llvm.org GIT mirror llvm / master CMakeLists.txt
master

Tree @master (Download .tar.gz)

CMakeLists.txt @masterraw · history · blame

   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
 244
 245
 246
 247
 248
 249
 250
 251
 252
 253
 254
 255
 256
 257
 258
 259
 260
 261
 262
 263
 264
 265
 266
 267
 268
 269
 270
 271
 272
 273
 274
 275
 276
 277
 278
 279
 280
 281
 282
 283
 284
 285
 286
 287
 288
 289
 290
 291
 292
 293
 294
 295
 296
 297
 298
 299
 300
 301
 302
 303
 304
 305
 306
 307
 308
 309
 310
 311
 312
 313
 314
 315
 316
 317
 318
 319
 320
 321
 322
 323
 324
 325
 326
 327
 328
 329
 330
 331
 332
 333
 334
 335
 336
 337
 338
 339
 340
 341
 342
 343
 344
 345
 346
 347
 348
 349
 350
 351
 352
 353
 354
 355
 356
 357
 358
 359
 360
 361
 362
 363
 364
 365
 366
 367
 368
 369
 370
 371
 372
 373
 374
 375
 376
 377
 378
 379
 380
 381
 382
 383
 384
 385
 386
 387
 388
 389
 390
 391
 392
 393
 394
 395
 396
 397
 398
 399
 400
 401
 402
 403
 404
 405
 406
 407
 408
 409
 410
 411
 412
 413
 414
 415
 416
 417
 418
 419
 420
 421
 422
 423
 424
 425
 426
 427
 428
 429
 430
 431
 432
 433
 434
 435
 436
 437
 438
 439
 440
 441
 442
 443
 444
 445
 446
 447
 448
 449
 450
 451
 452
 453
 454
 455
 456
 457
 458
 459
 460
 461
 462
 463
 464
 465
 466
 467
 468
 469
 470
 471
 472
 473
 474
 475
 476
 477
 478
 479
 480
 481
 482
 483
 484
 485
 486
 487
 488
 489
 490
 491
 492
 493
 494
 495
 496
 497
 498
 499
 500
 501
 502
 503
 504
 505
 506
 507
 508
 509
 510
 511
 512
 513
 514
 515
 516
 517
 518
 519
 520
 521
 522
 523
 524
 525
 526
 527
 528
 529
 530
 531
 532
 533
 534
 535
 536
 537
 538
 539
 540
 541
 542
 543
 544
 545
 546
 547
 548
 549
 550
 551
 552
 553
 554
 555
 556
 557
 558
 559
 560
 561
 562
 563
 564
 565
 566
 567
 568
 569
 570
 571
 572
 573
 574
 575
 576
 577
 578
 579
 580
 581
 582
 583
 584
 585
 586
 587
 588
 589
 590
 591
 592
 593
 594
 595
 596
 597
 598
 599
 600
 601
 602
 603
 604
 605
 606
 607
 608
 609
 610
 611
 612
 613
 614
 615
 616
 617
 618
 619
 620
 621
 622
 623
 624
 625
 626
 627
 628
 629
 630
 631
 632
 633
 634
 635
 636
 637
 638
 639
 640
 641
 642
 643
 644
 645
 646
 647
 648
 649
 650
 651
 652
 653
 654
 655
 656
 657
 658
 659
 660
 661
 662
 663
 664
 665
 666
 667
 668
 669
 670
 671
 672
 673
 674
 675
 676
 677
 678
 679
 680
 681
 682
 683
 684
 685
 686
 687
 688
 689
 690
 691
 692
 693
 694
 695
 696
 697
 698
 699
 700
 701
 702
 703
 704
 705
 706
 707
 708
 709
 710
 711
 712
 713
 714
 715
 716
 717
 718
 719
 720
 721
 722
 723
 724
 725
 726
 727
 728
 729
 730
 731
 732
 733
 734
 735
 736
 737
 738
 739
 740
 741
 742
 743
 744
 745
 746
 747
 748
 749
 750
 751
 752
 753
 754
 755
 756
 757
 758
 759
 760
 761
 762
 763
 764
 765
 766
 767
 768
 769
 770
 771
 772
 773
 774
 775
 776
 777
 778
 779
 780
 781
 782
 783
 784
 785
 786
 787
 788
 789
 790
 791
 792
 793
 794
 795
 796
 797
 798
 799
 800
 801
 802
 803
 804
 805
 806
 807
 808
 809
 810
 811
 812
 813
 814
 815
 816
 817
 818
 819
 820
 821
 822
 823
 824
 825
 826
 827
 828
 829
 830
 831
 832
 833
 834
 835
 836
 837
 838
 839
 840
 841
 842
 843
 844
 845
 846
 847
 848
 849
 850
 851
 852
 853
 854
 855
 856
 857
 858
 859
 860
 861
 862
 863
 864
 865
 866
 867
 868
 869
 870
 871
 872
 873
 874
 875
 876
 877
 878
 879
 880
 881
 882
 883
 884
 885
 886
 887
 888
 889
 890
 891
 892
 893
 894
 895
 896
 897
 898
 899
 900
 901
 902
 903
 904
 905
 906
 907
 908
 909
 910
 911
 912
 913
 914
 915
 916
 917
 918
 919
 920
 921
 922
 923
 924
 925
 926
 927
 928
 929
 930
 931
 932
 933
 934
 935
 936
 937
 938
 939
 940
 941
 942
 943
 944
 945
 946
 947
 948
 949
 950
 951
 952
 953
 954
 955
 956
 957
 958
 959
 960
 961
 962
 963
 964
 965
 966
 967
 968
 969
 970
 971
 972
 973
 974
 975
 976
 977
 978
 979
 980
 981
 982
 983
 984
 985
 986
 987
 988
 989
 990
 991
 992
 993
 994
 995
 996
 997
 998
 999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
# See docs/CMake.html for instructions about how to build LLVM with CMake.

cmake_minimum_required(VERSION 3.4.3)

cmake_policy(SET CMP0022 NEW)

cmake_policy(SET CMP0048 NEW)

# CMake 3.1 and higher include generator expressions of the form
# $<TARGETLIB:obj> in the SOURCES property.  These need to be
# stripped everywhere that access the SOURCES property, so we just
# defer to the OLD behavior of not including generator expressions
# in the output for now.
cmake_policy(SET CMP0051 OLD)

cmake_policy(SET CMP0056 NEW)

cmake_policy(SET CMP0057 NEW)

if(NOT DEFINED LLVM_VERSION_MAJOR)
  set(LLVM_VERSION_MAJOR 7)
endif()
if(NOT DEFINED LLVM_VERSION_MINOR)
  set(LLVM_VERSION_MINOR 0)
endif()
if(NOT DEFINED LLVM_VERSION_PATCH)
  set(LLVM_VERSION_PATCH 0)
endif()
if(NOT DEFINED LLVM_VERSION_SUFFIX)
  set(LLVM_VERSION_SUFFIX svn)
endif()

if (NOT PACKAGE_VERSION)
  set(PACKAGE_VERSION
    "${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}.${LLVM_VERSION_PATCH}${LLVM_VERSION_SUFFIX}")
endif()

if ((CMAKE_GENERATOR MATCHES "Visual Studio") AND (CMAKE_GENERATOR_TOOLSET STREQUAL ""))
  message(WARNING "Visual Studio generators use the x86 host compiler by "
                  "default, even for 64-bit targets. This can result in linker "
                  "instability and out of memory errors. To use the 64-bit "
                  "host compiler, pass -Thost=x64 on the CMake command line.")
endif()

project(LLVM
  VERSION ${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}.${LLVM_VERSION_PATCH}
  LANGUAGES C CXX ASM)

if (NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
  message(STATUS "No build type selected, default to Debug")
  set(CMAKE_BUILD_TYPE "Debug" CACHE STRING "Build type (default Debug)" FORCE)
endif()

# This should only apply if you are both on an Apple host, and targeting Apple.
if(CMAKE_HOST_APPLE AND APPLE)
  # if CMAKE_LIBTOOL is not set, try and find it with xcrun or find_program
  if(NOT CMAKE_LIBTOOL)
    if(NOT CMAKE_XCRUN)
      find_program(CMAKE_XCRUN NAMES xcrun)
    endif()
    if(CMAKE_XCRUN)
      execute_process(COMMAND ${CMAKE_XCRUN} -find libtool
        OUTPUT_VARIABLE CMAKE_LIBTOOL
        OUTPUT_STRIP_TRAILING_WHITESPACE)
    endif()

    if(NOT CMAKE_LIBTOOL OR NOT EXISTS CMAKE_LIBTOOL)
      find_program(CMAKE_LIBTOOL NAMES libtool)
    endif()
  endif()

  get_property(languages GLOBAL PROPERTY ENABLED_LANGUAGES)
  if(CMAKE_LIBTOOL)
    set(CMAKE_LIBTOOL ${CMAKE_LIBTOOL} CACHE PATH "libtool executable")
    message(STATUS "Found libtool - ${CMAKE_LIBTOOL}")

    execute_process(COMMAND ${CMAKE_LIBTOOL} -V
      OUTPUT_VARIABLE LIBTOOL_V_OUTPUT
      OUTPUT_STRIP_TRAILING_WHITESPACE)
    if("${LIBTOOL_V_OUTPUT}" MATCHES ".*cctools-([0-9.]+).*")
      string(REGEX REPLACE ".*cctools-([0-9.]+).*" "\\1" LIBTOOL_VERSION
        ${LIBTOOL_V_OUTPUT})
      if(NOT LIBTOOL_VERSION VERSION_LESS "862")
        set(LIBTOOL_NO_WARNING_FLAG "-no_warning_for_no_symbols")
      endif()
    endif()

    foreach(lang ${languages})
      set(CMAKE_${lang}_CREATE_STATIC_LIBRARY
        "${CMAKE_LIBTOOL} -static ${LIBTOOL_NO_WARNING_FLAG} -o <TARGET> \
        <LINK_FLAGS> <OBJECTS> ")
    endforeach()
  endif()

  # If DYLD_LIBRARY_PATH is set we need to set it on archiver commands
  if(DYLD_LIBRARY_PATH)
    set(dyld_envar "DYLD_LIBRARY_PATH=${DYLD_LIBRARY_PATH}")
    foreach(lang ${languages})
      foreach(cmd ${CMAKE_${lang}_CREATE_STATIC_LIBRARY})
        list(APPEND CMAKE_${lang}_CREATE_STATIC_LIBRARY_NEW
             "${dyld_envar} ${cmd}")
      endforeach()
      set(CMAKE_${lang}_CREATE_STATIC_LIBRARY
        ${CMAKE_${lang}_CREATE_STATIC_LIBRARY_NEW})
    endforeach()
  endif()
endif()

# Side-by-side subprojects layout: automatically set the
# LLVM_EXTERNAL_${project}_SOURCE_DIR using LLVM_ALL_PROJECTS
# This allows an easy way of setting up a build directory for llvm and another
# one for llvm+clang+... using the same sources.
set(LLVM_ALL_PROJECTS "clang;libcxx;libcxxabi;lldb;compiler-rt;lld;polly;debuginfo-tests")
set(LLVM_ENABLE_PROJECTS "" CACHE STRING
	"Semicolon-separated list of projects to build (${LLVM_ALL_PROJECTS}), or \"all\".")
if( LLVM_ENABLE_PROJECTS STREQUAL "all" )
  set( LLVM_ENABLE_PROJECTS ${LLVM_ALL_PROJECTS})
endif()
foreach(proj ${LLVM_ENABLE_PROJECTS})
  set(PROJ_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../${proj}")
  if(NOT EXISTS "${PROJ_DIR}" OR NOT IS_DIRECTORY "${PROJ_DIR}")
    message(FATAL_ERROR "LLVM_ENABLE_PROJECTS requests ${proj} but directory not found: ${PROJ_DIR}")
  endif()
  string(TOUPPER "${proj}" upper_proj)
  STRING(REGEX REPLACE "-" "_" upper_proj ${upper_proj})
  set(LLVM_EXTERNAL_${upper_proj}_SOURCE_DIR   "${CMAKE_CURRENT_SOURCE_DIR}/../${proj}")
  # There is a widely spread opinion that clang-tools-extra should be merged
  # into clang. The following simulates it by always enabling clang-tools-extra
  # when enabling clang.
  if (proj STREQUAL "clang")
    set(LLVM_EXTERNAL_CLANG_TOOLS_EXTRA_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../clang-tools-extra")
  endif()
endforeach()

# Build llvm with ccache if the package is present
set(LLVM_CCACHE_BUILD OFF CACHE BOOL "Set to ON for a ccache enabled build")
if(LLVM_CCACHE_BUILD)
  find_program(CCACHE_PROGRAM ccache)
  if(CCACHE_PROGRAM)
      set(LLVM_CCACHE_SIZE "" CACHE STRING "Size of ccache")
      set(LLVM_CCACHE_DIR "" CACHE STRING "Directory to keep ccached data")
      set(CCACHE_PROGRAM "CCACHE_CPP2=yes CCACHE_HASHDIR=yes ${CCACHE_PROGRAM}")
      if (LLVM_CCACHE_SIZE)
        set(CCACHE_PROGRAM "CCACHE_SIZE=${LLVM_CCACHE_SIZE} ${CCACHE_PROGRAM}")
      endif()
      if (LLVM_CCACHE_DIR)
        set(CCACHE_PROGRAM "CCACHE_DIR=${LLVM_CCACHE_DIR} ${CCACHE_PROGRAM}")
      endif()
      set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ${CCACHE_PROGRAM})
  else()
    message(FATAL_ERROR "Unable to find the program ccache. Set LLVM_CCACHE_BUILD to OFF")
  endif()
endif()

option(LLVM_DEPENDENCY_DEBUGGING "Dependency debugging mode to verify correctly expressed library dependencies (Darwin only)" OFF)

# Some features of the LLVM build may be disallowed when dependency debugging is
# enabled. In particular you cannot use ccache because we want to force compile
# operations to always happen.
if(LLVM_DEPENDENCY_DEBUGGING)
  if(NOT CMAKE_HOST_APPLE)
    message(FATAL_ERROR "Dependency debugging is only currently supported on Darwin hosts.")
  endif()
  if(LLVM_CCACHE_BUILD)
    message(FATAL_ERROR "Cannot enable dependency debugging while using ccache.")
  endif()
endif()

option(LLVM_ENABLE_DAGISEL_COV "Debug: Prints tablegen patterns that were used for selecting" OFF)
option(LLVM_ENABLE_GISEL_COV "Enable collection of GlobalISel rule coverage" OFF)
if(LLVM_ENABLE_GISEL_COV)
  set(LLVM_GISEL_COV_PREFIX "${CMAKE_BINARY_DIR}/gisel-coverage-" CACHE STRING "Provide a filename prefix to collect the GlobalISel rule coverage")
endif()

# Add path for custom modules
set(CMAKE_MODULE_PATH
  ${CMAKE_MODULE_PATH}
  "${CMAKE_CURRENT_SOURCE_DIR}/cmake"
  "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules"
  )

# Generate a CompilationDatabase (compile_commands.json file) for our build,
# for use by clang_complete, YouCompleteMe, etc.
set(CMAKE_EXPORT_COMPILE_COMMANDS 1)

option(LLVM_INSTALL_BINUTILS_SYMLINKS
  "Install symlinks from the binutils tool names to the corresponding LLVM tools." OFF)

option(LLVM_INSTALL_UTILS "Include utility binaries in the 'install' target." OFF)

option(LLVM_INSTALL_TOOLCHAIN_ONLY "Only include toolchain files in the 'install' target." OFF)

option(LLVM_USE_FOLDERS "Enable solution folders in Visual Studio. Disable for Express versions." ON)
if ( LLVM_USE_FOLDERS )
  set_property(GLOBAL PROPERTY USE_FOLDERS ON)
endif()

include(VersionFromVCS)

option(LLVM_APPEND_VC_REV
  "Embed the version control system revision id in LLVM" ON)

set(PACKAGE_NAME LLVM)
set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}")
set(PACKAGE_BUGREPORT "http://llvm.org/bugs/")

set(BUG_REPORT_URL "${PACKAGE_BUGREPORT}" CACHE STRING
  "Default URL where bug reports are to be submitted.")

# Configure CPack.
set(CPACK_PACKAGE_INSTALL_DIRECTORY "LLVM")
set(CPACK_PACKAGE_VENDOR "LLVM")
set(CPACK_PACKAGE_VERSION_MAJOR ${LLVM_VERSION_MAJOR})
set(CPACK_PACKAGE_VERSION_MINOR ${LLVM_VERSION_MINOR})
set(CPACK_PACKAGE_VERSION_PATCH ${LLVM_VERSION_PATCH})
set(CPACK_PACKAGE_VERSION ${PACKAGE_VERSION})
set(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/LICENSE.TXT")
set(CPACK_NSIS_COMPRESSOR "/SOLID lzma \r\n SetCompressorDictSize 32")
if(WIN32 AND NOT UNIX)
  set(CPACK_PACKAGE_INSTALL_REGISTRY_KEY "LLVM")
  set(CPACK_PACKAGE_ICON "${CMAKE_CURRENT_SOURCE_DIR}\\\\cmake\\\\nsis_logo.bmp")
  set(CPACK_NSIS_MUI_ICON "${CMAKE_CURRENT_SOURCE_DIR}\\\\cmake\\\\nsis_icon.ico")
  set(CPACK_NSIS_MUI_UNIICON "${CMAKE_CURRENT_SOURCE_DIR}\\\\cmake\\\\nsis_icon.ico")
  set(CPACK_NSIS_MODIFY_PATH "ON")
  set(CPACK_NSIS_ENABLE_UNINSTALL_BEFORE_INSTALL "ON")
  set(CPACK_NSIS_EXTRA_INSTALL_COMMANDS
    "ExecWait '$INSTDIR/tools/msbuild/install.bat'")
  set(CPACK_NSIS_EXTRA_UNINSTALL_COMMANDS
    "ExecWait '$INSTDIR/tools/msbuild/uninstall.bat'")
  if( CMAKE_CL_64 )
    set(CPACK_NSIS_INSTALL_ROOT "$PROGRAMFILES64")
  endif()
endif()
include(CPack)

# Sanity check our source directory to make sure that we are not trying to
# generate an in-source build (unless on MSVC_IDE, where it is ok), and to make
# sure that we don't have any stray generated files lying around in the tree
# (which would end up getting picked up by header search, instead of the correct
# versions).
if( CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_DIR AND NOT MSVC_IDE )
  message(FATAL_ERROR "In-source builds are not allowed.
CMake would overwrite the makefiles distributed with LLVM.
Please create a directory and run cmake from there, passing the path
to this source directory as the last argument.
This process created the file `CMakeCache.txt' and the directory `CMakeFiles'.
Please delete them.")
endif()
if( NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR )
  file(GLOB_RECURSE
    tablegenned_files_on_include_dir
    "${CMAKE_CURRENT_SOURCE_DIR}/include/llvm/*.gen")
  file(GLOB_RECURSE
    tablegenned_files_on_lib_dir
    "${CMAKE_CURRENT_SOURCE_DIR}/lib/Target/*.inc")
  if( tablegenned_files_on_include_dir OR tablegenned_files_on_lib_dir)
    message(FATAL_ERROR "Apparently there is a previous in-source build,
probably as the result of running `configure' and `make' on
${CMAKE_CURRENT_SOURCE_DIR}.
This may cause problems. The suspicious files are:
${tablegenned_files_on_lib_dir}
${tablegenned_files_on_include_dir}
Please clean the source directory.")
  endif()
endif()

string(TOUPPER "${CMAKE_BUILD_TYPE}" uppercase_CMAKE_BUILD_TYPE)

if (CMAKE_BUILD_TYPE AND
    NOT uppercase_CMAKE_BUILD_TYPE MATCHES "^(DEBUG|RELEASE|RELWITHDEBINFO|MINSIZEREL)$")
  message(FATAL_ERROR "Invalid value for CMAKE_BUILD_TYPE: ${CMAKE_BUILD_TYPE}")
endif()

set(LLVM_LIBDIR_SUFFIX "" CACHE STRING "Define suffix of library directory name (32/64)" )

set(LLVM_TOOLS_INSTALL_DIR "bin" CACHE STRING "Path for binary subdirectory (defaults to 'bin')")
mark_as_advanced(LLVM_TOOLS_INSTALL_DIR)

set(LLVM_UTILS_INSTALL_DIR "bin" CACHE STRING
    "Path to install LLVM utilities (enabled by LLVM_INSTALL_UTILS=ON) (defaults to LLVM_TOOLS_INSTALL_DIR)")
mark_as_advanced(LLVM_TOOLS_INSTALL_DIR)

# They are used as destination of target generators.
set(LLVM_RUNTIME_OUTPUT_INTDIR ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin)
set(LLVM_LIBRARY_OUTPUT_INTDIR ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib${LLVM_LIBDIR_SUFFIX})
if(WIN32 OR CYGWIN)
  # DLL platform -- put DLLs into bin.
  set(LLVM_SHLIB_OUTPUT_INTDIR ${LLVM_RUNTIME_OUTPUT_INTDIR})
else()
  set(LLVM_SHLIB_OUTPUT_INTDIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
endif()

# Each of them corresponds to llvm-config's.
set(LLVM_TOOLS_BINARY_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR}) # --bindir
set(LLVM_LIBRARY_DIR      ${LLVM_LIBRARY_OUTPUT_INTDIR}) # --libdir
set(LLVM_MAIN_SRC_DIR     ${CMAKE_CURRENT_SOURCE_DIR}  ) # --src-root
set(LLVM_MAIN_INCLUDE_DIR ${LLVM_MAIN_SRC_DIR}/include ) # --includedir
set(LLVM_BINARY_DIR       ${CMAKE_CURRENT_BINARY_DIR}  ) # --prefix

# Note: LLVM_CMAKE_PATH does not include generated files
set(LLVM_CMAKE_PATH ${LLVM_MAIN_SRC_DIR}/cmake/modules)
set(LLVM_EXAMPLES_BINARY_DIR ${LLVM_BINARY_DIR}/examples)
set(LLVM_INCLUDE_DIR ${CMAKE_CURRENT_BINARY_DIR}/include)

# List of all targets to be built by default:
set(LLVM_ALL_TARGETS
  AArch64
  AMDGPU
  ARM
  BPF
  Hexagon
  Lanai
  Mips
  MSP430
  NVPTX
  PowerPC
  Sparc
  SystemZ
  X86
  XCore
  )

# List of targets with JIT support:
set(LLVM_TARGETS_WITH_JIT X86 PowerPC AArch64 ARM Mips SystemZ)

set(LLVM_TARGETS_TO_BUILD "all"
    CACHE STRING "Semicolon-separated list of targets to build, or \"all\".")

set(LLVM_EXPERIMENTAL_TARGETS_TO_BUILD ""
  CACHE STRING "Semicolon-separated list of experimental targets to build.")

option(BUILD_SHARED_LIBS
  "Build all libraries as shared libraries instead of static" OFF)

option(LLVM_ENABLE_BACKTRACES "Enable embedding backtraces on crash." ON)
if(LLVM_ENABLE_BACKTRACES)
  set(ENABLE_BACKTRACES 1)
endif()

option(LLVM_ENABLE_CRASH_OVERRIDES "Enable crash overrides." ON)
if(LLVM_ENABLE_CRASH_OVERRIDES)
  set(ENABLE_CRASH_OVERRIDES 1)
endif()

option(LLVM_ENABLE_FFI "Use libffi to call external functions from the interpreter" OFF)
set(FFI_LIBRARY_DIR "" CACHE PATH "Additional directory, where CMake should search for libffi.so")
set(FFI_INCLUDE_DIR "" CACHE PATH "Additional directory, where CMake should search for ffi.h or ffi/ffi.h")

set(LLVM_TARGET_ARCH "host"
  CACHE STRING "Set target to use for LLVM JIT or use \"host\" for automatic detection.")

option(LLVM_ENABLE_TERMINFO "Use terminfo database if available." ON)

set(LLVM_ENABLE_LIBXML2 "ON" CACHE STRING "Use libxml2 if available. Can be ON, OFF, or FORCE_ON")

option(LLVM_ENABLE_LIBEDIT "Use libedit if available." ON)

option(LLVM_ENABLE_THREADS "Use threads if available." ON)

option(LLVM_ENABLE_ZLIB "Use zlib for compression/decompression if available." ON)

if( LLVM_TARGETS_TO_BUILD STREQUAL "all" )
  set( LLVM_TARGETS_TO_BUILD ${LLVM_ALL_TARGETS} )
endif()

set(LLVM_TARGETS_TO_BUILD
   ${LLVM_TARGETS_TO_BUILD}
   ${LLVM_EXPERIMENTAL_TARGETS_TO_BUILD})
list(REMOVE_DUPLICATES LLVM_TARGETS_TO_BUILD)

option(LLVM_ENABLE_PIC "Build Position-Independent Code" ON)
option(LLVM_ENABLE_WARNINGS "Enable compiler warnings." ON)
option(LLVM_ENABLE_MODULES "Compile with C++ modules enabled." OFF)
if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
  option(LLVM_ENABLE_MODULE_DEBUGGING "Compile with -gmodules." ON)
  option(LLVM_ENABLE_LOCAL_SUBMODULE_VISIBILITY "Compile with -fmodules-local-submodule-visibility." OFF)
else()
  option(LLVM_ENABLE_MODULE_DEBUGGING "Compile with -gmodules." OFF)
  option(LLVM_ENABLE_LOCAL_SUBMODULE_VISIBILITY "Compile with -fmodules-local-submodule-visibility." ON)
endif()
option(LLVM_ENABLE_CXX1Y "Compile with C++1y enabled." OFF)
option(LLVM_ENABLE_CXX1Z "Compile with C++1z enabled." OFF)
option(LLVM_ENABLE_LIBCXX "Use libc++ if available." OFF)
option(LLVM_ENABLE_LLD "Use lld as C and C++ linker." OFF)
option(LLVM_ENABLE_PEDANTIC "Compile with pedantic enabled." ON)
option(LLVM_ENABLE_WERROR "Fail and stop if a warning is triggered." OFF)

option(LLVM_ENABLE_DUMP "Enable dump functions even when assertions are disabled" OFF)

if( NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "DEBUG" )
  option(LLVM_ENABLE_ASSERTIONS "Enable assertions" OFF)
else()
  option(LLVM_ENABLE_ASSERTIONS "Enable assertions" ON)
endif()

option(LLVM_ENABLE_EXPENSIVE_CHECKS "Enable expensive checks" OFF)

set(LLVM_ABI_BREAKING_CHECKS "WITH_ASSERTS" CACHE STRING
  "Enable abi-breaking checks.  Can be WITH_ASSERTS, FORCE_ON or FORCE_OFF.")

option(LLVM_FORCE_USE_OLD_HOST_TOOLCHAIN
       "Set to ON to force using an old, unsupported host toolchain." OFF)

option(LLVM_USE_INTEL_JITEVENTS
  "Use Intel JIT API to inform Intel(R) VTune(TM) Amplifier XE 2011 about JIT code"
  OFF)

if( LLVM_USE_INTEL_JITEVENTS )
  # Verify we are on a supported platform
  if( NOT CMAKE_SYSTEM_NAME MATCHES "Windows" AND NOT CMAKE_SYSTEM_NAME MATCHES "Linux" )
    message(FATAL_ERROR
      "Intel JIT API support is available on Linux and Windows only.")
  endif()
endif( LLVM_USE_INTEL_JITEVENTS )

option(LLVM_USE_OPROFILE
  "Use opagent JIT interface to inform OProfile about JIT code" OFF)

option(LLVM_EXTERNALIZE_DEBUGINFO
  "Generate dSYM files and strip executables and libraries (Darwin Only)" OFF)

# If enabled, verify we are on a platform that supports oprofile.
if( LLVM_USE_OPROFILE )
  if( NOT CMAKE_SYSTEM_NAME MATCHES "Linux" )
    message(FATAL_ERROR "OProfile support is available on Linux only.")
  endif( NOT CMAKE_SYSTEM_NAME MATCHES "Linux" )
endif( LLVM_USE_OPROFILE )

set(LLVM_USE_SANITIZER "" CACHE STRING
  "Define the sanitizer used to build binaries and tests.")
set(LLVM_LIB_FUZZING_ENGINE "" CACHE PATH
  "Path to fuzzing library for linking with fuzz targets")

option(LLVM_USE_SPLIT_DWARF
  "Use -gsplit-dwarf when compiling llvm." OFF)

option(LLVM_POLLY_LINK_INTO_TOOLS "Statically link Polly into tools (if available)" ON)
option(LLVM_POLLY_BUILD "Build LLVM with Polly" ON)

if (EXISTS ${LLVM_MAIN_SRC_DIR}/tools/polly/CMakeLists.txt)
  set(POLLY_IN_TREE TRUE)
elseif(LLVM_EXTERNAL_POLLY_SOURCE_DIR)
  set(POLLY_IN_TREE TRUE)
else()
  set(POLLY_IN_TREE FALSE)
endif()

if (LLVM_POLLY_BUILD AND POLLY_IN_TREE)
  set(WITH_POLLY ON)
else()
  set(WITH_POLLY OFF)
endif()

if (LLVM_POLLY_LINK_INTO_TOOLS AND WITH_POLLY)
  set(LINK_POLLY_INTO_TOOLS ON)
else()
  set(LINK_POLLY_INTO_TOOLS OFF)
endif()

# Define an option controlling whether we should build for 32-bit on 64-bit
# platforms, where supported.
if( CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32 )
  # TODO: support other platforms and toolchains.
  option(LLVM_BUILD_32_BITS "Build 32 bits executables and libraries." OFF)
endif()

# Define the default arguments to use with 'lit', and an option for the user to
# override.
set(LIT_ARGS_DEFAULT "-sv")
if (MSVC_IDE OR XCODE)
  set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")
endif()
set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit")

# On Win32 hosts, provide an option to specify the path to the GnuWin32 tools.
if( WIN32 AND NOT CYGWIN )
  set(LLVM_LIT_TOOLS_DIR "" CACHE PATH "Path to GnuWin32 tools")
endif()

# Define options to control the inclusion and default build behavior for
# components which may not strictly be necessary (tools, examples, and tests).
#
# This is primarily to support building smaller or faster project files.
option(LLVM_INCLUDE_TOOLS "Generate build targets for the LLVM tools." ON)
option(LLVM_BUILD_TOOLS
  "Build the LLVM tools. If OFF, just generate build targets." ON)

option(LLVM_INCLUDE_UTILS "Generate build targets for the LLVM utils." ON)
option(LLVM_BUILD_UTILS
  "Build LLVM utility binaries. If OFF, just generate build targets." ON)

option(LLVM_INCLUDE_RUNTIMES "Generate build targets for the LLVM runtimes." ON)
option(LLVM_BUILD_RUNTIMES
  "Build the LLVM runtimes. If OFF, just generate build targets." ON)

option(LLVM_BUILD_RUNTIME
  "Build the LLVM runtime libraries." ON)
option(LLVM_BUILD_EXAMPLES
  "Build the LLVM example programs. If OFF, just generate build targets." OFF)
option(LLVM_INCLUDE_EXAMPLES "Generate build targets for the LLVM examples" ON)

option(LLVM_BUILD_TESTS
  "Build LLVM unit tests. If OFF, just generate build targets." OFF)
option(LLVM_INCLUDE_TESTS "Generate build targets for the LLVM unit tests." ON)
option(LLVM_INCLUDE_GO_TESTS "Include the Go bindings tests in test build targets." ON)

option (LLVM_BUILD_DOCS "Build the llvm documentation." OFF)
option (LLVM_INCLUDE_DOCS "Generate build targets for llvm documentation." ON)
option (LLVM_ENABLE_DOXYGEN "Use doxygen to generate llvm API documentation." OFF)
option (LLVM_ENABLE_SPHINX "Use Sphinx to generate llvm documentation." OFF)
option (LLVM_ENABLE_OCAMLDOC "Build OCaml bindings documentation." ON)

set(LLVM_INSTALL_DOXYGEN_HTML_DIR "share/doc/llvm/doxygen-html"
    CACHE STRING "Doxygen-generated HTML documentation install directory")
set(LLVM_INSTALL_OCAMLDOC_HTML_DIR "share/doc/llvm/ocaml-html"
    CACHE STRING "OCamldoc-generated HTML documentation install directory")

option (LLVM_BUILD_EXTERNAL_COMPILER_RT
  "Build compiler-rt as an external project." OFF)

option (LLVM_VERSION_PRINTER_SHOW_HOST_TARGET_INFO
  "Show target and host info when tools are invoked with --version." ON)

# You can configure which libraries from LLVM you want to include in the
# shared library by setting LLVM_DYLIB_COMPONENTS to a semi-colon delimited
# list of LLVM components. All component names handled by llvm-config are valid.
if(NOT DEFINED LLVM_DYLIB_COMPONENTS)
  set(LLVM_DYLIB_COMPONENTS "all" CACHE STRING
    "Semicolon-separated list of components to include in libLLVM, or \"all\".")
endif()
option(LLVM_LINK_LLVM_DYLIB "Link tools against the libllvm dynamic library" OFF)
option(LLVM_BUILD_LLVM_C_DYLIB "Build libllvm-c re-export library (Darwin Only)" OFF)
set(LLVM_BUILD_LLVM_DYLIB_default OFF)
if(LLVM_LINK_LLVM_DYLIB OR LLVM_BUILD_LLVM_C_DYLIB)
  set(LLVM_BUILD_LLVM_DYLIB_default ON)
endif()
option(LLVM_BUILD_LLVM_DYLIB "Build libllvm dynamic library" ${LLVM_BUILD_LLVM_DYLIB_default})

option(LLVM_DYLIB_SYMBOL_VERSIONING OFF)

option(LLVM_OPTIMIZED_TABLEGEN "Force TableGen to be built with optimization" OFF)
if(CMAKE_CROSSCOMPILING OR (LLVM_OPTIMIZED_TABLEGEN AND (LLVM_ENABLE_ASSERTIONS OR CMAKE_CONFIGURATION_TYPES)))
  set(LLVM_USE_HOST_TOOLS ON)
endif()

if (MSVC_IDE AND NOT (MSVC_VERSION LESS 1900))
  option(LLVM_ADD_NATIVE_VISUALIZERS_TO_SOLUTION "Configure project to use Visual Studio native visualizers" TRUE)
else()
  set(LLVM_ADD_NATIVE_VISUALIZERS_TO_SOLUTION FALSE CACHE INTERNAL "For Visual Studio 2013, manually copy natvis files to Documents\\Visual Studio 2013\\Visualizers" FORCE)
endif()

if (LLVM_BUILD_INSTRUMENTED OR LLVM_BUILD_INSTRUMENTED_COVERAGE OR
    LLVM_ENABLE_IR_PGO)
  if(NOT LLVM_PROFILE_MERGE_POOL_SIZE)
    # A pool size of 1-2 is probably sufficient on a SSD. 3-4 should be fine
    # for spining disks. Anything higher may only help on slower mediums.
    set(LLVM_PROFILE_MERGE_POOL_SIZE "4")
  endif()
  if(NOT LLVM_PROFILE_FILE_PATTERN)
    if(NOT LLVM_PROFILE_DATA_DIR)
      file(TO_NATIVE_PATH "${LLVM_BINARY_DIR}/profiles" LLVM_PROFILE_DATA_DIR)
    endif()
		file(TO_NATIVE_PATH "${LLVM_PROFILE_DATA_DIR}/%${LLVM_PROFILE_MERGE_POOL_SIZE}m.profraw" LLVM_PROFILE_FILE_PATTERN)
  endif()
endif()

if (LLVM_BUILD_STATIC)
  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -static")
endif()

# Override the default target with an environment variable named by LLVM_TARGET_TRIPLE_ENV.
set(LLVM_TARGET_TRIPLE_ENV CACHE STRING "The name of environment variable to override default target. Disabled by blank.")
mark_as_advanced(LLVM_TARGET_TRIPLE_ENV)

# All options referred to from HandleLLVMOptions have to be specified
# BEFORE this include, otherwise options will not be correctly set on
# first cmake run
include(config-ix)

string(REPLACE "Native" ${LLVM_NATIVE_ARCH}
  LLVM_TARGETS_TO_BUILD "${LLVM_TARGETS_TO_BUILD}")
list(REMOVE_DUPLICATES LLVM_TARGETS_TO_BUILD)

# By default, we target the host, but this can be overridden at CMake
# invocation time.
set(LLVM_DEFAULT_TARGET_TRIPLE "${LLVM_HOST_TRIPLE}" CACHE STRING
  "Default target for which LLVM will generate code." )
set(TARGET_TRIPLE "${LLVM_DEFAULT_TARGET_TRIPLE}")
message(STATUS "LLVM host triple: ${LLVM_HOST_TRIPLE}")
message(STATUS "LLVM default target triple: ${LLVM_DEFAULT_TARGET_TRIPLE}")

include(HandleLLVMOptions)

# Verify that we can find a Python 2 interpreter.  Python 3 is unsupported.
# FIXME: We should support systems with only Python 3, but that requires work
# on LLDB.
set(Python_ADDITIONAL_VERSIONS 2.7)
include(FindPythonInterp)
if( NOT PYTHONINTERP_FOUND )
  message(FATAL_ERROR
"Unable to find Python interpreter, required for builds and testing.

Please install Python or specify the PYTHON_EXECUTABLE CMake variable.")
endif()

if( ${PYTHON_VERSION_STRING} VERSION_LESS 2.7 )
  message(FATAL_ERROR "Python 2.7 or newer is required")
endif()

######
# LLVMBuild Integration
#
# We use llvm-build to generate all the data required by the CMake based
# build system in one swoop:
#
#  - We generate a file (a CMake fragment) in the object root which contains
#    all the definitions that are required by CMake.
#
#  - We generate the library table used by llvm-config.
#
#  - We generate the dependencies for the CMake fragment, so that we will
#    automatically reconfigure outselves.

set(LLVMBUILDTOOL "${LLVM_MAIN_SRC_DIR}/utils/llvm-build/llvm-build")
set(LLVMCONFIGLIBRARYDEPENDENCIESINC
  "${LLVM_BINARY_DIR}/tools/llvm-config/LibraryDependencies.inc")
set(LLVMBUILDCMAKEFRAG
  "${LLVM_BINARY_DIR}/LLVMBuild.cmake")

# Create the list of optional components that are enabled
if (LLVM_USE_INTEL_JITEVENTS)
  set(LLVMOPTIONALCOMPONENTS IntelJITEvents)
endif (LLVM_USE_INTEL_JITEVENTS)
if (LLVM_USE_OPROFILE)
  set(LLVMOPTIONALCOMPONENTS ${LLVMOPTIONALCOMPONENTS} OProfileJIT)
endif (LLVM_USE_OPROFILE)

message(STATUS "Constructing LLVMBuild project information")
execute_process(
  COMMAND ${PYTHON_EXECUTABLE} -B ${LLVMBUILDTOOL}
            --native-target "${LLVM_NATIVE_ARCH}"
            --enable-targets "${LLVM_TARGETS_TO_BUILD}"
            --enable-optional-components "${LLVMOPTIONALCOMPONENTS}"
            --write-library-table ${LLVMCONFIGLIBRARYDEPENDENCIESINC}
            --write-cmake-fragment ${LLVMBUILDCMAKEFRAG}
            OUTPUT_VARIABLE LLVMBUILDOUTPUT
            ERROR_VARIABLE LLVMBUILDERRORS
            OUTPUT_STRIP_TRAILING_WHITESPACE
            ERROR_STRIP_TRAILING_WHITESPACE
  RESULT_VARIABLE LLVMBUILDRESULT)

# On Win32, CMake doesn't properly handle piping the default output/error
# streams into the GUI console. So, we explicitly catch and report them.
if( NOT "${LLVMBUILDOUTPUT}" STREQUAL "")
  message(STATUS "llvm-build output: ${LLVMBUILDOUTPUT}")
endif()
if( NOT "${LLVMBUILDRESULT}" STREQUAL "0" )
  message(FATAL_ERROR
    "Unexpected failure executing llvm-build: ${LLVMBUILDERRORS}")
endif()

# Include the generated CMake fragment. This will define properties from the
# LLVMBuild files in a format which is easy to consume from CMake, and will add
# the dependencies so that CMake will reconfigure properly when the LLVMBuild
# files change.
include(${LLVMBUILDCMAKEFRAG})

######

# Configure all of the various header file fragments LLVM uses which depend on
# configuration variables.
set(LLVM_ENUM_TARGETS "")
set(LLVM_ENUM_ASM_PRINTERS "")
set(LLVM_ENUM_ASM_PARSERS "")
set(LLVM_ENUM_DISASSEMBLERS "")
foreach(t ${LLVM_TARGETS_TO_BUILD})
  set( td ${LLVM_MAIN_SRC_DIR}/lib/Target/${t} )

  list(FIND LLVM_ALL_TARGETS ${t} idx)
  list(FIND LLVM_EXPERIMENTAL_TARGETS_TO_BUILD ${t} idy)
  # At this point, LLVMBUILDTOOL already checked all the targets passed in
  # LLVM_TARGETS_TO_BUILD and LLVM_EXPERIMENTAL_TARGETS_TO_BUILD, so
  # this test just makes sure that any experimental targets were passed via
  # LLVM_EXPERIMENTAL_TARGETS_TO_BUILD, not LLVM_TARGETS_TO_BUILD.
  if( idx LESS 0 AND idy LESS 0 )
    message(FATAL_ERROR "The target `${t}' is experimental and must be passed "
      "via LLVM_EXPERIMENTAL_TARGETS_TO_BUILD.")
  else()
    set(LLVM_ENUM_TARGETS "${LLVM_ENUM_TARGETS}LLVM_TARGET(${t})\n")
  endif()

  file(GLOB asmp_file "${td}/*AsmPrinter.cpp")
  if( asmp_file )
    set(LLVM_ENUM_ASM_PRINTERS
      "${LLVM_ENUM_ASM_PRINTERS}LLVM_ASM_PRINTER(${t})\n")
  endif()
  if( EXISTS ${td}/AsmParser/CMakeLists.txt )
    set(LLVM_ENUM_ASM_PARSERS
      "${LLVM_ENUM_ASM_PARSERS}LLVM_ASM_PARSER(${t})\n")
  endif()
  if( EXISTS ${td}/Disassembler/CMakeLists.txt )
    set(LLVM_ENUM_DISASSEMBLERS
      "${LLVM_ENUM_DISASSEMBLERS}LLVM_DISASSEMBLER(${t})\n")
  endif()
endforeach(t)

# Produce the target definition files, which provide a way for clients to easily
# include various classes of targets.
configure_file(
  ${LLVM_MAIN_INCLUDE_DIR}/llvm/Config/AsmPrinters.def.in
  ${LLVM_INCLUDE_DIR}/llvm/Config/AsmPrinters.def
  )
configure_file(
  ${LLVM_MAIN_INCLUDE_DIR}/llvm/Config/AsmParsers.def.in
  ${LLVM_INCLUDE_DIR}/llvm/Config/AsmParsers.def
  )
configure_file(
  ${LLVM_MAIN_INCLUDE_DIR}/llvm/Config/Disassemblers.def.in
  ${LLVM_INCLUDE_DIR}/llvm/Config/Disassemblers.def
  )
configure_file(
  ${LLVM_MAIN_INCLUDE_DIR}/llvm/Config/Targets.def.in
  ${LLVM_INCLUDE_DIR}/llvm/Config/Targets.def
  )

# Configure the three LLVM configuration header files.
configure_file(
  ${LLVM_MAIN_INCLUDE_DIR}/llvm/Config/config.h.cmake
  ${LLVM_INCLUDE_DIR}/llvm/Config/config.h)
configure_file(
  ${LLVM_MAIN_INCLUDE_DIR}/llvm/Config/llvm-config.h.cmake
  ${LLVM_INCLUDE_DIR}/llvm/Config/llvm-config.h)
configure_file(
  ${LLVM_MAIN_INCLUDE_DIR}/llvm/Config/abi-breaking.h.cmake
  ${LLVM_INCLUDE_DIR}/llvm/Config/abi-breaking.h)
configure_file(
  ${LLVM_MAIN_INCLUDE_DIR}/llvm/Support/DataTypes.h.cmake
  ${LLVM_INCLUDE_DIR}/llvm/Support/DataTypes.h)

# Add target for generating source rpm package.
set(LLVM_SRPM_USER_BINARY_SPECFILE ${CMAKE_CURRENT_SOURCE_DIR}/llvm.spec.in
    CACHE FILEPATH ".spec file to use for srpm generation")
set(LLVM_SRPM_BINARY_SPECFILE ${CMAKE_CURRENT_BINARY_DIR}/llvm.spec)
set(LLVM_SRPM_DIR "${CMAKE_CURRENT_BINARY_DIR}/srpm")

# SVN_REVISION and GIT_COMMIT get set by the call to add_version_info_from_vcs.
# DUMMY_VAR contains a version string which we don't care about.
add_version_info_from_vcs(DUMMY_VAR)
if ( SVN_REVISION )
  set(LLVM_RPM_SPEC_REVISION "r${SVN_REVISION}")
elseif ( GIT_COMMIT )
  set (LLVM_RPM_SPEC_REVISION "g${GIT_COMMIT}")
endif()

configure_file(
  ${LLVM_SRPM_USER_BINARY_SPECFILE}
  ${LLVM_SRPM_BINARY_SPECFILE} @ONLY)

add_custom_target(srpm
  COMMAND cpack -G TGZ --config CPackSourceConfig.cmake -B ${LLVM_SRPM_DIR}/SOURCES
  COMMAND rpmbuild -bs --define '_topdir ${LLVM_SRPM_DIR}' ${LLVM_SRPM_BINARY_SPECFILE})
set_target_properties(srpm PROPERTIES FOLDER "Misc")


# They are not referenced. See set_output_directory().
set( CMAKE_RUNTIME_OUTPUT_DIRECTORY ${LLVM_BINARY_DIR}/bin )
set( CMAKE_LIBRARY_OUTPUT_DIRECTORY ${LLVM_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX} )
set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${LLVM_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX} )

if(APPLE AND DARWIN_LTO_LIBRARY)
  set(CMAKE_EXE_LINKER_FLAGS
    "${CMAKE_EXE_LINKER_FLAGS} -Wl,-lto_library -Wl,${DARWIN_LTO_LIBRARY}")
  set(CMAKE_SHARED_LINKER_FLAGS
    "${CMAKE_SHARED_LINKER_FLAGS} -Wl,-lto_library -Wl,${DARWIN_LTO_LIBRARY}")
  set(CMAKE_MODULE_LINKER_FLAGS
    "${CMAKE_MODULE_LINKER_FLAGS} -Wl,-lto_library -Wl,${DARWIN_LTO_LIBRARY}")
endif()

# Work around a broken bfd ld behavior. When linking a binary with a
# foo.so library, it will try to find any library that foo.so uses and
# check its symbols. This is wasteful (the check was done when foo.so
# was created) and can fail since it is not the dynamic linker and
# doesn't know how to handle search paths correctly.
if (UNIX AND NOT APPLE AND NOT ${CMAKE_SYSTEM_NAME} MATCHES "SunOS|AIX")
  set(CMAKE_EXE_LINKER_FLAGS
      "${CMAKE_EXE_LINKER_FLAGS} -Wl,-allow-shlib-undefined")
endif()

set(CMAKE_INCLUDE_CURRENT_DIR ON)

include_directories( ${LLVM_INCLUDE_DIR} ${LLVM_MAIN_INCLUDE_DIR})

# when crosscompiling import the executable targets from a file
if(LLVM_USE_HOST_TOOLS)
  include(CrossCompile)
endif(LLVM_USE_HOST_TOOLS)
if(LLVM_TARGET_IS_CROSSCOMPILE_HOST)
# Dummy use to avoid CMake Warning: Manually-specified variables were not used
# (this is a variable that CrossCompile sets on recursive invocations)
endif()

if(${CMAKE_SYSTEM_NAME} MATCHES "(FreeBSD|DragonFly)")
  # On FreeBSD, /usr/local/* is not used by default. In order to build LLVM
  # with libxml2, iconv.h, etc., we must add /usr/local paths.
  include_directories(SYSTEM "/usr/local/include")
  link_directories("/usr/local/lib")
endif(${CMAKE_SYSTEM_NAME} MATCHES "(FreeBSD|DragonFly)")

if( ${CMAKE_SYSTEM_NAME} MATCHES SunOS )
   # special hack for Solaris to handle crazy system sys/regset.h
   include_directories("${LLVM_MAIN_INCLUDE_DIR}/llvm/Support/Solaris")
endif( ${CMAKE_SYSTEM_NAME} MATCHES SunOS )

# Make sure we don't get -rdynamic in every binary. For those that need it,
# use export_executable_symbols(target).
set(CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS "")

set(LLVM_PROFDATA_FILE "" CACHE FILEPATH
  "Profiling data file to use when compiling in order to improve runtime performance.")

if(LLVM_PROFDATA_FILE AND EXISTS ${LLVM_PROFDATA_FILE})
  if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" )
    add_definitions("-fprofile-instr-use=${LLVM_PROFDATA_FILE}")
  else()
    message(FATAL_ERROR "LLVM_PROFDATA_FILE can only be specified when compiling with clang")
  endif()
endif()

include(AddLLVM)
include(TableGen)

if( MINGW )
  # People report that -O3 is unreliable on MinGW. The traditional
  # build also uses -O2 for that reason:
  llvm_replace_compiler_option(CMAKE_CXX_FLAGS_RELEASE "-O3" "-O2")
endif()

# Put this before tblgen. Else we have a circular dependence.
add_subdirectory(lib/Demangle)
add_subdirectory(lib/Support)
add_subdirectory(lib/TableGen)

add_subdirectory(utils/TableGen)

add_subdirectory(include/llvm)

add_subdirectory(lib)

if( LLVM_INCLUDE_UTILS )
  add_subdirectory(utils/FileCheck)
  add_subdirectory(utils/PerfectShuffle)
  add_subdirectory(utils/count)
  add_subdirectory(utils/not)
  add_subdirectory(utils/yaml-bench)
else()
  if ( LLVM_INCLUDE_TESTS )
    message(FATAL_ERROR "Including tests when not building utils will not work.
    Either set LLVM_INCLUDE_UTILS to On, or set LLVM_INCLDE_TESTS to Off.")
  endif()
endif()

# Use LLVM_ADD_NATIVE_VISUALIZERS_TO_SOLUTION instead of LLVM_INCLUDE_UTILS because it is not really a util
if (LLVM_ADD_NATIVE_VISUALIZERS_TO_SOLUTION)
  add_subdirectory(utils/LLVMVisualizers)
endif()

foreach( binding ${LLVM_BINDINGS_LIST} )
  if( EXISTS "${LLVM_MAIN_SRC_DIR}/bindings/${binding}/CMakeLists.txt" )
    add_subdirectory(bindings/${binding})
  endif()
endforeach()

add_subdirectory(projects)

if( LLVM_INCLUDE_TOOLS )
  add_subdirectory(tools)
endif()

if( LLVM_INCLUDE_RUNTIMES )
  add_subdirectory(runtimes)
endif()

if( LLVM_INCLUDE_EXAMPLES )
  add_subdirectory(examples)
endif()

if( LLVM_INCLUDE_TESTS )
  if(EXISTS ${LLVM_MAIN_SRC_DIR}/projects/test-suite AND TARGET clang)
    include(LLVMExternalProjectUtils)
    llvm_ExternalProject_Add(test-suite ${LLVM_MAIN_SRC_DIR}/projects/test-suite
      USE_TOOLCHAIN
      EXCLUDE_FROM_ALL
      NO_INSTALL
      ALWAYS_CLEAN)
  endif()
  add_subdirectory(utils/lit)
  add_subdirectory(test)
  add_subdirectory(unittests)
  if( LLVM_INCLUDE_UTILS )
    add_subdirectory(utils/unittest)
  endif()

  if (WIN32)
    # This utility is used to prevent crashing tests from calling Dr. Watson on
    # Windows.
    add_subdirectory(utils/KillTheDoctor)
  endif()

  # Add a global check rule now that all subdirectories have been traversed
  # and we know the total set of lit testsuites.
  get_property(LLVM_LIT_TESTSUITES GLOBAL PROPERTY LLVM_LIT_TESTSUITES)
  get_property(LLVM_LIT_PARAMS GLOBAL PROPERTY LLVM_LIT_PARAMS)
  get_property(LLVM_LIT_DEPENDS GLOBAL PROPERTY LLVM_LIT_DEPENDS)
  get_property(LLVM_LIT_EXTRA_ARGS GLOBAL PROPERTY LLVM_LIT_EXTRA_ARGS)
  get_property(LLVM_ADDITIONAL_TEST_TARGETS
               GLOBAL PROPERTY LLVM_ADDITIONAL_TEST_TARGETS)
  get_property(LLVM_ADDITIONAL_TEST_DEPENDS
               GLOBAL PROPERTY LLVM_ADDITIONAL_TEST_DEPENDS)
  add_lit_target(check-all
    "Running all regression tests"
    ${LLVM_LIT_TESTSUITES}
    PARAMS ${LLVM_LIT_PARAMS}
    DEPENDS ${LLVM_LIT_DEPENDS} ${LLVM_ADDITIONAL_TEST_TARGETS}
    ARGS ${LLVM_LIT_EXTRA_ARGS}
    )
  if(TARGET check-runtimes)
    add_dependencies(check-all check-runtimes)
  endif()
  add_custom_target(test-depends
                    DEPENDS ${LLVM_LIT_DEPENDS} ${LLVM_ADDITIONAL_TEST_DEPENDS})
  set_target_properties(test-depends PROPERTIES FOLDER "Tests")
endif()

if (LLVM_INCLUDE_DOCS)
  add_subdirectory(docs)
endif()

add_subdirectory(cmake/modules)

# Do this last so that all lit targets have already been created.
if (LLVM_INCLUDE_UTILS)
  add_subdirectory(utils/llvm-lit)
endif()

if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
  install(DIRECTORY include/llvm include/llvm-c
    DESTINATION include
    COMPONENT llvm-headers
    FILES_MATCHING
    PATTERN "*.def"
    PATTERN "*.h"
    PATTERN "*.td"
    PATTERN "*.inc"
    PATTERN "LICENSE.TXT"
    PATTERN ".svn" EXCLUDE
    )

  install(DIRECTORY ${LLVM_INCLUDE_DIR}/llvm
    DESTINATION include
    COMPONENT llvm-headers
    FILES_MATCHING
    PATTERN "*.def"
    PATTERN "*.h"
    PATTERN "*.gen"
    PATTERN "*.inc"
    # Exclude include/llvm/CMakeFiles/intrinsics_gen.dir, matched by "*.def"
    PATTERN "CMakeFiles" EXCLUDE
    PATTERN "config.h" EXCLUDE
    PATTERN ".svn" EXCLUDE
    )

  # Installing the headers needs to depend on generating any public
  # tablegen'd headers.
  add_custom_target(llvm-headers DEPENDS intrinsics_gen)
  set_target_properties(llvm-headers PROPERTIES FOLDER "Misc")

  if (NOT CMAKE_CONFIGURATION_TYPES)
    add_llvm_install_targets(install-llvm-headers
                             COMPONENT llvm-headers)
  endif()
endif()

# This must be at the end of the LLVM root CMakeLists file because it must run
# after all targets are created.
if(LLVM_DISTRIBUTION_COMPONENTS)
  if(CMAKE_CONFIGURATION_TYPES)
    message(FATAL_ERROR "LLVM_DISTRIBUTION_COMPONENTS cannot be specified with multi-configuration generators (i.e. Xcode or Visual Studio)")
  endif()

  add_custom_target(distribution)
  add_custom_target(install-distribution)
  add_custom_target(install-distribution-stripped)
  foreach(target ${LLVM_DISTRIBUTION_COMPONENTS})
    if(TARGET ${target})
      add_dependencies(distribution ${target})
    else()
      message(SEND_ERROR "Specified distribution component '${target}' doesn't have a target")
    endif()

    if(TARGET install-${target})
      add_dependencies(install-distribution install-${target})
    else()
      message(SEND_ERROR "Specified distribution component '${target}' doesn't have an install target")
    endif()

    if(TARGET install-${target}-stripped)
      add_dependencies(install-distribution-stripped install-${target}-stripped)
    else()
      message(SEND_ERROR "Specified distribution component '${target}' doesn't have an install-stripped target."
                         " Its installation target creation should be changed to use add_llvm_install_targets,"
                         " or you should manually create the 'install-${target}-stripped' target.")
    endif()
  endforeach()
endif()

# This allows us to deploy the Universal CRT DLLs by passing -DCMAKE_INSTALL_UCRT_LIBRARIES=ON to CMake
if (MSVC AND CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows")
  include(InstallRequiredSystemLibraries)
endif()