92, SGPR93, SGPR94, SGPR95,
SGPR96, SGPR97, SGPR98, SGPR99, SGPR100, SGPR101, SGPR102, SGPR103,
SGPR104, SGPR105
]>>,
// 32*4 + 4 is the minimum for a fetch shader with 32 outputs.
CCIfType<[f32, f16, v2f16] , CCAssignToReg<[
VGPR0, VGPR1, VGPR2, VGPR3, VGPR4, VGPR5, VGPR6, VGPR7,
VGPR8, VGPR9, VGPR10, VGPR11, VGPR12, VGPR13, VGPR14, VGPR15,
VGPR16, VGPR17, VGPR18, VGPR19, VGPR20, VGPR21, VGPR22, VGPR23,
VGPR24, VGPR25, VGPR26, VGPR27, VGPR28, VGPR29, VGPR30, VGPR31,
VGPR32, VGPR33, VGPR34, VGPR35, VGPR36, VGPR37, VGPR38, VGPR39,
VGPR40, VGPR41, VGPR42, VGPR43, VGPR44, VGPR45, VGPR46, VGPR47,
VGPR48, VGPR49, VGPR50, VGPR51, VGPR52, VGPR53, VGPR54, VGPR55,
VGPR56, VGPR57, VGPR58, VGPR59, VGPR60, VGPR61, VGPR62, VGPR63,
VGPR64, VGPR65, VGPR66, VGPR67, VGPR68, VGPR69, VGPR70, VGPR71,
VGPR72, VGPR73, VGPR74, VGPR75, VGPR76, VGPR77, VGPR78, VGPR79,
VGPR80, VGPR81, VGPR82, VGPR83, VGPR84, VGPR85, VGPR86, VGPR87,
VGPR88, VGPR89, VGPR90, VGPR91, VGPR92, VGPR93, VGPR94, VGPR95,
VGPR96, VGPR97, VGPR98, VGPR99, VGPR100, VGPR101, VGPR102, VGPR103,
VGPR104, VGPR105, VGPR106, VGPR107, VGPR108, VGPR109, VGPR110, VGPR111,
VGPR112, VGPR113, VGPR114, VGPR115, VGPR116, VGPR117, VGPR118, VGPR119,
VGPR120, VGPR121, VGPR122, VGPR123, VGPR124, VGPR125, VGPR126, VGPR127,
VGPR128, VGPR129, VGPR130, VGPR131, VGPR132, VGPR133, VGPR134, VGPR135
]>>
]>;
def CSR_AMDGPU_VGPRs_24_255 : CalleeSavedRegs<
(sequence "VGPR%u", 24, 255)
>;
def CSR_AMDGPU_VGPRs_32_255 : CalleeSavedRegs<
(sequence "VGPR%u", 32, 255)
>;
def CSR_AMDGPU_SGPRs_32_105 : CalleeSavedRegs<
(sequence "SGPR%u", 32, 105)
>;
// Just to get the regmask, not for calling convention purposes.
def CSR_AMDGPU_AllVGPRs : CalleeSavedRegs<
(sequence "VGPR%u", 0, 255)
>;
// Just to get the regmask, not for calling convention purposes.
def CSR_AMDGPU_AllAllocatableSRegs : CalleeSavedRegs<
(add (sequence "SGPR%u", 0, 105), VCC_LO, VCC_HI)
>;
def CSR_AMDGPU_HighRegs : CalleeSavedRegs<
(add CSR_AMDGPU_VGPRs_32_255, CSR_AMDGPU_SGPRs_32_105)
>;
// Calling convention for leaf functions
def CC_AMDGPU_Func : CallingConv<[
CCIfByVal<CCPassByVal<4, 4>>,
CCIfType<[i1], CCPromoteToType<i32>>,
CCIfType<[i1, i8, i16], CCIfExtend<CCPromoteToType<i32>>>,
CCIfType<[i32, f32, i16, f16, v2i16, v2f16, i1], CCAssignToReg<[
VGPR0, VGPR1, VGPR2, VGPR3, VGPR4, VGPR5, VGPR6, VGPR7,
VGPR8, VGPR9, VGPR10, VGPR11, VGPR12, VGPR13, VGPR14, VGPR15,
VGPR16, VGPR17, VGPR18, VGPR19, VGPR20, VGPR21, VGPR22, VGPR23,
VGPR24, VGPR25, VGPR26, VGPR27, VGPR28, VGPR29, VGPR30, VGPR31]>>,
CCIfType<[i64, f64, v2i32, v2f32, v3i32, v3f32, v4i32, v4f32, v5i32, v5f32, v8i32, v8f32, v16i32, v16f32, v2i64, v2f64, v4i16, v4f16], CCCustom<"allocateVGPRTuple">>,
CCIfType<[i32, f32, v2i16, v2f16, i16, f16, i1], CCAssignToStack<4, 4>>,
CCIfType<[i64, f64, v2i32, v2f32], CCAssignToStack<8, 4>>,
CCIfType<[v3i32, v3f32], CCAssignToStack<12, 4>>,
CCIfType<[v4i32, v4f32, v2i64, v2f64], CCAssignToStack<16, 4>>,
CCIfType<[v5i32, v5f32], CCAssignToStack<20, 4>>,
CCIfType<[v8i32, v8f32], CCAssignToStack<32, 4>>,
CCIfType<[v16i32, v16f32], CCAssignToStack<64, 4>>
]>;
// Calling convention for leaf functions
def RetCC_AMDGPU_Func : CallingConv<[
CCIfType<[i1], CCPromoteToType<i32>>,
CCIfType<[i1, i16], CCIfExtend<CCPromoteToType<i32>>>,
CCIfType<[i32, f32, i16, f16, v2i16, v2f16], CCAssignToReg<[
VGPR0, VGPR1, VGPR2, VGPR3, VGPR4, VGPR5, VGPR6, VGPR7,
VGPR8, VGPR9, VGPR10, VGPR11, VGPR12, VGPR13, VGPR14, VGPR15,
VGPR16, VGPR17, VGPR18, VGPR19, VGPR20, VGPR21, VGPR22, VGPR23,
VGPR24, VGPR25, VGPR26, VGPR27, VGPR28, VGPR29, VGPR30, VGPR31]>>,
CCIfType<[i64, f64, v2i32, v2f32, v4i32, v4f32, v8i32, v8f32, v16i32, v16f32, v2i64, v2f64, v4i16, v4f16], CCCustom<"allocateVGPRTuple">>
]>;
def CC_AMDGPU : CallingConv<[
CCIf<"static_cast<const GCNSubtarget&>"
"(State.getMachineFunction().getSubtarget()).getGeneration() >= "
"AMDGPUSubtarget::SOUTHERN_ISLANDS",
CCDelegateTo<CC_SI>>,
CCIf<"static_cast<const GCNSubtarget&>"
"(State.getMachineFunction().getSubtarget()).getGeneration() >= "
"AMDGPUSubtarget::SOUTHERN_ISLANDS && State.getCallingConv() == CallingConv::C",
CCDelegateTo<CC_AMDGPU_Func>>
]>;
|
