[Support] Fix some warnings when self-hosting clang on Windows
llvm-svn: 186413
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@ -96,4 +96,9 @@ void llvm::llvm_unreachable_internal(const char *msg, const char *file,
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dbgs() << " at " << file << ":" << line;
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dbgs() << "!\n";
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abort();
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#ifdef LLVM_BUILTIN_UNREACHABLE
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// Windows systems and possibly others don't declare abort() to be noreturn,
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// so use the unreachable builtin to avoid a Clang self-host warning.
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LLVM_BUILTIN_UNREACHABLE;
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#endif
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}
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@ -756,7 +756,6 @@ error_code mapped_file_region::init(int FD, bool CloseFD, uint64_t Offset) {
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case readonly: flprotect = PAGE_READONLY; break;
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case readwrite: flprotect = PAGE_READWRITE; break;
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case priv: flprotect = PAGE_WRITECOPY; break;
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default: llvm_unreachable("invalid mapping mode");
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}
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FileMappingHandle = ::CreateFileMapping(FileHandle,
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@ -780,7 +779,6 @@ error_code mapped_file_region::init(int FD, bool CloseFD, uint64_t Offset) {
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case readonly: dwDesiredAccess = FILE_MAP_READ; break;
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case readwrite: dwDesiredAccess = FILE_MAP_WRITE; break;
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case priv: dwDesiredAccess = FILE_MAP_COPY; break;
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default: llvm_unreachable("invalid mapping mode");
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}
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Mapping = ::MapViewOfFile(FileMappingHandle,
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dwDesiredAccess,
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