Use C99 to compile ISL
ISL with small integer optimization requires C99 to compile. gcc < 5.0 still uses C89 as default, so we need to enable the options to compile in C99 mode. This patch is preparing the actual activation of small integer optimization. Differential version: http://reviews.llvm.org/D10610 Reviewers: grosser llvm-svn: 240322
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@ -39,8 +39,13 @@ POLLY_CXXFLAGS += "-fno-rtti -fno-exceptions"
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#
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#
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# We also disable all warnings, as these should be fixed upstream. There is
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# We also disable all warnings, as these should be fixed upstream. There is
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# no value in reporting them here.
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# no value in reporting them here.
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#
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# ISL with activated small integer optimization use C99 extern inline
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# semantics. In order to work, we need to enable C99 mode (instead the default
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# -std=gnu89 in case of gcc)
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POLLY_CFLAGS := -fvisibility=hidden
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POLLY_CFLAGS := -fvisibility=hidden
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POLLY_CFLAGS += -w
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POLLY_CFLAGS += -w
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POLLY_CFLAGS += -std=gnu99
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CUDALIB_FOUND := @cuda_found@
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CUDALIB_FOUND := @cuda_found@
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@ -71,3 +71,13 @@ macro(add_polly_loadable_module name)
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LINK_FLAGS "-Wl,-flat_namespace -Wl,-undefined -Wl,suppress")
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LINK_FLAGS "-Wl,-flat_namespace -Wl,-undefined -Wl,suppress")
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endif()
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endif()
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endmacro(add_polly_loadable_module)
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endmacro(add_polly_loadable_module)
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# # Use C99-compatible compile mode for all C source files of a target.
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function(target_enable_c99 _target)
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if(CMAKE_VERSION VERSION_GREATER "3.1")
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set_target_properties("${_target}" PROPERTIES C_STANDARD 99)
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elseif(CMAKE_COMPILER_IS_GNUCC)
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get_target_property(_sources "${_target}" SOURCES)
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set_source_files_properties(${_sources} COMPILE_FLAGS "-std=gnu99")
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endif()
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endfunction()
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@ -189,6 +189,9 @@ add_polly_library(Polly
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${ISL_FILES}
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${ISL_FILES}
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)
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)
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# ISL requires at least C99 to compile. gcc < 5.0 use -std=gnu89 as default.
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target_enable_c99(Polly)
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if (BUILD_SHARED_LIBS)
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if (BUILD_SHARED_LIBS)
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target_link_libraries(Polly
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target_link_libraries(Polly
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LLVMSupport
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LLVMSupport
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