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-rw-r--r--lib/Driver/Tools.cpp32
1 files changed, 16 insertions, 16 deletions
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 31d4360184508..270ed0a4e756f 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -7637,23 +7637,23 @@ void darwin::Linker::AddLinkArgs(Compilation &C, const ArgList &Args,
CmdArgs.push_back("-object_path_lto");
CmdArgs.push_back(TmpPath);
}
+ }
- // Use -lto_library option to specify the libLTO.dylib path. Try to find
- // it in clang installed libraries. If not found, the option is not used
- // and 'ld' will use its default mechanism to search for libLTO.dylib.
- if (Version[0] >= 133) {
- // Search for libLTO in <InstalledDir>/../lib/libLTO.dylib
- StringRef P = llvm::sys::path::parent_path(D.getInstalledDir());
- SmallString<128> LibLTOPath(P);
- llvm::sys::path::append(LibLTOPath, "lib");
- llvm::sys::path::append(LibLTOPath, "libLTO.dylib");
- if (llvm::sys::fs::exists(LibLTOPath)) {
- CmdArgs.push_back("-lto_library");
- CmdArgs.push_back(C.getArgs().MakeArgString(LibLTOPath));
- } else {
- D.Diag(diag::warn_drv_lto_libpath);
- }
- }
+ // Use -lto_library option to specify the libLTO.dylib path. Try to find
+ // it in clang installed libraries. ld64 will only look at this argument
+ // when it actually uses LTO, so libLTO.dylib only needs to exist at link
+ // time if ld64 decides that it needs to use LTO.
+ // Since this is passed unconditionally, ld64 will never look for libLTO.dylib
+ // next to it. That's ok since ld64 using a libLTO.dylib not matching the
+ // clang version won't work anyways.
+ if (Version[0] >= 133) {
+ // Search for libLTO in <InstalledDir>/../lib/libLTO.dylib
+ StringRef P = llvm::sys::path::parent_path(D.Dir);
+ SmallString<128> LibLTOPath(P);
+ llvm::sys::path::append(LibLTOPath, "lib");
+ llvm::sys::path::append(LibLTOPath, "libLTO.dylib");
+ CmdArgs.push_back("-lto_library");
+ CmdArgs.push_back(C.getArgs().MakeArgString(LibLTOPath));
}
// Derived from the "link" spec.