Retire bugpoint's -R. hack.

It got disconnected during the cmake conversion. For Miscompilation.cpp,
it was purely advisory for the user and the ToolRunner.cpp version was
trying to compensate for libs and bins in the same directory, which
hasn't been the case for a very long time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283022 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/Config/config.h.cmake

@@ -120,10 +120,6 @@
 /* Define to 1 if you have the <link.h> header file. */
 #cmakedefine HAVE_LINK_H ${HAVE_LINK_H}
 
-/* Define if you can use -Wl,-R. to pass -R. to the linker, in order to add
-   the current directory to the dynamic linker search path. */
-#undef HAVE_LINK_R
-
 /* Define to 1 if you have the <mach/mach.h> header file. */
 #cmakedefine HAVE_MACH_MACH_H ${HAVE_MACH_MACH_H}
 

tools/bugpoint/Miscompilation.cpp

@@ -1084,12 +1084,8 @@ Error BugDriver::debugCodeGenerator() {
   } else {
     outs() << "  llc " << TestModuleBC << " -o " << TestModuleBC << ".s\n";
     outs() << "  cc " << *SharedObject << " " << TestModuleBC.str() << ".s -o "
-           << TestModuleBC << ".exe";
-#if defined(HAVE_LINK_R)
-    outs() << " -Wl,-R.";
-#endif
-    outs() << "\n";
-    outs() << "  " << TestModuleBC << ".exe";
+           << TestModuleBC << ".exe\n";
+    outs() << "  ./" << TestModuleBC << ".exe";
   }
   for (unsigned i = 0, e = InputArgv.size(); i != e; ++i)
     outs() << " " << InputArgv[i];

tools/bugpoint/ToolRunner.cpp

@@ -679,9 +679,6 @@ Expected<int> CC::ExecuteProgram(const std::string &ProgramFile,
 
   CCArgs.push_back("-lm"); // Hard-code the math library...
   CCArgs.push_back("-O2"); // Optimize the program a bit...
-#if defined(HAVE_LINK_R)
-  CCArgs.push_back("-Wl,-R."); // Search this dir for .so files
-#endif
   if (TargetTriple.getArch() == Triple::sparc)
     CCArgs.push_back("-mcpu=v9");
   CCArgs.push_back(nullptr); // NULL terminator