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[CMake] Simplify CMake handling for zlib
Rather than handling zlib handling manually, use find_package from CMake to find zlib properly. Use this to normalize the LLVM_ENABLE_ZLIB, HAVE_ZLIB, HAVE_ZLIB_H. Furthermore, require zlib if LLVM_ENABLE_ZLIB is set to YES, which requires the distributor to explicitly select whether zlib is enabled or not. This simplifies the CMake handling and usage in the rest of the tooling. This is a reland of abb0075 with all followup changes and fixes that should address issues that were reported in PR44780. Differential Revision: https://reviews.llvm.org/D79219
This commit is contained in:
Petr Hosek
parent
3d9095e7da
commit
7417430bcf
@ -56,7 +56,6 @@ check_include_file(sys/types.h HAVE_SYS_TYPES_H)
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check_include_file(termios.h HAVE_TERMIOS_H)
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check_include_file(unistd.h HAVE_UNISTD_H)
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check_include_file(valgrind/valgrind.h HAVE_VALGRIND_VALGRIND_H)
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check_include_file(zlib.h HAVE_ZLIB_H)
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check_include_file(fenv.h HAVE_FENV_H)
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check_symbol_exists(FE_ALL_EXCEPT "fenv.h" HAVE_DECL_FE_ALL_EXCEPT)
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check_symbol_exists(FE_INEXACT "fenv.h" HAVE_DECL_FE_INEXACT)
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@ -118,19 +117,6 @@ endif()
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# Don't look for these libraries if we're using MSan, since uninstrumented third
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# party code may call MSan interceptors like strlen, leading to false positives.
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if(NOT LLVM_USE_SANITIZER MATCHES "Memory.*")
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set(HAVE_LIBZ 0)
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if(LLVM_ENABLE_ZLIB)
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foreach(library z zlib_static zlib)
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string(TOUPPER ${library} library_suffix)
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check_library_exists(${library} compress2 "" HAVE_LIBZ_${library_suffix})
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if(HAVE_LIBZ_${library_suffix})
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set(HAVE_LIBZ 1)
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set(ZLIB_LIBRARIES "${library}")
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break()
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endif()
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endforeach()
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endif()
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# Don't look for these libraries on Windows.
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if (NOT PURE_WINDOWS)
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# Skip libedit if using ASan as it contains memory leaks.
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@ -154,6 +140,15 @@ if(NOT LLVM_USE_SANITIZER MATCHES "Memory.*")
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set(HAVE_TERMINFO 0)
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endif()
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if(LLVM_ENABLE_ZLIB)
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if(LLVM_ENABLE_ZLIB STREQUAL FORCE_ON)
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find_package(ZLIB REQUIRED)
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else()
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find_package(ZLIB)
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endif()
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set(LLVM_ENABLE_ZLIB "${ZLIB_FOUND}")
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endif()
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find_library(ICONV_LIBRARY_PATH NAMES iconv libiconv libiconv-2 c)
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set(LLVM_LIBXML2_ENABLED 0)
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set(LIBXML2_FOUND 0)
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@ -175,10 +170,6 @@ if (LLVM_ENABLE_LIBXML2 STREQUAL "FORCE_ON" AND NOT LLVM_LIBXML2_ENABLED)
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message(FATAL_ERROR "Failed to congifure libxml2")
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endif()
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if (LLVM_ENABLE_ZLIB STREQUAL "FORCE_ON" AND NOT HAVE_LIBZ)
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message(FATAL_ERROR "Failed to configure zlib")
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endif()
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check_library_exists(xar xar_open "" HAVE_LIBXAR)
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if(HAVE_LIBXAR)
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set(XAR_LIB xar)
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@ -517,13 +508,6 @@ else( LLVM_ENABLE_THREADS )
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message(STATUS "Threads disabled.")
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endif()
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if (LLVM_ENABLE_ZLIB )
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# Check if zlib is available in the system.
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if ( NOT HAVE_ZLIB_H OR NOT HAVE_LIBZ )
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set(LLVM_ENABLE_ZLIB 0)
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endif()
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endif()
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if (LLVM_ENABLE_DOXYGEN)
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message(STATUS "Doxygen enabled.")
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find_package(Doxygen REQUIRED)
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@ -109,9 +109,6 @@
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/* Define to 1 if you have the `pthread_setname_np' function. */
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#cmakedefine HAVE_PTHREAD_SETNAME_NP ${HAVE_PTHREAD_SETNAME_NP}
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/* Define to 1 if you have the `z' library (-lz). */
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#cmakedefine HAVE_LIBZ ${HAVE_LIBZ}
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/* Define to 1 if you have the <link.h> header file. */
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#cmakedefine HAVE_LINK_H ${HAVE_LINK_H}
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@ -220,9 +217,6 @@
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/* Define to 1 if you have the <valgrind/valgrind.h> header file. */
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#cmakedefine HAVE_VALGRIND_VALGRIND_H ${HAVE_VALGRIND_VALGRIND_H}
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/* Define to 1 if you have the <zlib.h> header file. */
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#cmakedefine HAVE_ZLIB_H ${HAVE_ZLIB_H}
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/* Have host's _alloca */
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#cmakedefine HAVE__ALLOCA ${HAVE__ALLOCA}
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@ -1,7 +1,7 @@
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set(system_libs)
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if ( LLVM_ENABLE_ZLIB AND HAVE_LIBZ )
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set(system_libs ${system_libs} ${ZLIB_LIBRARIES})
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if(LLVM_ENABLE_ZLIB)
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set(imported_libs ZLIB::ZLIB)
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endif()
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if( MSVC OR MINGW )
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# libuuid required for FOLDERID_Profile usage in lib/Support/Windows/Path.inc.
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# advapi32 required for CryptAcquireContextW in lib/Support/Windows/Path.inc.
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@ -194,10 +194,34 @@ add_llvm_component_library(LLVMSupport
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${LLVM_MAIN_INCLUDE_DIR}/llvm/ADT
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${LLVM_MAIN_INCLUDE_DIR}/llvm/Support
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${Backtrace_INCLUDE_DIRS}
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LINK_LIBS ${system_libs} ${delayload_flags} ${Z3_LINK_FILES}
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LINK_LIBS ${system_libs} ${imported_libs} ${delayload_flags} ${Z3_LINK_FILES}
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)
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set_property(TARGET LLVMSupport PROPERTY LLVM_SYSTEM_LIBS "${system_libs}")
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set(llvm_system_libs ${system_libs})
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if(LLVM_ENABLE_ZLIB)
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string(TOUPPER ${CMAKE_BUILD_TYPE} build_type)
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get_property(zlib_library TARGET ZLIB::ZLIB PROPERTY LOCATION_${build_type})
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if(NOT zlib_library)
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get_property(zlib_library TARGET ZLIB::ZLIB PROPERTY LOCATION)
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endif()
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get_filename_component(zlib_library ${zlib_library} NAME)
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if(CMAKE_STATIC_LIBRARY_PREFIX AND zlib_library MATCHES "^${CMAKE_STATIC_LIBRARY_PREFIX}.*")
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STRING(REGEX REPLACE "^${CMAKE_STATIC_LIBRARY_PREFIX}" "" zlib_library ${zlib_library})
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endif()
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if(CMAKE_STATIC_LIBRARY_SUFFIX AND zlib_library MATCHES ".*${CMAKE_STATIC_LIBRARY_SUFFIX}$")
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STRING(REGEX REPLACE "${CMAKE_STATIC_LIBRARY_SUFFIX}$" "" zlib_library ${zlib_library})
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endif()
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if(CMAKE_SHARED_LIBRARY_PREFIX AND zlib_library MATCHES "^${CMAKE_SHARED_LIBRARY_PREFIX}.*")
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STRING(REGEX REPLACE "^${CMAKE_SHARED_LIBRARY_PREFIX}" "" zlib_library ${zlib_library})
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endif()
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if(CMAKE_SHARED_LIBRARY_SUFFIX AND zlib_library MATCHES ".*${CMAKE_SHARED_LIBRARY_SUFFIX}$")
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STRING(REGEX REPLACE "${CMAKE_SHARED_LIBRARY_SUFFIX}$" "" zlib_library ${zlib_library})
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endif()
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set(llvm_system_libs ${llvm_system_libs} "${zlib_library}")
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endif()
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set_property(TARGET LLVMSupport PROPERTY LLVM_SYSTEM_LIBS "${llvm_system_libs}")
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if(LLVM_WITH_Z3)
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target_include_directories(LLVMSupport SYSTEM
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@ -25,7 +25,7 @@
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using namespace llvm;
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#if LLVM_ENABLE_ZLIB == 0 || !HAVE_ZLIB_H
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#if !LLVM_ENABLE_ZLIB
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static const uint32_t CRCTable[256] = {
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0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
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@ -17,13 +17,13 @@
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#include "llvm/Support/Compiler.h"
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#include "llvm/Support/Error.h"
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#include "llvm/Support/ErrorHandling.h"
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#if LLVM_ENABLE_ZLIB == 1 && HAVE_ZLIB_H
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#if LLVM_ENABLE_ZLIB
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#include <zlib.h>
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#endif
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using namespace llvm;
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#if LLVM_ENABLE_ZLIB == 1 && HAVE_LIBZ
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#if LLVM_ENABLE_ZLIB
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static Error createError(StringRef Err) {
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return make_error<StringError>(Err, inconvertibleErrorCode());
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}
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@ -1,12 +1,12 @@
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llvm_canonicalize_cmake_booleans(
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BUILD_SHARED_LIBS
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HAVE_LIBXAR
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HAVE_LIBZ
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HAVE_OCAMLOPT
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HAVE_OCAML_OUNIT
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LLVM_ENABLE_DIA_SDK
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LLVM_ENABLE_FFI
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LLVM_ENABLE_THREADS
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LLVM_ENABLE_ZLIB
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LLVM_INCLUDE_GO_TESTS
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LLVM_LIBXML2_ENABLED
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LLVM_LINK_LLVM_DYLIB
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@ -33,7 +33,7 @@ config.host_cxx = "@HOST_CXX@"
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config.host_ldflags = '@HOST_LDFLAGS@'
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config.llvm_use_intel_jitevents = @LLVM_USE_INTEL_JITEVENTS@
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config.llvm_use_sanitizer = "@LLVM_USE_SANITIZER@"
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config.have_zlib = @HAVE_LIBZ@
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config.have_zlib = @LLVM_ENABLE_ZLIB@
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config.have_libxar = @HAVE_LIBXAR@
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config.have_dia_sdk = @LLVM_ENABLE_DIA_SDK@
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config.enable_ffi = @LLVM_ENABLE_FFI@
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@ -21,7 +21,7 @@ using namespace llvm;
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namespace {
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#if LLVM_ENABLE_ZLIB == 1 && HAVE_LIBZ
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#if LLVM_ENABLE_ZLIB
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void TestZlibCompression(StringRef Input, int Level) {
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SmallString<32> Compressed;
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