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Fix lit search to correctly respect LIBOMP_LLVM_LIT_EXECUTABLE as full program path. The variable passed to find_program() is created by CMake as a cache variable, and therefore can be directly overriden by the user. Since this was the design of LIBOMP_LLVM_LIT_EXECUTABLE (as can be deduced from the error messages) and there is no other use of LIT_EXECUTABLE, remove the redundant variable and pass LIBOMP_LLVM_LIT_EXECUTABLE directly to find_program(). Furthermore, the previous code did not work since the HINTS argument specifies more search directories rather than expected full path. Quoting the CMake documentation: > 3. Search the paths specified by the HINTS option. These should be > paths computed by system introspection, such as a hint provided by > the location of another item already found. Hard-coded guesses should > be specified with the PATHS option. Differential Revision: https://reviews.llvm.org/D24710 llvm-svn: 281887