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use -O0 when building release LLVM on sparc #61

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Feb 21, 2017
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use -O0 when building release LLVM on sparc #61

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6 changes: 6 additions & 0 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -698,6 +698,12 @@ if( MINGW )
llvm_replace_compiler_option(CMAKE_CXX_FLAGS_RELEASE "-O3" "-O2")
endif()

if( "${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU" AND "${LLVM_NATIVE_ARCH}" MATCHES "Sparc" )
# gcc 4.x, 5.x (at least) generate bad code on sparc above -O0 when compiling
# llvm; notably llvm-tblgen consistently core dumps.
llvm_replace_compiler_option(CMAKE_CXX_FLAGS_RELEASE "-O3" "-O0")
endif()

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