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
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
# LLVM_TARGET_DEFINITIONS must contain the name of the .td file to process,
# while LLVM_TARGET_DEPENDS may contain additional file dependencies.
# Extra parameters for `tblgen' may come after `ofn' parameter.
# Adds the name of the generated file to TABLEGEN_OUTPUT.
include(LLVMDistributionSupport)
# Clear out any pre-existing compile_commands file before processing. This
# allows for generating a clean compile_commands on each configure.
file(REMOVE ${CMAKE_BINARY_DIR}/tablegen_compile_commands.yml)
function(tablegen project ofn)
cmake_parse_arguments(ARG "" "" "DEPENDS;EXTRA_INCLUDES" ${ARGN})
# Override ${project} with ${project}_TABLEGEN_PROJECT
if(NOT "${${project}_TABLEGEN_PROJECT}" STREQUAL "")
set(project ${${project}_TABLEGEN_PROJECT})
endif()
# Validate calling context.
if(NOT ${project}_TABLEGEN_EXE)
message(FATAL_ERROR "${project}_TABLEGEN_EXE not set")
endif()
# Use depfile instead of globbing arbitrary *.td(s) for Ninja.
if(CMAKE_GENERATOR MATCHES "Ninja")
# Make output path relative to build.ninja, assuming located on
# ${CMAKE_BINARY_DIR}.
# CMake emits build targets as relative paths but Ninja doesn't identify
# absolute path (in *.d) as relative path (in build.ninja)
# Note that tblgen is executed on ${CMAKE_BINARY_DIR} as working directory.
file(RELATIVE_PATH ofn_rel
${CMAKE_BINARY_DIR} ${CMAKE_CURRENT_BINARY_DIR}/${ofn})
set(additional_cmdline
-o ${ofn_rel}
-d ${ofn_rel}.d
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
DEPFILE ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.d
)
set(local_tds)
set(global_tds)
else()
file(GLOB local_tds "*.td")
file(GLOB_RECURSE global_tds "${LLVM_MAIN_INCLUDE_DIR}/llvm/*.td")
set(additional_cmdline
-o ${CMAKE_CURRENT_BINARY_DIR}/${ofn}
)
endif()
if (IS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS})
set(LLVM_TARGET_DEFINITIONS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS})
else()
set(LLVM_TARGET_DEFINITIONS_ABSOLUTE
${CMAKE_CURRENT_SOURCE_DIR}/${LLVM_TARGET_DEFINITIONS})
endif()
if (LLVM_ENABLE_DAGISEL_COV AND "-gen-dag-isel" IN_LIST ARGN)
list(APPEND LLVM_TABLEGEN_FLAGS "-instrument-coverage")
endif()
if (LLVM_ENABLE_GISEL_COV AND "-gen-global-isel" IN_LIST ARGN)
list(APPEND LLVM_TABLEGEN_FLAGS "-instrument-gisel-coverage")
list(APPEND LLVM_TABLEGEN_FLAGS "-gisel-coverage-file=${LLVM_GISEL_COV_PREFIX}all")
endif()
if (LLVM_OMIT_DAGISEL_COMMENTS AND "-gen-dag-isel" IN_LIST ARGN)
list(APPEND LLVM_TABLEGEN_FLAGS "-omit-comments")
endif()
# MSVC can't support long string literals ("long" > 65534 bytes)[1], so if there's
# a possibility of generated tables being consumed by MSVC, generate arrays of
# char literals, instead. If we're cross-compiling, then conservatively assume
# that the source might be consumed by MSVC.
# [1] https://docs.microsoft.com/en-us/cpp/cpp/compiler-limits?view=vs-2017
if (MSVC AND project STREQUAL LLVM)
list(APPEND LLVM_TABLEGEN_FLAGS "--long-string-literals=0")
endif()
if (CMAKE_GENERATOR MATCHES "Visual Studio")
# Visual Studio has problems with llvm-tblgen's native --write-if-changed
# behavior. Since it doesn't do restat optimizations anyway, just don't
# pass --write-if-changed there.
set(tblgen_change_flag)
else()
set(tblgen_change_flag "--write-if-changed")
endif()
if (NOT LLVM_ENABLE_WARNINGS)
list(APPEND LLVM_TABLEGEN_FLAGS "-no-warn-on-unused-template-args")
endif()
# We need both _TABLEGEN_TARGET and _TABLEGEN_EXE in the DEPENDS list
# (both the target and the file) to have .inc files rebuilt on
# a tablegen change, as cmake does not propagate file-level dependencies
# of custom targets. See the following ticket for more information:
# https://cmake.org/Bug/view.php?id=15858
# The dependency on both, the target and the file, produces the same
# dependency twice in the result file when
# ("${${project}_TABLEGEN_TARGET}" STREQUAL "${${project}_TABLEGEN_EXE}")
# but lets us having smaller and cleaner code here.
get_directory_property(tblgen_includes INCLUDE_DIRECTORIES)
list(APPEND tblgen_includes ${ARG_EXTRA_INCLUDES})
# Get the current set of include paths for this td file.
cmake_parse_arguments(ARG "" "" "DEPENDS;EXTRA_INCLUDES" ${ARGN})
get_directory_property(tblgen_includes INCLUDE_DIRECTORIES)
list(APPEND tblgen_includes ${ARG_EXTRA_INCLUDES})
# Filter out any empty include items.
list(REMOVE_ITEM tblgen_includes "")
# Build the absolute path for the current input file.
if (IS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS})
set(LLVM_TARGET_DEFINITIONS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS})
else()
set(LLVM_TARGET_DEFINITIONS_ABSOLUTE ${CMAKE_CURRENT_SOURCE_DIR}/${LLVM_TARGET_DEFINITIONS})
endif()
# Append this file and its includes to the compile commands file.
# This file is used by the TableGen LSP Language Server (tblgen-lsp-server).
file(APPEND ${CMAKE_BINARY_DIR}/tablegen_compile_commands.yml
"--- !FileInfo:\n"
" filepath: \"${LLVM_TARGET_DEFINITIONS_ABSOLUTE}\"\n"
" includes: \"${CMAKE_CURRENT_SOURCE_DIR};${tblgen_includes}\"\n"
)
# Filter out empty items before prepending each entry with -I
list(REMOVE_ITEM tblgen_includes "")
list(TRANSFORM tblgen_includes PREPEND -I)
set(tablegen_exe ${${project}_TABLEGEN_EXE})
set(tablegen_depends ${${project}_TABLEGEN_TARGET} ${tablegen_exe})
add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ofn}
COMMAND ${tablegen_exe} ${ARG_UNPARSED_ARGUMENTS} -I ${CMAKE_CURRENT_SOURCE_DIR}
${tblgen_includes}
${LLVM_TABLEGEN_FLAGS}
${LLVM_TARGET_DEFINITIONS_ABSOLUTE}
${tblgen_change_flag}
${additional_cmdline}
# The file in LLVM_TARGET_DEFINITIONS may be not in the current
# directory and local_tds may not contain it, so we must
# explicitly list it here:
DEPENDS ${ARG_DEPENDS} ${tablegen_depends}
${local_tds} ${global_tds}
${LLVM_TARGET_DEFINITIONS_ABSOLUTE}
${LLVM_TARGET_DEPENDS}
COMMENT "Building ${ofn}..."
)
# `make clean' must remove all those generated files:
set_property(DIRECTORY APPEND PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${ofn})
set(TABLEGEN_OUTPUT ${TABLEGEN_OUTPUT} ${CMAKE_CURRENT_BINARY_DIR}/${ofn} PARENT_SCOPE)
set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/${ofn} PROPERTIES
GENERATED 1)
endfunction()
# Creates a target for publicly exporting tablegen dependencies.
function(add_public_tablegen_target target)
if(NOT TABLEGEN_OUTPUT)
message(FATAL_ERROR "Requires tablegen() definitions as TABLEGEN_OUTPUT.")
endif()
add_custom_target(${target}
DEPENDS ${TABLEGEN_OUTPUT})
if(LLVM_COMMON_DEPENDS)
add_dependencies(${target} ${LLVM_COMMON_DEPENDS})
endif()
set_target_properties(${target} PROPERTIES FOLDER "Tablegenning")
set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} ${target} PARENT_SCOPE)
endfunction()
macro(add_tablegen target project)
cmake_parse_arguments(ADD_TABLEGEN "" "DESTINATION;EXPORT" "" ${ARGN})
set(${target}_OLD_LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS})
set(LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS} TableGen)
add_llvm_executable(${target} DISABLE_LLVM_LINK_LLVM_DYLIB
${ADD_TABLEGEN_UNPARSED_ARGUMENTS})
set(LLVM_LINK_COMPONENTS ${${target}_OLD_LLVM_LINK_COMPONENTS})
set(${project}_TABLEGEN_DEFAULT "${target}")
if (LLVM_NATIVE_TOOL_DIR)
if (EXISTS "${LLVM_NATIVE_TOOL_DIR}/${target}${LLVM_HOST_EXECUTABLE_SUFFIX}")
set(${project}_TABLEGEN_DEFAULT "${LLVM_NATIVE_TOOL_DIR}/${target}${LLVM_HOST_EXECUTABLE_SUFFIX}")
endif()
endif()
# FIXME: Quick fix to reflect LLVM_TABLEGEN to llvm-min-tblgen
if("${target}" STREQUAL "llvm-min-tblgen"
AND NOT "${LLVM_TABLEGEN}" STREQUAL ""
AND NOT "${LLVM_TABLEGEN}" STREQUAL "llvm-tblgen")
set(${project}_TABLEGEN_DEFAULT "${LLVM_TABLEGEN}")
endif()
if(ADD_TABLEGEN_EXPORT)
set(${project}_TABLEGEN "${${project}_TABLEGEN_DEFAULT}" CACHE
STRING "Native TableGen executable. Saves building one when cross-compiling.")
else()
# Internal tablegen
set(${project}_TABLEGEN "${${project}_TABLEGEN_DEFAULT}")
set_target_properties(${target} PROPERTIES EXCLUDE_FROM_ALL ON)
endif()
# Effective tblgen executable to be used:
set(${project}_TABLEGEN_EXE ${${project}_TABLEGEN} PARENT_SCOPE)
set(${project}_TABLEGEN_TARGET ${${project}_TABLEGEN} PARENT_SCOPE)
if(LLVM_USE_HOST_TOOLS)
if( ${${project}_TABLEGEN} STREQUAL "${target}" )
# The NATIVE tablegen executable *must* depend on the current target one
# otherwise the native one won't get rebuilt when the tablgen sources
# change, and we end up with incorrect builds.
build_native_tool(${target} ${project}_TABLEGEN_EXE DEPENDS ${target})
set(${project}_TABLEGEN_EXE ${${project}_TABLEGEN_EXE} PARENT_SCOPE)
add_custom_target(${target}-host DEPENDS ${${project}_TABLEGEN_EXE})
set(${project}_TABLEGEN_TARGET ${target}-host PARENT_SCOPE)
# If we're using the host tablegen, and utils were not requested, we have no
# need to build this tablegen.
if ( NOT LLVM_BUILD_UTILS )
set_target_properties(${target} PROPERTIES EXCLUDE_FROM_ALL ON)
endif()
endif()
endif()
if (ADD_TABLEGEN_DESTINATION AND NOT LLVM_INSTALL_TOOLCHAIN_ONLY AND
(LLVM_BUILD_UTILS OR ${target} IN_LIST LLVM_DISTRIBUTION_COMPONENTS))
set(export_arg)
if(ADD_TABLEGEN_EXPORT)
get_target_export_arg(${target} ${ADD_TABLEGEN_EXPORT} export_arg)
endif()
install(TARGETS ${target}
${export_arg}
COMPONENT ${target}
RUNTIME DESTINATION "${ADD_TABLEGEN_DESTINATION}")
if(NOT LLVM_ENABLE_IDE)
add_llvm_install_targets("install-${target}"
DEPENDS ${target}
COMPONENT ${target})
endif()
endif()
if(ADD_TABLEGEN_EXPORT)
string(TOUPPER ${ADD_TABLEGEN_EXPORT} export_upper)
set_property(GLOBAL APPEND PROPERTY ${export_upper}_EXPORTS ${target})
endif()
endmacro()
|
