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
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
#
# Copyright (c) 2024-2025, Intel Corporation
#
# SPDX-License-Identifier: BSD-3-Clause
#
# ispc CommonStdlibBuiltins.cmake
#
# Common function to determine architecture and OS
function(determine_arch_and_os target bit os out_arch out_os)
set(arch "error")
if ("${target}" MATCHES "sse|avx")
if ("${bit}" STREQUAL "32")
set(arch "x86")
elseif ("${bit}" STREQUAL "64")
set(arch "x86_64")
else()
set(arch "error")
endif()
elseif ("${target}" MATCHES "neon")
if ("${bit}" STREQUAL "32")
set(arch "arm")
elseif ("${bit}" STREQUAL "64")
set(arch "aarch64")
else()
set(arch "error")
endif()
elseif ("${target}" MATCHES "wasm")
if ("${bit}" STREQUAL "32")
set(arch "wasm32")
elseif ("${bit}" STREQUAL "64")
set(arch "wasm64")
else()
set(arch "error")
endif()
elseif ("${target}" MATCHES "gen9|xe")
set(arch "xe64")
endif()
if ("${arch}" STREQUAL "error")
message(FATAL_ERROR "Incorrect target or bit passed: ${target} ${os} ${bit}")
endif()
if ("${os}" STREQUAL "unix")
set(os "linux")
endif()
set(${out_arch} ${arch} PARENT_SCOPE)
set(${out_os} ${os} PARENT_SCOPE)
endfunction()
# This function is a common entry to generate stdlib or target builtins via
# stdlib_to_cpp or target_ll_to_cpp
function (disp_target_stdlib func ispc_name target bit os CPP_LIST BC_LIST)
if (${func} STREQUAL "stdlib_to_cpp")
stdlib_to_cpp(${ispc_name} ${target} ${bit} ${os} ${CPP_LIST} ${BC_LIST})
elseif(${func} STREQUAL "target_ll_to_cpp")
target_ll_to_cpp(${target} ${bit} ${os} ${CPP_LIST} ${BC_LIST})
else()
message(FATAL_ERROR "Incorrect func name")
endif()
set(${CPP_LIST} ${${CPP_LIST}} PARENT_SCOPE)
set(${BC_LIST} ${${BC_LIST}} PARENT_SCOPE)
endfunction()
# Common function to call stdlib_to_cpp or target_ll_to_cpp. The actual name
# is passed in func argument.
function (generate_stdlib_or_target_builtins func ispc_name CPP_LIST BC_LIST)
list(APPEND os_list)
if (ISPC_WINDOWS_TARGET)
list(APPEND os_list "windows")
endif()
if (ISPC_UNIX_TARGET)
list(APPEND os_list "unix")
endif()
if (NOT os_list)
message(FATAL_ERROR "Windows or Linux target has to be enabled")
endif()
# "Regular" targets, targeting specific real ISA: sse/avx
if (X86_ENABLED)
foreach (target ${X86_TARGETS})
foreach (bit 32 64)
foreach (os ${os_list})
disp_target_stdlib(${func} ${ispc_name} ${target} ${bit} ${os} ${CPP_LIST} ${BC_LIST})
endforeach()
endforeach()
endforeach()
endif()
# XE targets
if (XE_ENABLED)
foreach (target ${XE_TARGETS})
if (${func} STREQUAL "stdlib_to_cpp")
# No cross-compilation for XE targets
if (WIN32)
disp_target_stdlib(${func} ${ispc_name} ${target} 64 windows ${CPP_LIST} ${BC_LIST})
elseif (APPLE)
# no xe support
else()
disp_target_stdlib(${func} ${ispc_name} ${target} 64 unix ${CPP_LIST} ${BC_LIST})
endif()
elseif(${func} STREQUAL "target_ll_to_cpp")
foreach (os ${os_list})
disp_target_stdlib(${func} ${ispc_name} ${target} 64 ${os} ${CPP_LIST} ${BC_LIST})
endforeach()
else()
message(FATAL_ERROR "Incorrect func name")
endif()
endforeach()
endif()
# ARM targets
if (ARM_ENABLED)
foreach (os ${os_list})
foreach (target ${ARM_TARGETS})
disp_target_stdlib(${func} ${ispc_name} ${target} 64 ${os} ${CPP_LIST} ${BC_LIST})
# On windows only 64-bit neon targets is supported
if (${os} STREQUAL "windows")
continue()
endif()
disp_target_stdlib(${func} ${ispc_name} ${target} 32 ${os} ${CPP_LIST} ${BC_LIST})
endforeach()
endforeach()
endif()
# WASM targets.
if (WASM_ENABLED)
foreach (target ${WASM_TARGETS})
foreach (bit 32 64)
disp_target_stdlib(${func} ${ispc_name} ${target} ${bit} web ${CPP_LIST} ${BC_LIST})
endforeach()
endforeach()
endif()
set(${CPP_LIST} ${${CPP_LIST}} PARENT_SCOPE)
set(${BC_LIST} ${${BC_LIST}} PARENT_SCOPE)
endfunction()
# Generate bitcode and corresponding C++ wrapper files for generic targets.
function(generate_generic ispc_name target arch bit os component)
set(include ${CMAKE_CURRENT_SOURCE_DIR}/stdlib/include)
# Handle OS-specific settings
if("${os}" STREQUAL "unix")
set(fixed_os "linux")
set(OS_UP UNIX)
elseif("${os}" STREQUAL "windows")
set(fixed_os "windows")
set(OS_UP WINDOWS)
elseif("${os}" STREQUAL "web")
set(fixed_os "web")
set(OS_UP WEB)
else()
message(FATAL_ERROR "Error: unknown OS for target ${os}")
endif()
# Set component-specific variables
if("${component}" STREQUAL "builtins")
set(name "builtins_target_generic_${target}_${arch}_${os}")
set(input_ispc "builtins/generic.ispc")
set(bitcode_type "ispc-target")
set(bitcode_lib_entry "static BitcodeLib ${name}(\"${name}.bc\", ISPCTarget::generic_${target}, TargetOS::${fixed_os}, Arch::${arch});\n")
set(bc_list_var "GENERIC_TARGET_BC_FILE")
set(cpp_list_var "GENERIC_TARGET_CPP_FILE")
else() # stdlib
set(name "stdlib_generic_${target}_${arch}_${os}")
set(input_ispc "stdlib/stdlib.ispc")
set(bitcode_type "stdlib")
set(bitcode_lib_entry "static BitcodeLib ${name}(BitcodeLib::BitcodeLibType::Stdlib, \"${name}.bc\", ISPCTarget::generic_${target}, TargetOS::${fixed_os}, Arch::${arch});\n")
set(bc_list_var "GENERIC_STDLIB_BC_FILE")
set(cpp_list_var "GENERIC_STDLIB_CPP_FILE")
endif()
# Handle Linux target special case
if("${fixed_os}" STREQUAL "linux" AND NOT ISPC_LINUX_TARGET)
if(APPLE)
set(fixed_os "macos")
if (${arch} STREQUAL "arm")
return()
endif()
elseif(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
set(fixed_os "freebsd")
else()
message(FATAL_ERROR "Error: unknown OS for target ${fixed_os}")
endif()
endif()
file(APPEND ${CMAKE_BINARY_DIR}/bitcode_libs_generated.cpp "${bitcode_lib_entry}")
set(target "generic-${target}")
set(cpp ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/${name}.cpp)
set(bc ${BITCODE_FOLDER}/${name}.bc)
# Generate bitcode
add_custom_command(
OUTPUT ${bc}
COMMAND ${ispc_name} -I ${include} --enable-llvm-intrinsics --nostdlib --gen-stdlib
--target=${target} --arch=${arch} --target-os=${fixed_os} --emit-llvm
-o ${bc} ${input_ispc} -DBUILD_OS=${OS_UP} -DRUNTIME=${bit}
DEPENDS ${ispc_name} ${input_ispc}
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
)
# Generate CPP wrapper
add_custom_command(
OUTPUT ${cpp}
COMMAND ${Python3_EXECUTABLE} ${BITCODE2CPP} ${bc} --type=${bitcode_type}
--runtime=${bit} --os=${OS_UP} --arch=${arch} ${cpp}
DEPENDS ${bc} ${BITCODE2CPP}
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
)
# Update parent scope variables
list(APPEND ${bc_list_var} ${bc})
set(${bc_list_var} ${${bc_list_var}} PARENT_SCOPE)
list(APPEND ${cpp_list_var} ${cpp})
set(${cpp_list_var} ${${cpp_list_var}} PARENT_SCOPE)
endfunction()
|
